Rate control algorithm for real-time applications of the multiview
extension of H.264/AVC video coding standard
Abstract
In this work, we propose a rate control algorithm (RCA) which regards
characteristics of multiview video coding (MVC). The proposed RCA is
designed for real-time applications of MVC and optimized to provide high
quality compressed video bit streams with optimal utilization of channel
bandwidth and buffering delay. The proposed RCA uses a fuzzy rate
controller and a deterministic quality controller to define a
quantization parameter (QP) for a Group of Pictures (GOP) based on given
target rate, buffer, and quality constraints. The Key point in the
proposed algorithm is to provide a variable bit rate multiview video bit
stream with minimum fluctuations in QP and thereafter in quality while
the buffer constraints are satisfied. The experimental results show that
it can control the bitrate of all views according to the specified
target bit rates for each view while the buffering constraints are
completely obeyed and it provides compressed video bit streams with high
visual quality.