Summary:
Change log
- Support rectangle cropping, where height and width of clip cropping can be set separately. This is useful when most video resolution is non-square, such as 240p, 360p and 480p where width is significantly larger than height.
- Comparisons of training on ucf101 between using 112x112 croppings and using 112x144 cropping.
- https://fburl.com/i0rw6y1k
- Support 14 multi-cropping per video clip at testing stage to improve classification accuracy. Take left-top, central-top, right-top, left-bottom, central-bottom, right-bottom and central-central croppings as well as their mirrorings. In total, 14 croppings.
- Comparisons on the same model trained on UCF-101. Use 1 clip per video
- RGB. f41014306, w/o Vs f41014868, w/ multi-cropping: `0.64099 Vs 0.65796`
- OF. f41014889, w/o Vs f41014913, w/ multi-cropping: `0.65796 Vs 0.67624`
- Support color jittering and color lighting on RGB data for training data augmentation.
- Comparisons of training on ucf101 from scratch with and without color jittering and lighting:
- https://fburl.com/k69zatul
Reviewed By: HengCV
Differential Revision: D6962620
fbshipit-source-id: 9b43478945874142727fea351ee04417218e6606
Summary: This allows users to add an arbitrary of additional outputs to ImageInputOp. These are populated by reading additional TensorProto values from the TensorProtos from the DBReader, and converting them into Tensors. Similar to labels, only ints and floats are supported, and multiple values are supported.
Reviewed By: panshen1
Differential Revision: D5502019
fbshipit-source-id: 5a8b61b3a8549272a112e8e02cd613d8f9a271ba
Summary: Adding a simple video data layer which allows to read video data from frames, videos and output 5D tensor. It also allows multiple labels. The current implementation is based on ffmpeg
Differential Revision: D4801798
fbshipit-source-id: 46448e9c65fb055c2d71855447383a33ade0e444
Summary:
Adding add_weight_decay and image_input to brew module & remove `getWeights` and `getBias` from CNNModelHelper
With fbgs `useWeights`, the results show that noone but add_weight_decay is using this function. I checked with oculus people, their getWeights is a different function.
kennyhorror Please notice whether this is going to affect you :)
Reviewed By: salexspb
Differential Revision: D4945392
fbshipit-source-id: 4ef350fd81dd40a91847e9f3ebc5421eb564df32
