As the next generation standard of video coding, high efficiency video coding (HEVC) achieves high coding efficiency. The coding unit (CU) was adopted as the processing unit for HEVC to improve the coding efficiency. However, determining the optimal distribution of CU sizes requires lengthy calculation. To reduce the calculation time in intra prediction processing, we developed a method that determines the CU sizes using the variance value of the input image. Experimental results show that the proposed method reduces encoding time by about 40-70% compared to that of a conventional HEVC test model.
This paper proposes a new architecture for a singlechip MPEG-2 video encoder with scalability for HDTV and demonstrates its exibility and usefulness. The architecture based on three-layer cooperation provides exible data-transfer that improves the encoder from the standpoints of versatility, scalability, and video quality. The LSI was successfully fabricated in the 0.25-m four-metal CMOS process. Its small size and its low power consumption make it ideal for a wide range of applications, such as DVD recorders, PC-card encoders and HDTV encoders.
In this paper, we propose a multi-frame synchronization method which has sucient scalability, and describe an SHR codec system we have developed that uses MPEG-2 codecs and a multi-HDTV frame synchronizer based on our method.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.