Abstract: Underwater sonar imaging is a key technology in modern ocean exploration and maritime defense. However, distortions often occur during transmission or compression due to the harsh underwater ...

A scuba diver until age 79, Georgette Apol Douwma photographed reefs around the world and then transformed her images into dazzling kaleidoscopic designs. Photographer Georgette Apol Douwma’s ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...

Abstract: As a documentary method, photography can only play the role of recording and cannot exclude the flaws in the picture. As a means of remedial and beautification, photography satisfies the ...