摘要:
There are provided a method and apparatus for providing reduced resolution update mode for multi-view video coding. A video encoder includes an encoder for encoding a picture using a reduced resolution update mode. The picture is one of a set of pictures corresponding to multi-view content having different view points with respect to a same or similar scene. The picture represents one of the different view points.
摘要:
There are provided methods and apparatus for transform selection in video coding. An apparatus includes a video encoder (300) for encoding at least a block in a picture by selecting a transform (329) to apply to a residue of the block from a set of two or more available transforms(325, 326, 327). The transform is selected based on an inter prediction mode used to predict at least one reference for the block.
摘要:
A method and apparatus are provided for improved video encoding using region of interest information. The apparatus includes an encoder (400) for encoding a plurality of regions of a picture by determining, using region of interest detection, a respective probability that each of the plurality of regions belong to a region of interest, and adaptively controlling a respective quality of each of the plurality of regions based on a value of the> respective probability.
摘要:
There are provided methods and apparatus for efficient first-pass encoding in a multi-pass encoder. An apparatus includes a multi-pass video encoder (300) for performing a first-pass encoding of input image data for at least one picture by sub- sampling at least a portion of the input image data prior to the first-pass encoding. The sub-sampling is at least one of spatial sub-sampling and temporal sub- sampling.
摘要:
There are provided method and apparatus for use in a multi-view video coding system. The apparatus includes an encoder (100) for encoding at least two views corresponding to multi-view video content into a resultant bitstream, wherein the resultant bitstream is encoded to include view specific information. The view specific information indicates a decoding interdependency between at least some of the at least two views.
摘要:
The present invention provides a method, apparatus and system for film grain cache splitting for film grain simulation. In one embodiment of the present invention a method for storing film grain patterns includes storing at least a first portion of film grain patterns in an internal memory and storing at least a second portion of the film grain patterns in an external memory. That is, in the present invention a method for film grain cache splitting for film grain simulation includes splitting the storage of film grain patterns between an internal cache and an external memory. In one embodiment of the present invention, the internal cache is integrated into an integrated circuit chip of a decoder.
摘要:
Creation of a Bit-accurate film grain pattern for blending in an image block occurs by first establishing a set of bit-accurate transformed coefficients. The set of bit-accurate transformed coefficients undergo frequency filtering and a subsequent bit-accurate inverse transformation to yield the film grain pattern. The film grain pattern can then undergo blending with an image block to restore the look of film to the image.
摘要:
Briefly, in accordance with a preferred embodiment of the present principles, simulation of a block of film grain for addition to a block of an image occurs by first establishing at least one image parameter in accordance with at least one attribute of the block. Thereafter, a block of film grain is established in accordance with the image parameter. Deblocking filtering can be applied to the film grain block.