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 9):
A pupil detection device, comprising:\n a first light emitting diode configured to emit light to illuminate a left eye and a second light emitting diode configured to emit light to illuminate a right eye, both the first and second light emitting diodes alternatively emitting the light in a first brightness value and a second brightness value which is different from the first brightness value; a first image sensor configured to capture a first image frame and a second image frame of the left eye respectively corresponding to the first brightness value and the second brightness value of the light emitted by the first light emitting diode, a second image sensor configured to capture a first image frame and a second image frame of the right eye respectively corresponding to the first brightness value and the second brightness value emitted by the second light emitting diode; and a digital signal processor electrically coupled to the first and second image sensors and configured to\n receive the first and second image frames from the first and second image sensors, \n calculate a differential image of the first and second image frames to generate a first image to be identified corresponding to the first image sensor and generate a second image to be identified corresponding to the second image sensor, \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): 0.6397768836426234
- 35 USC 102 Novelty (BERT): 0.485374207573216
- Combined Prediction Score: 0.6243366160356827
- Mean Citation Score: 235.19126
- Max Citation Score: 267.27692
- Similarity Product: 247.7976745523882

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