Abstract:
An encoding/decoding apparatus and method for parallel correction of in-loop pixels based on complexity using a video parameter may include a complexity measuring unit to measure a complexity of an in-loop pixel correction process, using video codec parameter information, in a video codec, and a core allocating unit to evenly distribute jobs associated with the in-loop pixel correction process, using the measured complexity.
Abstract:
An image data decoding apparatus and method are based on an availability of reference data. The image data decoding apparatus may include a core to process decoding of image data, and an availability determining device to receive, from the core, availability verification request information with respect to a reference area of a first frame included in the image data, to determine an availability with respect to the reference area based on the received availability verification request information, and to transmit, to the core, the determined availability. When the reference area is available, the core may process decoding of a second frame based on the reference area.
Abstract:
An apparatus and a method for dividing image data into partition slices and encoding and decoding the image data based on a correlation between macroblocks are provided. The macroblocks may be decoded in parallel and thus, it is possible to improve an overall image quality and processing speed.
Abstract:
A method and apparatus for restoring an image by copying a memory may include determining whether to perform an interpolation operation based on block information, and restoring a current image using a reference image depending on whether to perform the interpolation operation.
Abstract:
A method and apparatus for restoring an image by copying a memory may include determining whether to perform an interpolation operation based on block information, and restoring a current image using a reference image depending on whether to perform the interpolation operation.
Abstract:
An apparatus and a method for dividing image data into partition slices and encoding and decoding the image data based on a correlation between macroblocks are provided. The macroblocks may be decoded in parallel and thus, it is possible to improve an overall image quality and processing speed.
Abstract:
A cache control apparatus and method are provided. The cache control apparatus may include a parameter input unit to receive a first parameter corresponding to a block-level cache in a main memory, a cache index extraction unit to extract a cache index from the first parameter, a cache tag extraction unit to extract a cache tag from the first parameter, and a comparison unit to determine whether a cache hit occurs using the cache index and the cache tag.
Abstract:
Disclosed are an apparatus and method of lossless compression and restoration of selective image information. The apparatus of lossless compression of selective image information may compress an uncompressed block image of image information without loss to convert the uncompressed block image into a compressed block image, and store the converted compressed block image.
Abstract:
A method, medium and system for setting a transfer unit in a data processing system. The method comprises setting a transfer unit in a data processing system which repeatedly performs a process of transmitting data stored in a first memory to a second memory in a predetermined transfer unit, processing the transmitted data stored in the second memory, and transmitting the processed data to the first memory. The method includes computing overhead on the data processing system according to the size of each of a plurality of data units available as the transfer unit; and setting a data unit, which corresponds to a minimum overhead from among the computed overheads, as the transfer unit. Accordingly, it is possible to set an optimum transfer unit according to an environment of a data processing system in order to improve the performance of the data processing system.
Abstract:
An apparatus and method for image-compression encoding and decoding using an adaptive transform in which, where different transform coefficients are outputted in accordance with a change of the transform direction order for an input image signal block, encoding and decoding procedures are conducted, based on the transform direction order selected in accordance with the characteristics of the input image signal block. In accordance with the present invention, an orthogonal transform and a inverse orthogonal transform for blocks are controlled, based on a determination made about whether signals within a block, to be currently encoded, have a higher correlation in a vertical direction or in a horizontal direction, using information about blocks encoded or both information about blocks encoded and information about the current block. In accordance with the present invention, the orthogonal transform is conducted in a direction associated with a higher correlation and then in a direction associated with a lower correlation. The inverse orthogonal transform is conducted in the order inverse to that of the orthogonal transform. Accordingly, the present invention provides an enhancement in compression coding efficiency.