PATENT CLAIM ANALYSIS

Application Number: 15993229
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["375", "240180"]

Abstract:
The present invention relates to a method for decoding a video signal, comprising the steps of: acquiring a transform size flag of the current macroblock from a video signal; checking the number of non-zero transform coefficients at each pixel position in a first transform block which corresponds to the transform size flag; changing a scan order of the first transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients in the first transform block; determining the number of the non-zero transform coefficients at each pixel position in a second transform block, and setting the changed scan order of the first transform block as an initialized scan order of the second transform block; adding the number of the non-zero transform coefficients at each pixel position in the first transform block and the number of the non-zero transform coefficients at each pixel position in the second transform block, and changing the scan order of the second transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients; and decoding the transform coefficients arranged in the scan order changed in the previous step, wherein the first transform block and the second transform block have sizes corresponding to the transform size flag, and are contained in the current macroblock.

Claim (Index 8):
An apparatus for decoding a video signal, the apparatus comprising:\n a transform size determining unit configured to obtain split indication information for a transform block from the video signal based on a specific condition being satisfied, the split indication information indicating whether the transform block is split into four transform sub-blocks, each transform sub-block having a half horizontal size and a half vertical size of the transform block, and to partition the transform block into the four transform sub-blocks based on the split indication information for the transform block having a first value; and a transform decoding unit configured to, based on the split indication information for the transform block having a second value, perform a transform operation on the transform block to obtain pixel values of the transform block, wherein the specific condition includes:\n a current size of the transform block being less than or equal to a maximum transform size, and \n the current size of the transform block being greater than a minimum transform size, and \n wherein the transform size determining unit is further configured to, based on the split indication information having the first value, for each of the four transform sub-blocks, obtain split indication information for a transform sub-block from the video signal, and based on the split indication information for the transform sub-block having the first value, partition the transform sub-block into four transform sub-sub-blocks, and wherein the transform decoding unit is further configured to, based on the split indication information for the transform sub-block having the second value, perform a transform operation on the transform sub-block to obtain pixel values of the transform sub-block.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 3.625
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14711129', '15460013', '13376503', '13551458', '13413472']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4641282346918763
- 35 USC 102 Novelty (BERT): 0.5790802329027459
- Combined Prediction Score: 0.4756234345129633
- Mean Citation Score: 350.41135
- Max Citation Score: 455.542
- Similarity Product: 446.97828993344297

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test