Title :
HDTV1080p HEVC Intra encoder with source texture based CU/PU mode pre-decision
Author :
Jia Zhu ; Zhenyu Liu ; Dongsheng Wang ; Qingrui Han ; Yang Song
Author_Institution :
IMETU & TNList, Tsinghua Univ., Beijing, China
Abstract :
HEVC doubles the coding efficiency with more than 4x coding complexity as compared to H.264/AVC. To alleviate the burden of Intra encoder, we estimate the RD-cost from the source image textures, and dynamically select two promising CU/PU mode candidates to execute exhaustive RDO processing. As integrated in our hardwired encoder, the averaged 61.7% computation complexity was saved with 4.53% rate augment. With TSMC 90nm technology, the real-time encoder for HDTV1080p at 44fps is implemented with 2269k-gate at 357MHz operating frequency.
Keywords :
high definition television; image texture; video coding; HDTV1080p; HEVC intraencoder; RD-cost; RDO processing; TSMC technology; frequency 357 MHz; hardwired encoder; high efficiency video coding; image texture; source texture based CU-PU mode predecision; Algorithm design and analysis; Encoding; Engines; Estimation; Hardware; Image edge detection; Quantization (signal);
Conference_Titel :
Design Automation Conference (ASP-DAC), 2014 19th Asia and South Pacific
Conference_Location :
Singapore
DOI :
10.1109/ASPDAC.2014.6742917
