Francesco/activity-diagrams-qdobr

---
dataset_info:
features:
- name: image_id
dtype: int64
- name: image
dtype: image
- name: width
dtype: int32
- name: height
dtype: int32
- name: objects
sequence:
- name: id
dtype: int64
- name: area
dtype: int64
- name: bbox
sequence: float32
length: 4
- name: category
dtype:
class_label:
names:
'0': activity-diagrams
'1': action
'2': activity
'3': commeent
'4': control_flow
'5': control_flowcontrol_flow
'6': decision_node
'7': exit_node
'8': final_flow_node
'9': final_node
'10': fork
'11': merge
'12': merge_noode
'13': null
'14': object
'15': object_flow
'16': signal_recept
'17': signal_send
'18': start_node
'19': text
annotations_creators:
- crowdsourced
language_creators:
- found
language:
- en
license:
- cc
multilinguality:
- monolingual
size_categories:
- 1K<n<10K
source_datasets:
- original
task_categories:
- object-detection
task_ids: []
pretty_name: activity-diagrams-qdobr
tags:
- rf100
---

# Dataset Card for activity-diagrams-qdobr

** The original COCO dataset is stored at `dataset.tar.gz`**

## Dataset Description

- **Homepage:** https://universe.roboflow.com/object-detection/activity-diagrams-qdobr
- **Point of Contact:** [e-mail]

### Dataset Summary

activity-diagrams-qdobr

### Supported Tasks and Leaderboards

- `object-detection`: The dataset can be used to train a model for Object Detection.

### Languages

English

## Dataset Structure

### Data Instances

A data point comprises an image and its object annotations.

```
{
'image_id': 15,
'image': <PIL.JpegImagePlugin.JpegImageFile image mode=RGB size=640x640 at 0x2373B065C18>,
'width': 964043,
'height': 640,
'objects': {
'id': [114, 115, 116, 117],
'area': [3796, 1596, 152768, 81002],
'bbox': [
[302.0, 109.0, 73.0, 52.0],
[810.0, 100.0, 57.0, 28.0],
[160.0, 31.0, 248.0, 616.0],
[741.0, 68.0, 202.0, 401.0]
],
'category': [4, 4, 0, 0]
}
}
```

### Data Fields

- `image`: the image id
- `image`: `PIL.Image.Image` object containing the image. Note that when accessing the image column: `dataset[0]["image"]` the image file is automatically decoded. Decoding of a large number of image files might take a significant amount of time. Thus it is important to first query the sample index before the `"image"` column, *i.e.* `dataset[0]["image"]` should **always** be preferred over `dataset["image"][0]`
- `width`: the image width
- `height`: the image height
- `objects`: a dictionary containing bounding box metadata for the objects present on the image
- `id`: the annotation id
- `area`: the area of the bounding box
- `bbox`: the object's bounding box (in the [coco](https://albumentations.ai/docs/getting_started/bounding_boxes_augmentation/#coco) format)
- `category`: the object's category.

#### Who are the annotators?

Annotators are Roboflow users

## Additional Information

### Licensing Information

See original homepage https://universe.roboflow.com/object-detection/activity-diagrams-qdobr

### Citation Information

```
@misc{ activity-diagrams-qdobr,
title = { activity diagrams qdobr Dataset },
type = { Open Source Dataset },
author = { Roboflow 100 },
howpublished = { \url{ https://universe.roboflow.com/object-detection/activity-diagrams-qdobr } },
url = { https://universe.roboflow.com/object-detection/activity-diagrams-qdobr },
journal = { Roboflow Universe },
publisher = { Roboflow },
year = { 2022 },
month = { nov },
note = { visited on 2023-03-29 },
}"
```

### Contributions

Thanks to [@mariosasko](https://github.com/mariosasko) for adding this dataset.

原始信息汇总

数据集概述

数据集名称

• 名称: activity-diagrams-qdobr

数据集特征

• 特征:
  • image_id: 整数类型
  • image: 图像类型
  • width: 整数类型
  • height: 整数类型
  • objects: 序列类型，包含以下子特征:
    • id: 整数类型
    • area: 整数类型
    • bbox: 浮点数序列，长度为4
    • category: 类别标签，包含多个类别名称

数据集结构

• 数据实例:
  • 每个数据点包含一张图片及其对象标注信息。
  • 示例: json { image_id: 15, image: <PIL.JpegImagePlugin.JpegImageFile image mode=RGB size=640x640 at 0x2373B065C18>, width: 964043, height: 640, objects: { id: [114, 115, 116, 117], area: [3796, 1596, 152768, 81002], bbox: [ [302.0, 109.0, 73.0, 52.0], [810.0, 100.0, 57.0, 28.0], [160.0, 31.0, 248.0, 616.0], [741.0, 68.0, 202.0, 401.0] ], category: [4, 4, 0, 0] } }

数据字段

• image: 图片对象
• width: 图片宽度
• height: 图片高度
• objects: 包含对象信息的字典
  • id: 标注ID
  • area: 边界框面积
  • bbox: 边界框坐标
  • category: 对象类别

数据集用途

• 任务类别: 对象检测