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We define a survey shot to be one where the images consist of a number of fairly unordered images, typically a series of images taken by a photographer wandering around a set with a digital still camera, instead of a film/movie camera. These can also be referred to as witness cameras. Such shots can provide a variety of views not available through the principal photography, and high-resolution still cameras with excellent prime lenses can be used.
Unlike a normal shot which have a lot of continuity from one image to the next, the stills are often from substantially different vantage points and might not be organized in a specific linear sequence.
Note : what we're describing here is different than having a survey for a set, which may consist of anything from a few tape measurements to a Lidar point cloud. SynthEyes can work with those, but that's not the subject of this section!
Once you've tracked a survey shot, you'll usually use it as part of a multi-shot setup, or in conjunction with measured 3-D data.
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