PATENT CLAIM ANALYSIS

Application Number: 15755460
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["375", "240030"]

Abstract:
Because human eyes may become less sensitive to dark areas around very bright areas in a video (known as glare masking), we may use coarser quantization in such dark areas. Considering the extra distortion that human eyes can tolerate in a block with glare masking, a quantization ratio for the block can be calculated. The quantization parameter for the block can then be scaled up using the quantization ratio to form an adjusted quantization parameter. In one embodiment, the adjusted quantization parameter can be derived at the decoder side, and thus, transmission of quantization ratio information is not needed. In particular, we can estimate the luminance of a current block based on a predicted block and de-quantized DC coefficient, and use the luminance of causal neighboring blocks and the estimated luminance of the current block to estimate the adjusted quantization parameter.

Claim (Index 1):
A method of encoding a video, comprising:\n accessing a block of an image of said video; encoding said block based on a quantization parameter for said block, said quantization parameter being determined based on luminance of said block and luminance of one or more neighboring blocks of said block, wherein said luminance of said block is based on at least one transform coefficient in said block; and generating a bitstream responsive to the encoding.

Metadata:
- Claim Count in Document: 24.0
- Percentile: 88.0
- Lexical Diversity: 1.9375
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15175570', '15544753', '15272172', '15293199', '15646959']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4897407505358927
- 35 USC 102 Novelty (BERT): 0.4991809577341182
- Combined Prediction Score: 0.4906847712557153
- Mean Citation Score: 246.784304
- Max Citation Score: 252.88393
- Similarity Product: 181.2901809723193

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