PATENT CLAIM ANALYSIS

Application Number: 15773319
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["382", "103000"]

Abstract:
A method and device for identifying a pupil in an image is provided. The method comprises four steps including: A. image preprocessing, B. edge detecting, C. building connected graphs, and D. screening connected graph pairs.

Claim (Index 1):
A method of identifying a pupil in an image, comprising:\n A. image preprocessing; B. edge detecting; C. building connected graphs, comprising: marking off connected regions based on edge lines of edge graphs, dividing connected regions into two categories having a grey-scale value between 100 and 200 and a grey-scale value over 200, respectively, for connected graphs of these two categories, selecting connected graph pairs, in which edge lines of a connected graph b having a grey-scale value over 200 are included in edge lines of a connected graph a having a grey-scale value between 100 and 200; D. screening connected graph pairs, comprising: for each of connected graph pairs, calculating a centroid pixel location b_Location of the connected graph b, a pixel length b_Major of a major axis and a pixel length b_Minor of a minor axis of an ellipse that has the same standardized second-order central moment as its connected region, connecting the connected graphs a and b to obtain a new image c, calculating a centroid pixel location c_Location of the image c, a pixel length c_Major of a major axis and a pixel length c_Minor of a minor axis of an ellipse that has the same standardized second-order central moment as its connected region, for each of connected graph pairs, calculating a pixel distance L between the centroid pixel location b_Location and c_Location, a ratio R of b_Major to c_Major, and a ratio P of b_Minor to c_Minor, for each of connected graph pairs, calculating W=L\u2212m*R\u2212n*P, wherein m and n are weight factors, selecting the connected graph b in the connected graph pair that has the maximum value of W as the identified pupil.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 1.20588
- Patent Class: 382.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13653479', '12894990', '12138211', '11852541', '13859998']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3036809646785942
- 35 USC 102 Novelty (BERT): 0.4957214221350835
- Combined Prediction Score: 0.3228850104242431
- Mean Citation Score: 157.63391399999998
- Max Citation Score: 162.69926
- Similarity Product: 95.298780870924

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test