PATENT CLAIM ANALYSIS

Application Number: 16025323
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-10
Patent Classification: ["375", "240160"]

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 time level identifier of the lower layer, and restrictively performs inter-layer prediction for the current picture on the basis of a tile boundary alignment flag indicating whether tile alignment is performed between the upper layer and the lower layer if the corresponding picture in the lower layer is used as the inter-layer reference picture for the current picture in the upper layer.

Claim (Index 16):
A method for decoding a multi-layer video signal with a decoding apparatus, 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; and performing, the inter-layer prediction of the current picture using the corresponding picture of the lower layer, wherein a tile alignment present flag is obtained from a bitstream when video usability information is presented in the bitstream, 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 tile enabled flag is obtained from the bitstream when the tile alignment present flag is equal to 0, the layer tile enabled flag equal to 1 indicates that a second restriction is applied and the layer tile enabled flag equal to 0 indicates that the second restriction may or may not be applied, wherein the second restriction is to restrict all picture belonging to the upper layer to consist of a plurality of tiles; wherein a tile boundary alignment flag is obtained, based on the layer tile enabled flag, from the bitstream, the tile boundary alignment flag indicates whether a third restriction is applied wherein the third restriction is to restrict i) two samples of a corresponding picture of the lower 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, wherein a 8-tap filter is applied to the corresponding picture belonging to the lower layer for performing inter-layer prediction of luminance components of the current picture, and wherein coefficient sets of the 8-tap filter include {\u22121, 4, \u221210, 31, 47, \u22129, 3, \u22121}.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 95.0
- Lexical Diversity: 2.27083
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16006104', '15214708', '15214522', '15970147', '15029310']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5592976255454631
- 35 USC 102 Novelty (BERT): 0.5976430753937094
- Combined Prediction Score: 0.5631321705302877
- Mean Citation Score: 488.881616
- Max Citation Score: 498.18246
- Similarity Product: 493.814414894607

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