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39,610
DOTmark - A Benchmark for Discrete Optimal Transport
math.OC
The Wasserstein metric or earth mover's distance (EMD) is a useful tool in statistics, machine learning and computer science with many applications to biological or medical imaging, among others. Especially in the light of increasingly complex data, the computation of these distances via optimal transport is often the ...
computer science
39,611
Visual Place Recognition with Probabilistic Vertex Voting
cs.RO
We propose a novel scoring concept for visual place recognition based on nearest neighbor descriptor voting and demonstrate how the algorithm naturally emerges from the problem formulation. Based on the observation that the number of votes for matching places can be evaluated using a binomial distribution model, loop c...
computer science
39,612
Digital Makeup from Internet Images
cs.CV
We present a novel approach of color transfer between images by exploring their high-level semantic information. First, we set up a database which consists of the collection of downloaded images from the internet, which are segmented automatically by using matting techniques. We then, extract image foregrounds from bot...
computer science
39,613
Partial Procedural Geometric Model Fitting for Point Clouds
cs.GR
Geometric model fitting is a fundamental task in computer graphics and computer vision. However, most geometric model fitting methods are unable to fit an arbitrary geometric model (e.g. a surface with holes) to incomplete data, due to that the similarity metrics used in these methods are unable to measure the rigid pa...
computer science
39,614
ARTiS: Appearance-based Action Recognition in Task Space for Real-Time Human-Robot Collaboration
cs.RO
To have a robot actively supporting a human during a collaborative task, it is crucial that robots are able to identify the current action in order to predict the next one. Common approaches make use of high-level knowledge, such as object affordances, semantics or understanding of actions in terms of pre- and post-con...
computer science
39,615
Shape-based defect classification for Non Destructive Testing
cs.CV
The aim of this work is to classify the aerospace structure defects detected by eddy current non-destructive testing. The proposed method is based on the assumption that the defect is bound to the reaction of the probe coil impedance during the test. Impedance plane analysis is used to extract a feature vector from the...
computer science
39,616
Edge Based Grid Super-Imposition for Crowd Emotion Recognition
cs.CV
Numerous automatic continuous emotion detection system studies have examined mostly use of videos and images containing individual person expressing emotions. This study examines the detection of spontaneous emotions in a group and crowd settings. Edge detection was used with a grid of lines superimposition to extract ...
computer science
39,617
Robot Vision Architecture for Autonomous Clothes Manipulation
cs.RO
This paper presents a novel robot vision architecture for perceiving generic 3D clothes configurations. Our architecture is hierarchically structured, starting from low-level curvatures, across mid-level geometric shapes \& topology descriptions; and finally approaching high-level semantic surface structure description...
computer science
39,618
Visual-Inertial Monocular SLAM with Map Reuse
cs.RO
In recent years there have been excellent results in Visual-Inertial Odometry techniques, which aim to compute the incremental motion of the sensor with high accuracy and robustness. However these approaches lack the capability to close loops, and trajectory estimation accumulates drift even if the sensor is continuall...
computer science
39,619
Fast and Accurate Surface Normal Integration on Non-Rectangular Domains
cs.NA
The integration of surface normals for the purpose of computing the shape of a surface in 3D space is a classic problem in computer vision. However, even nowadays it is still a challenging task to devise a method that combines the flexibility to work on non-trivial computational domains with high accuracy, robustness a...
computer science
39,620
ORB-SLAM2: an Open-Source SLAM System for Monocular, Stereo and RGB-D Cameras
cs.RO
We present ORB-SLAM2 a complete SLAM system for monocular, stereo and RGB-D cameras, including map reuse, loop closing and relocalization capabilities. The system works in real-time on standard CPUs in a wide variety of environments from small hand-held indoors sequences, to drones flying in industrial environments and...
computer science
39,621
Detecting Rainfall Onset Using Sky Images
cs.CV
Ground-based sky cameras (popularly known as Whole Sky Imagers) are increasingly used now-a-days for continuous monitoring of the atmosphere. These imagers have higher temporal and spatial resolutions compared to conventional satellite images. In this paper, we use ground-based sky cameras to detect the onset of rainfa...
computer science
39,622
Multispectral image denoising with optimized vector non-local mean filter
cs.CV
Nowadays, many applications rely on images of high quality to ensure good performance in conducting their tasks. However, noise goes against this objective as it is an unavoidable issue in most applications. Therefore, it is essential to develop techniques to attenuate the impact of noise, while maintaining the integri...
