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Sliding window vs. Selective search detection #197
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Please see #189 to continue the conversation. It's true that the majority of the work is already accomplished in Caffe as it is. However, there are details for dense, multiscale extraction that need addressing.
Progress-wise: 1 is done (we'll try to write it up soon!), and 2 has a private implementation that is planned for release but currently delayed. A BVLC + community implementation of 2 is being thought out at #189. To me, reference implementations of both OverFeat [1] and R-CNN [2] in Caffe would be helpful in further analyzing these models and comparing the tradeoffs of dense, sliding window detection and attentive, region proposal detection. Pull requests toward implementing OverFeat in Caffe would be welcomed. R-CNN is already on its way to having a Caffe reference model. [1] Pierre Sermanet, David Eigen, Xiang Zhang, Michael Mathieu, Rob Fergus, Yann LeCun. OverFeat: Integrated Recognition, Localization and Detection using Convolutional Networks. arXiv:1312.6229 [cs.CV]. [2] Ross Girshick, Jeff Donahue, Trevor Darrell, Jitendra Malik. Rich feature hierarchies for accurate object detection and semantic segmentation. arXiv:1311.2524 [cs.CV]. |
To the best of my understanding there is nothing stopping Caffe to be used as a sliding window detector (instead of using selective search crop proposals as in http://caffe.berkeleyvision.org/imagenet_detection.html).
It is there any technical blocker to implement something in the lines of OverFeat ?
http://arxiv.org/abs/1312.6229
(there is test time code provided, but no training code)
It is there any existing branch exploring such idea ?
(I am lost amongst all the Caffe branches, hard to see who is doing what...)
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