Surveillance Data Processing Apparatus Bandwidth Reduction

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Solution Overview

Problem

Existing surveillance systems face challenges in improving surveillance quality while minimizing communication bandwidth between vehicles and surveillance centers, as sending raw images increases data transmission demands.

Innovation Solution

A data processing apparatus and method that acquires analysis data from vehicles, including object type and position information, and requests images from vehicles only when necessary, reducing unnecessary data transmission by generating reconfigured images for visualization at the surveillance center.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If captured images are sent to the surveillance center for visualization, then surveillance quality is improved, but communication bandwidth is increased

Engineering Contradiction:

Improvesurveillance qualityVSAvoidcommunication bandwidth

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential information (object type and position data) from the captured images and transmits this extracted information to the surveillance center, rather than transmitting the entire images. This allows surveillance quality to be maintained through accurate object detection while significantly reducing communication bandwidth requirements.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a simplified representation (copy) of the image content in the form of structured data (type data and position data) that captures the essential surveillance information without requiring transmission of the full image data, thereby reducing bandwidth while maintaining surveillance effectiveness.

Inventive Principle:

Principle #26Copying

2Quantity of substance

If analysis data are processed in the vehicle, then communication bandwidth is reduced, but surveillance quality may deteriorate

Engineering Contradiction:

Improvecommunication bandwidthVSAvoidsurveillance quality

Core Design Contradiction:

Quantity of substanceVSMeasurement precision

Solution Approach 1:

The system implements feedback by having the surveillance center request additional captured images when the processed analysis data indicates a need for more detailed information. This allows the system to operate efficiently with reduced bandwidth under normal conditions while maintaining the capability to obtain full image quality when surveillance requirements demand it.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent creates a dynamic system where the level of data transmission adapts based on surveillance needs. The vehicle processes images locally and transmits only essential data under normal conditions, but can transmit full images when the surveillance center requests them, making the system flexible and adaptable to varying surveillance requirements.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20230091500A1Data processing apparatus, sending apparatus, and data processing method

Publication Date: 2023.03.23 NEC CORP

AI summary

An image generation apparatus (20) includes an acquisition unit (210) and a data processing unit (220). The acquisition unit (210) repeatedly acquires analysis data from at least one sending apparatus (10). The analysis data include at least type data and relative position data. The data processing unit (220) generates, each time analysis data are acquired, a reconfigured image by using the analysis data, and causes a display (230) to display the reconfigured image. Further, the data processing unit (220) requests the sending apparatus (10) for a captured image, when a criterion is satisfied.