Free-Vision Fusion (Cross-eyed method) n-D r/c4
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. &VR<'^>
y3 LWh}~E
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. /#
0@C[9
qI<*Cze
Place the image in Figure 1 in the center of your screen. To}L%)
Sit at your normal distance. 'V4.umj1~
Slowly cross your eyes. You will see a double image, or four dots. g[8V fIe
Continue to cross until the middle two images overlap. \Y>^L{
Adjust focus on middle image, keeping the two images overlapped. 2YuaPq/
You should see the blue circle floating above the black circle.
