ChaHu Dataset

I. Dataset Introduction

This dataset contains images of various types of Zisha teapots and their related information, aiming to provide support for academic research in the field of Zisha teapots. The sample images cover multiple styles and shapes such as geometric shapes, natural shapes, flower-shaped teapots, and beam-handle teapots. The dataset supports multiple visual tasks, including image classification, image segmentation, and text-to-image generation.

The data of this dataset comes from the following two channels:

• Jiangsu Yixing Zisha Pottery Factory: Provided high-definition images and detailed information of some Zisha teapots, including teapot shape, size, author, production time, etc.
• Web collection: A large number of Zisha teapot images and related information were collected from the Internet, which were included in the dataset after screening and sorting.

Permission Scope

This dataset is only for academic research purposes and shall not be used for commercial purposes. When using this dataset for research, please abide by relevant laws, regulations and ethical norms, and cite the relevant literature of this dataset.

Please feel free to contact us. Email: yanghailong at stu.jiangnan.edu.cn

II. Introduction to Types of Zisha Teapots

Zisha teapots are classified from four perspectives: geometric shape, natural shape, flower shape, and beam handle. The core is to form a systematic and practical classification system based on the essential shape, craft logic, functional attributes and academic research needs of Zisha teapots. These four classifications can fully cover Zisha teapots in terms of shape, structure and style, with no overlapping categories or missing key types. They not only conform to the traditional cognition of the industry but also provide clear structural support for modern academic research and technical applications.

1. Geometric Shape

General Introduction

Geo metric Zisha teapots are the most classic and basic category of Zisha teapots, with mathematical geometric forms as the core of design. They abandon redundant decorations, focusing on proportional coordination and symmetrical beauty. Their lines are smooth and regular, and their outlines are concise and lively. They not only reflect the pursuit of order beauty in the traditional Chinese concept of "harmony between man and nature" but also conform to the minimalist aesthetic concept of modern design. They have both practical value and artistic appreciation, and are one of the types with the longest inheritance and the widest application in the development history of Zisha teapots.

Classification Principles

It is divided based on the geometric form corresponding to the core outline of the teapot body, emphasizing the regularity and symmetry of the shape. It does not rely on natural elements or special functional structures, and only constructs the teapot shape through the combination and deformation of basic geometric elements such as circles, squares, and cylinders. The core evaluation criteria are proportional accuracy, line smoothness, and shape regularity.

Complete Categories

No.	English	Chinese
1	Fanggugu Pot	仿鼓壶
2	Shipiao Pot	石瓢壶
3	Fanggu Pot	仿古壶
4	Handuo Pot	汉铎壶
5	Fangchu Pot	方础壶
6	Bafang Pot	八方壶
7	Longdan Pot	龙蛋壶
8	Fangqi	方器
9	Shuiping Pot	水平壶
10	Wadang Pot	瓦当壶
11	Zhongshi Pot	钟式壶
12	Yubian Pot	玉扁壶
13	Shentang Pot	参汤壶
14	Jinglan Pot	井栏壶
15	Hanbian Pot	汉扁壶
16	Zhitong Pot	直筒壶
17	Danbao Pot	蛋包壶
18	Chuanlu Pot	传炉壶
19	Fangzhong Pot	方钟壶
20	Hanfang Pot	汉方壶
21	Sifang Pot	四方壶
22	Liufang Pot	六方壶
23	Duoqiu Pot	掇球壶
24	Denglong Pot	灯笼壶
25	Yangtong Pot	洋桶壶
26	Hanjunshi Pot	汉君式壶
27	Gongdeng Pot	宫灯壶
28	Tangpo Pot	汤婆壶
29	Paozun Pot	匏尊壶

2. Natural Shape

General Introduction

Natural-shaped Zisha teapots take animals, plants, and natural utensils in nature as bionic prototypes, skillfully integrating natural forms with practical functions. These teapot shapes are vivid and lifelike, full of life atmosphere and creative inspiration. They not only restore the texture and charm of all things in nature but also endow them with humanistic warmth through artistic refinement, reflecting the aesthetic pursuit of "learning from nature" in traditional Chinese culture. They are an important category of Zisha teapots with both interest and artistry.

