Abstract: According to one embodiment, a moving image encoding apparatus includes a calculation unit, a selection unit, and a compression unit. The calculation unit calculates, for each unit of processing, amounts of code using plural variable length compression modes, the variable length compression modes having compression rates different from each other. The selection unit selects a compression mode in which an accumulated amount of code is smaller than or equal to a predetermined amount of code, the compression mode being selected from the variable length compression modes and a fixed length compression mode on the basis of the amounts of code calculated for the variable length compression modes and an amount of code obtained when the image data is compressed by the fixed length compression mode. The compression unit compresses the unit of processing of image data by the compression mode selected and generates compressed data.

Abstract: According to one embodiment, a radiation detection data processing apparatus includes a data acquisition unit and a data processing unit. The data acquisition unit acquires a radiation detection data from a detector detecting radiation. The data processing unit generates a compressed data to be used for reconstruction of a tomographic image, compression distortion in the compressed data is nearly uniform independently of a signal value from the radiation detection data.

Abstract: According to one embodiment, an encoding apparatus includes a first quantizer, a second quantizer, a predictor and a calculator. The first quantizer quantizes an input block to obtain a first quantized block. The second quantizer quantizes a reference pixel to obtain at least one quantized value. The predictor predicts each target pixel in the first quantized block using the at least one quantized value and a quantized value of a pixel that is to be decoded preceding the target pixel in decoding order in the first quantized block to obtain a second quantized block. The calculator calculates a difference between the first quantized block and the second quantized block.

Abstract: According to one embodiment, a radiation detection data processing apparatus includes a data acquisition unit and a data processing unit. The data acquisition unit acquires a radiation detection data from a detector detecting radiation. The data processing unit generates a compressed data to be used for reconstruction of a tomographic image, compression distortion in the compressed data is nearly uniform independently of a signal value from the radiation detection data.

Abstract: According to one embodiment, an encoding apparatus includes a first quantizer, a second quantizer, a predictor and a calculator. The first quantizer quantizes an input block to obtain a first quantized block. The second quantizer quantizes a reference pixel to obtain at least one quantized value. The predictor predicts each target pixel in the first quantized block using the at least one quantized value and a quantized value of a pixel that is to be decoded preceding the target pixel in decoding order in the first quantized block to obtain a second quantized block. The calculator calculates a difference between the first quantized block and the second quantized block.

Abstract: A fade detection unit performs fade detection, and in a case where a judgment of fade-in has been made, an encoding control unit notifies a motion detection unit to perform encoding in a reverse order to a display order. The fade detection unit performs the fade detection, and in the case where the judgment of the fade-in or fade-out has been made, the encoding control unit notifies the motion detection unit to perform encoding while importance is attached to a prediction from an image having a larger information amount in a B picture.

Abstract: According to one embodiment, an image transmission apparatus includes a video processor. The video processor is configured to generate video data by applying one of first to fourth video processing to a predetermined unit image, the first to fourth video processing being (a) the first video processing of generating the predetermined unit image as the video data, (b) the second video processing of generating the video data by compressing the predetermined unit image, (c) the third video processing of performing a subsampling processing of performing pixel-separation of the predetermined unit image into subsampled images in accordance with pixel phases, and of generating each of the subsampled images as the video data, and (d) the fourth video processing of performing the subsampling processing of separating the predetermined unit image into the subsampled images in accordance with pixel phases, and of generating the video data by compressing each of the subsampled images.

Abstract: According to one embodiment, a moving image encoding apparatus includes a calculation unit, a selection unit, and a compression unit. The calculation unit calculates, for each unit of processing, amounts of code using plural variable length compression modes, the variable length compression modes having compression rates different from each other. The selection unit selects a compression mode in which an accumulated amount of code is smaller than or equal to a predetermined amount of code, the compression mode being selected from the variable length compression modes and a fixed length compression mode on the basis of the amounts of code calculated for the variable length compression modes and an amount of code obtained when the image data is compressed by the fixed length compression mode. The compression unit compresses the unit of processing of image data by the compression mode selected and generates compressed data.

Abstract: A motion picture encoding method includes searching for a first motion vector between an object block of an input motion picture and a reference image for a frame-based prediction mode, searching for a second motion vector between the object block and the reference image for a field-based prediction mode, generating a first and second predictive residuals in accordance with the first and second motion vector, extracting a first and second feature quantities indicating a first and second similarity between lines of the first and second predictive residual, selecting the frame-based prediction mode in a case where the first similarity is larger than the second similarity based on the first and the second feature quantity, selecting the field-based prediction mode in a case where the second similarity is larger than the first similarity, and inter-frame-coding the input motion picture in accordance with the selected prediction mode.

Abstract: According to one embodiment, an information encoding method generates main image information from input image information by applying noise reduction processing to the input image information, estimates noise image information included in the input image information from the input image information and the main image information to generate first model information corresponding to the noise image information, corrects a parameter which does not satisfy a predetermined condition of a plurality of parameters included in the first model information to generate second model information including the plurality of parameters which reflect the correction, encodes the main image information to generate encoded image information, and generates encoded information including the encoded image information, the first model information, and the second model information.

Abstract: A fade detection unit performs fade detection, and in a case where a judgment of fade-in has been made, an encoding control unit notifies a motion detection unit to perform encoding in a reverse order to a display order. The fade detection unit performs the fade detection, and in the case where the judgment of the fade-in or fade-out has been made, the encoding control unit notifies the motion detection unit to perform encoding while importance is attached to a prediction from an image having a larger information amount in a B picture.

Abstract: A motion picture encoding method includes searching for a first motion vector between an object block of an input motion picture and a reference image for a frame-based prediction mode, searching for a second motion vector between the object block and the reference image for a field-based prediction mode, generating a first and second predictive residuals in accordance with the first and second motion vector, extracting a first and second feature quantities indicating a first and second similarity between lines of the first and second predictive residual, selecting the frame-based prediction mode in a case where the first similarity is larger than the second similarity based on the first and the second feature quantity, selecting the field-based prediction mode in a case where the second similarity is larger than the first similarity, and inter-frame-coding the input motion picture in accordance with the selected prediction mode.