PATENT CLAIM ANALYSIS

Application Number: 15764685
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["375", "240120"]

Abstract:
An image decoding method according to the present invention comprises the steps of: deriving quantized transform coefficients by unit of sub-blocks in a transform unit on the basis of residual information included in a bitstream; deriving transform coefficients on the basis of the quantized transform coefficients; generating a residual sample on the basis of the transform coefficients; generating a prediction sample on the basis of an inter prediction or an intra prediction; and restoring an image on the basis of the residual sample and the prediction sample. According to the present invention, a quantity of data required for a residual signal can be reduced, and an overall coding efficiency can be improved.

Claim (Index 11):
The decoding method of  claim 10 , wherein the residual information further includes information indicating whether the absolute value of the DC component quantization transform coefficient is larger than 1, and\n the deriving of the quantized transform coefficients by unit of sub-blocks includes deriving the absolute value of the DC component quantization transform coefficient on the basis of the information indicating whether the absolute value of the DC component quantization transform coefficient is larger than 1.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 90.0
- Lexical Diversity: 2.28302
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14140367', '13116716', '10487048', '15067747', '14003686']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5041619836116972
- 35 USC 102 Novelty (BERT): 0.5236447508115515
- Combined Prediction Score: 0.5061102603316826
- Mean Citation Score: 298.830312
- Max Citation Score: 301.10278
- Similarity Product: 202.5618689015961

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test