Move to KerasV3

.github/workflows/actions.yml

@@ -0,0 +1,44 @@
+name: Tests
+
+on:
+  push:
+  workflow_call:
+  release:
+    types: [created]
+
+permissions:
+  contents: read
+
+jobs:
+  video_swin:
+    name: Test Video Swin Transformer with Keras 3
+    strategy:
+      fail-fast: false
+      matrix:
+        backend: [tensorflow, jax, torch]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.9
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        python -m pip install --upgrade pip setuptools
+        echo "::set-output name=dir::$(pip cache dir)"
+    - name: pip cache
+      uses: actions/cache@v4
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('setup.py') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    - name: Install dependencies
+      run: |
+        pip install -r requirements.txt
+        pip install -e ".[tests]" --progress-bar off --upgrade
+    - name: Test with pytest
+      run: |
+        pytest test/ --durations 0

.gitignore

@@ -6,6 +6,11 @@ __pycache__/
 # C extensions
 *.so
 
+# Ignore large file
+*.h5
+*.weights.h5
+*.keras
+
 # Distribution / packaging
 .Python
 build/

CITATION.cff

@@ -5,7 +5,7 @@ cff-version: 1.2.0
 title: videoswin-keras
 message: >-
   If you use this implementation, please cite it using the  
-  metadata from this file
+  metadata from this file.
 type: software
 authors:
   - given-names: Mohammed
@@ -14,9 +14,9 @@ authors:
 identifiers:
   - type: url
     value: 'https://github.com/innat/VideoSwin'
-    description: Keras reimplementation of VideoSwin
+    description: Keras 3 implementation of VideoSwin
 keywords:
   - software
-license: MIT
-version: 1.0.0
-date-released: '2023-10-19'
+license: Apache License
+version: 2.0.0
+date-released: '2024-03-25'

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2023 Mohammed Innat
+   Copyright 2024 Mohammed Innat
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

MODEL_ZOO.md

@@ -1,35 +1,42 @@
 
-# VideoSwin Model Zoo
+# Video Swin Transformer Model Zoo
+
+Video Swin in `keras` can be used with multiple backends, i.e. `tensorflow`, `torch`, and `jax`. The input shape are expected to be `channel_last`, i.e. `(depth, height, width, channel)`.
 
 ## Note
 
+While evaluating the video model for classification task, multiple clips from a video are sampled. This process also involves multiple crops on the sample. 
+
 - `#Frame = #input_frame x #clip x #crop`. The frame interval is `2` to evaluate on benchmark dataset. 
-- `#input_frame` means how many frames are input for model during the test phase.
+- `#input_frame` means how many frames are input for model during the test phase. For video swin, it is `32`.
 - `#crop` means spatial crops (e.g., 3 for left/right/center crop).
 - `#clip` means temporal clips (e.g., 5 means repeted temporal sampling five clips with different start indices).
 
-### Kinetics 400
 
-In the training phase, the video swin mdoels are initialized with the pretrained weights of image swin models. In that case, `IN` referes to **ImageNet**.
+# Checkpoints
 
-| Backbone |  Pretrain  | #Frame | Top-1 | Top-5 | Checkpoints |
-| :---: | :---: | :---: | :---: | :---: | :---: | 
-|  Swin-T  | IN-1K  | 32x4x3 | 78.8  |  93.6  |   [SavedModel](https://github.com/innat/VideoSwin/releases/download/v1.1/TFVideoSwinT_K400_IN1K_P244_W877_32x224.zip)/[h5](https://github.com/innat/VideoSwin/releases/download/v1.0/TFVideoSwinT_K400_IN1K_P244_W877_32x224.h5)  | 
-|  Swin-S  | IN-1K  | 32x4x3 | 80.6  |  94.5  |   [SavedModel](https://github.com/innat/VideoSwin/releases/download/v1.1/TFVideoSwinS_K400_IN1K_P244_W877_32x224.zip)/[h5](https://github.com/innat/VideoSwin/releases/download/v1.0/TFVideoSwinS_K400_IN1K_P244_W877_32x224.h5)  |
-|  Swin-B  | IN-1K  | 32x4x3 | 80.6  |  94.6  |   [SavedModel](https://github.com/innat/VideoSwin/releases/download/v1.1/TFVideoSwinB_K400_IN1K_P244_W877_32x224.zip)/[h5](https://github.com/innat/VideoSwin/releases/download/v1.0/TFVideoSwinB_K400_IN1K_P244_W877_32x224.h5)  | 
-|  Swin-B  | IN-22K | 32x4x3 | 82.7  |  95.5  |   [SavedModel](https://github.com/innat/VideoSwin/releases/download/v1.1/TFVideoSwinB_K400_IN22K_P244_W877_32x224.zip)/[h5](https://github.com/innat/VideoSwin/releases/download/v1.0/TFVideoSwinB_K400_IN22K_P244_W877_32x224.h5)   | 
+In the training phase, the video swin mdoels are initialized with the pretrained weights of image swin models. In that case, `IN` referes to **ImageNet**. In the following, the `keras` checkpoints are the complete model, so `keras.saving.load_model` API can be used. In contrast, the `h5` checkpoints are the only weight file.
+
+### Kinetics 400
+
+| Model |  Pretrain  | #Frame | Top-1 | Top-5 | Checkpoints | config |
+| :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
+|  Swin-T  | IN-1K  | 32x4x3 | 78.8  |  93.6  |   [keras]()/[h5]() | [swin-t](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_tiny_patch244_window877_kinetics400_1k.py)  |
+|  Swin-S  | IN-1K  | 32x4x3 | 80.6  |  94.5  |   [keras]()/[h5]() | [swin-s](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_small_patch244_window877_kinetics400_1k.py)  |
+|  Swin-B  | IN-1K  | 32x4x3 | 80.6  |  94.6  |   [keras]()/[h5]() | [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window877_kinetics400_1k.py)  |
+|  Swin-B  | IN-22K | 32x4x3 | 82.7  |  95.5  |   [keras]()/[h5]() | [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window877_kinetics400_22k.py)  |
 
