Flexible complexity control based on intra frame mode decision in Distributed Video Coding

Distributed Video Coding (DVC) is a coding paradigm that can shift a computationally expensive motion estimation module from encoder to decoder. Although this feature eases encoder complexity, its increased decoder complexity poses another problem. To solve these dilemmas, we propose a DVC scheme in which user can control complexity balance between encoder and decoder by controlling the number of frames which should be intra coded. Because intra mode decision is made to control the computational complexity balance, our proposed method still retains the low encoding complexity which is the main key feature of DVC architecture. Experimental results show that the proposed coding scheme not only increases coding efficiency but also makes itself easy to distribute the computational complexity over encoder and decoder for variety of applications.