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发表刊物：Remote Sensing

关键字：marine observation; underwater hyperspectral imaging; liquid lens; focusing transfer; spectral and radiometric calibration

摘要：The underwater hyperspectral imager enables the detection and identification of targets on the seafloor by collecting high-resolution spectral images. The distance between the hyperspectral imager and the targets cannot be consistent in real operation by factors such as motion and fluctuating terrain, resulting in unfocused images and negative effects on the identification. In this paper, we developed a novel integrated underwater hyperspectral imaging system for deep sea surveys and proposed an autofocus strategy based on liquid lens focusing transfer. The calibration tests provided a clear focus result for hyperspectral transects and a global spectral resolution of less than 7 nm in spectral range from 400 to 800 nm. The prototype was used to obtain spectrum and image information of manganese nodules and four other rocks in a laboratory environment. The classification of the five kinds of minerals was successfully realized by using a support vector machine. We tested the UHI prototype in the deep sea and observed a Psychropotidae specimen on the sediment from the in situ hyperspectral images. The results show that the prototype developed here can accurately and stably obtain hyperspectral data and has potential applications for in situ deep-sea exploration.

全部作者：李德威,刘兆军

第一作者：刘博涵

论文类型：期刊论文

通讯作者：门少杰

学科门类：工学

文献类型：J

卷号：15

期号：3

页面范围：544

ISSN号：2072-4292

是否译文：否

发表时间：2023-01-01

收录刊物：SCI