PATENT CLAIM ANALYSIS

Application Number: 15953722
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["375", "240130"]

Abstract:
A scalable video signal decoding method, according to the present invention, determines a corresponding picture belonging to a lower layer used for an inter-layer prediction of a current picture belonging to an upper layer, performs the inter-layer prediction of the current picture by using the corresponding picture of the determined lower layer, restores the current picture by using a prediction sample acquired through the inter-layer prediction and a residual sample of the current picture, and selectively applies a loop filter to a tile boundary of the restored current picture on the basis of a layer filter flag for the upper layer.

Claim (Index 19):
A method for encoding a multi-layer video signal, the method comprising:\n performing an inter-layer prediction on a current picture of an upper layer using a corresponding picture of a lower layer; determining whether a first restriction is applied, the first restriction is to restrict all pictures belonging to a video sequence to consist of a single tile; encoding a maximum temporal level identifier relating to the lower layer, the maximum temporal level identifier indicating a maximum temporal level identifier to which the inter-layer prediction of an upper layer is allowed, among temporal level identifiers of the lower layer; encoding a tile aligned present flag based on the determination result; encoding, based on the tile aligned present flag, a layer filter flag indicating whether a second restriction is applied, the second restriction is to restrict a loop filter is not to be applied to a tile boundary of each picture belonging to the upper layer; encoding, based on the tile aligned present flag, a tile boundary alignment flag indicates whether a third restriction is applied, the third restriction is to restrict i) two samples of a corresponding picture of the upper layer to belong to one tile when two samples of the current picture of the upper layer belong to one tile, and ii) the two samples of the corresponding picture of the lower layer to belong to different tiles when the two samples of the current picture of the upper layer belong to different tiles, and generating a bitstream including at least one of the maximum temporal level identifier, the tile aligned present flag, the tile boundary alignment flag and the layer filter flag, wherein when the corresponding picture is used for inter-layer prediction of a current block of the current picture, both x and y components of a motion vector relating to the current block are determined equal to zero.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 91.0
- Lexical Diversity: 2.22917
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15029615', '15939011', '15030087', '15214543', '15214642']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5976568970071783
- 35 USC 102 Novelty (BERT): 0.5688040071588747
- Combined Prediction Score: 0.594771608022348
- Mean Citation Score: 462.034674
- Max Citation Score: 463.4045
- Similarity Product: 421.8187835670709

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