Samsung Electronics Co., Ltd.

Chang-su Han

Ki-won Yoo

Jong-Hyun Park

Jae-moon Kim

Sang-kwon Na

Sung-dae Kim

Se-hyeok Park

Hyung-Jun Daniel Park

Chan-sik Park

Hyung-Ju Chun

Seung-ho Park

Byung-seok Min

Myung-ho Kim

Gun-Shik Shin

Yong-hoon Yu

Il-soon Lim

A video encoder and decoder are described. The encoder operates on luma data and chroma data. The luma data is split into two channels. The channel split can be based on frequency regions or based on even and odd lines. When the channel split is based on frequency regions, the encoder produces a channel with low frequency data and a channel with high frequency data. A third channel holds chroma data. The decoder recovers the split luma data and the third channel of chroma data. The decoder may then generate one or more pixels to be stored in a line buffer.

Image decoding method and device therefor, and image encoding method and device therefor

A video encoding method includes: receiving an image; up-sampling the received image; and changing a sample value of an up-sampling region included in the up-sampled image and encoding the up-sampled image by using the changed sample value, wherein the up-sampling region is a region inserted into the received image by the up-sampling.

Video decoding method and apparatus and video encoding method and apparatus

Provided are a method and an apparatus for decoding an image by accessing a memory by a block group. The method comprises checking information regarding a size of one or more blocks included in a bitstream of an encoded image, determining whether to group one or more blocks for performing decoding, based on the information regarding the size of the one or more blocks, setting a block group including one or more blocks based on the information regarding the size of the one or more blocks, and accessing a memory by the block group to perform a parallel-pipeline decoding process by the block group.

Enhanced data processing apparatus employing multiple-block based pipeline and operation method thereof

An image correction method includes: obtaining information regarding at least one of brightness and colors of pixels constituting an input image, the input image comprising a plurality of regions classified according to whether the at least one of the brightness and the colors of the pixels are substantially uniformly distributed in a corresponding region; determining a weight with respect to at least one pixel based on the obtained information; and correcting the input image with respect to the at least one pixel based on the determined weight.

Method and apparatus for correcting image based on distribution of pixel characteristic

A method and apparatus for converting a resolution of a block-based image. The method includes: dividing a low resolution image frame into a plurality of blocks, each block having a predetermined size; performing motion prediction in a sub-pixel unit of each of the divided blocks and determining a motion vector in the sub-pixel unit; dividing the motion vector of the sub-pixel unit into a first motion vector having an integer pixel unit and a second motion vector having the sub-pixel unit; determining at least one low resolution reference block corresponding to each of the divided blocks by using the first motion vector having the integer pixel unit; converting each of the divided blocks into high resolution block by using the second motion vector having the sub-pixel unit and the one low resolution reference block; and generating a high resolution image frame by using each of the converted high resolution blocks.

Method and apparatus for converting resolution of block based image

The method for encoding data includes: receiving data; determining one quantizer from among a plurality of quantizers having a same quantization step size and different offset values; and transmitting an indicator and a quantized coefficient related to the determined quantizer. The method for decoding data includes: receiving an indicator and a quantized coefficient related to a quantizer; determining one de-quantizer from among a plurality of de-quantizers by using the indicator; and acquiring reconstructed data by de-quantizing the quantized coefficient by using the determined de-quantizer.

Method and apparatus for encoding and decoding data

A driver for driving a lens holder mounted on at least a part of an optical system, comprises a pair of inner rods, and a pair of outer rods. The driver can be employed in an optical pickup and similar devices, and particularly in an optical pickup of a portable disk player or a disk player of a car which is usually subjected to severe external impact and demands for a lower power consumption.

Growing community of inventors

Suwon-si, South Korea

Chang-su Han