PATENT CLAIM ANALYSIS

Application Number: 16399437
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["375", "240160"]

Abstract:
An image coding method includes: deriving a candidate for a motion vector of a current block from a co-located motion vector; adding the candidate to a list; selecting the motion vector of the current block from the list; and coding the current block, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.

Claim (Index 3):
An image decoding method of decoding each block among blocks of pictures, the image decoding method comprising:\n deriving a bi-predictive candidate for motion vectors of a current block to be decoded, from a first motion vector of a first block included in a first picture, the first picture being different from a picture that includes the current block; adding the derived bi-predictive candidate to a list of candidates; selecting, in response to an index, one bi-predictive candidate that includes a second motion vector and a third motion vector from the list of candidates; and decoding the current block using the selected one bi-predictive candidate, the selected one bi-predictive candidate identifying (i) the second motion vector, (ii) the third motion vector, (iii) a second reference picture of the current block corresponding to the second motion vector, and (iv) a third reference picture of the current block corresponding to the third motion vector, wherein the deriving includes:\n determining whether a first reference picture of the first block is a long-term reference picture or a short-term reference picture; \n determining whether the second reference picture of the current block is a long-term reference picture or a short-term reference picture; \n determining whether the third reference picture of the current block is a long-term reference picture or a short-term reference picture; \n deriving each of the second motion vector and the third motion vector so as to be the same as the first motion vector without scaling based on a temporal distance in the case of determining that (i) the corresponding one of the second reference picture and the third reference picture is a long-term reference picture and (ii) the first reference picture is a long-term reference picture; and \n deriving each of the second motion vector and the third motion vector from the first motion vector by scaling based on a temporal distance in the case of determining that (i) the corresponding one of the second reference picture and the third reference picture is a short-term reference picture and (ii) the first reference picture is a short-term reference picture.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 100.0
- Lexical Diversity: 2.7619
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13660245', '14458360', '14074179', '15878604', '15606615']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5309933728862102
- 35 USC 102 Novelty (BERT): 0.5307407420261948
- Combined Prediction Score: 0.5309681098002087
- Mean Citation Score: 340.80212399999994
- Max Citation Score: 361.681
- Similarity Product: 333.70886924260856

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