Surveillance Camera Selective Image Encryption

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Solution Overview

Problem

Existing surveillance camera systems fail to effectively prevent unauthorized access to captured images, as hackers can still invade storage systems despite encryption measures.

Innovation Solution

A surveillance camera system that includes a camera and an image recorder, which selectively encrypts images and stores them on a password-protected storage device, allowing decryption only after an authorization process is completed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If images are stored on a storage system without encryption, then access and processing is simple and fast, but unauthorized people can access and obtain the images

Engineering Contradiction:

Improvesecurity of imagesVSAvoidcomplexity of access process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by encrypting images at the time of capture or storage, before any access occurs. The image recorder encrypts captured images using encryption keys stored in secure elements, so that when unauthorized access is attempted, the images are already protected. This resolves the contradiction by preparing security measures in advance rather than adding complexity during access operations.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If encryption is applied to all captured images, then security is improved, but processing speed and access efficiency deteriorate

Engineering Contradiction:

Improvesecurity of imagesVSAvoidimage processing speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by selectively encrypting only specific portions or types of images rather than all images uniformly. The image recorder can identify which images require encryption based on content analysis or metadata, and apply encryption only to those specific images. This resolves the contradiction by concentrating security resources on high-risk images while maintaining fast processing for non-sensitive images.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies partial action by implementing encryption for only a subset of captured images rather than all images. The system can determine which images need protection based on sensitivity levels, and apply encryption selectively. This resolves the contradiction by achieving adequate security for critical images without the performance penalty of encrypting every single image.

Inventive Principle:

Principle #16Partial or excessive action

3Reliability

If password protection is added to storage device, then unauthorized access is prevented, but ease of operation deteriorates

Engineering Contradiction:

Improveprotection of storage systemVSAvoidconvenience of accessing images

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent applies self-service by implementing automatic authentication mechanisms where the system handles password verification and decryption processes automatically. Authorized users simply need to provide credentials once, and the system automatically manages the decryption of images without requiring manual intervention for each access. This resolves the contradiction by making the security system work automatically for authorized users while maintaining strong protection against unauthorized access.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11468174B2Surveillance camera system and related surveillance system thereof

Publication Date: 2022.10.11 EYS3D MICROELECTRONICS CO

AI summary

A surveillance camera system includes a camera and an image recorder. The image recorder receives a plurality of images captured by the camera and selectively encrypting the plurality of images captured by the camera to generate an encrypted file.