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Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
In 3D computer graphics, ray tracing is a technique for modeling light transport for use in a wide variety of rendering algorithms for generating digital images . On a spectrum of computational cost and visual fidelity, ray tracing-based rendering techniques, such as ray casting, recursive ray tracing, distribution ray tracing, photon mapping ...
Computer stereo vision is the extraction of 3D information from digital images, such as those obtained by a CCD camera. By comparing information about a scene from two vantage points, 3D information can be extracted by examining the relative positions of objects in the two panels. This is similar to the biological process of stereopsis .
da Vinci Systems was an American digital cinema company founded in 1984 in Coral Springs, Florida [1] as a spinoff of Video Tape Associates. It was known for its hardware-based color correction products, GPU -based color grading, digital mastering systems, and film restoration and remastering systems. It was one of the earliest pioneers in post ...
The history of the single-lens reflex camera (SLR) begins with the use of a reflex mirror in a camera obscura described in 1676, but it took a long time for the design to succeed for photographic cameras. The first patent was granted in 1861, and the first cameras were produced in 1884, but while elegantly simple in concept, they were very ...
Sodium vapor process aka "yellowscreen" method. The sodium vapor process (occasionally referred to as yellowscreen) is a photochemical film technique for combining actors and background footage. It originated in the British film industry in the late 1950s and was used extensively by Walt Disney Productions in the 1960s and 1970s as an ...
In the field of computer vision, any two images of the same planar surface in space are related by a homography (assuming a pinhole camera model ). This has many practical applications, such as image rectification, image registration, or camera motion—rotation and translation—between two images. Once camera resectioning has been done from ...
The rollers on a Steenbeck flatbed editor. A flatbed editor is a type of machine used to edit film for a motion picture.. Picture and sound rolls are placed onto separate motorized disks, called "plates," and then threaded through picture and sound transports, each of which has sprocket rollers that transport the film or magnetic stock forwards or backwards at variable or fixed speeds while ...
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