PATENT CLAIM ANALYSIS

Application Number: 16171834
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["375", "240120"]

Abstract:
The present invention relates to an intra prediction mode mapping method and a device using the method. The intra prediction mode includes: decoding flag information providing information regarding whether an intra prediction mode of a plurality of candidate intra prediction modes for the current block is the same as the intra prediction mode for the current block, and decoding a syntax component including information regarding the intra prediction mode for the current block in order to induce the intra prediction mode for the current block if the intra prediction mode from among the plurality of candidate intra prediction modes for the current block is not the same as the intra prediction mode for the current block. Thus, it is possible to increase the efficiency with which are images are decoded.

Claim (Index 6):
An encoding method of an intra-prediction mode, the method comprising:\n determining and encoding flag information indicating whether one of a candidate intra-prediction modes with respect to a current block and an intra-prediction mode of the current block are identical; when one of a plurality of candidate intra-prediction modes with respect to a current block and an intra-prediction mode of the current block are not identical, encoding a syntax element of remaining intra-prediction mode of the current block including information regarding the intra-prediction mode of the current block; generating a prediction block of the current block based on the intra-prediction mode of the current block; and generating a reconstructed block of the current block based on the prediction block and a residual block of the current block, wherein, the deriving the intra-prediction mode of the current block is performed based on a table comprising intra-prediction mode information, the table mapping intra-prediction modes and index information of the intra-prediction modes, wherein when an intra-prediction mode is a planar mode, the intra-prediction mode is mapped to an index 0, when an intra-prediction mode is a DC mode, the intra-prediction mode is mapped to an index 1, and when intra-prediction modes are directional intra-prediction modes, the intra-prediction modes are mapped to indices 2 to 34 according to directivity of the intra-prediction modes, wherein a codeword length of an index of the candidate intra-prediction modes with respect to the current block is shorter than a codeword length of an index of the remaining intra-prediction mode information, wherein the candidate intra-prediction modes with respect to the current block are modes for predicting luminance information of the current block, wherein chrominance information of the current block is predicted based on intra-prediction mode information according to the predicting luminance information of the current block, and wherein the syntax element of the remaining intra-prediction mode information is a value coded using fixed 5 bits.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 2.42857
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15812567', '15399077', '14368224', '15958452', '14126916']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.556284827696415
- 35 USC 102 Novelty (BERT): 0.6185151558416602
- Combined Prediction Score: 0.5625078605109395
- Mean Citation Score: 509.817868
- Max Citation Score: 547.3644400000002
- Similarity Product: 532.2654083449531

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

Dataset: test