Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Sang-jo Lee

Si-hwa Lee

Do-Hyung Kim

Chun-Gyoo Lee

Sang-hyuck Ahn

Su-Bong Hong

Sang-Ho Jeon

Byong-gon Lee

Woo-shik Kim

Yong-Soo Choi

Ho-jin Lee

Shi-hwa Lee

Sang-Hyuck Ahn

Byong-Gon Lee

Joon-ho Song

Sang-Hoon Ha

Min-Soo Kim

Dae-sung Cho

Sang-Wook Kim

Jong-Min Kim

Do-hyung Kim

Doo-hyun Kim

Sam-Il Han

Tae-Sik Oh

Cheol-Hyeon Chang

Jin-Hui Cho

Doh-hyung Kim

Ho-Su Han

Hye-yeon Kim

A method of decoding a bitstream, a method of accelerating an inverse transform, an apparatus, a video decoder, and a non-transitory computer-readable recording medium are provided. The method includes receiving an encoded bitstream, extracting transformation coefficients from the received bitstream, determining a position of a block including at least one nonzero transformation coefficient from among the extracted transformation coefficients, and generating decoded video data by inverse-transforming transformation coefficients in the block by using the determined position.

Method and apparatus for accelerating inverse transform, and method and apparatus for decoding video stream

A method for distributing a load, according to one embodiment, includes: identifying characteristics of each of frames included in a received bit stream; and distributing loads of a plurality of cores based on the characteristics of each of the frames whenever the frames are decoded.

Method and device for distributing load according to characteristic of frame

Disclosed is a method of recording variable size data. A first processor receives, from a second processor, a read parameter including information on a read address value of data which has been read by the second processor and is stored in an external memory, compares the read address value acquired from the received read parameter and a record address value for data previously recorded in the external memory by the first processor, and determines whether or not the first processor is to transmit data to the second processor on the basis of the comparison result.

Method and processor for recording variable size data, and method, processor and recording medium for reading variable size data

A system, medium, and method compressing and/or restoring images. Such a data compression method may include selecting a mode from among a plurality of modes for compressing current data, according to predetermined criteria, and calculating a difference between the current data and reference data, according to the selected mode, and compressing the current data, or truncating a part of the current data and compressing the current data. Accordingly, it is possible to significantly lower the complexity of an image encoder/decoder system and exactly meet a picture-based CBR required by LCD DCC devices/systems.

Method, medium, and system compressing and/or reconstructing image information with low complexity

A method of compressing a 2&#xd7;2 block based binary image is provided. The method includes: determining whether pixels included in a block are included in existing patterns; generating the number N of the pixels included in the existing patterns (N is a natural number); when N is more than a predetermined value, compressing the block with a binary bit stream comprising information about patterns of the pixels included in the existing patterns and color information about the pixels having a new pattern. The method of compressing a 2&#xd7;2 block based binary image reduces information damage which may occur during compression and restoration of the binary pattern so that the difference in picture quality between an original image and the restored image can be visibly improved.

Method of compressing a block-based binary image

A method and an apparatus of compressing image data are provided. The method of compressing data comprises calculating differences between values of predetermined pixels from among pixels constructing an image and values of reference pixels respectively corresponding to the predetermined pixels; ordering bits, which correspond to bit strings of the differences, into bit planes; and coding the bit planes according to priority of the bit planes.

Method and apparatus of compressing image data

Provided are a motion estimation apparatus and method and an image encoding apparatus and method employing the same. The motion estimation apparatus includes an optimal motion estimation unit performing motion estimation in an initial block mode while skipping remaining block modes excluding the initial block mode from a plurality of block modes of the current block, or performing motion estimation in candidate block modes determined from the plurality of block modes.

Motion estimation apparatus and method and image encoding apparatus and method employing the same

A method, medium, and apparatus encoding and/or decoding an image according to human psycho-visual characteristics. According to a method, medium, and apparatus, error values corresponding to a range in which error values can be recognized because of the human psycho-visual characteristic are selectively encoded.

Apparatus, method, and medium encoding/decoding images through application of psycho-visual characteristics

A method, medium, and system compressing an image, and a method, medium, and system recovering an image. Values of colors of a pixel from among pixels making up an image are predicted from values of colors of a reference pixel corresponding to the pixel, and the predicted values of the colors of the pixel are corrected based on similarities in variations in color values in the image.

Method, medium and system adjusting predicted values based on similarities between color values for image compressing/recovering

A method, medium, and system effectively compressing and/or restoring binary images. By compressing pixel values making up a 2&#xd7;2 block in an input image, using representative values representing the pixel values and a pattern of the pixel values represented by the representative values, it is possible to effectively compress and/or restore binary images having little similarities between pixel values. In addition, by extracting compressed values and a pattern of pixel values making up a 2&#xd7;2 block in an image, from compressed data of the 2&#xd7;2 block, and restoring pixel values using the compressed values and the pattern, it is possible to effectively restore binary images.

Method, medium, and system effectively compressing and/or restoring binary images

A method, medium, and system compressing and/or reconstructing image data. The data compression method includes compressing current data according to a plurality of modes for compressing current data, determining whether the current data compressed according to the plurality of modes can be represented by a fixed length of bits, selecting a mode from among modes in which the compressed current data can be represented by the fixed length of bits, and outputting the compressed current data according to the selected mode. Accordingly, it is possible to significantly lower the complexity of an image encoder/decoder system, and exactly meet a picture-based Control Bit Rate (CBR) suitable for a Liquid Crystal Display Dynamic Capacitance Compensation (LCD DCC) device/system.

Method, medium, and system visually compressing image data

A motion estimation method, medium, and system with fast motion estimation. The motion estimation method includes comparing a cost indicating a difference between a current block of a current image and a block of a reference image specified by a starting point with a predetermined threshold and selectively searching for the best matching block of the current block from the starting point according to the comparison result.

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Suwon-si, South Korea

Sang-jo Lee