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Robust watermarking algorithm based on mahalanobis distance and ISS feature point for 3D point cloud data

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Abstract

With the swift progression of three-dimensional (3D) modeling and multimedia technology, the unauthorized duplication and manipulation of 3D point cloud data has become more prevalent. Existing watermarking algorithms designed for 3D point cloud data lack robustness against rotation, cropping, and random point addition attacks. To address the aforementioned issues, we propose a robust watermarking algorithm based on the Mahalanobis distance (MD) and feature point extraction, including zero-watermarking algorithm based on MD and watermarking algorithm based on the Intrinsic Shape signatures (ISS) feature points. Firstly, calculate the MD of point cloud data and use it to construct feature matrix. A zero-watermark image is constructed through the XOR operation of the feature matrix and the copyright information matrix. Secondly, ISS feature points can be extracted from point cloud data, which using the X and Y coordinates of the feature points as indexes. The color information of the feature points is used as host data to embed the watermark. The scale invariance of MD and the stability of ISS feature points augment the robustness of the algorithm. Experimental results demonstrate that the scheme we propose exhibits strong robustness against geometric attacks, simplification attacks, cropping attacks, reordering, and noise attacks while ensuring point cloud data coordinates are lossless.

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Data has been uploaded https://github.com/Tantaoz/Code-of-3D-piont

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Funding

This work was supported by the National Natural Science Foundation of China [grant numbers 42271430]; the Guidance Project of Universities in Gansu Province [grant numbers 2019C-04]; and the National Natural Science Foundation of China [grant numbers 41761080].

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Authors

Contributions

Ziyi Zhang: proposed the idea, designed methods and the core part of the code. Liming Zhang: optimizes idea and method. Pengbin Wang and Mingwang Zhang: provided assistance with coding and experiments. Tao Tan: gave advices on method design and manuscript writing. All authors contributed to the writing of the manuscript.

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Correspondence to Liming Zhang.

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The authors declare no competing interests.

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Communicated by: H. Babaie

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Zhang, Z., Zhang, L., Wang, P. et al. Robust watermarking algorithm based on mahalanobis distance and ISS feature point for 3D point cloud data. Earth Sci Inform 17, 783–796 (2024). https://doi.org/10.1007/s12145-023-01206-1

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  • DOI: https://doi.org/10.1007/s12145-023-01206-1

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