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Guangyao Ma

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Proceedings Article | 11 March 2015 Paper

Door and window image-based measurement using a mobile device

Guangyao Ma, Manishankar Janakaraj, Gady Agam

Proceedings Volume 9411, 94110A (2015) https://doi.org/10.1117/12.2083495

KEYWORDS: 3D modeling, Calibration, Cameras, Mobile devices, Target detection, Corner detection, 3D metrology, 3D image processing, Image visualization, Visualization

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We present a system for door and window image-based measurement using an Android mobile device. In this system a user takes an image of a door or window that needs to be measured and using interaction measures specific dimensions of the object. The existing object is removed from the image and a 3D model of a replacement is rendered onto the image. The visualization provides a 3D model with which the user can interact. When tested on a mobile Android platform with an 8MP camera we obtain an average measurement error of roughly 0.5%. This error rate is stable across a range of view angles, distances from the object, and image resolutions. The main advantages of our mobile device application for image measurement include measuring objects for which physical access is not readily available, documenting in a precise manner the locations in the scene where the measurements were taken, and visualizing a new object with custom selections inside the original view.

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