Datasets Image2D Classification Cifar

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Cifar

• 由加拿大高级研究所（Canadian Institute for Advanced Research）收集和整理的
• Cifar10 常见的 10种物体
• Cifar100 更精细的 100 类物体

Cifar10

• 60000 张 32x32 彩色图片
• 10 个种类，每种 6000 张图片
• 50000 用于 Training，10000 张用于 Test

Cifar100

• 总体有 20 类，20 类细分为 100 子类
• 100 个子类，每类 600 张图片
• 每类 500 张 Training，100 张 Test
• fine 指子类，coarse 指父类

Superclass	Classes
aquatic mammals	beaver, dolphin, otter, seal, whale
fish	aquarium fish, flatfish, ray, shark, trout
flowers	orchids, poppies, roses, sunflowers, tulips
food containers	bottles, bowls, cans, cups, plates
fruit and vegetables	apples, mushrooms, oranges, pears, sweet peppers
household electrical devices	clock, computer keyboard, lamp, telephone, television
household furniture	bed, chair, couch, table, wardrobe
insects	bee, beetle, butterfly, caterpillar, cockroach
large carnivores	bear, leopard, lion, tiger, wolf
large man-made outdoor things	bridge, castle, house, road, skyscraper
large natural outdoor scenes	cloud, forest, mountain, plain, sea
large omnivores and herbivores	camel, cattle, chimpanzee, elephant, kangaroo
medium-sized mammals	fox, porcupine, possum, raccoon, skunk
non-insect invertebrates	crab, lobster, snail, spider, worm
people	baby, boy, girl, man, woman
reptiles	crocodile, dinosaur, lizard, snake, turtle
small mammals	hamster, mouse, rabbit, shrew, squirrel
trees	maple, oak, palm, pine, willow
vehicles 1	bicycle, bus, motorcycle, pickup truck, train
vehicles 2	lawn-mower, rocket, streetcar, tank, tractor

Issues

使用 tensorflow keras api tensorflow.keras.datasets.cifar10.load_data() 下载数据集时特别慢

• 手动下载数据集，并复制为 ~/.keras/datasets/cifar-10-batches-py.tar.gz

Reference

• CIFAR Dataset
  • cifar10 in github - YoongiKim
• keras classification sample code
  • cifar10_cnn.py
  • cifar10_cnn_tfaugment2d.py
• pytorch tutorial cifar10 classification
  • pytorch colab notebook

[junxnone]

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