transform coding

Baidu Geek Talk

Jun 9, 2022 · Fundamentals

H.265 Video Encoding Principles and Technical Framework

The article explains H.265 (HEVC) encoding fundamentals, describing its two‑layer VCL/NAL architecture, quad‑tree CTU hierarchy, intra‑ and inter‑frame prediction, DCT/DST transform coding, quantization, CABAC entropy coding, and loop‑filtering techniques that together achieve roughly 50 % bitrate reduction while preserving quality.