Patent application number | Description | Published |
20090310677 | IMAGE ENCODING AND DECODING METHOD AND APPARATUS - An image encoding apparatus includes a first selector selecting a prediction-order to sub-blocks obtained by further dividing pixel-blocks obtained by dividing a frame of an input-image-signal from predetermined prediction-orders, a second selector selecting, from prediction-modes regulating a manner of referring to an encoded-pixel when a first-prediction-signal of each-sub-block is generated with reference to the encoded-pixel, the number of prediction-modes used in prediction of the first-prediction-signal, a third selector selecting prediction-modes the number of which is the selected number from prediction-modes to use the prediction-modes in prediction of the first-prediction-signal, a generator generating the first-prediction-signal in the selected prediction order by using the selected prediction-modes the number of which is the selected number to generate a second-prediction-signal corresponding to the pixelblock, and an encoder encoding a prediction-residual-error-signal expressing a difference between an image-signal of the pixel-block and the second-prediction-signal to generate encoded data obtained by the prediction-encoding. | 12-17-2009 |
20100118943 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE - An image encoding apparatus includes a multidirectional predicting unit configured to predict a plurality of pixel blocks by using an encoded pixel as a reference pixel according to a plurality of prediction modes having different prediction directions to generate a plurality of first prediction signals corresponding to the pixel blocks obtained by dividing a frame of an input image signal a setting unit configured to set a weighting factor depending on the prediction directions of the plurality of prediction modes and a spatial distance between a prediction pixel in the pixel block and the reference pixel, a weighted average unit configured to calculate a weighted average of the plurality of first prediction signals according to the weighting factor to generate one second prediction signal corresponding to the pixel blocks, and an encoding unit configured to encode a prediction residual error signal representing a difference between an image signal of the pixel block and at least the second prediction signal to generate encoded data. | 05-13-2010 |
20100118945 | METHOD AND APPARATUS FOR VIDEO ENCODING AND DECODING - An video encoding apparatus includes a dividing unit | 05-13-2010 |
20100135389 | METHOD AND APPARATUS FOR IMAGE ENCODING AND IMAGE DECODING - An image encoding apparatus includes a transform/quantization unit configured to perform transform and quantization with respect to a prediction error signal indicative of a difference value between a predicted image signal and an input image signal in order to generate a quantized transform coefficient, a encoding unit configured to perform entropy encoding with respect to the quantized transform coefficient in order to generate encoded data, a derivation unit configured to derive prediction complexity indicative of a degree of complication of the prediction processing, a determination unit configured to determine filtering strength for a locally decoded image signal to become low as the prediction complexity increases, a filter unit configured to perform deblocking filter processing with respect to the locally decoded image signal in accordance with the filtering strength, and a storage unit configured to store the locally decoded image signal after the deblocking filter processing. | 06-03-2010 |
20120121012 | IMAGE CODING METHOD AND IMAGE DECODING METHOD - According to an embodiment, an image coding method includes a transforming and quantizing step of orthogonally transforming and quantizing each of a plurality of blocks as a unit within a target region of an input image to obtain coefficients; and a variable-length coding step of coding a plurality of coefficient strings each having coefficients of same frequency component among the blocks within the target region by using a plurality of variable length coding schemes: The variable-length coding step includes switching among the variable-length coding schemes for each coefficient string. | 05-17-2012 |
20130028328 | IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block. | 01-31-2013 |
20130034166 | IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks. | 02-07-2013 |
20130094581 | MOVING-PICTURE ENCODING APPARATUS AND MOVING-PICTURE DECODING APPARATUS - According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density. | 04-18-2013 |
20130107955 | MOVING-PICTURE ENCODING APPARATUS AND MOVING-PICTURE DECODING APPARATUS | 05-02-2013 |
20130289387 | IMAGE PROCESSING APPARATUS AND MAGNETIC RESONANCE IMAGING APPARATUS - An image processing apparatus according to an embodiment includes a specifying unit and a deriving unit. The specifying unit specifies a fluid region in a plurality of magnetic resonance images that are acquired by applying a labeling pulse to a label region and that are mutually related. The deriving unit derives an index indicating dynamics of a fluid on the basis of the specified fluid region. | 10-31-2013 |
20140010309 | IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - According to one embodiment, disclosed is a method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information. | 01-09-2014 |
