Patent application number | Description | Published |
20090074082 | System And Method Of Error Control For Video Coding - A system and method for video coding include an encoder and decoder. The encoder/decoder respectively include a base layer encoding/decoding apparatus, at least one enhancement layer encoding/decoding apparatus, and an encoder/decoder drift control apparatus. The encoder drift control apparatus is configured to determine the amount of local error drift for the encoder according to local information of the base layer encoding apparatus and the enhancement layer encoding apparatus and control the value of an encoder leaky factor according to the amount of error drift. The decoder drift control apparatus is configured to determine the amount of local error drift for the decoder according to local information of the base layer decoding apparatus and the enhancement layer decoding apparatus and control a decoder leaky factor according to the amount of error drift. | 03-19-2009 |
20100208814 | Inter-frame prediction coding method and device - An inter-frame prediction coding method is disclosed, which comprises: an encoder determines an encoding mode and performs encoding by comparing the obtained template matching motion vector and motion vector prediction value of the current block; a decoder receives the bitstream from the encoder, and determines a decoding mode and performs decoding by comparing the obtained template matching motion vector and motion vector prediction value of the current block. Inter-frame prediction encoding device and decoding device are also disclosed. With the method and device of the embodiments of the present invention, code rate can be saved during inter-frame prediction. | 08-19-2010 |
20100272183 | Inter-frame prediction coding method, device and system - Inter-frame prediction coding method, device and system are provided. The inter-frame prediction coding method includes: calculating distortions between a template area of current encoding block and each of M matching templates in L reference frames, to determine M offset vectors; acquiring M hypothesis prediction values of the encoding block to which the M matching templates correspond according to the determined M offset vectors, and calculating the template matching prediction value of the current encoding block according to the M hypothesis prediction values; comparing the template matching prediction value and original value of the current encoding block to acquire the residual of the current encoding block, and encoding the residual. The technical solution improves prediction performance of the video coding system and increases coding efficiency. | 10-28-2010 |
20110188579 | Method, apparatus and system for rapid motion search applied in template switching - A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range. | 08-04-2011 |
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 |
20140254690 | MULTI-VIEW VIDEO CODING AND DECODING METHODS AND APPARATUSES, CODER, AND DECODER - Embodiments of the present invention provide multi-view video coding and coding methods and corresponding apparatuses. The multi-view video coding method includes: minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; calculating disparity information between the front view image and the currently coded view image by using the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and calculating the warped view image of the front view image by using the disparity information and the front view image, and predicting a current view image by using the warped view image as a prediction signal. | 09-11-2014 |
20140254937 | Depth Image Filtering Method, and Depth Image Filtering Threshold Obtaining Method and Apparatus - A depth image filtering method, and a filtering threshold obtaining method and apparatus are provided. The method in the embodiments of the present invention includes: determining, for each pixel in an adjacent area of a pixel of a to-be-filtered depth image, whether the pixel meets a preset condition; determining a set of pixels meeting the preset condition; and determining a pixel value of the pixel of the to-be-filtered depth image according to pixel values of the pixels in the set. According to the embodiments of the present invention, a ringing effect at an edge of a depth image is effectively removed, and discontinuity of the depth image is reduced, thereby improving quality of a video image. | 09-11-2014 |
20150124867 | APPARATUS FOR CODING A BIT STREAM REPRESENTING A THREE-DIMENSIONAL VIDEO - The disclosure relates to an apparatus for coding a bit stream representing a three-dimensional video comprising a sequence of views, wherein a depth map is associated to each view, the depth map comprising depth information of the view with respect to a position to the camera capturing the view, the apparatus comprising: a partitioner for partitioning the depth map into coding units; a determiner for determining a type of model function for each coding unit based on the depth information of the coding unit; a reducer for reducing the coding unit to a single residual value for each segment generated by model function; and a signaler for signaling the model function used and the residual value into the bitstream. | 05-07-2015 |