摘要:
A method and apparatus are disclosed for interpolating an object reference pixel in an annular image. In one embodiment, reference pixels selected based on a distorted shape of the annular image are arranged in a direction of distortion of the annular image and an object reference pixel in the annular image is interpolated based on the selected reference pixels.
摘要:
A method and apparatus are provided for interpolating an object reference pixel in an annular image and a method and apparatus for encoding/decoding an annular image. The method of interpolating a reference pixel in an annular image comprises selecting a plurality of reference pixels arranged in the direction of a distortion of the annular image and interpolating the object reference pixel based on the selected plurality of reference pixels.
摘要:
Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting a first picture type indicating whether a current picture of the multi-view video is a reference video type for inter prediction; interpreting a block type indicating a method of determining a motion vector of a current block of the current picture; interpreting a chrominance compensation value of the current block based on at least one of the interpreted first picture type and the interpreted block type; and performing chrominance compensation on the current block by using the interpreted chrominance compensation value.
摘要:
Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting from a received bitstream a block type indicating a method of determining a motion vector of a current block present in a current picture of the multi-view video; interpreting a first picture type indicating whether the current picture is a reference picture type for inter prediction; interpreting additional information of the current picture based on at least one of the interpreted first picture type and the interpreted block type; and reconstructing the current block and the current picture by using the additional information.
摘要:
Provided are method and apparatus for transmitting and receiving a multimedia streaming service via a network. The method of providing a multimedia streaming service includes: dividing encoded data of a video including at least one of a two-dimensional (2D) video and a three-dimensional (3D) video into fragments; determining at least one of 3D signaling information for each fragment and relationship information to be used when the video refers to other videos; and continuously transmitting the fragments including the property information regarding the fragments and encoded video data.
摘要:
Scalable multi-view image encoding and decoding methods and apparatuses are provided. The scalable multi-view image encoding and decoding methods and apparatuses filter multi-view images input from a plurality of cameras in spatial-axis and in temporal-axis directions using motion compensated temporal filtering (MCTF) or hierarchical B-pictures and scalably code the filtered multi-view.
摘要:
Disclosed is a method and apparatus for illumination compensation in a multi view video coding. The method includes deriving a predicted illumination compensation value of the current block by using information on neighbor blocks of the current block when a current block performing illumination compensation is in a skip mode; setting the current block not to perform the illumination compensation when the derived predicted illumination compensation value is 0 and setting the current block to perform the illumination compensation when the derived predicted illumination compensation value is not 0.
摘要:
An improved grid moving method of an object image and an apparatus using the same which are capable of reducing the amount of information with respect to the image of an object by moving the grid in accordance with a position in which an image of the object having shape information exists, which include the steps of: a moving step for forming a grid over an image of an object having shape information, segmenting the image into a plurality of unit regions, and moving the formed grid; a judging step for judging an amount of the information at each position to which the grid is moved in the moving step; a detecting step for detecting a position at which the amount of the information is reduced; a compaction step for reforming the grid in accordance with the position detected in the detecting step and for coding the image of the object existing in unit regions of the reformed grid; and a motion estimation step for reforming the grid in accordance with the position detected in the detecting step and for estimating the motion of the image of the object in the unit regions in which the image of the object exists among the unit regions segmented by the reformed grid.
摘要:
A method for transmitting stereoscopic images using a variety of transport protocols is provided. To this end, a stereoscopic image packet is defined that comprises a stereoscopic packet header and a stereoscopic video packet header. The defined stereoscopic packet header and stereoscopic video packet header are used to transmit metadata needed for transmission of stereoscopic images. By doing so, it is possible to ensure compatibility with a variety of transport protocols.
摘要:
A water ring encoding method of processing an initial data set, such as an image frame, is disclosed having a writing step and an encoding step. The initial data set is organized with at least one initial origin enveloped by a plurality of nested initial environs successively surrounding each other in the initial data set. The writing step includes writing a portion of data from the initial data set into a scanned data string, by starting the writing of the portion of the data from the initial data set into the scanned data string at the RC grouping corresponding to the initial origin (initial water ring (0)) and by sequentially progressing the writing outwardly from the family of RC groupings corresponding to the nearest nested initial environ (initial water ring (1)) towards the family of RC groupings corresponding to a furthest nested initial environ (initial water ring (n)). The encoding step includes encoding the scanned data string into an encoded data string.