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Bilibili Tech

Jul 1, 2022 · Artificial Intelligence

Quality‑Controlled Scene‑Adaptive Video Transcoding System at Bilibili

Bilibili’s quality‑controlled scene‑adaptive transcoding system automatically splits videos into shot‑level segments, predicts optimal encoding parameters with a deep‑learning model, applies two‑pass VMAF‑targeted encoding and ROI‑aware bitrate allocation, achieving stable visual quality, 99% accuracy, and roughly 15% bitrate reduction.

ROI encodingVMAFdeep learning

0 likes · 25 min read

Quality‑Controlled Scene‑Adaptive Video Transcoding System at Bilibili

Tencent Cloud Developer

Nov 18, 2020 · Backend Development

Advanced Video Encoding Techniques in Tencent Meeting: Temporal SVC, ROI‑Based Encoding, Screen Content Coding, and YUV444 Support

Tencent Meeting enhances real-time video quality and bandwidth efficiency by using temporal scalable video coding to protect against packet loss, ROI-based encoding that prioritizes faces, screen-content coding with intra-block copy and palette modes, YUV444 chroma support for accurate colors, and highly optimized proprietary H.264/H.265 encoders that deliver up to 84% compression improvement.

ROI encodingReal-time CommunicationScreen Content Coding

0 likes · 11 min read

Advanced Video Encoding Techniques in Tencent Meeting: Temporal SVC, ROI‑Based Encoding, Screen Content Coding, and YUV444 Support

Youku Technology

Oct 29, 2018 · Artificial Intelligence

Improving Online Video Experience: Youku’s End‑to‑End Video Quality Enhancement Techniques

Youku enhances online video by applying intelligent post‑production contrast mapping, device‑specific HDR tone‑mapping, high‑frame‑rate restoration through frame‑rate conversion, and ROI‑aware encoding that allocates bitrate to key visual areas, complemented by audio processing, to deliver cinema‑grade quality across diverse screens.

HDRROI encodingStreaming

0 likes · 9 min read

Improving Online Video Experience: Youku’s End‑to‑End Video Quality Enhancement Techniques