Research on fast transcoding technology for logo insertion
Yu Liu · Journal of Circuits and Systems · 2005
Video transcoding techniques offer a way to adopt coded video to different application environments, such as matching bit-rate with bandwidth of transmitting channels. In many applications, patterns need be inserted into the coded bit-stream. In this paper, transcoding architecture for pattern insertion is investigated and a fast technique is proposed. This paper also addressed the problems of Motion Vector (MV) optimization and Macro Block (MB) type re-selection induced by pattern insertion. Methods are suggested to solve these matters. According to test results, the proposed approach added a good quality pattern into video stream with high efficiency.