PATENT CLAIM ANALYSIS

Application Number: 15886013
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["348", "078000"]

Abstract:
A pupil detection device includes an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball. The image sensor captures at least one image frame of the eyeball to be served as an image to be identified. The processing unit is configured to calculate a minimum gray value in the image to be identified and to identify a plurality of pixels surrounding the minimum gray value and having gray values within a gray value range as a pupil area.

Claim (Index 5):
A pupil detection device, comprising:\n a single light emitting diode configured to emit light to illuminate a left eye or a right eye alternatively in a first brightness value and a second brightness value which is different from the first brightness value; two image sensors each configured to capture a first image frame and a second image frame respectively corresponding to the first brightness value and the second brightness value of the light emitted by the same single light emitting diode; and a digital signal processor electrically coupled to the two image sensors and configured to\n receive the first and second image frames from the two image sensors, \n calculate a differential image of the first and second image frames to generate a first image to be identified corresponding to one of the two image sensors and generate a second image to be identified corresponding to the other one of the two image sensors, \n respectively calculate a minimum gray value in each of the first image to be identified and the second image to be identified before a pupil area is identified, and \n identify a plurality of pixels (i) surrounding the calculated minimum gray value and (ii) having gray values within a gray value range as the pupil area, wherein the calculated minimum gray value is inside a boundary of the identified pupil area.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 1.89796
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15253503', '14054724', '15253453', '13318431', '15821891']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6397567303134024
- 35 USC 102 Novelty (BERT): 0.4854815807457304
- Combined Prediction Score: 0.6243292153566352
- Mean Citation Score: 235.19126
- Max Citation Score: 267.27692
- Similarity Product: 247.4443261729193

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