Initial snapshot: hand motion pipeline (Dyn-HaMR + dex-retargeting + SPIDER)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

third_party/hamer/third-party/ViTPose/tools/webcam/README.md

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+# MMPose Webcam API
+
+MMPose Webcam API is a handy tool to develop interactive webcam applications with MMPose functions.
+
+<div align=center>
+<img src="https://user-images.githubusercontent.com/15977946/153800450-2522efe8-bc11-457d-9037-d8aee4fc4f36.png">
+<figcaption>MMPose Webcam API Overview</figcaption>
+</div>
+
+## Requirements
+
+* Python >= 3.7.0
+* MMPose >= 0.23.0
+* MMDetection >= 2.21.0
+
+## Tutorials
+
+* [Get started with MMPose Webcam API (Chinese)](/tools/webcam/docs/get_started_cn.md)
+* [Build a Webcam App: A Step-by-step Instruction (Chinese)](/tools/webcam/docs/example_cn.md)
+
+## Examples
+
+* [Pose Estimation](/tools/webcam/configs/examples/): A simple example to estimate and visualize human/animal pose.
+* [Eye Effects](/tools/webcam/configs/eyes/): Apply sunglasses and bug-eye effects.
+* [Face Swap](/tools/webcam/configs/face_swap/): Everybody gets someone else's face.
+* [Meow Dwen Dwen](/tools/webcam/configs/meow_dwen_dwen/): Dress up your cat in Bing Dwen Dwen costume.
+* [Super Saiyan](/tools/webcam/configs/supersaiyan/): Super Saiyan transformation!
+* [New Year](/tools/webcam/configs/newyear/): Set off some firecrackers to celebrate Chinese New Year.