20140072237 | ENCODING DEVICE, DECODING DEVICE, ENCODING METHOD, AND DECODING METHOD - According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index. | 03-13-2014 |
20140105295 | MOVING IMAGE ENCODING METHOD AND APPARATUS, AND MOVING IMAGE DECODING METHOD AND APPARATUS - According to one embodiment, there is provided a moving image encoding method for performing an inter prediction. The method includes acquiring first predicted motion information and second predicted motion information from an encoded region including blocks including motion information and generating, if a first condition is satisfied, a predicted image of a target block using one of (1) the first predicted motion information and third predicted motion information, the third predicted motion information being acquired from the encoded region and being different from the first predicted motion information and the second predicted motion information, and (2) one of the first predicted motion information and the second predicted motion information. | 04-17-2014 |
20140169462 | MOVING-PICTURE ENCODING APPARATUS AND MOVING-PICTURE DECODING APPARATUS - According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density. | 06-19-2014 |
20140169463 | MOVING-PICTURE ENCODING APPARATUS AND MOVING-PICTURE DECODING APPARATUS - According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density. | 06-19-2014 |
20140169464 | MOVING-PICTURE ENCODING APPARATUS AND MOVING-PICTURE DECODING APPARATUS - According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density. | 06-19-2014 |
20140177723 | IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block. | 06-26-2014 |
20140177724 | IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block. | 06-26-2014 |
20140177725 | IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block. | 06-26-2014 |
20140185666 | APPARATUS AND METHOD FOR MOVING IMAGE ENCODING AND APPARATUS AND METHOD FOR MOVING IMAGE DECODING - According to certain embodiment, there is provided a moving image encoding apparatus in which a first encoding unit performs a first encoding process on an input image to generate first encoded data and to perform a first decoding process on the first encoded data to generate a first decoded image, a difference calculating unit generates a difference image between the input image and the first decoded image, a first pixel range converting unit converts pixel values of the difference image to be within a first specific range to generate a first converted image, a second encoding unit performs a second encoding process on the first converted image to generate second encoded data, the second encoding process being different from the first encoding process and the first specific range is a range including a range of pixel values that can be encoded by the second encoding unit. | 07-03-2014 |
20140340400 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND STEREOSCOPIC IMAGE DISPLAY DEVICE - According to an embodiment, an image processing device includes a receiver, a determiner, and a generator. The receiver is configured to receive a three-dimensional position in a coordinate system of three-dimensional data including an object. The determiner is configured to determine placement of a three-dimensional pointer having a first 3D shape and a second 3D shape positioned around the first 3D shape so that a position of the first 3D shape corresponds to the received three-dimensional position. The generator is configured to generate a stereoscopic image representing the three-dimensional pointer and the object. | 11-20-2014 |
20150238149 | MAGNETIC RESONANCE IMAGING APPARATUS - A magnetic resonance imaging apparatus includes a controller and a deriving unit. The controller performs first imaging for acquiring first image data on a region including a target and the diaphragm, second imaging for acquiring, with application of motion detection pulses for detecting a respiratory phase, second image data including the target at a first respiratory phase and third image data including the target at a second respiratory phase different from the first respiratory phase, and third imaging for acquiring fourth image data. The deriving unit detects the position of the diaphragm from the first image data and derives a region to which the motion detection pulses are applied. In the performing of the second imaging, the controller detects a respiratory phase by the application of the detection pulses and controls timings at which the second image data and the third image data are acquired. | 08-27-2015 |
20150319445 | ENCODING DEVICE, DECODING DEVICE, ENCODING METHOD, AND DECODING METHOD - According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index. | 11-05-2015 |
20150338489 | IMAGE PROCESSING APPARATUS, MAGNETIC RESONANCE IMAGING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a region of body fluid flowing in a subject from time-series images acquired by scanning an imaging area including a tagged region to which a tagging pulse is applied and imaging the imaging area; generate a plurality of display images in which the detected body fluid region is displayed in a display mode determined based on a positional relation between the body fluid region and a boundary line, the boundary line determined based on the tagged region; and output time-series display images including the plurality of display images to be displayed on a display. | 11-26-2015 |
20150358615 | MOVING-PICTURE ENCODING APPARATUS AND MOVING-PICTURE DECODING APPARATUS - According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density. | 12-10-2015 |