 ### Kinetics 600
 
-| Backbone |  Pretrain  | #Frame | Top-1 | Top-5 | Checkpoints |
-| :---: | :---: | :---: | :---: | :---: | :---: | 
-|  Swin-B  | IN-22K | 32x4x3 | 84.0  |  96.5  |   [SavedModel](https://github.com/innat/VideoSwin/releases/download/v1.1/TFVideoSwinB_K600_IN22K_P244_W877_32x224.zip)/[h5](https://github.com/innat/VideoSwin/releases/download/v1.0/TFVideoSwinB_K600_IN22K_P244_W877_32x224.h5)  | 
+| Model |  Pretrain  | #Frame | Top-1 | Top-5 | Checkpoints | config |
+| :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
+|  Swin-B  | IN-22K | 32x4x3 | 84.0  |  96.5  |   [keras]()/[h5]()  |  [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window877_kinetics600_22k.py)  | 
 
 ### Something-Something V2
 
-| Backbone |  Pretrain  | #Frame | Top-1 | Top-5 | Checkpoints |
-| :---: | :---: | :---: | :---: | :---: | :---: | 
-|  Swin-B  | Kinetics 400 | 32x1x3 | 69.6  |  92.7  |  [SavedModel](https://github.com/innat/VideoSwin/releases/download/v1.1/TFVideoSwinB_SSV2_K400_P244_W1677_32x224.zip)/[h5](https://github.com/innat/VideoSwin/releases/download/v1.0/TFVideoSwinB_SSV2_K400_P244_W1677_32x224.h5)  | 
+| Model |  Pretrain  | #Frame | Top-1 | Top-5 | Checkpoints | config |
+| :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
+|  Swin-B  | Kinetics 400 | 32x1x3 | 69.6  |  92.7  |  [keras]()/[h5]()  |  [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window1677_sthv2.py)  |
 
