Patent application number | Description | Published |
20080225949 | VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM - A video processing system is provided with video encoding apparatus | 09-18-2008 |
20090274216 | DYNAMIC IMAGE ENCODING DEVICE, DYNAMIC IMAGE ENCODING METHOD, DYNAMIC IMAGE ENCODING PROGRAM, DYNAMIC IMAGE DECODING DEVICE, DYNAMIC IMAGE DECODING METHOD, AND DYNAMIC IMAGE DECODING PROGRAM - The object is to compensate motion at high precision even for an image having different characteristics in the horizontal direction and vertical direction, while decreasing code quantity of filter coefficients when a reference image with the fractional image accuracy is generated using a filter of each frame and is encoded and decoded with compensating motion. A video encoding device | 11-05-2009 |
20090285302 | MOVING PICTURE ENCODING APPARATUS AND METHOD, MOVING PICTURE DECODING APPARATUS AND METHOD - A prediction mode is selected in accordance with a type of a moving picture. When an interframe prediction mode is selected as the prediction mode, a motion vector for the moving picture is detected. Motion compensation for the moving picture is performed based on the type of the moving picture, the prediction mode, and the motion vector. A spatial prediction section performs a spatial prediction for the moving picture based on the type of the moving picture and the prediction mode. An orthogonal transformation for a predictive residue signal obtained as a difference between the picture signal obtained by the motion compensation or the spatial prediction and the input picture signal is performed, based on the type of the moving picture and the prediction mode. Variable length encoding for the picture data after the orthogonal transformation is performed, based on the type of the moving picture and the prediction mode. | 11-19-2009 |
20090310675 | VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM - A video processing system is provided with video encoding apparatus | 12-17-2009 |
20100008592 | IMAGE SIGNAL TRANSFORMING AND INVERSE-TRANSFORMING METHOD AND COMPUTER PROGRAM PRODUCT WITH PRE-ENCODING FILTERING FEATURES - An aspect of an image signal transforming method is a method of generating one or more transformed samples from a plurality of input samples, which includes a first transformed sample generating step of performing a first filtering process by a filter, on at least one first input sample (an input sample from a terminal) out of a plurality of first input samples used for generation of a first transformed sample, to generate first filtered data, and performing a first arithmetic process (subtraction by a subtractor) on another first input sample not used for the generation of the first filtered data (an input sample from another terminal), and the first filtered data generated, to generate the first transformed sample. | 01-14-2010 |
20100054338 | IMAGE DECODING APPARATUS, IMAGE DECODING PROGRAM, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE ENCODING PROGRAM, AND IMAGE ENCODING METHOD - An image decoding apparatus has a video data decoder for receiving and decoding encoded video data to acquire a plurality of reconstructed images; a subsidiary data decoder for receiving and decoding subsidiary data to acquire subsidiary motion information; and a resolution enhancer for generating motion vectors representing time-space correspondences between the plurality of reconstructed images, based on the subsidiary motion information acquired by the subsidiary data decoder, and for generating a high-resolution image with a spatial resolution higher than that of the plurality of reconstructed images, using the generated motion vectors and the plurality of reconstructed images acquired by the video data decoder. | 03-04-2010 |
20100098174 | VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM - A video processing system | 04-22-2010 |
20100150239 | MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE ENCODING METHOD, MOVING PICTURE ENCODING PROGRAM, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM - In a moving picture encoding apparatus | 06-17-2010 |
20100296744 | IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, IMAGE ENCODING PROGRAM, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND IMAGE DECODING PROGRAM - The image encoding apparatus of one embodiment of the present invention comprises a coding mode determination unit, a prediction image generation unit, a storage unit, and an encoding unit. The coding mode determination unit determines a coding mode relating to which of the first image prediction processing or second image prediction processing is used for generating prediction image of a partial area of input images. The prediction image generation unit extracts the prediction assist information by the first image prediction processing and generates a prediction image based on the prediction assist information. The storage unit stores the reproduced image that is based on the prediction image. The encoding unit generates a bit stream comprising data obtained by encoding the coding mode information and prediction assist information. | 11-25-2010 |