computer science
39,623
Automatic and Manual Segmentation of Hippocampus in Epileptic Patients MRI
cs.CV
The hippocampus is a seminal structure in the most common surgically-treated form of epilepsy. Accurate segmentation of the hippocampus aids in establishing asymmetry regarding size and signal characteristics in order to disclose the likely site of epileptogenicity. With sufficient refinement, it may ultimately aid in ...
computer science
39,624
A Novel Boundary Matching Algorithm for Video Temporal Error Concealment
cs.MM
With the fast growth of communication networks, the video data transmission from these networks is extremely vulnerable. Error concealment is a technique to estimate the damaged data by employing the correctly received data at the decoder. In this paper, an efficient boundary matching algorithm for estimating damaged m...
computer science
39,625
Image Clustering without Ground Truth
cs.HC
Cluster analysis has become one of the most exercised research areas over the past few decades in computer science. As a consequence, numerous clustering algorithms have already been developed to find appropriate partitions of a set of objects. Given multiple such clustering solutions, it is a challenging task to obtai...
computer science
39,626
Active User Authentication for Smartphones: A Challenge Data Set and Benchmark Results
cs.CV
In this paper, automated user verification techniques for smartphones are investigated. A unique non-commercial dataset, the University of Maryland Active Authentication Dataset 02 (UMDAA-02) for multi-modal user authentication research is introduced. This paper focuses on three sensors - front camera, touch sensor and...
computer science
39,627
The Event-Camera Dataset and Simulator: Event-based Data for Pose Estimation, Visual Odometry, and SLAM
cs.RO
New vision sensors, such as the Dynamic and Active-pixel Vision sensor (DAVIS), incorporate a conventional global-shutter camera and an event-based sensor in the same pixel array. These sensors have great potential for high-speed robotics and computer vision because they allow us to combine the benefits of conventional...
computer science
39,628
Detecting Breast Cancer using a Compressive Sensing Unmixing Algorithm
cs.CV
Traditional breast cancer imaging methods using microwave Nearfield Radar Imaging (NRI) seek to recover the complex permittivity of the tissues at each voxel in the imaging region. This approach is suboptimal, in that it does not directly consider the permittivity values that healthy and cancerous breast tissues typica...
computer science
39,629
A Scalable and Robust Framework for Intelligent Real-time Video Surveillance
cs.CV
In this paper, we present an intelligent, reliable and storage-efficient video surveillance system using Apache Storm and OpenCV. As a Storm topology, we have added multiple information extraction modules that only write important content to the disk. Our topology is extensible, capable of adding novel algorithms as pe...
computer science
39,630
Joint Large-Scale Motion Estimation and Image Reconstruction
cs.CV
This article describes the implementation of the joint motion estimation and image reconstruction framework presented by Burger, Dirks and Sch\"onlieb and extends this framework to large-scale motion between consecutive image frames. The variational framework uses displacements between consecutive frames based on the o...
computer science
39,631
ConfocalGN : a minimalistic confocal image simulator
cs.CV
SUMMARY : We developed a user-friendly software to generate synthetic confocal microscopy images from a ground truth specified as a 3D bitmap with pixels of arbitrary size. The software can analyze a real confocal stack to derivate noise parameters and will use them directly to generate new images with similar noise ch...
computer science
39,632
Structured illumination microscopy with unknown patterns and a statistical prior
cs.CV
Structured illumination microscopy (SIM) improves resolution by down-modulating high-frequency information of an object to fit within the passband of the optical system. Generally, the reconstruction process requires prior knowledge of the illumination patterns, which implies a well-calibrated and aberration-free syste...
computer science
39,633
Recent Advances in Transient Imaging: A Computer Graphics and Vision Perspective
cs.CV
Transient imaging has recently made a huge impact in the computer graphics and computer vision fields. By capturing, reconstructing, or simulating light transport at extreme temporal resolutions, researchers have proposed novel techniques to show movies of light in motion, see around corners, detect objects in highly-s...
computer science
39,634
Bayesian Modeling of Motion Perception using Dynamical Stochastic Textures
cs.CV
A common practice to account for psychophysical biases in vision is to frame them as consequences of a dynamic process relying on optimal inference with respect to a generative model. The present study details the complete formulation of such a generative model intended to probe visual motion perception. It is first de...
