摘要:
Disclosed herein is a method of encoding a video signal, comprising receiving an original video signal; comparing the original video signal with a previously reconstructed signal; generating a correction signal to minimize a sum of a distortion component and a rate component; and entropy-encoding the correction signal that is transmitted to the decoder for video signal reconstruction, wherein the previously reconstructed signal has been inverse-transformed by additionally using a scaling diagonal matrix.
摘要:
There is provided a method for decoding a video signal using a graph-based transform, the method comprising: receiving a template index for a target unit from the video signal, wherein the template index indicates a graph-based transform template to be applied to the target unit; deriving a graph-based transform matrix for the target unit corresponding to the template index; and decoding the target unit based on the graph-based transform matrix.
摘要:
Disclosed herein is a method of processing a video signal, comprising: receiving a video signal comprising an original frame; generating random shift information being used to derive a relative position of the original frame; copying the original frame within an extended frame using the generated random shift information; and encoding the extended frame and the random shift information, wherein a boundary of frames included in the video signal varies for each frame based on the random shift information.
摘要:
Disclosed herein is a method of performing an arithmetic coding for data symbols, comprising: creating an interval for each of the data symbols, the interval being represented based on a starting point and a length of the interval; updating the interval for each of the data symbols; checking whether the updated interval is included in a specific range; and renormalizing the updated interval based on a result of the checking. [Abstract as Published in WO2016/003130 A1] Disclosed is a method for performing arithmetic coding on data symbols, the method comprising the steps of: generating sections for respective data symbols, wherein the sections are expressed based on the starting point and length of the sections; updating the sections for the respective data symbols; checking whether or not the updated sections fall within a predetermined range; and renormalizing the updated sections on the basis of the result of the check.
摘要:
Disclosed herein is a method of encoding a video signal, comprising receiving an original video signal; comparing the original video signal with a previously reconstructed signal; generating a correction signal to minimize a sum of a distortion component and a rate component; and entropy-encoding the correction signal that is transmitted to the decoder for video signal reconstruction, wherein the previously reconstructed signal has been inverse-transformed by additionally using a scaling diagonal matrix.
摘要:
Disclosed herein is a method of processing a graph-based signal using a geometric primitive, comprising: specifying the geometric primitive to be used for calculating an edge weight; obtaining a parameter for each of the geometric primitive; calculating an edge weight for each of edges within the image based on the parameter; and encoding the image based on the edge weight.
摘要:
The present invention provides a method for decoding a video signal using a graph-based transform including receiving a generalized graph signal including a graph parameter set; obtaining a graph-based transform kernel of a transform unit based on the graph parameter set and a predetermined penalty function; and decoding the transform unit using the graph-based transform kernel.
摘要:
The present invention provides a method for performing a graph-based prediction using a graph signal including obtaining a context signal; generating a graph signal based on a graph parameter set; obtaining a graph-based transform matrix based on the graph signal, wherein the graph-based transform matrix includes an eigenvector; obtaining a prediction vector using an optimal transform vector calculated through an optimization function; and generating a prediction signal using the prediction vector, where the optimization function has the context signal, an eigenvalue of a graph Laplacian matrix and the eigenvector as a variable.
摘要:
Disclosed is a method for performing arithmetic decoding on a data symbol, the method comprising the steps of: generating a decoding table index; obtaining, from an ROM table, upper and lower boundary values for the ratio between a point in a section, which is assigned to a symbol, and the length of the section; obtaining an initial value for a bisection search from an RAM table on the basis of the upper and lower boundary values; and searching for a sequence value in the section, wherein the section is determined based on the initial value.
摘要:
Disclosed is a method for performing arithmetic decoding on a data symbol, the method comprising the steps of: generating a decoding table index; obtaining, from an ROM table, upper and lower boundary values for the ratio between a point in a section, which is assigned to a symbol, and the length of the section; obtaining an initial value for a bisection search from an RAM table on the basis of the upper and lower boundary values; and searching for a sequence value in the section, wherein the section is determined based on the initial value.