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The multiple-camera setup, multiple-camera mode of production, multi-camera or simply multicam is a method of filmmaking, television production and video production. Several cameras—either film or professional video cameras —are employed on the set and simultaneously record or broadcast a scene.
The starting point for focus stacking is a series of images captured at different focus distances; in each image different areas of the sample will be in focus.
This can be done with two separate side-by-side cameras; with one camera moved from one position to another between exposures; with one camera and a single exposure by means of an attached mirror or prism arrangement that presents a stereoscopic image pair to the camera lens; or with a stereo camera incorporating two or more side-by-side lenses.
Tone mapped high-dynamic-range (HDR) image of St. Kentigern's Church in Blackpool, Lancashire, England. In photography and videography, multi-exposure HDR capture is a technique that creates high dynamic range (HDR) images (or extended dynamic range images) by taking and combining multiple exposures of the same subject matter at different exposures.
Motion control camera rigs are also used in still photography with or without compositing; for example in long exposures of moving vehicles. [ 1 ] [ 2 ] Today's computer technology allows the programmed camera movement to be processed, such as having the move scaled up or down for different sized elements.
Long-exposure photography captures one element that conventional photography does not: an extended period of time. The paths of bright moving objects become clearly visible—clouds form broad bands, vehicle lights draw bright streaks, stars leave trails in the sky, and water waves appear smooth. Only bright objects leave visible trails ...
This process included a lengthy alignment process in which the vision engineer would work with the camera operator, to adjust the settings on both the actual camera and the CCU in tandem. [1] During production, it was the vision engineers' job to operate the CCUs and control both the exposure and the colour balance .
Diffuse optical imaging – using near-infrared light to generate images of the body. Diffusion-weighted imaging – a type of MRI that uses water diffusion. Endoscopy – a procedure using an endoscope to examine the interior of a hollow organ or cavity of the body. Fluorescence lifetime imaging – using the decay rate of a fluorescent sample.