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// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de)
#ifndef COLMAP_SRC_FEATURE_EXTRACTION_H_
#define COLMAP_SRC_FEATURE_EXTRACTION_H_
#include "base/database.h"
#include "base/image_reader.h"
#include "feature/sift.h"
#include "util/opengl_utils.h"
#include "util/threading.h"
namespace colmap {
namespace internal {
struct ImageData;
} // namespace internal
// Feature extraction class to extract features for all images in a directory.
class SiftFeatureExtractor : public Thread {
public:
SiftFeatureExtractor(const ImageReaderOptions& reader_options,
const SiftExtractionOptions& sift_options);
private:
void Run();
const ImageReaderOptions reader_options_;
const SiftExtractionOptions sift_options_;
Database database_;
ImageReader image_reader_;
std::vector<std::unique_ptr<Thread>> resizers_;
std::vector<std::unique_ptr<Thread>> extractors_;
std::unique_ptr<Thread> writer_;
std::unique_ptr<JobQueue<internal::ImageData>> resizer_queue_;
std::unique_ptr<JobQueue<internal::ImageData>> extractor_queue_;
std::unique_ptr<JobQueue<internal::ImageData>> writer_queue_;
};
// Import features from text files. Each image must have a corresponding text
// file with the same name and an additional ".txt" suffix.
class FeatureImporter : public Thread {
public:
FeatureImporter(const ImageReaderOptions& reader_options,
const std::string& import_path);
private:
void Run();
const ImageReaderOptions reader_options_;
const std::string import_path_;
};
////////////////////////////////////////////////////////////////////////////////
// Implementation
////////////////////////////////////////////////////////////////////////////////
namespace internal {
struct ImageData {
ImageReader::Status status = ImageReader::Status::FAILURE;
Camera camera;
Image image;
Bitmap bitmap;
Bitmap mask;
FeatureKeypoints keypoints;
FeatureDescriptors descriptors;
};
class ImageResizerThread : public Thread {
public:
ImageResizerThread(const int max_image_size, JobQueue<ImageData>* input_queue,
JobQueue<ImageData>* output_queue);
private:
void Run();
const int max_image_size_;
JobQueue<ImageData>* input_queue_;
JobQueue<ImageData>* output_queue_;
};
class SiftFeatureExtractorThread : public Thread {
public:
SiftFeatureExtractorThread(const SiftExtractionOptions& sift_options,
const std::shared_ptr<Bitmap>& camera_mask,
JobQueue<ImageData>* input_queue,
JobQueue<ImageData>* output_queue);
private:
void Run();
const SiftExtractionOptions sift_options_;
std::shared_ptr<Bitmap> camera_mask_;
std::unique_ptr<OpenGLContextManager> opengl_context_;
JobQueue<ImageData>* input_queue_;
JobQueue<ImageData>* output_queue_;
};
class FeatureWriterThread : public Thread {
public:
FeatureWriterThread(const size_t num_images, Database* database,
JobQueue<ImageData>* input_queue);
private:
void Run();
const size_t num_images_;
Database* database_;
JobQueue<ImageData>* input_queue_;
};
} // namespace internal
} // namespace colmap
#endif // COLMAP_SRC_FEATURE_EXTRACTION_H_
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