PATENT CLAIM ANALYSIS

Application Number: 16036910
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["375", "240120"]

Abstract:
A method for decoding a multi-layer video signal, according to the present invention, determines whether a corresponding picture in a lower layer is used as an inter-layer reference picture for a current picture in an upper layer, on the basis of a temporal level identifier of the lower layer, performs inter-layer prediction for the current picture by using the corresponding picture if the corresponding picture in the lower layer is used as the inter-layer reference picture for the current picture in the upper layer, reconstructs 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 reconstructed current picture on the basis of a layer filter flag for the upper layer.

Claim (Index 16):
A method for decoding a multi-layer video signal, the method comprising:\n obtaining a maximum temporal level identifier relating to a lower layer, the maximum temporal level identifier indicating a maximum temporal level identifier to which an inter-layer prediction of an upper layer is allowed; determining whether a corresponding picture of the lower layer is used as an inter-layer reference picture for a current picture of the upper layer by comparing the obtained maximum temporal level identifier with a temporal level identifier of the corresponding picture of the lower layer; performing the inter-layer prediction of the current picture of the upper layer using the corresponding picture of the lower layer, if the corresponding picture of the lower layer is used in the inter-layer prediction of the current picture of the upper layer; reconstructing the current picture using a prediction sample obtained by the inter-layer prediction and a residual sample relating to the current picture; and applying a loop filter to tile boundaries of the reconstructed current picture, wherein a tile alignment present flag is obtained from a bitstream when video usability information is presented in the bitstream, wherein the tile alignment present flag equal to 1 indicates that a first restriction is applied, and the tile alignment present flag equal to 0 indicates that the first restriction may or may not be applied, wherein the first restriction is to restrict all pictures belonging to a video sequence to consist of a single tile, wherein a layer filter flag is obtained from the bitstream when the tile alignment present flag equal to 0, the layer filter flag equal to 1 indicates that a second restriction is applied, and the layer filter flag equal to 0 indicates that the second restriction may or may not be applied, wherein the second restriction is to restrict the loop filter is not to be applied to tile boundaries of each picture belonging to the upper layer, wherein a tile boundary alignment flag is obtained based on the tile alignment present flag from the bitstream, and the tile boundary alignment flag indicates whether a third restriction is applied, and wherein the third restriction is to restrict that i) two samples of the corresponding picture of the lower layer 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 belong to different tiles, when the two samples of the current picture of the upper layer belong to different tiles.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 95.0
- Lexical Diversity: 2.54545
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15953722', '15030087', '15214543', '15029615', '15030099']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.589441517124164
- 35 USC 102 Novelty (BERT): 0.5780314870324287
- Combined Prediction Score: 0.5883005141149905
- Mean Citation Score: 461.26063
- Max Citation Score: 470.317
- Similarity Product: 466.32789304089545

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