Rolling-Shutter Skew Can Make Motion Tracking a Drag
It’s a bit of a hassle for the VFX business because the CMOS artifacts can introduce a kind of wobbling effect to elements in the image, making it hard to do good motion tracking. That’s why The Foundry, which makes motion-tracking plug-ins like Furnace and Ocula, has been working on a tool that leverages the company’s understanding of motion to analyze an image and then shift the appropriate portions to correct those artifacts in the course of tracking.
The Foundry isn’t estimating a date when such a tool might be available, but the company is aware that the technology will likely have an expiration date. As in-camera hardware and software improves, manufacturers are getting better at minimizing rolling-shutter artifacts, especially in their high-end gear. As technology marches on, there may be only a two- or three-year window in which filmmakers find it necessary to correct CMOS artifacts before the camera vendors build the fix into their own systems.
For more information: www.thefoundry.co.uk
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