Gaze-Triggered 3D Scanning for Low-Power ROI Modeling
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Solution Overview
Problem
Active scanning systems for 3D modeling are more accurate but consume more energy, posing a challenge for remote locations where battery power is limited, especially when used with other sensors.
Innovation Solution
Utilizing a person's gaze to initiate and control active scanning, allowing more accurate data aggregation on regions of interest, reducing energy consumption by activating scanning only when gaze is fixed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If active scanning is used to create 3D models, then measurement precision is improved, but use of energy by moving object deteriorates
Solution Approach 1:
The scanning system dynamically adjusts its operation based on gaze detection. The active scanning is activated only when the person's gaze is detected as fixed, and deactivated when gaze is not fixed. This dynamic control allows the system to maintain high measurement precision for regions of interest while significantly reducing overall energy consumption compared to continuous scanning.
Solution Approach 2:
The system employs periodic scanning rather than continuous scanning. By scanning only during periods when gaze is fixed, the system achieves sufficient data collection for accurate 3D modeling of interested regions while reducing total energy consumption. The scanning operation is repeated periodically based on gaze detection results.
2Measurement precision
If active scanning runs continuously to ensure accurate 3D modeling, then measurement precision is improved, but loss of energy deteriorates
Solution Approach 1:
The system dynamically controls the scanning operation based on real-time gaze detection. Scanning is activated only when gaze is fixed and deactivated otherwise, optimizing the balance between energy loss and measurement precision by avoiding unnecessary continuous scanning.
Solution Approach 2:
The system uses the person's own gaze as the control signal for scanning activation. The gaze detection mechanism automatically triggers scanning without requiring external control, allowing the system to serve itself by utilizing the natural behavior (gaze fixation) to determine when scanning is needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and energy-efficient 3D modeling by selectively activating active scanning based on gaze direction, suitable for battery-powered devices at remote sites.
Implementation Method 1
A non-contact active scanning system typically includes an emitter that emits some kind of electromagnetic radiation (e.g., laser light, infra-red, etc.) and a detector that detects the reflections of the emitted radiation off the entity being scanned
Implementation Method 2
Other types of radiation, such as infra-red, could also be used. Passive scanning methods can be cheap because in most cases they merely require a convention digital camera (e.g., an RGB camera)
Data Source
AI summary
A method for 3D modeling of one or more regions of interest. The method includes obtaining information indicating that a person's gaze is fixed. Advantageously, the method further includes, in response to obtaining the information indicating that the person's gaze is fixed, initiating an active scan of a region of interest (ROI), wherein the ROI is a region in which the person's gaze is directed.