Correction for underwater image
Tao Liu · Journal of Heilongjiang Institute of Science and Technology · 2008
The object located in physical space with water medium in the case of imaging underwater and the imaging plane operating in image space with air medium result in greater aberration of viewing lens.This paper discusses the physical effects of image distortion and offers an algorithm to transfer underwater image to image-without-water,especially the principle of position related to camera and waterproof house.When the boundary is at the focus of lens(outside the camera),there exists one-to-one correspondence between the underwater image and the image-without-water.The image to the image-without-water can be transferred only with one underwater image.When the distance between the focus point and water and the focus of lens are both smaller than the distance from the lens to the object,it is still possible to use the result above in a good approximation.