Camera Privacy Mode Using Optical Blur at Image Capture
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Solution Overview
Problem
Existing camera monitoring technologies lack robust privacy protection capabilities, as they either compromise privacy or are susceptible to image restoration, and existing solutions like thermal imaging and radar are costly or ineffective in distinguishing humans from animals.
Innovation Solution
Adjust the hardware parameters of a camera, such as lens position or focal length, to a preset configuration that reduces image clarity when privacy mode is triggered, using metamaterials if necessary, ensuring blurred images that cannot be restored to clear form.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If post-processing techniques like pixelation or blurring are applied to clear images, then privacy protection is improved, but the images remain susceptible to restoration and leakage
Solution Approach 1:
The patent applies blurring or pixelation to images at the moment of capture rather than as a post-processing step. This preliminary action ensures that the image is never stored in clear form, making restoration impossible. The privacy protection is built into the capture process itself, not added later, which eliminates the vulnerability to restoration attacks.
2Loss of information
If mechanical covers are used to block the camera, then privacy protection is improved, but the camera loses its functionality
Solution Approach 1:
The patent changes the optical parameters of the camera system by introducing elements that alter light propagation paths. This creates controlled blur or distortion in captured images, reducing privacy risk while preserving the camera's full functionality. The camera remains operational and can capture images, but the images are inherently protected through optical parameter modification rather than mechanical blocking.
3Loss of information
If thermal imaging or radar technology is used to address privacy concerns, then privacy protection is improved, but the cost increases significantly
Solution Approach 1:
The patent modifies optical parameters within the existing visible light camera system, such as introducing variable blur zones, adjusting focal planes, or applying optical distortion. These parameter changes enable privacy protection using the same cost-effective camera hardware, avoiding the need for expensive thermal imaging or radar technology while maintaining functional monitoring capabilities.
4Loss of information
If infrared sensors are used to detect human movement, then privacy protection is improved, but the ability to distinguish between humans and animals is lost and susceptibility to temperature variations increases
Solution Approach 1:
The patent applies optical parameter modifications to visible light camera images, creating controlled blur or distortion that protects privacy while preserving sufficient image content for accurate object recognition. By working in the visible spectrum rather than infrared, the system maintains the ability to distinguish between humans and animals based on visual characteristics, while the optical parameter changes prevent clear identification of facial features or personal details.
Data Source
AI summary
A camera monitoring method includes when a trigger condition for entering a privacy mode is met, adjusting a hardware parameter of a camera to a preset hardware parameter, and using the camera with an adjusted hardware parameter to monitor a target scene in a privacy mode. A clarity of an image captured by the camera under the preset hardware parameter is lower than a clarity of an image captured by the camera in a focused state.