AprilTag integration

AprilTag is now fully integrated in ViSP.

AprilTag is a visual fiducial system, useful for a wide variety of tasks including augmented reality, robotics, and camera calibration. Targets can be created from an ordinary printer, and the AprilTag detection software computes the precise 3D position, orientation, and identity of the tags relative to the camera.

The AprilTag library implemented in C with no external dependencies is now integrated in ViSP source code as a 3rd party. We provide vpDetectorAprilTag class that is a wrapper over AprilTag. A new tutorial is also available.

Example of resulting AprilTag detection with ViSP

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