Security Camera Autofocus Feedback for Manual Lens Adjustment
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Solution Overview
Problem
The installation of security cameras in security systems is complicated by the latency of data transfer and low frame rates, leading to issues like overshoot and undershoot during focusing, and existing solutions involving motorized lenses are costly.
Innovation Solution
Security cameras utilize an autofocus routine that provides feedback to installers through light or audio cues, allowing manual adjustment of the lens focus instead of motorized control, enabling precise focusing without the need for expensive motorized lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If motorized lenses with autofocus routine are used, then focusing precision is improved, but device cost increases
Solution Approach 1:
The patent implements a feedback mechanism where the security camera captures test images at different focus positions, analyzes the sharpness of the captured image, and provides feedback signals to guide the installer's manual focusing adjustments. This feedback loop enables precise focusing without requiring expensive motorized lenses, as the installer can iteratively adjust the lens based on real-time feedback until optimal focus is achieved.
Solution Approach 2:
The autofocus routine performs self-assessment by automatically analyzing the captured images to determine focus quality. Instead of requiring external motorized control, the system autonomously evaluates the focus state and generates appropriate feedback, allowing the installer to make informed manual adjustments without complex automated mechanisms.
2Ease of operation
If data transfer over security network is used for focusing control, then remote control capability is improved, but response time deteriorates due to latency
Solution Approach 1:
The system performs preliminary actions by capturing multiple test images at different focus positions before final focusing is complete. The autofocus routine pre-analyzes these images to determine the direction and magnitude of focus adjustments needed, allowing the installer to make accurate manual adjustments without repeated network round-trips for feedback.
Solution Approach 2:
The patent introduces an intermediary feedback mechanism that translates complex image analysis results into simple, intuitive feedback signals for the installer. This intermediary layer processes the detailed image data locally and provides condensed guidance information, reducing the need for continuous network communication during the focusing process.
Data Source
AI summary
A system and method for installing security cameras on a security network of a security system. The security cameras include an autofocus routine, manually adjustable lenses, and feedback mechanisms. The autofocus routine calculates the degree to which the field of view is out of focus and the feedback mechanism provides feedback to the installer during installation. In response to the feedback from the feedback mechanism, the installer manually adjusts the lens of security camera.