PATENT CLAIM ANALYSIS

Application Number: 15755037
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["375", "240120"]

Abstract:
An intra prediction method according to the present invention comprises the steps of: acquiring information on a luma prediction mode of a current block and information on a chroma prediction mode of the current block from a bit stream; deriving a luma intra prediction mode of the current block on the basis of the information on the luma prediction mode; determining a chroma intra prediction mode of the current block on the basis of information on the luma intra prediction mode and the information on the chroma prediction mode; and generating a chroma prediction sample of the current block on the basis of the chroma intra prediction mode. According to the present invention, it is possible to reflect the difference between the ratio of the width to the height of a luma component and the ratio of the width to the height of a chroma component, and thus to more accurately perform intra prediction in units of samples and improve intra prediction performance.

Claim (Index 11):
The intra-prediction method according to  claim 9 , wherein the chroma intra-prediction mode is determined on the basis of the following table, Luma mode 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Intra(Mode C ) 0 1 2 2 2 2 2 2 2 2 2 4 7 9 11 13 14 16 Luma mode 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Intra(Mode C ) 18 20 22 23 25 27 29 32 34 36 38 40 42 42 42 42 42 42 Luma mode 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Intra(Mode C ) 43 43 44 44 45 45 45 46 46 47 48 49 49 50 50 50 51 51 Luma mode 54 55 56 57 58 59 60 61 62 63 64 65 66 Intra(Mode C ) 52 53 54 54 55 55 55 56 56 57 57 58 58 wherein Luma mode indicates the luma intra-prediction mode and Intra(Mode c ) indicates the chroma intra-prediction mode.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 88.0
- Lexical Diversity: 3.16667
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14000900', '15389712', '15541802', '15790236', '14349992']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5690546421015455
- 35 USC 102 Novelty (BERT): 0.5274047710763236
- Combined Prediction Score: 0.5648896549990234
- Mean Citation Score: 337.899456
- Max Citation Score: 342.5106
- Similarity Product: 216.11085141670705

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