PATENT CLAIM ANALYSIS

Application Number: 15860834
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["375", "240120"]

Abstract:
In a picture coding device, a significant coefficient information coding controller  706  and an arithmetic encoder  701  code significant difference coefficient information indicating that a difference coefficient value is not zero and significant for each of the difference coefficients in the partial region of the coding target. A difference coefficient value coding controller  707  and the arithmetic encoder  701  code difference coefficient values when significant difference coefficient information is significant for each of pixels in the partial region of the coding target. The significant coefficient information coding controller  706  decides a context for coding the significant difference coefficient information in the partial region of the coding target based on information indicating significance of the difference coefficient in the coded partial region.

Claim (Index 1):
A picture coding device that partitions difference information between a picture serving as a coding target and a picture serving as a prediction target into a plurality of sub blocks, and codes the partitioned sub block in a certain order, the picture coding device comprising:\n a significant sub block information encoder that codes significant sub block information indicating whether or not all values of difference coefficients belonging to a the sub block serving as a coding target are zero; a significant difference coefficient information encoder that codes significant difference coefficient information indicating whether or not the value of a the difference coefficient is zero; a difference coefficient value encoder that codes the value of the difference coefficient; and a context deriver that derives a context for coding the significant difference coefficient information of difference coefficient serving as the coding target based on sum of horizontal position and vertical position of the difference coefficient in sub block serving as the coding target, and at least one of (1) the significant sub block information of coded sub blocks neighboring to the sub block serving as the coding target, (2) the significant difference coefficient information of difference coefficients belonging to coded sub blocks neighboring to the sub block serving as the coding target, and or (3) values of difference coefficients belonging to coded sub blocks neighboring to the sub block serving as the coding target, wherein, when a sum of a horizontal-direction position and a vertical-direction position of the difference coefficient serving as the coding target is larger than a sum of a horizontal-direction position and a vertical-direction position of another difference coefficient belonging to the sub block serving as a coding target, the context deriver derives a context having a value equal to or smaller than a context for coding said other difference coefficient, and when a sum of a horizontal-direction position and a vertical-direction position of the difference coefficient serving as the coding target is smaller than a sum of a horizontal-direction position and a vertical-direction position of another difference coefficient belonging to the sub block serving as a coding target, the context deriver derives a context having a value equal to or larger than a context for coding said other difference coefficient.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 86.0
- Lexical Diversity: 2.71739
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15498098', '15649766', '14478788', '15613864', '15435369']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6063183397737888
- 35 USC 102 Novelty (BERT): 0.6244690889532686
- Combined Prediction Score: 0.6081334146917369
- Mean Citation Score: 526.210292
- Max Citation Score: 559.72925
- Similarity Product: 554.2628104183376

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

Dataset: test