Classification Principles

It is divided based on the natural prototype being imitated, emphasizing the degree of restoration of the form and texture of natural objects. It requires that the teapot shape not only retains the typical characteristics of the prototype but also meets the practical functions of Zisha teapots such as water storage, tea making, and holding. It avoids purely pursuing bionics while ignoring practicality. The core evaluation criteria are bionic fidelity, functional adaptability, and form coordination.

Complete Categories

No.	English	Chinese
1	Nangua Pot	南瓜壶
2	Zhujie Pot	竹节壶
3	Lianzi Pot	莲子壶
4	Gualeng Pot	瓜棱壶
5	Zhuduan Pot	竹段壶
6	Juban Pot	菊瓣壶
7	Hulu Pot	葫芦壶
8	Ganlan Pot	橄榄壶

3. Flower Shape

General Introduction

Flower-shaped teapots are a characteristic category of Zisha teapots, with flowers as the core theme, integrating various complex techniques such as relief, openwork, and pasting. Their shapes are rich and diverse, with flexible color matching, and the flower patterns are lifelike. They not only show the delicate posture and natural beauty of flowers but also endow them with profound cultural implications through technological innovation. They are the type of Zisha teapots that combine decoration and art most closely, and are often used for display, collection, and cultural exchange.

Classification Principles

It is divided based on the flower or bionic natural utensil theme represented by the main body of the teapot, emphasizing the distinctiveness of the theme and the complexity of the craftsmanship. It requires that the decorative techniques are consistent with the overall style of the teapot shape, and the flower or natural utensil elements run through all parts such as the teapot body, lid, and knob. The core evaluation criteria are theme expression, craftsmanship precision, and artistic appeal.

Complete Categories

No.	English	Chinese
1	Meizhuang Pot	梅桩壶
2	Gongchun Pot	供春壶
3	Foshou Pot	佛手壶
4	Kuifang Pot	葵仿壶
5	Yunlong Pot	云龙壶
6	Shuzhuang Pot	树桩壶
7	Baochun Pot	报春壶
8	Baiguo Pot	百果壶
9	Shibian Pot	柿扁壶
10	Yuhualong Pot	鱼化龙壶
11	Shiqiu Pot	狮球壶
12	Xuetao Pot	雪桃壶
13	Yinbao Pot	印包壶
14	Mitao Pot	蜜桃壶
15	Chifu Pot	螭蝮壶

4. Beam Handle

General Introduction

Beam-handle teapots are characterized by the "beam handle" as the core structure. The beam handle spans above the teapot body, replacing the traditional teapot handle, making it convenient for users to lift. Its shape combines practicality and decoration. The beam handle design is either simple and elegant or exquisite and gorgeous. It not only ensures the comfort and stability of holding but also can improve the overall beauty through the material, radian, and pattern design of the beam handle. It is an important category of Zisha teapots suitable for scenes such as multi-person tea drinking and home display.

Classification Principles

It is divided based on the structural design and shape style of the beam handle, emphasizing the connection stability between the beam handle and the teapot body, the comfort of holding, and taking into account the coordination of the overall shape. It requires that the beam handle not only meets the load-bearing requirements but also is consistent with the theme style of the teapot body. The core evaluation criteria are structural stability, holding comfort, and shape coordination.

Complete Categories

Sanchayi (Three-pronged) Beam Handle, Danshi (Single-style) Beam Handle, Ruan (Soft) Beam Handle.

No.	English	Chinese
1	Sancha Beam Handle Pot	三叉提梁壶
2	Danshi Beam Handle Pot	单式提梁壶
3	Ruan Beam Handle Pot	软提梁壶

5. Summary

In summary, these four classifications can systematically and effectively depict Zisha teapots in terms of shape, structure, and style. They not only help to understand the aesthetic and functional differences between different teapot shapes but also provide a clear structural basis for subsequent research tasks such as automatic classification, shape analysis, and intelligent generation.