computer science
39,635
Hamiltonian operator for spectral shape analysis
cs.GR
Many shape analysis methods treat the geometry of an object as a metric space that can be captured by the Laplace-Beltrami operator. In this paper, we propose to adapt the classical Hamiltonian operator from quantum mechanics to the field of shape analysis. To this end we study the addition of a potential function to t...
computer science
39,636
Real-Time Visual Place Recognition for Personal Localization on a Mobile Device
cs.RO
The paper presents an approach to indoor personal localization on a mobile device based on visual place recognition. We implemented on a smartphone two state-of-the-art algorithms that are representative to two different approaches to visual place recognition: FAB-MAP that recognizes places using individual images, and...
computer science
39,637
Crowdsourcing in Computer Vision
cs.CV
Computer vision systems require large amounts of manually annotated data to properly learn challenging visual concepts. Crowdsourcing platforms offer an inexpensive method to capture human knowledge and understanding, for a vast number of visual perception tasks. In this survey, we describe the types of annotations com...
computer science
39,638
Parse Geometry from a Line: Monocular Depth Estimation with Partial Laser Observation
cs.CV
Many standard robotic platforms are equipped with at least a fixed 2D laser range finder and a monocular camera. Although those platforms do not have sensors for 3D depth sensing capability, knowledge of depth is an essential part in many robotics activities. Therefore, recently, there is an increasing interest in dept...
computer science
39,639
The Little Engine that Could: Regularization by Denoising (RED)
cs.CV
Removal of noise from an image is an extensively studied problem in image processing. Indeed, the recent advent of sophisticated and highly effective denoising algorithms lead some to believe that existing methods are touching the ceiling in terms of noise removal performance. Can we leverage this impressive achievemen...
computer science
39,640
Oriented bounding boxes using multiresolution contours for fast interference detection of arbitrary geometry objects
cs.GR
Interference detection of arbitrary geometric objects is not a trivial task due to the heavy computational load imposed by implementation issues. The hierarchically structured bounding boxes help us to quickly isolate the contour of segments in interference. In this paper, a new approach is introduced to treat the inte...
computer science
39,641
HoneyFaces: Increasing the Security and Privacy of Authentication Using Synthetic Facial Images
cs.CR
One of the main challenges faced by Biometric-based authentication systems is the need to offer secure authentication while maintaining the privacy of the biometric data. Previous solutions, such as Secure Sketch and Fuzzy Extractors, rely on assumptions that cannot be guaranteed in practice, and often affect the authe...
computer science
39,642
Joint Graph Decomposition and Node Labeling: Problem, Algorithms, Applications
cs.CV
We state a combinatorial optimization problem whose feasible solutions define both a decomposition and a node labeling of a given graph. This problem offers a common mathematical abstraction of seemingly unrelated computer vision tasks, including instance-separating semantic segmentation, articulated human body pose es...
computer science
39,643
Motion Estimated-Compensated Reconstruction with Preserved-Features in Free-Breathing Cardiac MRI
cs.CV
To develop an efficient motion-compensated reconstruction technique for free-breathing cardiac magnetic resonance imaging (MRI) that allows high-quality images to be reconstructed from multiple undersampled single-shot acquisitions. The proposed method is a joint image reconstruction and motion correction method consis...
computer science
39,644
A Combinatorial Solution to Non-Rigid 3D Shape-to-Image Matching
cs.CV
We propose a combinatorial solution for the problem of non-rigidly matching a 3D shape to 3D image data. To this end, we model the shape as a triangular mesh and allow each triangle of this mesh to be rigidly transformed to achieve a suitable matching to the image. By penalising the distance and the relative rotation b...
computer science
39,645
Image Credibility Analysis with Effective Domain Transferred Deep Networks
cs.MM
Numerous fake images spread on social media today and can severely jeopardize the credibility of online content to public. In this paper, we employ deep networks to learn distinct fake image related features. In contrast to authentic images, fake images tend to be eye-catching and visually striking. Compared with tradi...
computer science
39,646
Probabilistic Fluorescence-Based Synapse Detection
cs.CV
Brain function results from communication between neurons connected by complex synaptic networks. Synapses are themselves highly complex and diverse signaling machines, containing protein products of hundreds of different genes, some in hundreds of copies, arranged in precise lattice at each individual synapse. Synapse...
