Image recording system

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Solution Overview

Problem

Existing video summary generation systems require a separate server, making them unsuitable for embedded network video recorder (NVR) systems due to the need for high-performance processors to process high-resolution image frames.

Innovation Solution

An image recording system with a host system and sub-system configuration using PCIe communication, where the host system stores original images and transmits them to the sub-system for processing, generating a video summary without the need for a separate server, utilizing a central processing unit (CPU) and digital signal processor (DSP) for image processing and display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a separate server is used for video summary generation, then video summary functionality can be achieved, but system complexity and cost increase

Engineering Contradiction:

Improvevideo summary generation capabilityVSAvoidsystem structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the video summary generation function into the NVR system by integrating a summary generation module within the NVR's existing processor and storage resources. This eliminates the need for a separate server, reducing system complexity while maintaining video summary capability. The NVR now performs both recording and summary generation functions using its internal resources.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The NVR system is designed to perform multiple functions using its existing components. The processor that handles recording tasks is also utilized for video summary generation, and the storage system serves both full video storage and summary video storage. This multi-functionality approach allows the NVR to generate video summaries without requiring dedicated separate hardware.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Manufacturing precision

If high-performance processors are used for processing high-resolution image frames, then video summary quality improves, but computational load and processing time increase

Engineering Contradiction:

Improvevideo summary qualityVSAvoidprocessing speed

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The patent segments the video processing task by extracting only key frames or representative frames at specific time intervals rather than processing every frame. This segmentation approach maintains video summary quality by capturing essential moments while significantly reducing the computational load and processing time required.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system performs partial processing by selecting and processing only necessary frames (key frames) rather than all frames in the video stream. This partial action approach achieves adequate video summary quality without the excessive computational resources required for full-frame processing, thus improving processing speed while maintaining acceptable quality.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9667908B2Image recording system

Publication Date: 2017.05.30 HANWHA VISION CO LTD

AI summary

An image recording system including a component capable of displaying and processing of images such as a central processing unit (CPU)/digital signal processor (DSP) that may be installed in a network video recorder (NVR) so that the image recording system may be used to implement a video summary/video synopsis technology in an embedded NVR/digital video recorder (DVR)/set-top box (SETTOP) system having a Host CPU and a plurality of DSP cores.