PATENT CLAIM ANALYSIS

Application Number: 15891763
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["375", "240020"]

Abstract:
Reference prediction mode values, also referred to as most probable modes, usable for encoding or decoding of a prediction mode related to a current coding unit, are derived. First and second reference prediction mode values are derived (S 402 ) from respective prediction modes of at least two neighbouring coding units of the current coding unit. The first and second reference prediction modes are different. A third reference prediction mode value is derived (S 403 ) from the first and second reference prediction mode values. The third reference prediction mode is different from each of said first and second reference prediction mode values. By deriving three MPMs instead of two for comparison with the prediction mode of the current coding block the coding efficiency is improved. This is due to the increase in the probability that the prediction mode of the current coding block corresponds to one of the derived most probable modes.

Claim (Index 19):
A device for decoding a mode value representing an intra prediction mode for a current unit to be decoded, the device comprising:\n means for selecting, based on a flag signalling that the mode value for the current unit is equal to one of first, second and third reference intra prediction mode values, a process to apply to decoding the mode value for the current unit, wherein the process is selected from among at least first and second decoding processes, and wherein the first decoding process is a process in a case where the mode value for the current unit is equal to one of the first, second and third reference intra prediction mode values; and means for deriving the first, second and third reference intra prediction mode values to decode the mode value for the current unit from respective intra prediction modes of at least two neighbouring units of the current unit, wherein the number of the reference intra prediction mode values, to decode the mode value for the current unit, is three, wherein, deriving the first, second and third reference intra prediction mode values comprises checking whether the respective intra prediction modes of said at least two neighbouring units are the same or different and, if the respective intra prediction modes are different, setting the first reference intra prediction mode value to a mode value corresponding to one of said respective intra prediction modes, setting the second reference intra prediction mode value to a mode value corresponding to another of said respective intra prediction modes, and if neither of said first and second reference intra prediction mode values corresponds to the planar prediction mode, setting the third reference intra prediction mode value to a mode value corresponding to the planar prediction mode.

Metadata:
- Claim Count in Document: 65.0
- Percentile: 88.0
- Lexical Diversity: 2.35714
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14344315', '15008277', '14365663', '15460558', '13674646']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4581810190521689
- 35 USC 102 Novelty (BERT): 0.6051140718484249
- Combined Prediction Score: 0.4728743243317945
- Mean Citation Score: 337.99187
- Max Citation Score: 539.25494
- Similarity Product: 468.357279822675

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