20110019744 | VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING PROGRAM, VIDEO DECODING PROGRAM, VIDEO ENCODING APPARATUS, AND VIDEO DECODING APPARATUS - In a video encoding method according to the present invention, an encoding mode controller | 01-27-2011 |
20110058611 | VIDEO ENCODING APPARATUS, VIDEO ENCODING METHOD, VIDEO ENCODING PROGRAM, VIDEO DECODING APPARATUS, VIDEO DECODING METHOD AND VIDEO DECODING PROGRAM - In the motion compensation prediction unit | 03-10-2011 |
20110081085 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND STORAGE MEDIUM - An image processing device includes: processing pixel group determination unit that determines a to-be-processed pixel group from a plurality of frame images of picture signals input based on a first predetermined rule and that determines a processed pixel group from the processed frame image stored based on a second predetermined rule; frequency component processing unit that extracts at least a temporal frequency component from the to-be-processed pixel group and the processed pixel group, that executes predetermined coefficient processing on a temporal high-frequency component of the temporal frequency component and that acquires the executed to-be-processed pixel group; processing completion frame generation unit that generates a processing completion frame image from the executed to-be-processed pixel group; and image output unit that outputs the processing completion frame image and that stores the processing completion frame image in the processed frame storage unit, in which the frequency component processing unit prevents the predetermined coefficient processing from being executed on a component having low sensitivity in visual characteristic included in the temporal high-frequency component. | 04-07-2011 |
20110222601 | MOVING IMAGE ENCODING AND DECODING SYSTEM - A moving image encoding and decoding system reduces compressed moving picture data amounts by producing a prediction signal suitable for moving pictures including dynamic textures. The system includes a moving picture encoding device | 09-15-2011 |
20110228841 | IMAGE PROCESSING DEVICE, METHOD, AND PROGRAM, DYNAMIC IMAGE ENCODING DEVICE, METHOD, AND PROGRAM, DYNAMIC IMAGE DECODING DEVICE, METHOD, AND PROGRAM, AND ENCODING/DECODING SYSTEM AND METHOD - In order to preserve edges of a picture and to suppress a residual distorted signal in a reproduced picture, a picture processing device (in-loop filter) includes a first filter unit for applying a first filter to an input picture to generate a first filter picture, an attribute information generator which generates an attribute value indicating whether or not to apply a second filter to each pixel of the generated first filter picture, and a second filter unit for applying the second filter to a target pixel of the first filter picture selected on the basis of the attribute value of each pixel of the generated first filter picture, to generate a second filter picture. | 09-22-2011 |
20110228853 | MOVING IMAGE ENCODING AND DECODING SYSTEM - A moving image encoding and decoding system may include a moving image encoding device and a moving image decoding device that provides motion vector prediction and encoding of a difference motion vector even when a block serving as a candidate of motion vector prediction does not have significant motion information. The moving image encoding device | 09-22-2011 |
20110249738 | MOVING IMAGE ENCODING APPARATUS, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE ENCODING METHOD, MOVING IMAGE DECODING METHOD, MOVING IMAGE ENCODING PROGRAM, MOVING IMAGE DECODING PROGRAM, AND MOVING IMAGE ENCODING/ DECODING SYSTEM - In order to improve the encoding efficiency while avoiding an increase in the size or memory band of a frame memory and having adaptability in the encoding/decoding processing of a moving picture, a bit length extension converter converts a target picture having a bit length N into an extended target picture having a bit length M, a compressor encodes the converted picture, and an expander restores the encoded picture. Then, a bit length reduction converter converts the picture into a reproduction picture having a bit length L smaller than the bit length M, and this reproduction picture is stored in a frame memory as a reference picture. | 10-13-2011 |
