There are many types of visual sensors, such as 3D vision sensor technology and smart vision sensor technology. Many people may not be particularly familiar with 3D vision sensor technology. The following is an introduction to the application and introduction of 3D vision sensor technology.
When visual sensing technology becomes a hot topic, in order to pursue a more stereoscopic picture, but when watching stereoscopic movies, we will inevitably complain about the trouble of wearing glasses and worry about hurting the eyes. At this time, 3D stereo imaging has become a hot research, which will be realized. The presentation of the 3D picture can view the stereoscopic image without wearing the stereo glasses. The 3D signal [2] is a spatial signal of three-dimensional coordinates. In a precise visual definition, a 3D camera should be an image with three spatial components.
However, in a broad sense, a sequence of video signals can be considered as a 3D signal, including a two-dimensional spatial variable and a one-dimensional time component. In a true 3D video signal, the image is an image with three spatial components; sometimes the 3D video signal can be viewed as a 4-dimensional spatial signal with three spatial components and one temporal component.
The so-called 3D games and movies are not really 3D images. This is because the film is shot with a single-lens camera, the game is made using 3D software technology, and the currently displayed screen is 2D [3], so the production to display is flat.
The acquisition of 3D image information is based on the acquisition and quantification of image information by some image sensors. These image sensors have images that directly acquire visible light, and indirectly acquire image information by detecting radiation, infrared rays, X-rays, or ultrasonic waves. Different sensor technologies have different resolutions, precisions, and noises, so they are useful for extracting information from image sensors.
3D vision sensors have a wide range of uses, such as multimedia shou machines, webcam, digital cameras, robotic visual navigation, automotive security systems, biomedical pixel analysis, human-machine interface, virtual reality, surveillance, industrial inspection, wireless remote sensing, Microscopy, astronomical observation, marine autonomous navigation, scientific instruments, etc.
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