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โ2-D Planar Trackers Too
As well as the 3-D planar trackers we have been describing, SynthEyes also offers 2-D planar trackers. The two are similar in appearance, but a 2-D planar tracker does not specify a 3-D position, an aspect ratio, or a camera field of view. Whereas a 3- D planar tracker allows only quite specific inter-related corner locations that correspond to a 3-D configuration, a 2-D planar tracker allows you to place the corners arbitrarily.
Two-dimensional planar trackers are essentially a much fancier form of regular SynthEyes trackers, one that allows you to
๏ท set up crazy shapes,
๏ท rotate,
๏ท scale,
๏ท do masking,
๏ท go partially off the edge,
๏ท etc.
A 2-D planar tracker produces the same kind of 2-D path as a regular SynthEyes match, spot, or symmetry tracker. That's true of 3-D planar trackers as well: you can use 2- or 3-D planar trackers in a conventional 3-D solve or as a zero-weighted tracker (ZWT).
Both 2- and 3-D planar trackers can also be exported as a 4-corner pin to applications such as After Effects that have a suitable 4-corner exporter. If you are more comfortable in the 2-D environment of After Effects, this gives you a way to move your planar tracks into After Effects with a minimum of fuss (ie, no requirement to match field of view).
You can produce four additional conventional trackers from each 2-D (or 3-D) planar tracker, in order to use them all in a conventional 3-D solve. See Using Planar Trackers with Regular 3-D Solves.
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