Search results
Results from the WOW.Com Content Network
Machine vision is the technology and methods used to provide imaging -based automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance, usually in industry. Machine vision refers to many technologies, software and hardware products, integrated systems, actions, methods and expertise.
For a normal lens focused at infinity, the diagonal (or horizontal or vertical) field of view can be calculated as: F O V = 2 × arctan ( sensor size 2 f ) {\displaystyle \mathrm {FOV} =2\times \arctan \left({\frac {\text{sensor size}}{2f}}\right)}
Humphrey visual field analyser. Humphrey field analyser ( HFA) is a tool for measuring the human visual field that is commonly used by optometrists, orthoptists and ophthalmologists, particularly for detecting monocular visual field. [1] The results of the analyser identify the type of vision defect.
Circle of confusion. In optics, a circle of confusion (CoC) is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as disk of confusion, circle of indistinctness, blur circle, or blur spot . In photography, the circle of confusion is used to determine the depth ...
In order to determine the power of intraocular lens, several values need to be known: Eye's axial length (AL) Corneal power (K) Postoperative IOL position within the eye known as estimated lens position (ELP) The anterior chamber constant: A-constant or another lens related constant
Normal lens. In machine vision a normal or entrocentric lens is a lens that generates images that are generally held to have a "natural" perspective compared with lenses with longer or shorter focal lengths. Lenses of shorter focal length are called wide-angle lenses, while longer focal length lenses are called telephoto lenses. O
Angle of view can also be determined using FOV tables or paper or software lens calculators. [5] Log-log graphs of focal length vs crop factor vs diagonal, horizontal and vertical angles of view for film or sensors of 3:2 and 4:3 aspect ratios.
A lenticular lens is an array of lenses, designed so that when viewed from slightly different angles, different parts of the image underneath are shown. [1] [2] [ failed verification – see discussion ] The most common example is the lenses used in lenticular printing , where the technology is used to give an illusion of depth, or to make ...
A lens controller is device that controls motorized photographic lens functions such as zoom, focus, and iris opening . Lens controllers can be found in still camera photographic lenses and as stand-alone units in machine vision , remote sensing , optoelectronics systems, and security applications.
Vision processing unit. Vision-guided robot systems. Visual temporal attention. Categories: Applications of computer vision. Computer vision. Robotics. Hidden category: Commons category link is on Wikidata.