computer science
39,647
Reweighted Low-Rank Tensor Decomposition based on t-SVD and its Applications in Video Denoising
cs.CV
The t-SVD based Tensor Robust Principal Component Analysis (TRPCA) decomposes low rank multi-linear signal corrupted by gross errors into low multi-rank and sparse component by simultaneously minimizing tensor nuclear norm and l 1 norm. But if the multi-rank of the signal is considerably large and/or large amount of no...
computer science
39,648
ModelHub: Towards Unified Data and Lifecycle Management for Deep Learning
cs.DB
Deep learning has improved state-of-the-art results in many important fields, and has been the subject of much research in recent years, leading to the development of several systems for facilitating deep learning. Current systems, however, mainly focus on model building and training phases, while the issues of data ma...
computer science
39,649
RhoanaNet Pipeline: Dense Automatic Neural Annotation
cs.CV
Reconstructing a synaptic wiring diagram, or connectome, from electron microscopy (EM) images of brain tissue currently requires many hours of manual annotation or proofreading (Kasthuri and Lichtman, 2010; Lichtman and Sanes, 2008; Seung, 2009). The desire to reconstruct ever larger and more complex networks has pushe...
computer science
39,650
Exploiting Web Images for Dataset Construction: A Domain Robust Approach
cs.CV
Labelled image datasets have played a critical role in high-level image understanding. However, the process of manual labelling is both time-consuming and labor intensive. To reduce the cost of manual labelling, there has been increased research interest in automatically constructing image datasets by exploiting web im...
computer science
39,651
Distributable Consistent Multi-Graph Matching
cs.DS
In this paper we propose an optimization-based framework to multiple graph matching. The framework takes as input maps computed between pairs of graphs, and outputs maps that 1) are consistent among all pairs of graphs, and 2) preserve edge connectivity between pairs of graphs. The central idea of our approach is to di...
computer science
39,652
Object detection can be improved using human-derived contextual expectations
cs.CV
Each object in the world occurs in a specific context: cars are seen on highways but not in forests. Contextual information is generally thought to facilitate computation by constraining locations to search. But can knowing context yield tangible benefits in object detection? For it to do so, scene context needs to be ...
computer science
39,653
Single-View and Multi-View Depth Fusion
cs.CV
Dense and accurate 3D mapping from a monocular sequence is a key technology for several applications and still an open research area. This paper leverages recent results on single-view CNN-based depth estimation and fuses them with multi-view depth estimation. Both approaches present complementary strengths. Multi-view...
computer science
39,654
3D Image Reconstruction from X-Ray Measurements with Overlap
cs.CV
3D image reconstruction from a set of X-ray projections is an important image reconstruction problem, with applications in medical imaging, industrial inspection and airport security. The innovation of X-ray emitter arrays allows for a novel type of X-ray scanners with multiple simultaneously emitting sources. However,...
computer science
39,655
Multiframe Motion Coupling for Video Super Resolution
cs.CV
The idea of video super resolution is to use different view points of a single scene to enhance the overall resolution and quality. Classical energy minimization approaches first establish a correspondence of the current frame to all its neighbors in some radius and then use this temporal information for enhancement. I...
computer science
39,656
Robotic Grasp Detection using Deep Convolutional Neural Networks
cs.RO
Deep learning has significantly advanced computer vision and natural language processing. While there have been some successes in robotics using deep learning, it has not been widely adopted. In this paper, we present a novel robotic grasp detection system that predicts the best grasping pose of a parallel-plate roboti...
computer science
39,657
3D Fully Convolutional Network for Vehicle Detection in Point Cloud
cs.CV
2D fully convolutional network has been recently successfully applied to object detection from images. In this paper, we extend the fully convolutional network based detection techniques to 3D and apply it to point cloud data. The proposed approach is verified on the task of vehicle detection from lidar point cloud for...
computer science
39,658
Learning Where to Attend Like a Human Driver
cs.CV
Despite the advent of autonomous cars, it's likely - at least in the near future - that human attention will still maintain a central role as a guarantee in terms of legal responsibility during the driving task. In this paper we study the dynamics of the driver's gaze and use it as a proxy to understand related attenti...
computer science
39,659
Two-Level Structural Sparsity Regularization for Identifying Lattices and Defects in Noisy Images
stat.AP
This paper presents a regularized regression model with a two-level structural sparsity penalty applied to locate individual atoms in a noisy scanning transmission electron microscopy image (STEM). In crystals, the locations of atoms is symmetric, condensed into a few lattice groups. Therefore, by identifying the under...
