PATENT CLAIM ANALYSIS

Application Number: 15927854
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["375", "240160"]

Abstract:
Techniques related to decoder-side motion vector derivation (DMVD) are described. For example, this disclosure describes techniques related to applying one or more constraints to motion information, such as a motion vector (MV) derived by DMVD, and/or a MV difference between an initial MV and an MV derived by DMVD. When the constraint is applied to the DMVD, in certain examples, only the derived motion information which meets the constraint is regarded as valid motion information. Conditions may be placed on the constraints.

Claim (Index 14):
An apparatus configured to decode video data from an encoded video bitstream, the apparatus comprising:\n a memory configured to store the video data; and one or more processors in communication with the memory, the one or more processors configured to:\n generate, using decoder-side motion vector derivation (DMVD), a plurality of derived motion vectors; \n determine a first derived motion vector and a second derived motion vector from the plurality of derived motion vectors based on a cost metric, comprising:\n a determination that the first derived motion vector and the second derived motion vector satisfy at least one constraint on a relationship between the first derived motion vector and the second derived motion vector, the relationship comprising: the first derived motion vector and the second derived motion vector have a symmetric motion vector difference, the first derived motion vector and the second derived motion vector have a pseudo symmetric motion vector difference, the first derived motion vector and the second derived motion vector are anti-symmetric, the first derived motion vector and the second derived motion vector have an anti-symmetric motion vector difference, or the first derived motion vector and the second derived motion vector have a pseudo anti-symmetric motion vector difference; and \n \n decode a current block using the determined first derived motion vector and the second derived motion vector using bi-prediction.

Metadata:
- Claim Count in Document: 43.0
- Percentile: 90.0
- Lexical Diversity: 1.69643
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15900649', '15927952', '15080478', '15277433', '15754721']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5160035070283546
- 35 USC 102 Novelty (BERT): 0.5233351914751054
- Combined Prediction Score: 0.5167366754730297
- Mean Citation Score: 312.5674180000001
- Max Citation Score: 347.49023
- Similarity Product: 283.53897379773497

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

Dataset: test