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 21):
The system according to  claim 15 , further comprising:\n a residual block reconstruction device configured to entropy decode, inverse quantize, and inverse transform an encoded stream to obtain a reconstructed residual block; an inter-frame prediction device comprising the information acquisition module, the calculation module, and the prediction module, wherein the inter-frame prediction device is configured to obtain a predicted image block of the current image block; and an image block reconstruction device configured to add the predicted image block to the reconstructed residual block to obtain a reconstructed image block.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 86.0
- Lexical Diversity: 2.51562
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15747864', '15523180', '13860460', '15762965', '13391517']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5074114224972858
- 35 USC 102 Novelty (BERT): 0.5116911844235335
- Combined Prediction Score: 0.5078393986899106
- Mean Citation Score: 281.23214
- Max Citation Score: 317.5158
- Similarity Product: 267.9686054726601

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