使用GPS定位和图像匹配技术对水下声学图像的三维改造

使用GPS定位和图像匹配技术对水下声学图像的三维改造
摘要：在这篇文章中，我们的重点是如何从空间系列的二维水下声学图像中重建一个三维结构的海底。我们开发了一种方法，即使用GPS定位系统和图像匹配技术相结合的方法从不同的观点来合成两个或两个以上的不同的声学图像，然后从空间系列的图像中提取数据。按照空间位置的关系，我们利用这些数据能够评估出三维结构。我们已经进行了一次实验，即用DF1000侧扫描声纳和JRC的DGPS2000全球定位系统在日本濑户内海进行实验，结果表明该方法是有效的。

英文原文：
3-D Reconstruction of the Underwater Acoustic Images Using the GPS Positioning and the Image Matching Technology
Abstract-In this paper we focus on how to reconstruct a 3-D structure of the seabed from a spatial series of the 2-D underwater acoustic images. We developed an original method, which uses a combination of the GPS positioning and the image matching technology to synthesize two or more different acoustic images taken from different viewpoints, and then extract the range data from the spatial series of images, According to the relation of the spatial position we can estimate 3-D structure with these range data. We have carried out an experiment with Edge Tech’s DF1000 side-scan sonar and JRC’s DGPSZOO GPS in Seta inland sea, Japan, and the result shows the method is valid.

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