20110286679 | IMAGE ENCODING/DECODING SYSTEM - A picture prediction encoding device includes: a region division unit for dividing an input picture into a plurality of blocks; a prediction signal generation unit for generating a prediction signal with respect to a pixel signal that is included in a subject block to be processed among the blocks; a residual signal generation unit for generating a residual signal between the pixel signal of the subject block and the generated prediction signal; a signal encoding unit for generating a compressed signal by encoding the residual signal; and a storage unit for decompressing the compressed signal and storing the decompressed signal as a reproduced pixel signal. The prediction signal generation unit is configured to sub-divide the subject block into a plurality of small regions, at least one of the small regions is non-square, and a length of a first side of the non-square small region is longer than a length of a second side that is different from the first side. | 11-24-2011 |
20110299788 | IMAGE ENCODING AND DECODING DEVICE - A picture encoding device ( | 12-08-2011 |
20120013717 | MOVING PICTURE DECODING METHOD, MOVING PICTURE DECODING PROGRAM, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE ENCODING METHOD, MOVING PICTURE ENCODING PROGRAM, AND MOVING PICTURE ENCODING APPARATUS - A moving picture decoding method of an embodiment according to the present invention is a moving picture decoding method for decoding encoded data of an interlaced scanned picture including Top field and Bottom field, and the method includes a stereo information acquisition step for acquiring stereo information indicating whether Top field and Bottom field are two pictures forming a stereo picture from the encoded data, a decoding step for decoding two fields corresponding to each other from the encoded data and generating two decoded fields, and an output step for outputting the two decoded fields. In the output step, the stereo information is referred to and the two decoded fields are outputted simultaneously. | 01-19-2012 |
20120020574 | VIDEO EVALUATION APPARATUS, SPATIO-TEMPORAL FREQUENCY ANALYZING APPARATUS, VIDEO EVALUATION METHOD, SPATIO-TEMPORAL FREQUENCY ANALYZING METHOD, VIDEO EVALUATION PROGRAM, AND SPATIO-TEMPORAL FREQUENCY ANALYZING PROGRAM - A video evaluation apparatus and video evaluation method capable of appropriately evaluating a video including of a plurality of frame images, using an objective standard. A reference characteristic, which is a predetermined spatio-temporal frequency characteristic about a video, is stored, and a video characteristic analyzer calculates a spatio-temporal frequency characteristic of a target video including a plurality of frame images. Then a video evaluation determiner calculates an evaluated value of the target video, based on a relative relation between the calculated spatio-temporal frequency characteristic and the stored reference characteristic. | 01-26-2012 |
20120039394 | DYNAMIC IMAGE ENCODING DEVICE, DYNAMIC IMAGE DECODING DEVICE, DYNAMIC IMAGE ENCODING METHOD, DYNAMIC IMAGE DECODING METHOD, DYNAMIC IMAGE ENCODING PROGRAM, AND DYNAMIC IMAGE DECODING PROGRAM - An object of the present invention is to encode and decode image information more efficiently by generating an appropriate predictive signal. | 02-16-2012 |
20120044994 | IMAGE PREDICTIVE ENCODING AND DECODING DEVICE - An image predictive encoding device can efficiently encode an image, while suppressing an increase in prediction information and reducing the prediction error of a target block. In an image predictive encoding device, according to one embodiment, to produce a prediction signal of a partition in a target region, it is decided whether prediction information of a neighbouring region can be used. When prediction information of the neighbouring region can be used, a region width of the partition where the prediction information of the neighbouring region is used to produce the prediction signal is determined. The prediction signal of the target region is produced from a reconstructed signal based on at least one of the region width, the prediction information of the target region, and the prediction information of the neighbouring region. The prediction information, information identifying the region width, and a residual signal are encoded. | 02-23-2012 |
