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Day 11

计算机视觉

任务:

  • 分类 Classification
  • 定位 Localization
  • 检测 Detection
  • 分区 Segmentation

从图像中自动抽取信息,模拟人的视觉行为。

OpenCV

开源的计算机视觉库。cv2。

识别的指标

  • 精确率 (Precision)
  • 召回率 (Recall)
  • 准确率 (Accuracy)

平均精确率均值mAP, PR曲线的覆盖率AUC

神经网络

R-CNN (Regions with CNN features). YOLO (You only look once). SSMD (Single Shot MultiBox Detector).

Tensorflow Data

读取数据、打乱数据等。