Field-of-View Image Comparison Using Position and Orientation Data
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Solution Overview
Problem
Existing image display systems struggle to quickly and accurately display images corresponding to a particular place, making it difficult to detect suspicious objects in security scenarios where personnel changes frequently, as they require time to search through multiple images captured from different directions.
Innovation Solution
An image display system that utilizes a mobile terminal and server to acquire and display images based on both position and orientation, enabling quick and accurate detection of differences between current and past images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If images are stored and provided based only on position information, then a large number of images can be accumulated and accessed, but it takes much time to search through multiple images captured from different directions to find the specific image of a particular place
Solution Approach 1:
The patent segments the image database by adding orientation information as a separate dimension alongside position information. Each image is tagged with both location coordinates and directional data (azimuth, elevation), allowing the system to divide the search space from a single large unstructured set into organized segments that can be quickly filtered and retrieved based on specific directional queries.
2Adaptability or versatility
If security surveys are performed by different personnel at different times, then comprehensive coverage can be achieved, but it becomes difficult to communicate and compare findings between personnel, leading to missed or overreacted suspicious objects
Solution Approach 1:
The patent creates a standardized digital copy of the survey environment by capturing images with embedded position and orientation metadata. This standardized format serves as a universal reference that any personnel can access and compare against, replacing inefficient verbal or written communication with direct visual comparison of annotated images that clearly show suspicious objects and their locations.
3Volume of stationary object
If all images captured from a position are stored without orientation information, then storage requirements are reduced, but the system cannot quickly display the specific image corresponding to the user's field of view
Solution Approach 1:
The patent adds orientation information as additional dimensions (azimuth angle and elevation angle) to the traditional position-based image organization. This dimensional expansion allows the system to precisely identify and retrieve the specific image matching the user's current field of view by comparing both position and orientation coordinates, dramatically improving retrieval speed without significantly increasing storage requirements since the same images are used, just better organized.
Data Source
AI summary
The present invention provides an image display system, a terminal, a method, and a program that can quickly and accurately display an image corresponding to a particular location. An image display system according to one example embodiment of the present invention includes: a current image acquisition unit configured to acquire a first image captured by a mobile terminal; an information acquisition unit configured to acquire information including a position and an orientation of the mobile terminal that has captured the first image; a past image acquisition unit configured to acquire a second image based on the position and the orientation of the mobile terminal and a position and an orientation associated with the second image stored in the past in a storage device; and a difference detection unit configured to detect a difference between the first image and the second image.