Dual-Resolution Video Management for Lower-Cost Image Analysis
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Solution Overview
Problem
The increasing resolution of images captured by video management systems leads to higher data storage and transmission costs, and complex image analysis requirements, which burden both imaging devices and servers.
Innovation Solution
A video management system that captures high-resolution images while simultaneously storing and transmitting lower-resolution images, allowing servers to analyze and provide information based on low-resolution images, with metadata generation and transmission of high-resolution details on demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution images are captured and transmitted to the video management server, then image quality is improved, but data transmission cost and server processing load increase significantly
Solution Approach 1:
The patent segments image data into two resolution levels: high-resolution images are captured and stored locally in the surveillance device, while only low-resolution images are transmitted to the video management server for routine processing. This segmentation allows the system to maintain high image quality where needed while reducing transmission costs for bulk data handling.
Solution Approach 2:
The patent applies local quality by maintaining different resolution qualities in different locations within the system. High-resolution images are preserved locally at the surveillance device where storage is cheaper, while low-resolution images are transmitted to the server where processing occurs. This spatial differentiation of quality resolves the contradiction between image quality and transmission cost.
2Measurement precision
If high-resolution images are transmitted to the video management server for analysis, then analysis accuracy is improved, but inbound cost of the server increases rapidly
Solution Approach 1:
The patent segments the data processing function by performing initial image analysis locally at the surveillance device using low-resolution images, and only transmitting selected high-resolution images or analysis results to the server. This segmentation reduces the volume of data requiring server processing while maintaining analysis accuracy for critical functions.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary portion of image data (low-resolution images or selected high-resolution images) to the server rather than all high-resolution images. This partial transmission approach maintains sufficient analysis accuracy while dramatically reducing data volume and associated costs.
3Extent of automation
If complex intelligent image analysis is performed at the imaging device, then image analysis capability is improved, but device cost increases
Solution Approach 1:
The patent introduces an intermediary approach where the surveillance device performs basic image capture and local processing, while the video management server handles complex intelligent image analysis. This distribution of processing functions allows the imaging device to remain relatively simple and cost-effective while still achieving advanced analysis capabilities through the server's computational power.
Solution Approach 2:
The patent uses copying by transmitting low-resolution image copies to the server for complex analysis, rather than requiring the imaging device to perform all analysis functions. This allows the device to maintain simple hardware while still enabling sophisticated analysis through server-based processing of image copies.
Data Source
AI summary
An apparatus includes: an image capturing module configured to capture an image; a converting module configured to convert a first image with a first resolution to a second image with a second resolution; a storing module configured to store the first image and the second image; a communication module configured to receive a wireless signal; and a processor configured to functionally be connected with the image capturing module, the converting module, the storing module and the communication module, wherein the processor is configured to receive, from an external device, a request signal for requesting information related to the second image; generate a metadata related to the second image by analyzing the second image; and transmit, to the external device, an additional information about the second image based on the metadata.