Privacy Protection Image Processing Apparatus Background Selection
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Solution Overview
Problem
Existing image processing techniques for monitoring cameras fail to effectively protect personal privacy by either exposing subjects when recognition processing fails or by not accounting for environmental changes in the background, leading to difficulties in recognizing real-world changes.
Innovation Solution
An image processing apparatus that acquires and processes images by extracting subject regions, selecting appropriate background images based on similarity, and synthesizing them with mask regions to generate privacy-protected images, considering environmental changes and real-world states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mask image is used to replace the inside of the mask region, then privacy protection is improved, but the subject may be exposed when recognition processing fails
Solution Approach 1:
The patent applies beforehand cushioning by using a background image as a backup when recognition processing fails. Instead of leaving the mask region empty or using a generic mask image, the system prepares a background image in advance that can be used as a fallback, ensuring that the subject is never exposed even when recognition fails. This cushioning mechanism guarantees continuous privacy protection while maintaining the ability to display relevant background information.
2Ease of manufacture
If a fixed background image is used for synthesis, then processing simplicity is improved, but environmental changes in the monitoring region are not accounted for
Solution Approach 1:
The patent applies dynamics by making the background image selection adaptive rather than fixed. The system dynamically selects background images based on the captured image content, comparing features to determine which background image best matches the current environmental conditions. This allows the system to adapt to environmental changes in the monitoring region while maintaining a relatively simple processing framework based on feature comparison and selection.
Data Source
AI summary
In order to select a suitable background image for an image subjected to privacy protection, an image processing apparatus acquires a captured image, and extracts a subject region corresponding to a predetermined subject from the captured image. The image processing apparatus selects a background image to be used for processing from a plurality of background images, based on the captured image, and performing processing for abstracting the extracted subject region for the selected background image.