3D Attention Zone Mapping with Single-Camera Gaze Triangulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for determining attention zones in three-dimensional space require multiple image capturing units and additional sensors, which are cumbersome and inefficient, as they cannot simultaneously capture a person's field of vision and establish direct geometric relationships between gaze directions and attention zones.
Innovation Solution
A computer-implemented method using a single image capturing unit, data processing unit, and database to generate geometric attention zones by capturing and analyzing gaze direction vectors from multiple positions, allowing triangulation to determine intersection points without additional sensors, enabling flexible and fast configuration of attention zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple image capturing units are used to capture the person's field of vision, then the attention zones can be accurately defined in three-dimensional space, but the device complexity and installation requirements increase
Solution Approach 1:
The patent transitions from two-dimensional image capture to three-dimensional spatial reconstruction by capturing images from multiple positions and using triangulation mathematics to calculate intersection points in 3D space, thereby defining attention zones without requiring additional sensors in multiple locations
Solution Approach 2:
The patent introduces mathematical triangulation calculations as an intermediary process that converts two-dimensional gaze direction vectors captured from different positions into three-dimensional intersection points, serving as a virtual mediator that replaces the need for physical additional sensors
2Manufacturing precision
If additional sensors are installed to establish direct geometric relationships between gaze directions and attention zones, then the attention zone configuration becomes accurate, but the installation time and system complexity increase
Solution Approach 1:
The patent creates a virtual copy of the geometric relationship through mathematical triangulation, where the intersection points calculated from multiple 2D image captures represent the same spatial information that would otherwise require physical sensors to directly measure, thereby eliminating installation time for additional hardware
Solution Approach 2:
The patent replaces the mechanical/physical system of additional sensors with an optical-mathematical system, where gaze direction vectors captured by the existing image capturing unit are processed through triangulation algorithms to achieve the same geometric relationship establishment without physical additional components
3Ease of operation
If a single image capturing unit is used, then the installation is simplified, but the ability to capture the person's field of vision and establish geometric relationships is compromised
Solution Approach 1:
The patent makes the image capturing unit dynamic by moving it to multiple different positions during the calibration process, allowing a single unit to capture the necessary field of vision data from various angles, thereby achieving the versatility of multiple fixed sensors through temporal and spatial movement
Solution Approach 2:
The patent enables the single image capturing unit to perform multiple functions: capturing the person's gaze direction, capturing the field of vision, and providing data for triangulation calculations, thereby replacing what would traditionally require multiple specialized sensors
Data Source
AI summary
A computer-implemented method for generating a geometric attention zone (1) for at least one person in a three-dimensional space (2), comprising a single image capturing unit (3), a data processing unit (4), a database (5) and a display unit (6), as well as a computer-readable storage medium and a device for executing such a method.