20120045141 | IMAGE ENCODING APPARATUS AND DECODING APPARATUS - A picture encoding apparatus divides an input picture into a plurality of regions and produces quantized transform coefficients of one of the regions. A zero/non-zero coefficient information encoding unit included in the picture encoding apparatus encodes information representing the respective quantized transform coefficients of the one region as either a zero coefficient or a non-zero coefficient. A non-zero coefficient encoding unit included in the picture encoding apparatus encodes non-zero quantized transform coefficient included among the quantized transform coefficients of the one region. The non-zero coefficient encoding unit is configured to select, from a probability model composed of a plurality of estimated probabilities, an estimated probability used to encode an absolute value of a next non-zero quantized transform coefficient of the one region. The estimated probability is selected from the probability model based on a quantity of already encoded non-zero quantized transform coefficients of the one region. | 02-23-2012 |
20120069905 | MOVING IMAGE ENCODING AND DECODING DEVICE - A moving picture encoding device includes a prediction signal generation method controller that determines, for each of a plurality of target blocks, a processing method. The processing method can be performed on one of a plurality of reference pictures for generating a prediction signal for each respective target block. The prediction signal generation method controller also determines a motion vector and a reference picture for each respective target block by performing motion prediction. The moving picture encoding device also includes a prediction signal generator and an encoder. The prediction signal generator generates the prediction signal for the respective target block by performing processing on the respective reference picture based on the respective processing method, and the encoder encodes information on the respective processing method on each respective reference picture together with a reference list number identifying the respective reference picture and motion vector information of every target block. | 03-22-2012 |
20120121020 | MOTION IMAGE ENCODING APPARATUS, MOTION IMAGE DECODING APPARATUS, MOTION IMAGE ENCODING METHOD, MOTION IMAGE DECODING METHOD, MOTION IMAGE ENCODING PROGRAM, AND MOTION IMAGE DECODING PROGRAM - A motion image decoding apparatus for generating a prediction signal in blocks is provided with a low-resolution block decoder for generating a low-resolution block with a smaller number of pixels than that of a prediction block by decoding encoded data. The motion image decoding apparatus is further provided with an enhanced block generator for enhancing a low-resolution block generated by a decoded low-resolution block to a block with the same number of pixels as that of the prediction block using a decoded image. Furthermore, the motion image decoding apparatus is provided with a block divider for generating plural small blocks by dividing an enhanced block based on a predetermined division rule and a small block predictor for generating a predicted small block of a small block using a decoded image and the plural small blocks. | 05-17-2012 |
20120177126 | MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE ENCODING METHOD, MOVING PICTURE DECODING METHOD, MOVING PICTURE ENCODING PROGRAM, AND MOVING PICTURE DECODING PROGRAM - A moving picture encoding apparatus for dividing a frame image as a coding target in a moving picture signal into plural target regions, detecting motion vectors for the respective target regions, and thereby performing coding based on motion compensation. The moving picture encoding apparatus comprises motion vector prediction means for performing a correction of scaling the motion vector of an adjacent region adjacent to the target region on the basis of the target reference frame image. The motion vector predicting means also performing a determination of an optimum predicted motion vector based on the motion vector of the adjacent region adjacent to the target region and thereby predicting the optimum predicted motion vector after the correction. | 07-12-2012 |
20120269450 | IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD, IMAGE ENCODING PROGRAM, IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND IMAGE DECODING PROGRAM - The image encoding apparatus of one embodiment of the present invention comprises a coding mode determination unit, a prediction image generation unit, a storage unit, and an encoding unit. The coding mode determination unit determines a coding mode relating to which of the first image prediction processing or second image prediction processing is used for generating prediction image of a partial area of input images. The prediction image generation unit extracts the prediction assist information by the first image prediction processing and generates a prediction image based on the prediction assist information. The storage unit stores the reproduced image that is based on the prediction image. The encoding unit generates a bit stream comprising data obtained by encoding the coding mode information and prediction assist information. | 10-25-2012 |
