Abstract: An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.

Abstract: An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.

Abstract: An apparatus and method for coding and decoding an image are provided. The apparatus for coding the image includes a spatio-temporal information prediction/compensation unit, a recovered image processor, a residue generator, a quantizer, and an entropy encoder. The spatio-temporal information prediction/compensation unit generates a predicted image by predicting and compensating spatio-temporal information including at least one of temporal prediction information from a current image and a recovered previous image, and spatial prediction information from a recovered current image. The recovered image processor performs a spatio-temporal noise removal process on the recovered current image using the spatio-temporal information, and stores the resulting noise-removed image. The residue generator generates a residue image obtained by subtracting the predicted image from the input image, and the quantizer outputs quantized coefficients by quantizing the residue image.

Abstract: An apparatus and method for encoding and decoding an image are provided. The image decoding method includes (a) decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and (b) decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.

Abstract: An apparatus and method for encoding and decoding an image are provided. The image decoding method includes decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.

Abstract: Provided is a motion compensation method and apparatus. The motion compensation method includes performing register setting for motion compensation of an mth macroblock of a current image, performing prediction for the mth macroblock simultaneously with performing register setting for motion compensation of an (m+1)th macroblock, and performing reconstruction for the mth macroblock based on a prediction result simultaneously with performing prediction for the (m+1)th macroblock. By parallely processing motion compensation on macroblocks, the amount of time required for motion compensation of the macroblocks can be reduced.

Abstract: An apparatus and method for encoding and decoding an image are provided. The image decoding method includes (a) decoding luma blocks according to a predetermined decoding mode of each of the luma blocks, and (b) decoding chroma blocks according to the predetermined decoding mode of each of the luma blocks.

Abstract: A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.

Abstract: A color image and video encoding and/or decoding apparatus, method, and medium using inter-color-component prediction in accordance with an encoding mode are provided.

Abstract: A prediction image generation method and apparatus using a single coding mode for all color components and image and video encoding and decoding methods and apparatuses using the same are provided.

Abstract: An image encoding/decoding system, medium, and method. The image encoding system includes a residue production unit arranged to produce first residues corresponding to differences between color components of a current image and color components of a predicted image, a unit arranged to perform spatial transform and quantization with respect to the first residue of a first color component and perform de-quantization and inverse spatial transform with respect to the quantized first residue of the first color component so as to reconstruct the first residue of the first color component, a residue prediction unit arranged to predict second residues with respect to the first residues of the other color components by using the reconstructed first residue of the first color component, and an encoding unit arranged to encode the first residue of the first color component and the second residues of the other color components.

Abstract: A method and apparatus for encoding and decoding image data. The method of encoding image data includes spatially predicting pixel values of a one-dimensional block of an image using blocks spatially adjacent to the one-dimensional block or temporally predicting the pixel values of the one-dimensional block using a temporally previous frame; transforming and quantizing the pixel values of the one-dimensional block; and generating bit streams for a one-dimensional conversion block when the transformed and quantized one-dimensional block is defined as the one-dimensional conversion block. Therefore, since the method and apparatus encode and decode image data in one-dimensional block units, real-time encoding and decoding can be achieved. In addition, compression efficiency can be enhanced while minimizing visual degradation of image quality.

Abstract: An apparatus and method for encoding and decoding image data. The image data encoding apparatus includes: a transformer transforming pixel values of an image in a time domain into pixel values in a frequency domain; a quantization coefficient determiner determining a quantization coefficient proportional to a number of bits per pixel of the image; a quantization unit quantizing the pixel values transformed by the transformer based on the quantization coefficient determined by the quantization coefficient determiner; and an entropy encoder generating a bitstream of the quantized pixel values.

Abstract: An apparatus and method for spatially predicting image data, an apparatus and method for encoding image data, an apparatus and method for compensating for spatial prediction of image data, and an apparatus and method for decoding image data. The spatial prediction apparatus of image data includes: a spatial prediction unit performing a spatial prediction of pixel values of a current block using pixel values of blocks adjacent to an upper row of the current block. A pipeline process is possible when the spatial prediction is performed, thereby performing real time encoding and decoding.

Abstract: There are provided an apparatus and method for performing dynamic capacitance compensation (DCC) in a liquid crystal display (LCD). The DCC apparatus includes: a first line buffer reading and temporarily storing pixel values of an image for each line; an encoder transforming and quantizing the pixel values stored for each line for each block and generating bit streams; a memory storing the generated bit streams; a decoder decoding the bit streams stored in the memory for the each block and outputting the decoded bit streams; a second line buffer reading and temporarily storing the decoded pixel values for the each block; and a compensation pixel value detector detecting a compensation pixel value for each pixel, from pixel value differences between pixel values of a current frame stored in the first line buffer and pixel values of a previous frame stored in the second line buffer.

Abstract: A variable block transform system, medium, and a system, medium, and method for video encoding/decoding using the variable block transform. The system includes a transform block size determination unit that determines the transform block size for components of an input video based on a format, defining the components, of the input video or characteristics of the components, and a transform coding unit that performs transform coding on each of the color components of the input video according to the determined transform block sizes and outputs transform coefficients.

Abstract: Sensor image encoding and/or decoding systems, media, and methods. The sensor image encoding system may include a first color component interpolation unit transforming a sensor image into a first format image by interpolating a first color component of at least two color components in the sensor image including the at least two color components, in which one pixel has one color component, and an encoding unit generating a bitstream by encoding the first format image. The sensor image decoding system may include a decoding unit receiving a bitstream obtained by encoding a sensor image including the at least two color components, where one pixel has one color component, and restoring a first format image by using at least two color components obtained by decoding the bitstream, and a first color component interpolation unit interpolating at least one color component in the first format image provided from the decoding unit.

Abstract: A color image encoding and/or decoding system, medium, and method using inter-color-component prediction in a frequency domain. To encode an original image, including at least two or more image components, frequency domain transform may be performed with of each component of a color image, color component transform of the frequency domain transform coefficients, in frequency domain, may be performed based on the relationship between transform coefficients of the color image components in order to remove redundant information between color components, performing, and entropy encoding the removed redundant information data. According to the method, medium, and system, a color image or video data can be directly compressed effectively without a conventional color transform process. Furthermore, by using the relationship between image components, redundant information between color components varying with respect to the encoding mode may be removed so that the encoding efficiency can be enhanced.

Abstract: A system, medium, and method encoding and/or decoding image data. The image data encoding may include a transformer transforming pixel values of an image in the time domain to pixel values in the frequency domain, a quantization coefficient determiner determining a quantization coefficient corresponding to the number of bits per pixel of the image by adjusting a quantization variable defined by a user, a quantization unit quantizing the pixel values transformed by the transformer based on the quantization coefficient determined by the quantization coefficient determiner, and an entropy encoder generating a bitstream of the quantized pixel values.

Abstract: A dynamic capacitance compensation (DCC) apparatus and method for a liquid crystal display (LCD). The apparatus includes a one-dimensional block-encoding unit reading pixel values of an image in line units, dividing the pixel values of the read image into one-dimensional blocks in predetermined pixel units, transforming and quantizing the one-dimensional blocks, and generating bit streams; a memory storing the generated bit streams; a one-dimensional block-decoding unit which decodes the bit streams stored in the memory by inverse quantization and inverse transform; and a compensation pixel value-detecting unit detecting a compensation pixel value for each pixel based on a difference between each pixel value of a current frame and each pixel value of a previous frame decoded by the one-dimensional block-decoding unit.