|
h.265 或者说 NGVC(下一代视频编码)目前正由 ITU-T 的 Video Coding Experts Group (VCEG) 进行前期技术潜力探究,属于一个激进的项目,基本上是一个全新的视频编码标准。
此外还有 MPEG 正在弄的 High-performance Video Coding,简称 HVC,相对来说就不是那么激进,是想在 h.264 High profile 的基础上做一些扩展或者说挖潜,又被称作 h.264+。
在 wiki 上,是这样阐述的:
The preliminary requirements for NGVC are bit rate reduction of 50% at the same subjective image quality and computational complexity comparing to H.264 High profile, with computational complexity ranging from 1/2 to 3 times as that of H.264. NGVC should be able to provide 25% bit rate reduction along with 50% reduction in complexity at the same perceived video quality as H.264 High profile. |
|