Reading Notes of stereoscopic vision

Stereoscopic Vision

Bela julesz

At & A Bell Laboratories, 1986

Original Text excerpt

-The most immediately evident importance of computer-generated RDS was to show that in spite of the complete absence of any monocular form or depth cues they cocould easily be fused. this implies that stereopsis is a much simpler process than assumed earlier.

In generalSingle-eye clueOr if the deep clue is missing,RDSThe left and right eye images can still be easily integrated. This implies that three-dimensional observation is actually easier than we thought before. In addition, julesz believes that the Sherrington (1906) viewpoint ("monocular vision is a mystery and therefore binocular vision is twice as mysterous" dual-eye vision is more mysterious than single-eye vision) should change.

-Stereoscopic depth perception, a major function of binocular vision, does not require monocular form recognition, but can be accomplished by a relativey simple crosscorrelation-like process.

As an important feature of binocular vision, stereoscopic depth awareness does not need to identify single-eye clues first, but can be easily associated with each other (the view of the left and right eyes).

Data records:

Panum's fuyun area:

Pano (Panum,1858) Research found that even if the binocular visual image does not fall on the corresponding points of the two eye omns, it can also be a single imaging, as long as the binocular parallax is small enough, the binocular images will be fused together, the parallax range allowed by video image fusion is called the Pano Fusion Zone (Panum's fuyun Area). You can try to hold a pen in one hand in the distance of one arm, while the other hand holds a pen in the distance between the first pen and the face. When you stare at the pen in the distance, there will be a double image in the pen near it. This is the secondary view. When the pen is slowly approaching the pen in the distance, when you stare at the pen in the distance, the close pen does not show the review point, that is, the boundary of the Pano fusion zone. If the eyes in the Pano Fusion Area are similar, we can see a single image. If the images in the Pano Fusion Area are not similar, they cannot be integrated, in this case, only two eyes will compete (Binocular rivalry(Fox,1991;HowardAndRogers,1995).

Dual-eye Competition

The dual-eye competition presents different images to the observer's eyes, and the observer sees two input images alternate.