 
 ## Weight Comparison
@@ -57,4 +64,3 @@ np.testing.assert_allclose(x, y, 1e-4, 1e-4)
 np.testing.assert_allclose(x, y, 1e-5, 1e-5)
 # OK
 ```
-

README.md

@@ -4,24 +4,14 @@
 
 [![Palestine](https://img.shields.io/badge/Free-Palestine-white?labelColor=green)](https://twitter.com/search?q=%23FreePalestine&src=typed_query)
 
-[![arXiv](https://img.shields.io/badge/arXiv-2106.13230-darkred)](https://arxiv.org/abs/2106.13230) [![keras-2.12.](https://img.shields.io/badge/keras-2.12-darkred)]([?](https://img.shields.io/badge/keras-2.12-darkred)) [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1Q7A700MEI10UomikqjQJANWyFZktJCT-?usp=sharing) [![HugginFace badge](https://img.shields.io/badge/🤗%20Hugging%20Face-Spaces-yellow.svg)](https://huggingface.co/spaces/innat/VideoSwin) [![HugginFace badge](https://img.shields.io/badge/🤗%20Hugging%20Face-Hub-yellow.svg)](https://huggingface.co/innat/videoswin)
+[![arXiv](https://img.shields.io/badge/arXiv-2106.13230-darkred)](https://arxiv.org/abs/2106.13230) [![keras-3](https://img.shields.io/badge/keras-3-darkred
+)]([?](https://img.shields.io/badge/keras-2.12-darkred)) [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1Q7A700MEI10UomikqjQJANWyFZktJCT-?usp=sharing) [![HugginFace badge](https://img.shields.io/badge/🤗%20Hugging%20Face-Spaces-yellow.svg)](https://huggingface.co/spaces/innat/VideoSwin) [![HugginFace badge](https://img.shields.io/badge/🤗%20Hugging%20Face-Hub-yellow.svg)](https://huggingface.co/innat/videoswin)
 
 
 VideoSwin is a pure transformer based video modeling algorithm, attained top accuracy on the major video recognition benchmarks. In this model, the author advocates an inductive bias of locality in video transformers, which leads to a better speed-accuracy trade-off compared to previous approaches which compute self-attention globally even with spatial-temporal factorization. The locality of the proposed video architecture is realized by adapting the [**Swin Transformer**](https://arxiv.org/abs/2103.14030) designed for the image domain, while continuing to leverage the power of pre-trained image models.
 
-This is a unofficial `Keras` implementation of [Video Swin transformers](https://arxiv.org/abs/2106.13230). The official `PyTorch` implementation is [here](https://github.com/SwinTransformer/Video-Swin-Transformer) based on [mmaction2](https://github.com/open-mmlab/mmaction2).
+This is a unofficial `Keras 3` implementation of [Video Swin transformers](https://arxiv.org/abs/2106.13230). The official `PyTorch` implementation is [here](https://github.com/SwinTransformer/Video-Swin-Transformer) based on [mmaction2](https://github.com/open-mmlab/mmaction2). The official PyTorch weight has been converted to `Keras 3` compatible. This implementaiton supports to run the model on multiple backend, i.e. TensorFlow, PyTorch, and Jax.
 
-## News
-
-- **[05-01-2024]**: Video Swin now available in Kaggle Model with **TensorFlow (Keras 2)**, **Keras V3**, **TFLite**, and **ONNX** formats. [Link](https://www.kaggle.com/models/ipythonx/videoswin/)
-- [24-11-2023]: [WIP https://github.com/innat/VideoSwin/pull/2] Supporting Keras V3 for TensorFlow, JAX, and PyTorch backend. 
-- **[24-10-2023]**: [Kinetics-400](https://www.deepmind.com/open-source/kinetics) test data set can be found on kaggle, [link](https://www.kaggle.com/datasets/ipythonx/k4testset/data?select=videos_val).
-- **[14-10-2023]**: VideoSwin integrated into [Huggingface Space](https://huggingface.co/spaces/innat/VideoSwin).
-- **[12-10-2023]**: GPU(s), TPU-VM for fine-tune training are supported, [colab](https://github.com/innat/VideoSwin/blob/main/notebooks/videoswin_video_classification.ipynb).
-- **[09-10-2023]**: TensorFlow [SavedModel](https://www.tensorflow.org/guide/saved_model) (formet) checkpoints, [link](https://github.com/innat/VideoSwin/releases/tag/v1.1).
-- **[08-10-2023]**: VideoSwin checkpoints [SSV2](https://developer.qualcomm.com/software/ai-datasets/something-something) and [Kinetics-600](https://www.deepmind.com/open-source/kinetics) becomes available, [link](https://github.com/innat/VideoSwin/releases/tag/v1.0).
-- **[07-10-2023]**: VideoSwin checkpoints on [Kinetics-400](https://www.deepmind.com/open-source/kinetics) becomes available, [link](https://github.com/innat/VideoSwin/releases/tag/v1.0).
-- **[06-10-2023]**: Code of VideoSwin in Keras becomes available.
 
 # Install 
 
@@ -31,25 +21,37 @@ cd VideoSwin
 pip install -e . 
 ```
 
-# Usage
+# Checkpoints
+
+The **VideoSwin** checkpoints are available in both `.weights.h5`, and `.keras` formats. The variants of this models are `tiny`, `small`, and `base`. Check [model zoo](https://github.com/innat/VideoSwin/blob/main/MODEL_ZOO.md) page to know details of it. 
 
-The **VideoSwin** checkpoints are available in both `SavedModel` and `H5` formats. The variants of this models are `tiny`, `small`, and `base`. Check this [release](https://github.com/innat/VideoSwin/releases/tag/v1.0) and [model zoo](https://github.com/innat/VideoSwin/blob/main/MODEL_ZOO.md) page to know details of it. Following are some hightlights.
 
