PATENT CLAIM ANALYSIS

Application Number: 15894124
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["345", "156000"]

Abstract:
A system for detecting a gazing point of a user in a three-dimensional (3D) space based on a virtual screen is provided. The system includes at least a processor and a wearable device, the wearable device further comprising an external camera arranged for capturing images of the user's field of view, and two internal cameras arranged for capturing binocular images of the user's left and right eyes. The processor is designed to determine the gazing point of the user based on a virtual screen. The coordinates of the pupil center as determined according to the images from the internal cameras are mapped to the images from the external camera based on a left and a right mapping relationships, which further mapped to the virtual screen as an intermediate screen for calculating the 3D coordinates of the gazing point.

Claim (Index 1):
A method for detecting a gazing point of a user in a three dimensional (3D) space based on a virtual screen, the method comprising:\n a calibration process comprising generating a left and a right mapping relationships, and determining a pupillary distance (D PP ) of the user and a distance between the user and the calibration screen (D ES ); and a detection process for determining a gazing point position of the user with reference to the virtual screen, the virtual screen being used as an intermediate screen enabling a detection of the gazing point in the 3D space; wherein the generating of the left and the right mapping relationships comprises calibrating one or more external cameras and two or more internal cameras using a plurality of calibration points on the calibration screen for obtaining the left and the right mapping relationships.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 2.22388
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14891578', '13215365', '15545328', '15770354', '14226136']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6079843373674844
- 35 USC 102 Novelty (BERT): 0.4988898451123801
- Combined Prediction Score: 0.597074888141974
- Mean Citation Score: 221.745498
- Max Citation Score: 240.18398
- Similarity Product: 180.77817150160072

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

Dataset: test