README.md

---
configs:
- config_name: default
  data_files:
  - split: CN
    path: data/CN-*
  - split: EN
    path: data/EN-*
dataset_info:
  features:
  - name: id
    dtype: string
  - name: image
    dtype: image
  - name: mask
    dtype: image
  - name: caption
    dtype: string
  - name: time
    dtype: string
  - name: geometric shape type
    dtype: string
  - name: natural shape type
    dtype: string
  - name: flower type
    dtype: string
  - name: handle type
    dtype: string
  - name: innovative
    dtype: string
  - name: viewpoint
    dtype: string
  splits:
  - name: CN
    num_bytes: 1142088658
    num_examples: 9753
  - name: EN
    num_bytes: 1142076710
    num_examples: 9753
  download_size: 1257164451
  dataset_size: 2284165368
---

# 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 | Preview |
| :--- | :--- | :--- | :--- |
| 1 | Shipiao Pot | 石瓢壶 | <img src="hf_icons/石瓢壶.png" width="100" /> |
| 2 | Fanggu Pot | 仿古壶 | <img src="hf_icons/仿古壶.png" width="100" /> |
| 3 | Handuo Pot | 汉铎壶 | <img src="hf_icons/汉铎壶.png" width="100" /> |
| 4 | Bafang Pot | 八方壶 | <img src="hf_icons/八方壶.png" width="100" /> |
| 5 | Longdan Pot | 龙蛋壶 | <img src="hf_icons/龙蛋壶.png" width="100" /> |
| 6 | Shuiping Pot | 水平壶 | <img src="hf_icons/水平壶.png" width="100" /> |
| 7 | Wadang Pot | 瓦当壶 | <img src="hf_icons/瓦当壶.png" width="100" /> |
| 8 | Zhongshi Pot | 钟式壶 | <img src="hf_icons/钟式壶.png" width="100" /> |
| 9 | Yubian Pot | 玉扁壶 | <img src="hf_icons/玉扁壶.png" width="100" /> |
| 10 | Shentang Pot | 参汤壶 | <img src="hf_icons/参汤壶.png" width="100" /> |
| 11 | Jinglan Pot | 井栏壶 | <img src="hf_icons/井栏壶.png" width="100" /> |
| 12 | Hanbian Pot | 汉扁壶 | <img src="hf_icons/汉扁壶.png" width="100" /> |
| 13 | Zhitong Pot | 直筒壶 | <img src="hf_icons/直筒壶.png" width="100" /> |
| 14 | Danbao Pot | 蛋包壶 | <img src="hf_icons/蛋包壶.png" width="100" /> |
| 15 | Chuanlu Pot | 传炉壶 | <img src="hf_icons/传炉壶.png" width="100" /> |
| 16 | Fangzhong Pot | 方钟壶 | <img src="hf_icons/方钟壶.png" width="100" /> |
| 17 | Hanfang Pot | 汉方壶 | <img src="hf_icons/汉方壶.png" width="100" /> |
| 18 | Sifang Pot | 四方壶 | <img src="hf_icons/四方壶.png" width="100" /> |
| 19 | Liufang Pot | 六方壶 | <img src="hf_icons/六方壶.png" width="100" /> |
| 20 | Duoqiu Pot | 掇球壶 | <img src="hf_icons/掇球壶.png" width="100" /> |
| 21 | Denglong Pot | 灯笼壶 | <img src="hf_icons/灯笼壶.png" width="100" /> |
| 22 | Yangtong Pot | 洋桶壶 | <img src="hf_icons/洋桶壶.png" width="100" /> |
| 23 | Hanjunshi Pot | 汉君式壶 | <img src="hf_icons/汉君式壶.png" width="100" /> |
| 24 | Gongdeng Pot | 宫灯壶 | <img src="hf_icons/宫灯壶.png" width="100" /> |
| 25 | Tangpo Pot | 汤婆壶 | <img src="hf_icons/汤婆壶.png" width="100" /> |
| 26 | Paozun Pot | 匏尊壶 | <img src="hf_icons/匏尊壶.png" width="100" /> |
| 27 | Sengmao Pot | 僧帽壶 | <img src="hf_icons/僧帽壶.png" width="100" /> |
| 28 | Qinquan Pot | 秦权壶 | <img src="hf_icons/秦权壶.png" width="100" /> |
| 29 | Xishi Pot | 西施壶 | <img src="hf_icons/西施壶.png" width="100" /> |
| 30 | Wendan Pot | 文旦壶 | <img src="hf_icons/文旦壶.png" width="100" /> |
| 31 | Dezhong Pot | 德钟壶 | <img src="hf_icons/德钟壶.png" width="100" /> |



