Humax Co., Ltd.

Electronics and Telecommunications Research Institute

Industry-University Cooperation Foundation Hanyang University

Jong-Woo Won

Sun-young Lee

Sung-Won Park

Yung-Lyul Lee

Chung-Ku Lee

Euee-S Jang

Jin-Woong Kim

Kyu-Heon Kim

Euee-Seon Jang

Wook-Joong Kim

Hyun-Jong Oh

Yong Ho Cho

Myung-Seok Ki

Yong-Ho Cho

A video unified codec device and corresponding video method. The unified codec device includes parsing and decoding functional units (PD FUs) extracting and grouping context information, control signals, and data in bit streams inputted according to different syntax data per codec, macro-block-based functional units (MB-based FUs) comprising block-based process units of each codec, for decoding data outputted from PD FUs, and a global control unit (GCU) for controlling MB-based FUs grouped after corresponding control signals and context information received from PD FUs to each codec and processing.

Device and method for merging different video codec

There are provided selective prediction encoding and decoding methods and selective prediction encoding and decoding devices. The selective prediction encoding device selects and performs one of an AC/DC prediction encoding method and an intra prediction encoding method which corresponds to the smaller of code amount from AC/DC prediction and an amount of AVC intra coding, records information indicating the selected encoding method in a header of a bit stream, and transmits the bit stream to the selective prediction decoding device. The selective prediction decoding device decodes the transmitted bit stream by the use of a decoding process corresponding to the information recorded in the header. Accordingly, it is possible to improve compression ratio and image quality by using the selective prediction encoding and decoding methods.

Selective prediction encoding and decoding methods and devices with ac/dc and advanced video coding prediction

Disclosed are a system and method for encoding and decoding an image. The image compression system includes an image segmentation unit () for segmenting a first image into a plurality of sub-images; a first encoding unit () for encoding the sub-images to output sub-image bitstreams; a BMAP construction unit () for calculating the quantity of information of each sub-image bitstream and generating BMAP information using the calculated quantity of information and information on construction of each sub-image; and a bitstream combining unit () for combining the sub-image bitstreams and BMAP information.

System and method for encoding and decoding an image using bitstream map and recording medium thereof

Growing community of inventors

Seoul, South Korea

Jong-Woo Won