computer science
39,660
Long-Term Image Boundary Prediction
cs.CV
Boundary estimation in images and videos has been a very active topic of research, and organizing visual information into boundaries and segments is believed to be a corner stone of visual perception. While prior work has focused on estimating boundaries for observed frames, our work aims at predicting boundaries of fu...
computer science
39,661
A neuro-mathematical model for geometrical optical illusions
cs.CV
Geometrical optical illusions have been object of many studies due to the possibility they offer to understand the behaviour of low-level visual processing. They consist in situations in which the perceived geometrical properties of an object differ from those of the object in the visual stimulus. Starting from the geo...
computer science
39,662
It's Written All Over Your Face: Full-Face Appearance-Based Gaze Estimation
cs.CV
Eye gaze is an important non-verbal cue for human affect analysis. Recent gaze estimation work indicated that information from the full face region can benefit performance. Pushing this idea further, we propose an appearance-based method that, in contrast to a long-standing line of work in computer vision, only takes t...
computer science
39,663
Easy-setup eye movement recording system for human-computer interaction
cs.HC
Tracking the movement of human eyes is expected to yield natural and convenient applications based on human-computer interaction (HCI). To implement an effective eye-tracking system, eye movements must be recorded without placing any restriction on the user's behavior or user discomfort. This paper describes an eye mov...
computer science
39,664
Photographic home styles in Congress: a computer vision approach
cs.SI
While members of Congress now routinely communicate with constituents using images on a variety of internet platforms, little is known about how images are used as a means of strategic political communication. This is due primarily to computational limitations which have prevented large-scale, systematic analyses of im...
computer science
39,665
Challenges ahead Electron Microscopy for Structural Biology from the Image Processing point of view
cs.CV
Since the introduction of Direct Electron Detectors (DEDs), the resolution and range of macromolecules amenable to this technique has significantly widened, generating a broad interest that explains the well over a dozen reviews in top journal in the last two years. Similarly, the number of job offers to lead EM groups...
computer science
39,666
Deep-HiTS: Rotation Invariant Convolutional Neural Network for Transient Detection
cs.CV
We introduce Deep-HiTS, a rotation invariant convolutional neural network (CNN) model for classifying images of transients candidates into artifacts or real sources for the High cadence Transient Survey (HiTS). CNNs have the advantage of learning the features automatically from the data while achieving high performance...
computer science
39,667
Vid2speech: Speech Reconstruction from Silent Video
cs.CV
Speechreading is a notoriously difficult task for humans to perform. In this paper we present an end-to-end model based on a convolutional neural network (CNN) for generating an intelligible acoustic speech signal from silent video frames of a speaking person. The proposed CNN generates sound features for each frame ba...
computer science
39,668
Green-Blue Stripe Pattern for Range Sensing from a Single Image
cs.CV
In this paper, we present a novel method for rapid high-resolution range sensing using green-blue stripe pattern. We use green and blue for designing high-frequency stripe projection pattern. For accurate and reliable range recovery, we identify the stripe patterns by our color-stripe segmentation and unwrapping algori...
computer science
39,669
Light Field Super-Resolution Via Graph-Based Regularization
cs.CV
Light field cameras capture the 3D information in a scene with a single exposure. This special feature makes light field cameras very appealing for a variety of applications: from post-capture refocus, to depth estimation and image-based rendering. However, light field cameras suffer by design from strong limitations i...
computer science
39,670
Son of Zorn's Lemma: Targeted Style Transfer Using Instance-aware Semantic Segmentation
cs.CV
Style transfer is an important task in which the style of a source image is mapped onto that of a target image. The method is useful for synthesizing derivative works of a particular artist or specific painting. This work considers targeted style transfer, in which the style of a template image is used to alter only pa...
computer science
39,671
Modeling Retinal Ganglion Cell Population Activity with Restricted Boltzmann Machines
cs.CV
The retina is a complex nervous system which encodes visual stimuli before higher order processing occurs in the visual cortex. In this study we evaluated whether information about the stimuli received by the retina can be retrieved from the firing rate distribution of Retinal Ganglion Cells (RGCs), exploiting High-Den...
