Electronics and Telecommunications Research Institute

Sejong University

Kwangwoon University Research Institute for Industry Cooperation

University-industry Cooperation Group of Kyung Hee University

Kyung-Ae Moon

Jin-Woo Hong

Se-Yoon Jeong

Yung-Lyul Lee

Jin-Woong Kim

Jeong-Il Seo

Seoung-Jun Oh

Jae-Gon Kim

Dae-Young Jang

Dong-Gyu Sim

Hae-Chul Choi

Chang-Beom Ahn

Seung-Kwon Beack

In-Seon Jang

Dong-Kyun Kim

Dae-Yeon Kim

Gwang-Hoon Park

Doug-Young Suh

Min-Woo Park

Ho-Chong Park

Weon-Geun Oh

Su-Young Chi

Seung-Pyo Shin

Su-Yeol Jeon

Young-Sup Hwang

Dae-Geun Jang

The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

Apparatus for encoding and decoding image using adaptive DCT coefficient scanning based on pixel similarity and method therefor

Provided is a scalable video encoding method and apparatus, in which in adaptive reference fine grain scalability (AR-FGS) of scalable video coding, a weight value that is greater than a previous weight value provided for each slice overrides the previous weight value in order to generate a reference block for a enhancement layer when a macroblock mode of a base layer is a skip mode.

Scalable video encoding/decoding method and apparatus thereof with overriding weight value in base layer skip mode

Provided are an apparatus for multi-stage transforming a plurality of unit blocks in multi-dimension that can improve compression efficiency of video data by collecting Discrete Cosine Transforming (DCT) coefficients of neighboring blocks and performing an additional transformation based on the DCT coefficients of an original picture and a differential picture. The method includes the steps of: performing a Discrete Cosine Transform (DCT) on inputted picture data and selecting R blocks of a predetermined size from DCT picture data, where R is a natural number equal to or greater than 2; arranging DCT coefficients of each of the selected R blocks according to each frequency in one-dimension; and performing one-dimensional transformation again on the DCT coefficients arranged in one-dimension.

Multi-dimensional and multi-stage transforming apparatus and method

The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes: a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

A method for analyzing structure of a treatise type of document image in order to detect a title, an author and an abstract region and recognize the content in each of the regions is provided. In order to analyze the structure of a treatise type of document, first, the document image divided into a number of regions and the divided regions are classified into text regions and non-text regions according to attributes of the regions. And then, the candidate regions representing an abstract and an introduction is selected, thereafter word regions are extracted from the candidate regions, and an abstract content portion is determined. Thereafter, the title and the author are separated by using the basic form and the type definition representing an arrangement of each of journals. Finally, the content of the separated regions is recognized to generate said table of contents.

Method for analyzing structure of a treatise type of document image

Growing community of inventors

Daejeon, South Korea

Kyung-Ae Moon