### 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 | Preview |
| :--- | :--- | :--- | :--- |
| 1 | Nangua Pot | 南瓜壶 | <img src="hf_icons/南瓜壶.png" width="100" /> |
| 2 | Zhujie Pot | 竹节壶 | <img src="hf_icons/竹节壶.png" width="100" /> |
| 3 | Lianzi Pot | 莲子壶 | <img src="hf_icons/莲子壶.png" width="100" /> |
| 4 | Gualeng Pot | 瓜棱壶 | <img src="hf_icons/瓜棱壶.png" width="100" /> |
| 5 | Zhuduan Pot | 竹段壶 | <img src="hf_icons/竹段壶.png" width="100" /> |
| 6 | Juban Pot | 菊瓣壶 | <img src="hf_icons/菊瓣壶.png" width="100" /> |
| 7 | Hulu Pot | 葫芦壶 | <img src="hf_icons/葫芦壶.png" width="100" /> |
| 8 | Ganlan Pot | 橄榄壶 | <img src="hf_icons/橄榄壶.png" width="100" /> |



### 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 | Preview |
| :--- | :--- | :--- | :--- |
| 1 | Meizhuang Pot | 梅桩壶 | <img src="hf_icons/梅桩壶.png" width="100" /> |
| 2 | Gongchun Pot | 供春壶 | <img src="hf_icons/供春壶.png" width="100" /> |
| 3 | Foshou Pot | 佛手壶 | <img src="hf_icons/佛手壶.png" width="100" /> |
| 4 | Kuifang Pot | 葵仿壶 | <img src="hf_icons/葵仿壶.png" width="100" /> |
| 5 | Yunlong Pot | 云龙壶 | <img src="hf_icons/云龙壶.png" width="100" /> |
| 6 | Shuzhuang Pot | 树桩壶 | <img src="hf_icons/树桩壶.png" width="100" /> |
| 7 | Baochun Pot | 报春壶 | <img src="hf_icons/报春壶.png" width="100" /> |
| 8 | Baiguo Pot | 百果壶 | <img src="hf_icons/百果壶.png" width="100" /> |
| 9 | Shibian Pot | 柿扁壶 | <img src="hf_icons/柿扁壶.png" width="100" /> |
| 10 | Yuhualong Pot | 鱼化龙壶 | <img src="hf_icons/鱼化龙壶.png" width="100" /> |
| 11 | Shiqiu Pot | 狮球壶 | <img src="hf_icons/狮球壶.png" width="100" /> |
| 12 | Xuetao Pot | 雪桃壶 | <img src="hf_icons/雪桃壶.png" width="100" /> |
| 13 | Yinbao Pot | 印包壶 | <img src="hf_icons/印包壶.png" width="100" /> |
| 14 | Mitao Pot | 蜜桃壶 | <img src="hf_icons/蜜桃壶.png" width="100" /> |
| 15 | Chifu Pot | 螭蝮壶 | <img src="hf_icons/螭蝮壶.png" width="100" /> |



### 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 | Preview |
| :--- | :--- | :--- | :--- |
| 1 | Sancha Beam Handle Pot | 三叉提梁壶 | <img src="hf_icons/三叉提梁壶.png" width="100" /> |
| 2 | Danshi Beam Handle Pot | 单式提梁壶 | <img src="hf_icons/单式提梁壶.png" width="100" /> |
| 3 | Ruan Beam Handle Pot | 软提梁壶 | <img src="hf_icons/软提梁壶.png" width="100" /> |



### 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:

```json
{
    '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

```python
from datasets import load_dataset
dataset = load_dataset("AGI-FBHC/ChaHu",name="EN", 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}
}

```