Camera Pose Estimation from Moving Object Map Matching

Solution Overview

Problem

Manually determining the location of multiple cameras installed in a facility is time-consuming and labor-intensive, and relying on design drawings can result in low accuracy.

Innovation Solution

A camera location estimation apparatus that uses a moving object to acquire map information, detect its location, and match it with camera images to automatically estimate the camera's location and angle within the facility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual checking and registration of camera locations is performed, then the location information can be obtained, but the process requires a lot of manpower and time

Engineering Contradiction:

Improvecamera location accuracyVSAvoidtime for manual registration

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical process of checking and registering camera locations with an automated image processing system. The system uses images captured by the cameras themselves to automatically detect and determine camera locations, eliminating the need for manual field surveys and data entry while maintaining high accuracy through computational analysis of image features and geometric relationships

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables cameras to automatically contribute to their own location determination by capturing images that are processed to extract location information. The cameras serve dual purposes: both capturing surveillance images and providing the data needed for their own location registration, thereby eliminating the need for separate manual location checking processes

Inventive Principle:

Principle #25Self-service

2Measurement precision

If manual checking and registration of camera locations is performed, then the location information can be obtained, but the process is labor-intensive

Engineering Contradiction:

Improvecamera location accuracyVSAvoidoperational complexity

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The patent replaces the manual mechanical process of checking and registering camera locations with an automated image processing system. The system uses images captured by the cameras themselves to automatically detect and determine camera locations, eliminating the need for manual field surveys and data entry while maintaining high accuracy through computational analysis of image features and geometric relationships

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables cameras to automatically contribute to their own location determination by capturing images that are processed to extract location information. The cameras serve dual purposes: both capturing surveillance images and providing the data needed for their own location registration, thereby eliminating the need for separate manual location checking processes

Inventive Principle:

Principle #25Self-service

3Ease of operation

If design drawings are used to determine camera locations, then the process is simple, but the accuracy is low

Engineering Contradiction:

Improveease of location determinationVSAvoidcamera location accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent replaces reliance on design drawings with an automated image processing system that calculates camera locations based on actual captured images. The system uses geometric relationships and feature matching in images to determine precise camera positions, eliminating the inaccuracies inherent in manual transcription from design drawings while maintaining operational simplicity through automation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables cameras to automatically contribute to their own location determination by capturing images that are processed to extract location information. The cameras serve dual purposes: both capturing surveillance images and providing the data needed for their own location registration, thereby eliminating the need for separate manual location checking processes

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12541875B2Camera location estimation apparatus, method and storage medium

Publication Date: 2026.02.03 KK TOSHIBA

AI summary

According to one embodiment, a camera location estimation apparatus including a processor included to acquire map information indicating a map of a facility, acquire first locations of a moving object on the map indicated by the map information in response to movements of the moving object moving within the facility, acquire a plurality of images containing the moving object, the plurality of images being captured by a camera, and estimate a location of the camera on the map indicated by the map information so that each of the first locations of the moving object and a second location of the moving object on an image containing the moving object located at the first location among the plurality of images match with each other.