20120320976 | VIDEO ENCODING DEVICE, VIDEO ENCODING METHOD, VIDEO ENCODING PROGRAM, VIDEO DECODING DEVICE, VIDEO DECODING METHOD, AND VIDEO DECODING PROGRAM - A video encoding device including a region division section for dividing a frame image constituting video data into a plurality of regions as encoding target regions, an encoding section for encoding an image of each region, an inverse transformation section and an addition section for generating reproduced image of the encoded image, a storage section for storing reproduced images, a prediction generation section for searching a region which is highly correlated to a reproduced image of a template region, which is adjacent to the region of the encoding target image in a predetermined positional relationship and is a part of the reproduced image, from the reproduced image, and determining a prediction signal based on the searched region and the above-mentioned positional relationship, and a subtraction section for generating a difference signal between the prediction signal and the encoding target image as a signal for encoding. | 12-20-2012 |
20130028322 | MOVING IMAGE PREDICTION ENCODER, MOVING IMAGE PREDICTION DECODER, MOVING IMAGE PREDICTION ENCODING METHOD, AND MOVING IMAGE PREDICTION DECODING METHOD - An object is to improve the quality of a reproduced picture and improve the efficiency of predicting a picture using the reproduced picture as a reference picture. For this object, a video prediction encoder | 01-31-2013 |
20130044813 | MOVING IMAGE PREDICTION ENCODING/DECODING SYSTEM - A moving image encoding/decoding system may include a video predictive encoding device, which may include: an encoding device which encodes each of a plurality of input pictures to generate compressed picture data including a random access picture, and encodes data about display order information of each picture; a restoration device which decodes the compressed picture data to restore a reproduced picture; a picture storage device which stores the reproduced picture as a reference picture; and a memory management device which controls the picture storage device. Following completion of an encoding process of generating the random access picture, the memory management device refreshes the picture storage device by setting every reference picture in the picture storage device, except for the random access picture, as unnecessary immediately before or immediately after encoding a picture with display order information larger than the display order information of the random access picture. | 02-21-2013 |
20130121412 | VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM - A video processing system is provided with video encoding apparatus | 05-16-2013 |
20130216148 | IMAGE PREDICTIVE ENCODING AND DECODING SYSTEM - In image predictive encoding according to an embodiment, one or more motion information sets are derived from plural pieces of motion information stored in a computer readable storage medium. Each of the one or more information sets includes two pieces of motion information between which any one of constituent elements differ in value. A predicted signal of a target region in a picture is generated by motion compensation, using two pieces of motion information in a motion information set selected from the one or more motion information sets. The two pieces of motion information in the selected motion information set are stored in the computer readable storage medium, and are used for generation of a predicted signal of another region. | 08-22-2013 |
20130294517 | PREDICTIVE ENCODING METHOD, PREDICTIVE ENCODING DEVICE, AND PREDICTIVE ENCODING PROGRAM OF MOTION VECTOR, AND, PREDICTIVE DECODING METHOD, PREDICTIVE DECODING DEVICE, AND PREDICTIVE DECODING PROGRAM OF MOTION VECTOR - A predictive coding system can encode motion vectors by determining a motion vector of a target partition in a frame picture of an encoding target; determining a first motion vector predictor candidate from a motion vector or motion vectors of one or more partitions belonging to a left-neighboring region to the target partition; determining a second motion vector predictor candidate from a motion vector or motion vectors of one or more partitions belonging to an above-neighboring region to the target partition; selecting an optimum motion vector predictor and outputting motion vector predictor indication information to specify the selected optimum motion vector predictor, the optimum motion vector predictor selected based on comparison between one or more motion vector predictor candidates including the first motion vector predictor candidate and the second motion vector predictor candidate, and the motion vector of the target partition; and encoding the motion vector predictor indication information. | 11-07-2013 |
