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Proceedings Paper

A multi-resolution fractal additive scheme for blind watermarking of 3D point data
Author(s): Mark Rahmes; Kathy Wilder; Kevin Fox
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Paper Abstract

We present a fractal feature space for 3D point watermarking to make geospatial systems more secure. By exploiting the self similar nature of fractals, hidden information can be spatially embedded in point cloud data in an acceptable manner as described within this paper. Our method utilizes a blind scheme which provides automatic retrieval of the watermark payload without the need of the original cover data. Our method for locating similar patterns and encoding information in LiDAR point cloud data is accomplished through a look-up table or code book. The watermark is then merged into the point cloud data itself resulting in low distortion effects. With current advancements in computing technologies, such as GPGPUs, fractal processing is now applicable for processing of big data which is present in geospatial as well as other systems. This watermarking technique described within this paper can be important for systems where point data is handled by numerous aerial collectors including analysts use for systems such as a National LiDAR Data Layer.

Paper Details

Date Published: 28 May 2013
PDF: 8 pages
Proc. SPIE 8757, Cyber Sensing 2013, 87570G (28 May 2013); doi: 10.1117/12.2009020
Show Author Affiliations
Mark Rahmes, Harris Corp. (United States)
Kathy Wilder, Harris Corp. (United States)
Kevin Fox, Harris Corp. (United States)

Published in SPIE Proceedings Vol. 8757:
Cyber Sensing 2013
Igor V. Ternovskiy; Peter Chin, Editor(s)

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