computer science
39,672
3D tracking of water hazards with polarized stereo cameras
cs.RO
Current self-driving car systems operate well in sunny weather but struggle in adverse conditions. One of the most commonly encountered adverse conditions involves water on the road caused by rain, sleet, melting snow or flooding. While some advances have been made in using conventional RGB camera and LIDAR technology ...
computer science
39,673
Hierarchical Salient Object Detection for Assisted Grasping
cs.CV
Visual scene decomposition into semantic entities is one of the major challenges when creating a reliable object grasping system. Recently, we introduced a bottom-up hierarchical clustering approach which is able to segment objects and parts in a scene. In this paper, we introduce a transform from such a segmentation i...
computer science
39,674
Human perception in computer vision
cs.CV
Computer vision has made remarkable progress in recent years. Deep neural network (DNN) models optimized to identify objects in images exhibit unprecedented task-trained accuracy and, remarkably, some generalization ability: new visual problems can now be solved more easily based on previous learning. Biological vision...
computer science
39,675
Action Recognition: From Static Datasets to Moving Robots
cs.RO
Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these models are to be employed by autonomous robots in real world environments, they ...
computer science
39,676
Analysis of the noise in back-projection light field acquisition and its optimization
cs.CV
Light field reconstruction from images captured by focal plane sweeping can achieve high lateral resolution comparable to the modern camera sensor. This is impossible for the conventional micro-lenslet based light field capture systems. However, the severe defocus noise and the low depth resolution limit its applicatio...
computer science
39,677
Deep Learning Features at Scale for Visual Place Recognition
cs.CV
The success of deep learning techniques in the computer vision domain has triggered a range of initial investigations into their utility for visual place recognition, all using generic features from networks that were trained for other types of recognition tasks. In this paper, we train, at large scale, two CNN archite...
computer science
39,678
Profiling of OCR'ed Historical Texts Revisited
cs.CV
In the absence of ground truth it is not possible to automatically determine the exact spectrum and occurrences of OCR errors in an OCR'ed text. Yet, for interactive postcorrection of OCR'ed historical printings it is extremely useful to have a statistical profile available that provides an estimate of error classes wi...
computer science
39,679
Robust Intrinsic and Extrinsic Calibration of RGB-D Cameras
cs.CV
Color-depth cameras (RGB-D cameras) have become the primary sensors in most robotics systems, from service robotics to industrial robotics applications. Typical consumer-grade RGB-D cameras are provided with a coarse intrinsic and extrinsic calibration that generally does not meet the accuracy requirements needed by ma...
computer science
39,680
DeadNet: Identifying Phototoxicity from Label-free Microscopy Images of Cells using Deep ConvNets
cs.CV
Exposure to intense illumination light is an unavoidable consequence of fluorescence microscopy, and poses a risk to the health of the sample in every live-cell fluorescence microscopy experiment. Furthermore, the possible side-effects of phototoxicity on the scientific conclusions that are drawn from an imaging experi...
computer science
39,681
Normative theory of visual receptive fields
cs.CV
This article gives an overview of a normative computational theory of visual receptive fields, by which idealized functional models of early spatial, spatio-chromatic and spatio-temporal receptive fields can be derived in an axiomatic way based on structural properties of the environment in combination with assumptions...
computer science
39,682
Sparse models for Computer Vision
cs.CV
The representation of images in the brain is known to be sparse. That is, as neural activity is recorded in a visual area ---for instance the primary visual cortex of primates--- only a few neurons are active at a given time with respect to the whole population. It is believed that such a property reflects the efficien...
computer science
39,683
Understanding the Historic Emergence of Diversity in Painting via Color Contrast
cs.CV
Painting is an art form that has long functioned as major channel for communication and creative expression. Understanding how painting has evolved over the centuries is therefore an essential component for understanding cultural history, intricately linked with developments in aesthetics, science, and technology. The ...
computer science
39,684
Photographic dataset: playing cards
cs.CV
This is a photographic dataset collected for testing image processing algorithms. The idea is to have images that can exploit the properties of total variation, therefore a set of playing cards was distributed on the scene. The dataset is made available at www.fips.fi/photographic_dataset2.php
computer science
39,685
Structural Connectome Validation Using Pairwise Classification
cs.CV
In this work, we study the extent to which structural connectomes and topological derivative measures are unique to individual changes within human brains. To do so, we classify structural connectome pairs from two large longitudinal datasets as either belonging to the same individual or not. Our data is comprised of 2...
