Reference Image Alignment for Mobile Object Change Detection
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Solution Overview
Problem
Mobile devices with cameras face challenges in analyzing changes in objects over time due to inconsistent distances and angles of image capture, making it difficult to accurately assess changes.
Innovation Solution
A network device with an image management application that receives requests for images from client devices, provides two images of objects - a reference image and a second image acquired at a specified distance, allowing users to discern changes by displaying them together, with visual or audible indications to ensure proper alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple images of the same object are captured over time using mobile devices, then the ability to monitor object changes is improved, but the accuracy of change analysis deteriorates due to inconsistent capture distances and angles
Solution Approach 1:
The patent introduces a reference image as an intermediary standard against which all subsequent images are compared. This reference image serves as a mediator that establishes a consistent baseline perspective, allowing accurate change detection by eliminating variations in capture distance and angle. The system captures a reference image first, then uses it to guide the positioning and framing of all subsequent images of the same object.
2Adaptability or versatility
If images are captured at different distances and angles, then capturing flexibility is improved, but the reliability of change detection deteriorates
Solution Approach 1:
The patent applies preliminary action by capturing a reference image before capturing subsequent images of the object. This reference image is acquired first and establishes the standard perspective, distance, and angle that all subsequent images must match. By performing this preliminary capture and storing it for comparison, the system ensures that all future images are evaluated against a consistent baseline, thereby maintaining reliability while allowing flexible capture timing.
Data Source
AI summary
A reference image of one or more objects is displayed on the display of a mobile device in a manner that allows a user of the mobile device to simultaneously view the reference image and a preview image of the one or more objects currently in a field of view of a camera of the mobile device. An indication is provided to the user of the mobile device whether the camera of the mobile device is currently located within a specified amount of a distance at which the reference image was acquired. In response to a user request, the camera acquires a second image of the one or more objects and optionally a distance between the camera and the one or more objects at the time the second image was acquired is recorded. An image management application provides various functionalities for accessing and managing image sequences.