PATENT CLAIM ANALYSIS

Application Number: 16069904
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["345", "156000"]

Abstract:
An eye tracking method in the disclosure comprises an image-capturing step of capturing a facial image including an eyeball of an object person, light from a light source that emits the light to form a corneal reflex point on the eyeball of the object person who gazes at a predetermined gaze point being reflected from the eyeball, a detecting step of calculating visual line information in a world coordinate system using the facial image captured in the image-capturing step and a correcting step of transforming the visual line information in the world coordinate system calculated in the detecting step into visual line information in a correction coordinate system that is a coordinate system different from the world coordinate system, and correcting the visual line information in the correction coordinate system using correction information for correcting a detection error caused by an individual difference of the eyeball.

Claim (Index 2):
The eye tracking device according to  claim 1 , further comprising\n a calculation unit that determines a rotation amount based on the positional relationship between the two gaze points, the rotation amount being used to transform the visual line information in the world coordinate system into the visual line information in the correction coordinate system, transforms each of two pieces of the visual line information in the world coordinate system, which is calculated by the detector, into the visual line information in the correction coordinate system using the rotation amount when the object person gazes at each of the two gaze points, and calculates the correction information from a difference between an angle of the visual line information in the correction coordinate system and an angle formed between a position of the eyeball of the object person and directions of the two gaze points.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 95.0
- Lexical Diversity: 2.30769
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15814558', '12517529', '13221739', '13941439', '13549730']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6130536028379819
- 35 USC 102 Novelty (BERT): 0.5169960404487407
- Combined Prediction Score: 0.6034478465990578
- Mean Citation Score: 248.872496
- Max Citation Score: 305.8847
- Similarity Product: 240.83290327589512

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