Traditional Culture Encyclopedia - Photography major - Principle and effect of 3D camera

Principle and effect of 3D camera

A 3D digital camera is equipped with two lenses. When we look at objects with our eyes, we capture them from a slightly different angle. For this reason, the left and right images are slightly different. After these two images are synthesized in the brain, we can grasp the outline of the object three-dimensionally. Therefore, in theory, the camera can reproduce stereoscopic images by installing left and right lenses. However, the original camera technology can not achieve the function close to the human eye. For example, even if the left and right shutters are opened and closed at the same time, there will be a slight time deviation, which will lead to the deviation of the left and right images.

This time, the company's newly developed portrait processor "Real Camera Engine (Real)

picture

Engine) The new system adopts 3D, and the deviation is successfully controlled within 0.00 1 second. This processor also has the function of adjusting the shooting conditions of the left and right portraits, such as focus, brightness and color, to almost the same. In the past, it was difficult to correctly pass through the center lines of the left and right lenses near the subject. The new system overcomes this difficulty by using the newly developed "real 3D lens system".

To uncover the principle of 3D image, it is very simple to simplify its principle. We can do an experiment: hold a pen or chopsticks with both hands at the same time, close one eye and use only the other eye, and try to align the pens or chopsticks with each other. You will find it more difficult to finish this action than you think. An object seen by one eye is a two-dimensional image. Using visual clues such as size and overlap provided by objects, we can judge the order of these objects in front of the background, but we can't know how far they are. Fortunately, the human visual system is based on two eyes. When two eyes arranged horizontally look at the same object, the images they see are slightly different because of the slightly different angles. This is called parallax. The brain synthesizes these two pictures and automatically synthesizes and analyzes them to form a kind of depth vision. At the same time, the brain can also judge the depth and distance of the object according to the potential difference between the same object in the two received images. The farther away from the eyes, the smaller the potential difference, and vice versa. This is the basic principle of 3D images.