PATENT CLAIM ANALYSIS

Application Number: 16089517
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["382", "173000"]

Abstract:
Disclosed in the present invention is a video foreground extraction method for a surveillance video, which adjusts a size of a block to adapt to different video resolutions based on an image block processing method; and then extracts a foreground object in a moving state by establishing a background block model, the method comprising: representing each frame of image I in the surveillance video as a block; initializing; updating a block background weight, a block temporary background and a temporary background; updating a block background and a background; saving a foreground, and updating a foreground block weight and a foreground block; and performing binarization processing on the foreground to obtain a final foreground result. The invention reduces the dimension of each frame of image in the surveillance video, eliminates the influence of the illumination on the block method by means of the pixel-based comparison, and meanwhile eliminates the influence on video analysis due to increasing size of the surveillance video. The invention can extract a dynamic foreground object, adapt to a larger size of a surveillance video, and has a lower algorithm complexity.

Claim (Index 3):
The surveillance video based video foreground extraction method according to  claim 1 , characterized in that the size of the block is set to be p*q, \u03b5 1  is a threshold representing the difference between blocks, the threshold \u03b5 3  is the threshold of the difference between pixels, and \u025b 1 = p * q * \u025b 3 2 is set.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.57692
- Patent Class: 382.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16089493', '12961497', '15388525', '14452807', '11666294']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3797557828272082
- 35 USC 102 Novelty (BERT): 0.507290521081007
- Combined Prediction Score: 0.392509256652588
- Mean Citation Score: 233.894916
- Max Citation Score: 263.04556
- Similarity Product: 178.02506777526384

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