VVC intra prediction decoder: Feature improvement and performance analysis

Abstract

Nowadays, streaming applications have been in great demand, especially due to covid-19 (teleworking, online teaching, virtual reality, etc.). In addition, artificial intelligence has become widely used especially in video processing domains, so a video with high quality improves the accuracy rate of this application. To meet these needs, the Versatile Video Coding standard (VVC) has appeared to give a high compression efficiency compared to high-efficiency video coding. This norm consists of a high complexity algorithm that offers an improvement in processing time and decreases the bit rate by 50 % thanks to several new compression techniques. In this context, we propose the implementation of an intra prediction decoding chain of this standard on a system on chip. In this work, we highlight the VVC feature enhancements, we present the suitable method for VVC intra-prediction decoder implementation on the PYNQ-Z2, and we provide profiling in terms of decoding time and power consumption. As a future work, this study is helpful to distinguish the block that will be a candidate for a Hardware acceleration.