PATENT CLAIM ANALYSIS

Application Number: 15746932
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-04
Patent Classification: ["375", "240160"]

Abstract:
A video encoding and decoding method, and its inter-frame prediction method, device and system thereof are disclosed. The inter-frame prediction method includes obtaining a motion vector of the current image block and related spatial position of a current pixel, obtaining a motion vector of the current pixel according to the motion vector of the current image block and the related spatial position of the current pixel; and obtaining a predicted value of the current pixel according to the motion vector of the current pixel. The method considers both the motion vector of the current image block and the related spatial position information of the current pixel during inter-frame prediction. The method can accommodate lens distortion characteristics of different images and zoom-in/zoom-out produced when the object moves in pictures, thereby improving the calculation accuracy of pixels' motion vectors, and improving inter-frame prediction performance and compression efficiency in video encoding and decoding.

Claim (Index 4):
The method of  claim 1 , wherein the step of obtaining a predicted value of the current pixel according to the obtained motion vector of the current pixel comprises:\n when a reference sample location pointed by the motion vector of the current pixel is not an integer pixel location, calculating a sample value of a reference sample location by using an interpolation method, and taking the sample value as a prediction value of the current pixel; when the reference sample location pointed by the motion vector of the current pixel is an integer pixel location, taking the pixel value of the integer pixel location as a sample value of the reference sample location, and taking the sample value as a prediction value of the current pixel.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 86.0
- Lexical Diversity: 2.51562
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15747864', '15523180', '13860460', '15762965', '13391517']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5367519843282919
- 35 USC 102 Novelty (BERT): 0.5173990158736321
- Combined Prediction Score: 0.5348166874828258
- Mean Citation Score: 281.23214
- Max Citation Score: 317.5158
- Similarity Product: 242.31196720193623

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