20130301708 | IMAGE PREDICTIVE CODING DEVICE, IMAGE PREDICTIVE CODING METHOD, IMAGE PREDICTIVE CODING PROGRAM, IMAGE PREDICTIVE DECODING DEVICE, IMAGE PREDICTIVE DECODING METHOD, AND IMAGE PREDICTIVE DECODING PROGRAM - An image predictive encoding device of an embodiment obtains motion information, for acquiring from a previously-reconstructed reference picture, a signal highly correlated with a pixel signal of a target region serving as an encoding target. The motion information contains prediction modes of candidates for selection, the prediction modes being a uni-prediction using one reference picture and a bi-prediction using two reference pictures. When a prediction mode that is selected from the candidates of the two prediction modes is the uni-prediction, the motion information is obtained from one reference picture set in a single reference picture list used for uni-prediction in which frame numbers of a plurality of reference pictures are registered. At least the prediction mode is encoded as the motion information. | 11-14-2013 |
20130301724 | Image Predict Coding Method, Image Predict Coding Device, Image Predict Coding Program, Image Predict Decoding Method, Image Predict Decoding Device, and Image Predict Decoding Program - A predictive coding system performs predictive encoding by determination of an optimum prediction mode from prediction methods for a pixel signal of a target block. A predicted signal is generated according to the determined mode, and a residual signal is determined. The residual signal and the optimum prediction mode are encoded to generate a compressed signal, which is decoded. The decoded signal is stored as a reconstructed picture sample. During encoding, a candidate prediction mode list is generated that contains elements of optimum prediction modes of previously-reproduced blocks neighboring the target block. A flag indicating whether the list contains an element corresponding to the optimum prediction mode is encoded, and an index to the corresponding element is encoded if the corresponding element is included in the list. The optimum prediction mode can be encoded based on identifying the elements in the list, unless no corresponding element appears on the list. | 11-14-2013 |
20140133557 | IMAGE PREDICTION ENCODING DEVICE, IMAGE PREDICTION DECODING DEVICE, IMAGE PREDICTION ENCODING METHOD, IMAGE PREDICTION DECODING METHOD, IMAGE PREDICTION ENCODING PROGRAM, AND IMAGE PREDICTION DECODING PROGRAM - The image predictive encoding device | 05-15-2014 |
20140241432 | VIDEO PREDICTION ENCODING DEVICE, VIDEO PREDICTION ENCODING METHOD, VIDEO PREDICTION ENCODING PROGRAM, VIDEO PREDICTION DECODING DEVICE, VIDEO PREDICTION DECODING METHOD, AND VIDEO PREDICTION DECODING PROGRAM - A predicted signal generation unit provided in a video predictive encoding device estimates a zero-th motion vector for derivation of a zero-th predicted signal, selects a zero-th motion vector predictor similar to the zero-th motion vector, and generates zero-th side information containing a zero-th motion vector predictor index to identify the motion vector predictor and a motion vector difference determined from the zero-th motion vector and the zero-th motion vector predictor. The video predictive encoding device selects a motion vector for generation of a first predicted signal having a high correlation with a target region, generates first side information containing a first motion vector predictor index to identify the motion vector as a first motion vector predictor, sets the first motion vector predictor to a first motion vector, and combines the zero-th and first predicted signals to generate a predicted signal of the target region. | 08-28-2014 |
20140369616 | IMAGE PREDICTIVE ENCODING AND DECODING SYSTEM - In image predictive encoding according to an embodiment, one or more motion information sets are derived from plural pieces of motion information stored in a computer readable storage medium. Each of the one or more information sets includes two pieces of motion information between which any one of constituent elements differ in value. A predicted signal of a target region in a picture is generated by motion compensation, using two pieces of motion information in a motion information set selected from the one or more motion information sets. The two pieces of motion information in the selected motion information set are stored in the computer readable storage medium, and are used for generation of a predicted signal of another region. | 12-18-2014 |