# To-Do list for Human library

## Work in Progress

<br>

### Exploring

- Optical Flow: <https://docs.opencv.org/3.3.1/db/d7f/tutorial_js_lucas_kanade.html>
- Histogram Equalization: Regular, Adaptive, Contrast Limited, CLAHE
- TFLite Models: <https://js.tensorflow.org/api_tflite/0.0.1-alpha.4/>
- Body segmentation: `robust-video-matting`
- TFJS incompatibility with latest `long.js` 5.0.0 due to CJS to ESM switch

<br><hr><br>

## Known Issues

#### WebGPU

Experimental support only until support is officially added in Chromium
- Performance issues:
  <https://github.com/tensorflow/tfjs/issues/5689>

### Face Detection

Enhanced rotation correction for face detection is not working in NodeJS due to missing kernel op in TFJS  
Feature is automatically disabled in NodeJS without user impact  

- Backend NodeJS missing kernel op `RotateWithOffset`  
  <https://github.com/tensorflow/tfjs/issues/5473>  

### Body Detection

MoveNet MultiPose model does not work with WASM backend due to missing F32 broadcast implementation

- Backend WASM missing F32 broadcat implementation  
  <https://github.com/tensorflow/tfjs/issues/5516>  

<br><hr><br>

### Pending release

- Supports all modules on all backends  
  via custom implementation of missing kernel ops  
- New frame change detection algorithm used for cache determination  
  based on temporal input difference  
- New optional input histogram equalization  
  auto-level input for optimal brightness/contrast via `config.filter.equalization`  
- Performance and precision improvements  
  **face**, **hand** and **gestures** modules  
- Use custom built TFJS for bundled version  
  reduced bundle size and built-in support for all backends  
  `nobundle` and `node` versions link to standard `@tensorflow` packages  
- Fix **ReactJS** compatibility  
- Better precision using **WASM**  
  Previous issues due to math low-precision in WASM implementation  
- Full **TS** type definitions for all modules and imports  
- Focus on simplified demo  
  <https://vladmandic.github.io/human/demo/typescript/>