Itseez/opencv — pull request #2485 by Nerei (2014-03-16 16:15:42+00:00)
Title: Viz::setViewerPose() - changed up-vector to down (common for Computer Vi...

Fixed viewer pose according to conventions in computer vision. This is also related to issue http://code.opencv.org/issues/3524#note-1 (agree with rotation disagree with inversion)