For biological vision, people have long noticed that almost biological organisms have two eyes, and when we use our eyes to observe objects at the same time, we also have the feeling of depth or distance. The reason why stereoscopic film has a realistic depth is to follow the principle of stereo vision.
When shooting a 3D stereoscopic movie, two cameras are used to shoot at the same time. During the screening, the images shot by the two cameras are simultaneously projected onto the screen, and the principle of polarized light is used so that the eyes of the two cameras can be seen by the left and right cameras respectively. The image, so that people feel the real three-dimensional scene three-dimensional.
In a computer stereoscopic vision system, industrial cameras can also be used to obtain two images of the same scene from different angles, and then a three-dimensional reconstruction principle is used to reconstruct the three-dimensional shape of the scene by the computer and restore the spatial position information of the object. Binocular stereo vision system is one of the key technologies of computer vision. It is also one of the most stable and reliable ways to acquire three-dimensional data of objects in the visual system. Two industrial cameras are used to imitate the three-dimensional function of human eyes. Research hotspots in the visual field.
The binocular stereo vision measurement method has the advantages of high efficiency, suitable precision, simple system structure, and low cost, and is very suitable for on-site production and non-contact product detection and quality control of manufacturing sites. In the measurement of moving objects (including animals and human body shapes), the stereoscopic vision method is an efficient measurement method because the image acquisition is completed instantaneously.