computer science
39,686
Double-sided probing by map of Asplund's distances using Logarithmic Image Processing in the framework of Mathematical Morphology
cs.CV
We establish the link between Mathematical Morphology and the map of Asplund's distances between a probe and a grey scale function, using the Logarithmic Image Processing scalar multiplication. We demonstrate that the map is the logarithm of the ratio between a dilation and an erosion of the function by a structuring f...
computer science
39,687
Deconvolution and Restoration of Optical Endomicroscopy Images
cs.CV
Optical endomicroscopy (OEM) is an emerging technology platform with preclinical and clinical imaging utility. Pulmonary OEM via multicore fibres has the potential to provide in vivo in situ molecular signatures of disease such as infection and inflammation. However, enhancing the quality of data acquired by this techn...
computer science
39,688
SafeDrive: A Robust Lane Tracking System for Autonomous and Assisted Driving Under Limited Visibility
cs.RO
We present an approach towards robust lane tracking for assisted and autonomous driving, particularly under poor visibility. Autonomous detection of lane markers improves road safety, and purely visual tracking is desirable for widespread vehicle compatibility and reducing sensor intrusion, cost, and energy consumption...
computer science
39,689
Scalable Nearest Neighbor Search based on kNN Graph
cs.CV
Nearest neighbor search is known as a challenging issue that has been studied for several decades. Recently, this issue becomes more and more imminent in viewing that the big data problem arises from various fields. In this paper, a scalable solution based on hill-climbing strategy with the support of k-nearest neighbo...
computer science
39,690
Peduncle Detection of Sweet Pepper for Autonomous Crop Harvesting - Combined Colour and 3D Information
cs.RO
This paper presents a 3D visual detection method for the challenging task of detecting peduncles of sweet peppers (Capsicum annuum) in the field. Cutting the peduncle cleanly is one of the most difficult stages of the harvesting process, where the peduncle is the part of the crop that attaches it to the main stem of th...
computer science
39,691
ImageNet MPEG-7 Visual Descriptors - Technical Report
cs.CV
ImageNet is a large scale and publicly available image database. It currently offers more than 14 millions of images, organised according to the WordNet hierarchy. One of the main objective of the creators is to provide to the research community a relevant database for visual recognition applications such as object rec...
computer science
39,692
Joint 2D-3D-Semantic Data for Indoor Scene Understanding
cs.CV
We present a dataset of large-scale indoor spaces that provides a variety of mutually registered modalities from 2D, 2.5D and 3D domains, with instance-level semantic and geometric annotations. The dataset covers over 6,000m2 and contains over 70,000 RGB images, along with the corresponding depths, surface normals, sem...
computer science
39,693
Contextually Customized Video Summaries via Natural Language
cs.CV
The best summary of a long video differs among different people due to its highly subjective nature. Even for the same person, the best summary may change with time or mood. In this paper, we introduce the task of generating customized video summaries through simple text. First, we train a deep architecture to effectiv...
computer science
39,694
Development of JavaScript-based deep learning platform and application to distributed training
cs.CV
Deep learning is increasingly attracting attention for processing big data. Existing frameworks for deep learning must be set up to specialized computer systems. Gaining sufficient computing resources therefore entails high costs of deployment and maintenance. In this work, we implement a matrix library and deep learni...
computer science
39,695
Comparison of machine learning methods for classifying mediastinal lymph node metastasis of non-small cell lung cancer from 18F-FDG PET/CT images
cs.CV
The present study shows that the performance of CNN is not significantly different from the best classical methods and human doctors for classifying mediastinal lymph node metastasis of NSCLC from PET/CT images. Because CNN does not need tumor segmentation or feature calculation, it is more convenient and more objectiv...
computer science
39,696
Manifold Based Low-rank Regularization for Image Restoration and Semi-supervised Learning
cs.CV
Low-rank structures play important role in recent advances of many problems in image science and data science. As a natural extension of low-rank structures for data with nonlinear structures, the concept of the low-dimensional manifold structure has been considered in many data processing problems. Inspired by this co...
computer science
39,697
Incorporation of prior knowledge of the signal behavior into the reconstruction to accelerate the acquisition of MR diffusion data
cs.CV
Diffusion MRI measurements using hyperpolarized gases are generally acquired during patient breath hold, which yields a compromise between achievable image resolution, lung coverage and number of b-values. In this work, we propose a novel method that accelerates the acquisition of MR diffusion data by undersampling in ...
