眼睛像素（Eye pixels）.docVIP

眼睛像素（Eye pixels） Eyes - a 570 million pixel camera for everyone Editors note: Man created the camera, and later invented the digital camera, in every effort to retain the beauty that the eyes see. With the continuous progress of technology, the pixel value of digital cameras is increasing, the sensitivity is higher and higher, and the details of the recording become more and more. It is no exaggeration to say that digital cameras are changing everyones life and that we have a way to record the world. Man created the camera, and later invented the digital camera, in every effort to retain the beauty that the eyes see. With the continuous progress of technology, the pixel value of digital cameras is increasing, the sensitivity is higher and higher, and the details of the recording become more and more. It is no exaggeration to say that digital cameras are changing everyones life and that we have a way to record the world. Now, tens of millions of pixel digital cameras are no longer news, and the high sensitivity of ISO 3200 is also possible. Have you ever wondered if the digital cameras ability is already beyond your naked eye? Next, we will compare the naked eye and the digital camera in four ways. pixel value Pixel values are always the most critical parameter of a digital camera. At present, 5 million pixel is the basic minimum configuration of the digital camera, a little bit better is seven or eight million pixels, pixel professional digital SLR has to do. So, how many megapixels does the human eye actually have? First of all, we have to understand the fact that the CCD/CMOS sensor of digital cameras is flat, while the human eye is light-sensitive and the nerves are circular in shape! So we have to do the arc / chord conversion first. The sharpness of the human eye can be defined as 1/a, in which a=x/ arc points. What exactly does x stand for? Different scholars have different answers. In this regard, we may as well choose a widely accepted view. Imagine a grid t