Abstract: The present invention provides a system and method for adaptively compensating distortion caused by video compression, the method first conducts an edge texture detection and block boundary detection to an image, classifies the area where the pixels to be processed is located to determine whether the pixel is located at a ringing artifact prone area or near the block boundary with blocking artifact. Next, according to the area of the pixel to be processed and the degree of distortion, the present invention adaptively compensate the distortion using different filtering strategies, so as to improve image effect of low bit-rate transmission at the display end, so that a real time requirement that playing at a high-definition, and ultra high-definition display is satisfied.

Abstract: Disclosed is a method for edge-directed adaptive image interpolation and a VLSI implementation device thereof. The method comprises: computing gradient magnitude and gradient direction of source image, obtaining edge information by comparing gradient magnitude and local adaptive threshold value, edge direction is vertical direction of the gradient direction; classifying edge direction, and filtering using edge information, so that an image is divided into regular edge region and non-edge region. Regular edge region interpolation is conducted along edge direction, methods of improved bicubic interpolation, parallelogram bicubic interpolation and parallelogram bilinear interpolation based on local gradient information are adopted according to classification of edge information; non-edge region image interpolation is conducted by adopting improved bicubic interpolation method based on local gradient information.

Abstract: The present invention provides a system and method for adaptively compensating distortion caused by video compression, the method first conducts an edge texture detection and block boundary detection to an image, classifies the area where the pixels to be processed is located to determine whether the pixel is located at a ringing artifact prone area or near the block boundary with blocking artifact. Next, according to the area of the pixel to be processed and the degree of distortion, the present invention adaptively compensate the distortion using different filtering strategies, so as to improve image effect of low bit-rate transmission at the display end, so that a real time requirement that playing at a high-definition, and ultra high-definition display is satisfied.

Abstract: Disclosed is a method for edge-directed adaptive image interpolation and a VLSI implementation device thereof. The method comprises: computing gradient magnitude and gradient direction of source image, obtaining edge information by comparing gradient magnitude and local adaptive threshold value, edge direction is vertical direction of the gradient direction; classifying edge direction, and filtering using edge information, so that an image is divided into regular edge region and non-edge region. Regular edge region interpolation is conducted along edge direction, methods of improved bicubic interpolation, parallelogram bicubic interpolation and parallelogram bilinear interpolation based on local gradient information are adopted according to classification of edge information; non-edge region image interpolation is conducted by adopting improved bicubic interpolation method based on local gradient information.