What does CCD mean in remote sensing and photogrammetry? Seek a detailed explanation.

CCD, English full name: charge coupled device, Chinese full name: charge coupled device. It can be called CCD image sensor. CCD is a semiconductor device, which can convert optical images into digital signals. The tiny photosensitive substances implanted on CCD are called pixels. The more pixels a CCD contains, the higher the image resolution it provides. The function of CCD is just like film, but it converts image pixels into digital signals. There are many neatly arranged capacitors on CCD, which can sense light and convert images into digital signals. Through the control of external circuit, each small capacitor can transfer its charge to the adjacent capacitor.

The explanation of Baidu Encyclopedia. CCD in digital camera and CCD in remote sensing photogrammetry are the same thing.