PATENT CLAIM ANALYSIS

Application Number: 15741694
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["382", "201000"]

Abstract:
An image collation device includes: a tentative matching point extraction unit configured to extract a plurality of tentative matching points that are pairs of corresponding feature points between a pair of input images; and a spatial verification unit configured to evaluate a degree of similarity between the pair of input images on the basis of all of a limiting conditions regarding consistency of a scale factor, a limiting conditions regarding consistency of a rotational angle, and a limiting conditions regarding consistency of a relative positional relationship according to a comparison of or a difference between geometric transformation parameters of the tentative matching points for each of the pairs of tentative matching points that is a combination of the tentative matching points extracted by the tentative matching point extraction unit.

Claim (Index 5):
The image collation device according to  claim 1 ,\n wherein the limiting condition regarding the consistency of the relative positional relationship is, regarding the feature points at respective first and second tentative matching points forming the pair of tentative matching points and first and second input images forming the pair of input images, that a maximum value of a length of a difference vector is smaller than a previously predetermined second threshold value, the difference vector being a difference between a first relative position vector and a second relative position vector, the first relative position vector indicating a difference in position between a characteristic point of the first tentative matching point and a characteristic point of the second tentative matching point in the first input image, the second relative position vector indicating a difference in position between the characteristic point of the first tentative matching point and the characteristic point of the second tentative matching point in the second input image, each of radius vectors obtained by converting the first and second relative position vectors into polar coordinates is greater than a previously predetermined third threshold value, and an absolute value of a difference between deflection angles obtained by converting the first and second relative position vectors into polar coordinates is smaller than a previously predetermined fourth threshold value.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 86.0
- Lexical Diversity: 2.09375
- Patent Class: 382.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13773451', '10833760', '14041693', '12321235', '09876319']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.344702685965829
- 35 USC 102 Novelty (BERT): 0.4663916044886676
- Combined Prediction Score: 0.3568715778181128
- Mean Citation Score: 170.211446
- Max Citation Score: 174.49846000000005
- Similarity Product: 140.41711436524275

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