Encoder Optimization Techniques for Video Coding
High efficiency video coding (HEVC) is the recent video coding standard which gives the better compression results as well as more bit rate savings at the same video quality as compared to its previous video coding standards. HEVC acquired the quad tree based structure to increase the coding efficiency. The complexity of a closed-loop transcoder is actually induce by the extremely large computation in the encoder part. Many techniques have been introduced to optimize the encoding process to reduce the computational complexity of the transcoder. Maximum techniques focus on to figure out the coding modes in the output video to early confine encoding. Following are the two main ways of optimizing the encoder first one is fast encoding excluding the coding information of the input video and second is using the coding information in the input video to speed up the encoding.
Index terms - Encoding, High Efficiency Video Coding (HEVC), Transcoding