Abstract: An image processing device is provided that includes an image acquisition unit that obtains video data that includes a plurality of consecutive frames, and also obtains image data that correspond to some of the frames and have a higher spatial resolution than the frames. The image processing device also includes a super resolution processing unit that uses a plurality of the frames to perform super resolution processing on the frames, and that generates super resolution images that correspond to the frames. The image processing device further includes a motion estimation unit that uses the video data to detect a motion vector between the super resolution images and an image generation unit that, based on the super resolution images corresponding to the image data and on the motion vector, generates motion compensated image data that corresponds to the frames.

Abstract: In a picture information coding device for outputting picture compression information based on an AVC encoding scheme, optimum reference relationships in a GOP structure including hierarchical B pictures can be obtained and random access from an I picture that is not an instantaneous decoding refresh picture can be performed. When multiple-frame prediction is performed, with a memory management control operation command generation unit (13), a reference B picture that exists between a picture and a P picture or I picture is registered as a long-term reference picture using a memory management control operation command to manage a picture in a decoded picture buffer. The reference B picture is placed as the first in a reference picture list using a reference picture list reordering command when a B picture that exists between the P picture or I picture and the reference B picture is processed.

Abstract: An image decoding method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes scaling, when a reference field has a different parity from a current field for motion compensation and when the decoded image signal is in a format in which the number of chroma pixels is vertically different from the number of luma pixels, a chroma motion vector of the chroma signal according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.

Abstract: The present invention relates to an image processing apparatus and method that allow the generation of a high-accuracy prediction image without increasing the processing load. A difference image between motion compensation images MC0 and MC1 extracted from different reference frames is calculated. A low-pass filter is applied to the difference image, and the gain of an obtained image is adjusted. A high-pass filter is applied to an image obtained by the application of a low-pass filter, and the gain of an obtained image is adjusted. An image obtained by adding the output of a gain adjustment circuit 53 and the output of a gain adjustment circuit 55 is added with the motion compensation image MC0, and a prediction image is generated. The present invention can be applied to an apparatus that performs prediction encoding, and an apparatus that decodes information encoded through prediction encoding.

Abstract: A decoding method decodes a bit stream in an image decoding apparatus. The method includes receiving a weight parameter that is added to a luma quantization parameter as the bit stream. The method also includes decoding, in a decoding unit in the image decoding apparatus, the bit stream, and generating a luma component of quantized coefficients and a chroma component of quantized coefficients. Further, the method includes performing, in a dequantization unit in the image decoding apparatus, dequantization on the luma component of quantized coefficients using the luma quantization parameter and the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of the luma quantization parameter weighted by an add operation of the weight parameter. In addition, the method includes performing, in a transform unit in the image decoding apparatus, an inverse orthogonal transform.

Abstract: An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

Abstract: There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of the block image data to be filtered, and a filtering unit applies filtering to the block image data to be processed according to the filtering content selected by the controlling unit.

Abstract: An image decoding method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes scaling, when a reference field has a different parity from a current field for motion compensation and when the decoded image signal is in a format in which the number of chroma pixels is vertically different from the number of luma pixels, a chroma motion vector of the chroma signal according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.

Abstract: An image decoding method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes scaling, when a reference field has a different parity from a current field for motion compensation and when the decoded image signal is in a format in which the number of chroma pixels is vertically different from the number of luma pixels, a chroma motion vector of the chroma signal according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.

Abstract: An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

Abstract: An image decoding apparatus for decoding a bit stream includes a decoding unit that decodes the bit stream and generates a chroma component of quantized coefficients. In addition, the image decoding apparatus includes a setting unit that sets a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation that adds a weight parameter. In addition, the image decoding apparatus includes a dequantization unit that performs dequantization on the chroma component of quantized coefficients using the chroma quantization parameter. Further, the image decoding apparatus includes a transform unit that performs an inverse orthogonal transform.

Abstract: An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.

Abstract: An image decoding method includes decoding encoded image data to generate a decoded image signal including a luma signal and a chroma signal. The method further includes scaling, when a reference field has a different parity from a current field for motion compensation and when the decoded image signal is in a format in which the number of chroma pixels is vertically different from the number of luma pixels, a chroma motion vector of the chroma signal according to an accuracy for a luma motion vector of the luma signal so that a reference frame will coincide in phase of the chroma signal with a current frame. The method also includes performing motion compensation of the decoded image signal using the scaled chroma motion vector according to the accuracy of the luma motion vector of the luma signal.

Abstract: A decoding method decodes a bit stream in an image decoding apparatus. The method includes decoding, in a decoding unit in the image decoding apparatus, the bit stream, and generating a luma component of quantized coefficients and a chroma component of quantized coefficients. The method also includes performing, in a dequantization unit in the image decoding apparatus, dequantization on the luma component of quantized coefficients and the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation.

Abstract: A method of compression of digital images using a fixed number of bits per block is described. Intra-coding is used for lossless compression of digital images. The image is partitioned into blocks with the same size. The encoder generates a fixed and predetermined number of bits for each block. The encoding process includes gamma conversion applied to the input image to generate data. Additional stages include prediction, quantization, DPCM, entropy coding and refinement.

Abstract: An image decoding apparatus for decoding a bit stream includes a decoding unit that decodes the bit stream and generates a chroma component of quantized coefficients. The image decoding apparatus also includes a dequantization unit that performs a dequantization on the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation. Further, the image decoding apparatus includes a transform unit that performs an inverse orthogonal transform.

Abstract: A decoding method decodes a bit stream in an image decoding apparatus. The method includes receiving a weight parameter that is added to a luma quantization parameter as the bit stream. The method also includes decoding, in a decoding unit in the image decoding apparatus, the bit stream, and generating a luma component of quantized coefficients and a chroma component of quantized coefficients. Further, the method includes performing, in a dequantization unit in the image decoding apparatus, dequantization on the luma component of quantized coefficients using the luma quantization parameter and the chroma component of quantized coefficients using a chroma quantization parameter calculated on the basis of the luma quantization parameter weighted by an add operation of the weight parameter. In addition, the method includes performing, in a transform unit in the image decoding apparatus, an inverse orthogonal transform.

Abstract: The present technique relates to an image processing device and a method therefor allowing rate control to be performed more easily. An image encoding device that encodes image data to generate an encoded stream includes: a setting unit configured to set binary parameters used for defining the size, the accumulated data amount, and the like of a hypothetical decoder defined in the encoded stream obtained by encoding the image data in binary data generated by arithmetic coding; an encoding unit configured to encode image data to generate an encoded stream; and a transmitting unit configured to transmit the binary parameter set by the setting unit and the encoded stream generated by the encoding unit to an image decoding device that decodes the encoded stream via a predetermined transmission path such as a recording medium or a network. The present disclosure can be applied to image processing devices, for example.

Abstract: An image processing apparatus capable of improving image quality, includes a deblocking filter that adjusts a plurality of parameters related to deblocking processing on the basis of activity of an image calculated by an activity calculation section, the total sum of orthogonal transformation coefficients of the image calculated by an orthogonal transformation section, complexity of the image calculated by the rate control unit, or the total sum of prediction errors of the image calculated by a prediction error addition unit.

Abstract: There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of the block image data to be filtered, and a filtering unit applies filtering to the block image data to be processed according to the filtering content selected by the controlling unit.