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O Step 13: Automated camera match

It s not hard to do a pretty QOOd camera line up by hand but you« never he able to achieve the accuracy of automated camera calculation Mow tha we have a fined model we can use any ot the qcxxJ photo-reconstruction or camera-match (match move) packages to do an automatic camera extraction lor us Of the match move software. I can strong recommend Russei Anderson s Synth Eyes and ot the Ptotomodefcng software l have found Eos

Systems PhotoMode er to be n*C< • nth* ♦ «MCtmg camera data WfVi'evw system you use you want to take the icoort nates from »wee pom» _ your mesh to use for dehr ig the coonfrnate system tot the camera much This way ail the camera positions a* tafe*at*d * your cooninat* system

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Wooets and textures from photographs

Q Step 14: Using accurate camera data only have to use the camera locations from your camera match -°ttware After you tweak your manually-aligned cameras with the exact -amera position, you can easily rotate and move the camera target C anually rather than trying to interpret the camera match rotation angles with only 10 cameras, I manually transferred the accurate camera sitions from PhotoModeller to 3ds Max and then manually tuned the rotations and camera targets Depending on how you did the ™mera sol*^ you may find that the solver mterprets the focal length slightly differently to your original setup In this case I had to change all the camerasnn ids Max to 113mm focal length from the actual camera setting of i05nm a in all the use of a full camera solve is a very straightforward procedure it you have done a good initial model fit.

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