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 3):
The method of  claim 2 , wherein the steps of obtaining a motion vector of the current pixel according to the motion vector of the current image block and the related spatial position information of the current pixel comprises:\n obtaining the motion vector of the current pixel through the following functional relationship:\n ( MV\u2032 x ,MV\u2032 y )= f ( x,y,w,h,i,j,MV x ,MV y ,width,height) \n where f is a preset function, (x,y) is coordinate of a pixel at an upper left corner of the current image block in the current image, (i,j) is coordinate of the current pixel in the current image block, w and h are respectively a width and a height of the current image block, the width and the height in the functional relationship are respectively a width and a height of the current image, and (MV x ,MV y ) is the motion vector of the current image block.

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): 0.5365399771922916
- 35 USC 102 Novelty (BERT): 0.5197112306022509
- Combined Prediction Score: 0.5348571025332876
- Mean Citation Score: 281.23214
- Max Citation Score: 317.5158
- Similarity Product: 224.91551620352269

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