 **Inference**
 
 ```python
 from videoswin import VideoSwinT
 
->>> model = VideoSwinT(num_classes=400)
->>> model.load_weights('TFVideoSwinT_K400_IN1K_P244_W877_32x224.h5')
+>>> import  os
+>>> import torch
+>>> os.environ["KERAS_BACKEND"] = "torch"
+>>> from videoswin import VideoSwinT
+
+>>> model = VideoSwinT(
+    num_classes=400,
+    include_rescaling=False,
+    activation=None
+)
+>>> _ = model(torch.ones((1, 32, 224, 224, 3)))
+>>> model.load_weights('model.weights.h5')
+
 >>> container = read_video('sample.mp4')
 >>> frames = frame_sampling(container, num_frames=32)
->>> y = model(frames)
->>> y.shape
+>>> y_pred = model(frames)
+>>> y_pred.shape
 TensorShape([1, 400])
 
->>> probabilities = tf.nn.softmax(y_pred_tf)
->>> probabilities = probabilities.numpy().squeeze(0)
+>>> probabilities = torch.nn.functional.softmax(y_pred).detach().numpy()
+>>> probabilities = probabilities.squeeze(0)
 >>> confidences = {
     label_map_inv[i]: float(probabilities[i]) \
     for i in np.argsort(probabilities)[::-1]
@@ -86,61 +88,6 @@ model.fit(...)
 model.predict(...)
 ```
 
-**Attention Maps**
-
-By passing `return_attns=True` in the forward pass, we can get the attention scores from each basic block of the model as well. For example,
-
-```python
-from videomae import VideoSwinT
-
->>> model = VideoSwinT(num_classes=400)
->>> model.load_weights('TFVideoSwinT_K400_IN1K_P244_W877_32x224.h5')
->>> container = read_video('sample.mp4')
->>> frames = frame_sampling(container, num_frames=32)
->>> y, attns_scores = model(frames, return_attns=True)
-
-for k, v in attns_scores.items():
-    print(k, v.shape) # num_heads, depth, seq_len, seq_len
-TFBasicLayer1_att (128, 3, 392, 392)
-TFBasicLayer2_att (32, 6, 392, 392)
-TFBasicLayer3_att (8, 12, 392, 392)
-TFBasicLayer4_att (2, 24, 392, 392)
-```
-
-
-## Model Zoo
-
-The 3D swin-video checkpoints are listed in [`MODEL_ZOO.md`](MODEL_ZOO.md). Following are some hightlights.
-
-### Kinetics 400
-
-In the training phase, the video swin mdoels are initialized with the pretrained weights of image swin models. In that case, `IN` referes to **ImageNet**.
-
-| Backbone |  Pretrain  | Top-1 | Top-5 | #params | FLOPs | config |
-| :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
-|  Swin-T  | IN-1K |  78.8  |  93.6  |   28M   |  ?   |  [swin-t](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_tiny_patch244_window877_kinetics400_1k.py)  |
-|  Swin-S  | IN-1K |  80.6  |  94.5  |   50M   |  ?  |  [swin-s](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_small_patch244_window877_kinetics400_1k.py)  |
-|  Swin-B  | IN-1K |  80.6  |  94.6  |   88M   |  ?  |  [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window877_kinetics400_1k.py)  |
-|  Swin-B  | IN-22K | 82.7  |  95.5  |   88M   |  ?  |  [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window877_kinetics400_22k.py)  |
-
-### Kinetics 600
-
-| Backbone |  Pretrain   | Top-1 | Top-5 | #params | FLOPs | config |
-| :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
-|  Swin-B  | IN-22K | 84.0  |  96.5  |   88M   |  ?  |  [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window877_kinetics600_22k.py)  | 
-
-### Something-Something V2
-
-| Backbone |  Pretrain   |  Top-1 | Top-5 | #params | FLOPs | config |
-| :---: | :---: | :---: | :---: | :---: | :---: | :---: | 
-|  Swin-B  | Kinetics 400 |  69.6  |  92.7  |   89M   |  ?  |  [swin-b](https://github.com/SwinTransformer/Video-Swin-Transformer/blob/master/configs/recognition/swin/swin_base_patch244_window1677_sthv2.py)  |
-
-
-# TODO
-- [x] Custom fine-tuning code.
-- [x] Publish on TF-Hub or Kaggle Model.
-- [ ] Support `Keras V3` to support multi-framework backend.
-
 ##  Citation
 
 If you use this videoswin implementation in your research, please cite it using the metadata from our `CITATION.cff` file.