OSD Superimposition Management for Image Analysis Accuracy

Solution Overview

Problem

In monitoring camera systems, superimposed on-screen display (OSD) information can interfere with image analysis accuracy, making it difficult for users to set up image analysis settings without realizing the impact on analysis results.

Innovation Solution

An apparatus and method that include a first acquisition unit for images, an analysis unit for performing image analysis, a second acquisition unit for acquiring parameters, a third acquisition unit for superimposition information, an identification unit to recognize superimposition information influencing analysis, and a processing unit to manage the display of identified superimposition information, ensuring it does not interfere with the analysis process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If OSD information is superimposed on the captured image, then additional information such as clock time and camera name can be displayed, but the OSD information may overlap with the face display area and make it difficult to view the image

Engineering Contradiction:

Improveinformation display completenessVSAvoidface recognition accuracy

Core Design Contradiction:

Loss of informationVSMeasurement precision

Solution Approach 1:

The system performs preliminary detection of the face display area before superimposing OSD information. By identifying the face area in advance, the system can determine appropriate display positions for OSD information that avoid overlapping with the face, thereby preventing interference with face recognition while still providing necessary information display.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system applies different display strategies to different regions of the image. The face display area is protected from OSD superimposition, while other regions can display OSD information normally. This localized approach ensures that critical areas remain clear for analysis while maintaining information display in non-critical areas.

Inventive Principle:

Principle #3Local quality

2Loss of information

If OSD information is superimposed on the image before analysis, then the image can be displayed with additional information, but the analysis result may be influenced by the OSD content

Engineering Contradiction:

Improveinformation display completenessVSAvoidanalysis accuracy

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The system performs preliminary detection of the face display area before superimposing OSD information. By identifying the face area in advance, the system can determine appropriate display positions for OSD information that avoid overlapping with the face, thereby preventing interference with face recognition while still providing necessary information display.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system applies different display strategies to different regions of the image. The face display area is protected from OSD superimposition, while other regions can display OSD information normally. This localized approach ensures that critical areas remain clear for analysis while maintaining information display in non-critical areas.

Inventive Principle:

Principle #3Local quality

3Ease of operation

If image analysis is performed on images with OSD information, then the analysis can be conducted on displayed images, but users cannot realize that OSD display influences analysis accuracy

Engineering Contradiction:

Improveoperation simplicityVSAvoidanalysis accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system provides feedback to users regarding the impact of OSD information on analysis accuracy. By notifying users when OSD information may interfere with analysis, the system enables informed decision-making about whether to proceed with analysis on images containing OSD, thus maintaining operational simplicity while improving analysis reliability.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11528423B2Apparatus, method, and storage medium

Publication Date: 2022.12.13 CANON KK

AI summary

An apparatus includes a first acquisition unit configured to acquire an image, an analysis unit configured to perform an analysis process on the acquired image, a second acquisition unit configured to acquire a parameter for use in the analysis process on the image, a third acquisition unit configured to acquire superimposition information superimposed on the acquired image, an identification unit configured to, based on the acquired parameter, identify superimposition information that influences the analysis process on the image, and a processing unit configured to perform a process regarding drawing of the identified superimposition information.