computer science
39,698
Distributed Mapping with Privacy and Communication Constraints: Lightweight Algorithms and Object-based Models
cs.RO
We consider the following problem: a team of robots is deployed in an unknown environment and it has to collaboratively build a map of the area without a reliable infrastructure for communication. The backbone for modern mapping techniques is pose graph optimization, which estimates the trajectory of the robots, from w...
computer science
39,699
BubbleView: an interface for crowdsourcing image importance maps and tracking visual attention
cs.HC
In this paper, we present BubbleView, an alternative methodology for eye tracking using discrete mouse clicks to measure which information people consciously choose to examine. BubbleView is a mouse-contingent, moving-window interface in which participants are presented with a series of blurred images and click to reve...
computer science
39,700
An Analysis of Parallelized Motion Masking Using Dual-Mode Single Gaussian Models
cs.CV
Motion detection in video is important for a number of applications and fields. In video surveillance, motion detection is an essential accompaniment to activity recognition for early warning systems. Robotics also has much to gain from motion detection and segmentation, particularly in high speed motion tracking for t...
computer science
39,701
3D Cell Nuclei Segmentation with Balanced Graph Partitioning
cs.CV
Cell nuclei segmentation is one of the most important tasks in the analysis of biomedical images. With ever-growing sizes and amounts of three-dimensional images to be processed, there is a need for better and faster segmentation methods. Graph-based image segmentation has seen a rise in popularity in recent years, but...
computer science
39,702
Brain Inspired Cognitive Model with Attention for Self-Driving Cars
cs.CV
Perception-driven approach and end-to-end system are two major vision-based frameworks for self-driving cars. However, it is difficult to introduce attention and historical information of autonomous driving process, which are the essential factors for achieving human-like driving into these two methods. In this paper, ...
computer science
39,703
From Photo Streams to Evolving Situations
cs.MM
Photos are becoming spontaneous, objective, and universal sources of information. This paper develops evolving situation recognition using photo streams coming from disparate sources combined with the advances of deep learning. Using visual concepts in photos together with space and time information, we formulate the s...
computer science
39,704
Memory Efficient Max Flow for Multi-label Submodular MRFs
cs.DS
Multi-label submodular Markov Random Fields (MRFs) have been shown to be solvable using max-flow based on an encoding of the labels proposed by Ishikawa, in which each variable $X_i$ is represented by $\ell$ nodes (where $\ell$ is the number of labels) arranged in a column. However, this method in general requires $2\,...
computer science
39,705
Forest understory trees can be segmented accurately within sufficiently dense airborne laser scanning point clouds
cs.CV
Airborne laser scanning (LiDAR) point clouds over large forested areas can be processed to segment individual trees and subsequently extract tree-level information. Existing segmentation procedures typically detect more than 90% of overstory trees, yet they barely detect 60% of understory trees because of the occlusion...
computer science
39,706
Efficient Dense Labeling of Human Activity Sequences from Wearables using Fully Convolutional Networks
cs.CV
Recognizing human activities in a sequence is a challenging area of research in ubiquitous computing. Most approaches use a fixed size sliding window over consecutive samples to extract features---either handcrafted or learned features---and predict a single label for all samples in the window. Two key problems emanate...
computer science
39,707
Projection based advanced motion model for cubic mapping for 360-degree video
cs.MM
This paper proposes a novel advanced motion model to handle the irregular motion for the cubic map projection of 360-degree video. Since the irregular motion is mainly caused by the projection from the sphere to the cube map, we first try to project the pixels in both the current picture and reference picture from unfo...
computer science
39,708
Differential Geometric Retrieval of Deep Features
cs.IR
Comparing images to recommend items from an image-inventory is a subject of continued interest. Added with the scalability of deep-learning architectures the once `manual' job of hand-crafting features have been largely alleviated, and images can be compared according to features generated from a deep convolutional neu...
computer science
39,709
A Discriminative Event Based Model for Alzheimer's Disease Progression Modeling
cs.CV
The event-based model (EBM) for data-driven disease progression modeling estimates the sequence in which biomarkers for a disease become abnormal. This helps in understanding the dynamics of disease progression and facilitates early diagnosis by staging patients on a disease progression timeline. Existing EBM methods a...
computer science