A Flexible Video CODEC System for Super High Resolution Video

Takeshi YOSHITOME, Ken NAKAMURA, Jiro NAGANUMA, Yoshiyuki YASHIMA

Summary :

We propose a flexible video CODEC system for super-high-resolution videos such as those utilizing 4k2k pixel. It uses the spatially parallel encoding approach and has sufficient scalability for the target video resolution to be encoded. A video shift and padding function has been introduced to prevent the image quality from being degraded when different active line systems are connected. The switchable cascade multiplexing function of our system enables various super-high-resolutions to be encoded and super-high-resolution video streams to be recorded and played back using a conventional PC. A two-stage encoding method using the complexity of each divided image has been introduced to equalize encoding quality among multiple divided videos. System Time Clock (STC) sharing has also been implemented in this CODEC system to absorb the disparity in the times streams are received between channels. These functions enable highly-efficient, high-quality encoding for super-high-resolution video.

• Publication: IEICE TRANSACTIONS on Information Vol.E91-D No.11 pp.2709-2717
• Publication Date: 2008/11/01
• Online ISSN: 1745-1361
• DOI: 10.1093/ietisy/e91-d.11.2709
• Type of Manuscript: PAPER
• Category: Image Processing and Video Processing

Authors

Takeshi YOSHITOME
Ken NAKAMURA
Jiro NAGANUMA
Yoshiyuki YASHIMA

Keyword

super high resolution video,  CODEC,  4k2k