Multiple Priority Region-of-Interest H.264 Video Compression Using Constraint Variable Bitrate Control

Abstract

With the growth of digital video surveillance markets and requirements of high-quality surveillance data, an efficient video compression technique that is suitable for video surveillance applications and is compatible with emerging coding standards, e.g., H.264, is required urgently. This paper presents the method and the corresponding system using region-of-interest H.264 video coding based on constraint variable bitrate control for multiple moving priority regions. The proposed Multiple Moving region-of-interest (RoI) macroblock decision and an RoIbased Constraint Variable Bitrate Control calledMM-RoI-CVBC are able to identify each MB coding priority and increase PSNR (recognition rate) of automatically or maually detected RoI. In comparison with H.264 JM fixed-quantization parameter coding, H.264 JM constant bitrate control (CBR) and other RoI coding algorithms, the proposed MM-RoI-CVBC method can obviously enhance the quality of RoI with less coding complexity in subject to the target bitrate.