I tried using sample code "Applying Matte Effects to People in Images and Videos" on iPhone 12 mini, but it's not accurate near the boundaries (especially hair). I even tried .accurate mode in segmentation quality level that causes iPhone to overheat quickly but still segmentation is not good for live video. One thing that may matter is results of segmentation are not as good as matting which applies alpha channel for the hair to blend accurately with the background. But if I am missing something, please do point out.
