PATENT CLAIM ANALYSIS

Application Number: 15768773
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["375", "240120"]

Abstract:
According to the present invention, an image decoding method performed by a decoding device comprises the steps of: deriving a prediction mode of a current block; generating a prediction block of the current block on the basis of the prediction mode of the current block; deriving a neighboring block of the current block; deriving correlation information on the basis of a reconstruction block of the neighboring block and a prediction block of the neighboring block; deriving a modified prediction block of the current block on the basis of the prediction block of the current block and the correlation information; and deriving a reconstruction block of the current block on the basis of the modified prediction block. According to the present invention, a current block can be predicted in consideration of the correlation between a prediction sample and a reconstruction sample of a neighboring block, and a complicated image can be more efficiently reconstructed through the prediction.

Claim (Index 5):
The method of  claim 4 , wherein:\n when the prediction block of the current block comprises I number of samples, the weight per block unit is derived based on an equation as below: \u03b1 = I \u00b7 \u2211 i = 1 I \ue89e \ue89e Rec A \ue8a0 ( i ) \u00b7 Pred A \ue8a0 ( i ) - \u2211 i = 1 I \ue89e \ue89e Rec A \ue8a0 ( i ) \u00b7 \u2211 i = 1 I \ue89e \ue89e Pred A \ue8a0 ( i ) I \u00b7 \u2211 i = 1 I \ue89e \ue89e Pred A \ue8a0 ( i ) \u00b7 Pred A \ue8a0 ( i ) - ( \u2211 i = 1 I \ue89e \ue89e Pred A \ue8a0 ( i ) ) 2 where I denotes a number of samples in the prediction block of the current block, \u03b1 denotes the weight per block unit, RecA(i) denotes an ith reconstructed sample value of a reconstructed block of the neighboring block, and PredA(i) denotes an ith prediction sample value of a prediction block of the neighboring block.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 91.0
- Lexical Diversity: 3.63043
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15758967', '16087963', '15762965', '16332735', '16340617']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5019545801204237
- 35 USC 102 Novelty (BERT): 0.5262863734822036
- Combined Prediction Score: 0.5043877594566017
- Mean Citation Score: 289.1789520000001
- Max Citation Score: 300.8719200000001
- Similarity Product: 188.6537518381692

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