In optics, particularly as it relates to film and photography, the optical phenomenon known as depth of field (DOF), is the distance about the plane of focus (POF) where objects appear acceptably sharp in an image. Although an optical imaging system can precisely focus on only one plane at a time, the decrease in...
Generally speaking, 3D Time of Flight uses can be categorized into Gesture and Non-Gesture. The Gesture applications emphasize human interactions and speed; while non-gesture applications emphasize measurement accuracy. Gesture applications translate human movements (faces, hands, fingers or whole-body) into symbolic directives to command gaming consoles, smart televisions, or portable computing...
The principle of machine vision system is utilizing computer or image processor and related equipment to simulate the function of human vision ,then extract information from the image of object for processing, obtain relevant visual information, understand it, and finally use it for practical detection and control fields etc. Machine vision is a technology to...
Iris recognition is a kind of human biometric recognition technology, which is based on the iris in the eye for identity recognition. It mainly used in security equipment (such as access control) and places with strict requirements for confidentiality. The appearance of human eyes is composed of sclera, iris and pupil. Sclera is the white part of the...
With the use of infrared transmission and receiving modules, 3D imaging technology can realize the collection of depth datas（such as position and details） of the shooting object and then restore the real scene. At present, there is three types of 3D imaging technology: (1)Structured Light: Typical companies include Apple(who...
1.Measurement of Mechanical Parts The most common application of telecentric lens is measuring the dimensions of some precise mechanical parts, such as springs, screws and nuts etc. 2.Measurement of Plastic Parts Another main application of telecentric lens is measuring plastic parts like rubber seals, O-rings, plastic caps and so on. Since these...
Telecentric Lens is designed to correct parallax caused by traditional machine vision lens. It won’t change the magnification of image within a certain range of object distance, which is an important application in cases where the object is not on the same surface. Due to its unique parallel optical...
An aspheric lens is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens. The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical...