Mobile Personal Content Protection via Camera View Estimation
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Solution Overview
Problem
Existing mobile-based personal content protection methods are inefficient due to reliance on image resolution and detection algorithms, leading to high computational costs and reduced accuracy, especially when protecting personal content on mobile devices, and they often require manual processing of images one by one.
Innovation Solution
A mobile-based personal content protection apparatus and method that uses sensor information from a mobile terminal to estimate the camera view, collaborate with nearby mobile terminals to determine allowed photographing areas, and mask disallowed regions, thereby preventing unauthorized photography of personal content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If passive image analysis and detection algorithms are used to mask personal content, then personal content protection is achieved, but processing time and computational resources are excessively consumed
Solution Approach 1:
The system performs preliminary actions by having users pre-register their personal content areas and receive notifications before photographing occurs. The mobile terminal estimates camera views in advance and proactively notifies users of potential personal content capture, allowing users to take preventive actions before the actual photographing happens, thus avoiding time-consuming post-processing analysis.
Solution Approach 2:
The patent introduces an intermediary notification system that acts as a mediator between the camera application and the user. Instead of directly analyzing and masking personal content in captured images, the system uses a notification intermediary to alert users about potential personal content areas, enabling them to make informed decisions about whether to proceed with photographing, thereby eliminating the need for time-intensive automated detection and masking processes.
2Productivity
If automated detection algorithms are used to identify personal content, then processing efficiency is improved, but detection accuracy is reduced
Solution Approach 1:
The system performs preliminary actions by having users pre-register their personal content areas and receive notifications before photographing occurs. The mobile terminal estimates camera views in advance and proactively notifies users of potential personal content capture, allowing users to take preventive actions before the actual photographing happens, thus avoiding time-consuming post-processing analysis.
Solution Approach 2:
The patent implements a feedback mechanism where users receive notifications about estimated personal content areas and can provide feedback by confirming or correcting the detected areas. This user feedback loop continuously improves the accuracy of personal content detection over time, combining automated efficiency with human precision to resolve the contradiction between processing speed and detection accuracy.
3Measurement precision
If manual image checking is performed to protect personal content, then detection accuracy is maintained, but processing speed and user burden increase significantly
Solution Approach 1:
The system performs preliminary actions by having users pre-register their personal content areas and receive notifications before photographing occurs. The mobile terminal estimates camera views in advance and proactively notifies users of potential personal content capture, allowing users to take preventive actions before the actual photographing happens, thus avoiding time-consuming post-processing analysis.
Solution Approach 2:
The patent enables users to self-register their personal content areas and manage their own privacy preferences without requiring manual review of each captured image. The system automatically estimates camera views and generates notifications based on registered information, allowing users to serve themselves by maintaining accurate personal content registries, thereby achieving both high accuracy and processing speed without manual image checking.
4Reliability
If server-based image analysis is used to protect personal content, then comprehensive protection is achieved, but physical resources and costs increase
Solution Approach 1:
The patent extracts and processes only the essential information needed for personal content protection - specifically, pre-registered personal content area coordinates and camera view estimation data. Instead of transmitting and analyzing complete images on servers, the system extracts minimal necessary data (position information, camera parameters) and performs lightweight local calculations, dramatically reducing computational resource consumption while maintaining protection coverage.
Solution Approach 2:
The system uses copying by storing and referencing pre-registered personal content area information rather than repeatedly analyzing actual images. The mobile terminal copies stored personal content coordinates and compares them against estimated camera views, avoiding the need for resource-intensive server-based image analysis while maintaining comprehensive protection coverage through efficient data reuse.
Data Source
AI summary
Provided are a mobile-based personal content protection apparatus and method, in which a user sets a mobile terminal to prevent another user from photographing and using personal content with a camera included in the mobile terminal. The mobile-based personal content protection apparatus may include a camera view estimator, a peripheral information receiver, a personal content detector, and a personal content masking unit. A view which is to be photographed by a user is estimated in a space where photographing is allowed by using sensor information included in a mobile terminal, information about whether to allow photographing by each mobile device is collected by cooperating all mobile terminals in a camera view, and a disallowed area is masked in photographing, thereby fundamentally protecting personal content.