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This paper presents the design of an underwater staring spectral imaging system, which has 31 different color filters that covers the spectral range of 400 nm–700nm. The filters are settled on 2 filter wheels so that the size and weight of the system is deduced greatly, which is essential for underwater applications. Experiments are conducted to test the system, and the results show that the system...
Given the widely adoption of screen and camera in many electronic devices, the visible light communication (VLC) over screen-to-camera channel emerges as a novel short range communication technique in recent years. Active research explores various ways to convey messages over screen-camera channel, such as barcode and unobtrusive optical pattern. However, with the prevalence of LED screens of wide...
Perceiving color in water medium is always challenging due to the dense non-uniform attenuation and scattering of light across the visible spectrum. This paper presents a color restoration method for underwater objects based on multispectral images. To begin with, underwater multispectral images are obtained and restored with the influence of attenuation and scattering being eliminated by an in-suit...
This paper presents an approach to estimate jacket launching angle using a computer vision approach. The launching angle is between the bottom surface of the jacket and sea surface. It is a very important parameter for the launching. First, the approach computes the homography and the vanishing line of the jacket base plane by the imaged feature lines in the jacket base plane. Then, the launching...
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