Patent application number | Description | Published |
20140348242 | IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, AND METHOD AND PROGRAM THEREFOR - In disparity-compensated prediction, the precision of prediction vectors is improved even if a prediction method different from disparity-compensated prediction is utilized for blocks around a block to be coded. An image coding apparatus ( | 11-27-2014 |
20150063468 | IMAGE CODING DEVICE, IMAGE DECODING DEVICE, IMAGE CODING METHOD, IMAGE DECODING METHOD, AND PROGRAM - An improvement in efficiency in an image decoding process is intended. An image coding device codes a texture image and a depth image. In the coding, the image coding device performs coding of the texture image by using depth information and coding of the texture image without using the depth information while following a coding control parameter. Further, the image coding device codes use result information that indicates whether or not the depth information is used in coding the texture image. An image decoding device decodes the texture image and the depth image. In the decoding, the image decoding device decodes the depth image in a case where decoded use result information indicates that the depth information is used and skips a decoding process of the depth image in a case where the depth information is not used. | 03-05-2015 |
20150071362 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING METHOD AND PROGRAM - The present invention enables joint use of multiple schemes that are different in relationship of dependency between viewpoint images and depth images in encoding and decoding for encoding or decoding of viewpoint images and depth images. An image encoding device determines one of encoding scheme having different reference relationships between viewpoint images and depth images at intervals of a predetermined encoding scheme change data unit and encodes viewpoint images and depth images with the determined encoding scheme. The image encoding device inserts inter-image reference information indicating the reference relationships between the viewpoint images and depth images in encoding into an encoded data sequence. The image decoding device determines a decoding scheme and an order of decoding in accordance with the reference relationships indicated by the inter-image reference information and decodes the viewpoint images and depth images with the determined decoding scheme and in the determined order of decoding. | 03-12-2015 |
20150146786 | PREDICTION VECTOR GENERATION DEVICE, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, PREDICTION VECTOR GENERATION METHOD, AND PROGRAM - A prediction vector generation device generating a prediction vector of a disparity vector of a target block in a non-base viewpoint image includes a conversion pixel determination unit determining at least one pixel position in a depth block corresponding to the target block in a depth map corresponding to the non-base viewpoint image, a disparity vector conversion unit calculating a representative value of a depth value of the at least one pixel position determined by the conversion pixel determination unit and converting the representative value into a disparity vector, and a prediction vector determination unit generating the prediction vector of the disparity vector of the target block by using the disparity vector generated by the disparity vector conversion unit. This prediction vector generation device provides good encoding efficiency and suppresses increases in the amount of computation. | 05-28-2015 |
20150256844 | IMAGE DECODING DEVICE AND IMAGE ENCODING DEVICE - A disparity vector generation section generates disparity vectors indicating a part of a disparity between a first layer image and a second layer image different from the first layer image and different part of the disparity based on a code indicating the part of the disparity. A predicted image generation section reads a reference image of a region indicated by the disparity vector generated by the disparity vector generation section from a reference image storage section that stores the reference image and generates a predicted image based on the read reference image. | 09-10-2015 |
20150326866 | IMAGE DECODING DEVICE AND DATA STRUCTURE - Pictures having the same time between a plurality of layers are allocated to the same display time POC. There is provided restriction of coded data in which the same POC is allocated to the pictures of the same time in all the layers, for example, by allowing all of the layers to have the same NAL unit type so that the initialization timings of the POC are the same between the layers, and a management length of the POC and a POC low-order bit are the same between the layers. An RAP picture with the layer ID other than 0 has a slice type other than an intra-slice I_SLICE. | 11-12-2015 |
20150326881 | IMAGE DECODING DEVICE - An image decoding device includes an illumination compensation flag derivation section that derives an illumination compensation flag indicating whether illumination compensation is executed and an illumination compensation section ( | 11-12-2015 |
20160057438 | IMAGE DECODING APPARATUS - An image decoding apparatus includes a unit configured to set an unreferenced region depending on whether information concerning a horizontal direction is defined, out of information indicating the unreferenced region. The image decoding apparatus further includes a unit configured to decode a flag that is to be set depending on whether a loop filter is related as information indicating the unreferenced region. | 02-25-2016 |