【论文笔记】From Image-level to Pixel-level Labeling with Convolutional Networks

Abstract

  1. We are interested in inferring object segmentation by leveraging only object class information, and by considering only minimal priors on the object segmentation task.
  2. This problem could be viewed as a kind of weakly supervised segmentation task, and naturally fits the Multiple Instance Learning (MIL) framework. We propose a Convolutional Neural Network-based model, which is constrained during training to put more weight on pixels which are important for classifying the image.
  3. At the test time, the model has learned to discriminate the right pixels well enough, such that it performs very well on an existing segmentation benchmark, by adding only few smoothing priors.

模型训练过程中的tips

1.BatchNormalization和Dropout虽然可以在大约50个epoch内实现loss的收敛,同时减少过拟合,但是会在后续的epoch中带来loss的突然震荡。若网络层数不多,不建议每一个卷积层后都加一个BatchNormalization层。

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