III. Data Structure

Each sample consists of the following fields:

Field	Description
id	Image ID
image path	Original image path
mask path	Path of ground-truth mask for image segmentation tasks
caption	Image title, text description of the Zisha teapot in the picture, used for text-to-image tasks
time	The age of the Zisha teapot, including 8 categories: Ming Dynasty (1368 – 1644), Late Ming Dynasty (1600 – 1644), Early Qing Dynasty (1644 – 1722), Mid-Qing Dynasty (1722 – 1820), Late Qing Dynasty (1820 – 1912), Qing Dynasty (1644 – 1912), Republic of China (1912 – 1949), and Contemporary (1949-Present). This field is marked as "Else" when there is no clear age label.
geometric shape type	Geometric shape classification of Zisha teapots, including 29 categories: Fanggugu Pot, Shipiao Pot, Fanggu Pot, Handuo Pot, Fangchu Pot, Bafang Pot, Longdan Pot, Fangqi Pot, Shuiping Pot, Wadang Pot, Zhongshi Pot, Yupian Pot, Shentang Pot, Jinglan Pot, Hanbian Pot, Zhitong Pot, Danbao Pot, Chuanlu Pot, Fangzhong Pot, Hanfang Pot, Sifang Pot, Liufang Pot, Duoqiu Pot, Denglong Pot, Yangtong Pot, Hanjunshi Pot, Gongdeng Pot, Tangpo Pot, Paozun Pot. Other classifications are marked as "Else".
natural shape type	Natural shape classification of Zisha teapots, including 8 categories: Nangua Pot, Zhujie Pot, Lianzi Pot, Gualeng Pot, Zhuduan Pot, Juban Pot, Hulu Pot, Ganlan Pot. Other classifications are marked as "Else".
flower type	Flower shape classification of Zisha teapots, including 15 categories: Meizhuang Pot, Gongchun Pot, Foshou Pot, Kuifang Pot, Yunlong Pot, Shuzhuang Pot, Baochun Pot, Baiguo Pot, Shibian Pot, Yuhualong Pot, Shiqiu Pot, Xuetao Pot, Yinbao Pot, Mitao Pot, Chifu Pot. Teapots without flower shape or with other unknown flower shapes are marked as "Else".
handle type	Beam handle classification of Zisha teapots, including 3 categories: Sanchayi Beam Handle Pot, Danshi Beam Handle Pot, Ruan Beam Handle Pot. Non-beam handle teapots or other unknown beam handle classifications are marked as "Else".
innovative	Is it a Zisha teapot with an innovative shape? Yes or No

Sample JSON format is as follows:

{
    'id': 'JN000001',
    'image path': 'https://huggingface.co/datasets/AGI-FBHC/ChaHu/resolve/main/image/JN000001.jpg', 
    'mask path': 'https://huggingface.co/datasets/AGI-FBHC/ChaHu/resolve/main/image/JN000001.mask.jpg', 
     'caption': 'Round Shape: Heaven is round, earth is square, symbolizing harmony and unity', 
    'time':'Late Qing Dynasty',
    'geometric shape type': 'Else', 
    'natural shape type': 'Nangua Pot', 
    'flower type': 'Else', 
    'handle type': 'Else', 
    'innovative': 'No'
}

VI. Dataset Load

from datasets import load_dataset
dataset = load_dataset("AGI-FBHC/ChaHu",name="english", split="train")
print(dataset)
print(dataset[0])
print(len(dataset))

BibTeX

@online{yangchahu2025,
  title = {ChaHu: A Multi-Task Benchmark Dataset for Yixing Teapots},
  shorttitle = {ChaHu},
  author = {Yang, Hailong and Yue, Yuxiang and Liu, Shenghui and Deng, Zhaohong},
  date = {2025},
  urldate = {2025-12-02},
  langid = {english},
  pubstate = {prepublished},
  version = {1},
  keywords = {Artificial Intelligence (cs.AI),Computer Vision and Pattern Recognition (cs.CV),FOS: Computer and information sciences}
}