PATENT CLAIM ANALYSIS

Application Number: 16226870
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["375", "240180"]

Abstract:
Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. If there are no non-zero significant-coefficient flags in the group, then the significant-coefficient-group flag is set to zero. The set of significant-coefficient-group flags is encoded in the bitstream. Any significant-coefficient flags that fall within a group that has a significant-coefficient-group flag that is non-zero are encoded in the bitstream, whereas significant-coefficient flags that fall within a group that has a significant-coefficient-group flag that is zero are not encoded in the bitstream.

Claim (Index 1):
A method of encoding significant-coefficient flags for a transform unit, the method comprising:\n encoding significant-coefficient-group flags, wherein the transform unit is partitioned into non-overlapping blocks, each block containing a respective group of significant-coefficient flags, and wherein each significant-coefficient-group flag corresponds to a respective block and its respective group of significant-coefficient flags; and encoding each significant-coefficient flag by if the significant-coefficient-flag is at position (0,0) in its group, a corresponding significant-coefficient-group flag is non-zero, the group is not the DC block, and all the previous significant-coefficient flags in the group are zero, then setting the significant-coefficient-flag at position (0,0) in the group to be 1 without encoding the significant-coefficient-flag at position (0,0) into a bitstream, and otherwise encoding the significant-coefficient flag into the bitstream if the significant-coefficient flag is in a group that has a corresponding significant-coefficient-group flag that is non-zero, and if the significant-coefficient flag is in a group that has a corresponding significant-coefficient-group flag that is zero, setting the significant-coefficient flag to zero without encoding the significant-coefficient flag into the bitstream.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 98.0
- Lexical Diversity: 2.38182
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13446186', '13286336', '16156058', '15657719', '15884535']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6174912848619822
- 35 USC 102 Novelty (BERT): 0.6129666966052273
- Combined Prediction Score: 0.6170388260363068
- Mean Citation Score: 552.570066
- Max Citation Score: 565.873
- Similarity Product: 512.4368876758814

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