Biometric Camera Mount System Horizontal Pivot
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Solution Overview
Problem
Biometric data acquisition faces challenges in ensuring precise field coverage, uniform data acquisition, and user alignment due to varying sensor mountings and deployment constraints, leading to issues with vertical skewing and difficulty in matching data across different times and user heights.
Innovation Solution
A biometric camera mount system with horizontally aligned cameras, a pivot mechanism for adjustable vertical coverage, and an attention mechanism using a video display to align the user's gaze, minimizing vertical space occupation and allowing for on-site adjustments to accommodate varying installation heights and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If cameras are mounted vertically to cover vertical region of interest, then field of coverage is improved, but vertical space occupied increases
Solution Approach 1:
The patent applies dimensionality change by rotating the camera array from a vertical configuration to a horizontal configuration. Instead of stacking cameras vertically to achieve vertical field coverage, the cameras are arranged horizontally and rotated to point downward at an angle, thereby covering the same vertical region of interest while occupying minimal vertical space. This resolves the contradiction by transitioning from a vertical dimension solution to a horizontal dimension solution.
2Manufacturing precision
If cameras are fixed at manufacturing specifications, then manufacturing precision is improved, but adaptability to different deployment heights deteriorates
Solution Approach 1:
The patent implements dynamics by making the camera array rotatable about a horizontal axis, allowing the mounting system to be dynamically adjusted to different angles and heights during deployment. This rotational capability enables the same precisely-manufactured camera array to adapt to various installation locations with different height requirements, resolving the contradiction between manufacturing precision and deployment adaptability.
3Area of stationary object
If multiple cameras are stacked vertically, then vertical region coverage is improved, but device complexity increases
Solution Approach 1:
The patent applies merging by combining multiple cameras into a single integrated array that rotates as one unit about a horizontal axis. Instead of individually mounting and adjusting multiple vertical camera stacks, the cameras are merged into a unified horizontal array structure that can be mounted and adjusted as a single assembly, thereby reducing mounting complexity while maintaining vertical region coverage capability.
4Adaptability or versatility
If camera array is rotated to different angles, then adaptability to deployment constraints is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent applies parameter changes by allowing the mounting angle of the camera array to be adjusted as a variable parameter during deployment rather than being fixed during manufacturing. The camera array can be rotated to different angles to accommodate various deployment constraints, and the system is designed to maintain data acquisition uniformity across these angle variations through proper optical geometry and calibration, thus resolving the contradiction between adaptability and manufacturing precision.
Data Source
AI summary
A system for reducing the substantially vertical extent of a wide-area biometric system and for reducing the cost and complexity of installation while maintaining high biometric performance, using a substantially horizontally configuration of cameras, preferably with an attention mechanism, and using a precision calibration system that can be used by an unskilled technician and that does not require an accurate site survey or additional materials or equipment.