Free-Vision Fusion (Cross-eyed method) X92I==-w
This technique has the advantage of not requiring special viewing equipment. Fusion is the term used for the process for visually merging the left-eye image and the right-eye image into a single 3-dimensional image. When using a viewer, most of the work of achieving the needed abnormal convergence for stereo viewing is done by the optics and design of the stereo viewer. >* ]B4Q
kjOI7` DU
Free-vision fusion requires patience and practice because your willpower and eyes must do the work of the stereo viewer. You must be able to focus where your eyes aren't looking.
L:Me
M0woJt[&
Place the image in Figure 1 in the center of your screen. E4xybVo@
Sit at your normal distance. BJnysQ
Slowly cross your eyes. You will see a double image, or four dots. __)"-\w-_(
Continue to cross until the middle two images overlap. -
*xn`DH
Adjust focus on middle image, keeping the two images overlapped. r z5@ E
You should see the blue circle floating above the black circle.
