PATENT CLAIM ANALYSIS

Application Number: 15958298
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["375", "240120"]

Abstract:
A prediction direction difference calculating unit derives a prediction direction difference in intra prediction modes of a plurality of reference blocks used for an intra prediction processing of a block to be coded. A most probable mode determining unit and a coding tree selecting unit determine a most probable mode as an intra prediction mode candidate of the block to be coded based on the intra prediction modes of the reference blocks used for deriving the prediction direction difference and the prediction direction difference, and creates a coding tree assigned with a bit stream having a shorter code length than other prediction modes for the determined most probable mode. A variable length coding unit codes information for specifying an intra prediction mode of the block to be coded according to the coding tree.

Claim (Index 1):
A picture coding device which codes a picture signal by use of an intra prediction mode selected from a plurality of intra prediction modes in units of block and codes information for specifying the selected intra prediction mode, the picture coding device comprising:\n an intra prediction mode selecting unit configured to select an intra prediction mode of a block to be coded; an intra prediction mode storing unit configured to store intra prediction modes of coded blocks; a prediction direction difference deriving unit configured to derive intra prediction modes of a plurality of reference blocks used for an intra prediction processing of the block to be coded from the intra prediction mode storing unit, and derive a prediction direction difference indicating a degree of difference in prediction directions of the derived intra prediction modes, and when the prediction direction difference is larger than a predetermined upper limit, replace a value of the prediction direction difference with the upper limit; a coding tree creating unit configured to determine most probable prediction modes as intra prediction mode candidates of the block to be coded based on the intra prediction modes of the reference blocks and the prediction direction difference, and create a coding tree assigned with a bitstream having a shorter code length than other prediction modes for the determined most probable prediction modes; and a coding unit configured to code information for specifying an intra prediction mode of the block to be coded according to the coding tree.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 91.0
- Lexical Diversity: 2.40351
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15807353', '14091018', '15958214', '15958271', '14490286']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5914968154261517
- 35 USC 102 Novelty (BERT): 0.6860198420079727
- Combined Prediction Score: 0.6009491180843338
- Mean Citation Score: 618.329238
- Max Citation Score: 699.47363
- Similarity Product: 687.1675636689586

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