Multi-Lable 数据集_multi-label dataset-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_45807767/article/details/128558368

COCO是一个大规模的多任务数据集，包括对象检测、分割、关键点检测和图像captioning，涉及80个物体类别、250,000个带关键点标注的人实例等。COCO有2014和2017两个版本，提供了不同的训练和验证集划分。而CIFAR-100是包含100类图像的子集，每类有600张32x32像素的彩色图片，分为训练和测试两部分。

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COCO

The MS COCO (Microsoft Common Objects in Context) dataset is a large-scale object detection, segmentation, key-point detection, and captioning dataset. The dataset consists of 328K images.

Annotations: The dataset has annotations for

object detection: bounding boxes and per-instance segmentation masks with 80 object categories,
captioning: natural language descriptions of the images (see MS COCO Captions),
keypoints detection: containing more than 200,000 images and 250,000 person instances labeled with keypoints (17 possible keypoints, such as left eye, nose, right hip, right ankle), stuff image segmentation – per-pixel segmentation masks with 91 stuff categories, such as grass, wall, sky (see MS COCO Stuff),
panoptic: full scene segmentation, with 80 thing categories (such as person, bicycle, elephant) and a subset of 91 stuff categories (grass, sky, road), coco–80
dense pose: more than 39,000 images and 56,000 person instances labeled with DensePose annotations – each labeled person is annotated with an instance id and a mapping between image pixels that belong to that person body and a template 3D model. The annotations are publicly available only for training and validation images

COCO-2014

The first version of MS COCO dataset was released in 2014. It contains 164K images split into training (83K), validation (41K) and test (41K) sets. In 2015 additional test set of 81K images was released, including all the previous test images and 40K new images.

COCO-2017

Based on community feedback, in 2017 the training/validation split was changed from 83K/41K to 118K/5K. The new split uses the same images and annotations. The 2017 test set is a subset of 41K images of the 2015 test set. Additionally, the 2017 release contains a new unannotated dataset of 123K images.

CIFAR

The CIFAR-100 dataset (Canadian Institute for Advanced Research, 100 classes) is a subset of the Tiny Images dataset and consists of 60000 32x32 color images. The 100 classes in the CIFAR-100 are grouped into 20 superclasses. There are 600 images per class. Each image comes with a “fine” label (the class to which it belongs) and a “coarse” label (the superclass to which it belongs). There are 500 training images and 100 testing images per class.