MediaPipe v0.6.4 - Multi-hand tracking, BeginLoop/EndLoop calculators

MediaPipe v0.6.4 - Multi-hand tracking, BeginLoop/EndLoop calculators

• MediaPipe Multi-hand tracking example app
  • For Android, iOS GPU, desktop CPU/GPU
  • BeginLoop/EndLoop calculators for processing a collection of elements iteratively
• Updated dependencies
  • Support Bazel 1.1.0
  • Update TensorFlow dependency to the most recent version
  • Use ‘-std=c++14’ by default
  • Use Google absl’s flat_hash_set and flat_hash_map for better performance.
• Bug fixes
  • Fix a bug in OpenCVVideoDecoderCalculator for issue 204
  • Fix a bug in kinetics_dataset.py for issue 228
• Documentation
  • Multi-hands mobile & desktop
  • Updated list of public events for MediaPipe