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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.
This article provides a comprehensive technical analysis of Kuaishou's self-developed KFRUC video frame interpolation algorithm, detailing its motion estimation, occlusion localization, and motion compensation mechanisms to enhance playback smoothness and visual quality in slow-motion and high-frame-rate video applications.
This article explains video frame interpolation, compares algorithm categories, and deep‑dives into Kuaishou’s KFRUC method—covering its hybrid motion estimation, occlusion detection, and motion compensation techniques that enable smooth slow‑motion playback without stutter.
During the World Cup, Youku used a frame‑rate‑up‑conversion algorithm that synthesizes intermediate frames by combining block‑based motion estimation, optical‑flow refinement, and a rule‑based plus deep‑learning fusion, enabling smooth 25→50 fps video and preserving fast‑moving objects such as a football.