Stereoscopic vision

The case of the camera is the skull. The forehead and brow partially protect the eye that is enclosed in the bony orbit. To facilitate stereoscopic vision, the adult eyes are positioned such that the focus is able to converge to achieve a binocular view between 20 cm and infinity. The eyelids provide partial protection to sudden changes of light and also serve to compress and spread the tear film maintaining a clear optical surface. Fibrous tarsal plates provide the framework for the movable folds of modified skin (Figure 23.1a and Figure 23.1b). 

Munz, Y. et al. "The benefits of stereoscopic vision in robotic-assisted performance on bench models." Surgical Endoscopy and Other Interventional Techniques 18.4 (2004) pp. 611-616. 

Birkfellner W, et aL Computer-enhanced stereoscopic vision in a head-mounted operating binocular. Phys Med Biol 2003 48(3) N49—57. 

In the preceding it has been announced that the object of the stereoscope is to exhibit tnings precisely as one sees them in natural vision that is, with eyes, two and a half inches apart But if it be thought desirable for any purpose to represent things as one should see them, were the eyes wider apart than two and a half inches, then the distance between the stations may be exceeded. 

Visual displays are devices that present the virtual environments to the user. The degree of immersion given by a particular VE system depends greatly on the visual interface display. Severed kinds of visual displays are currently available monitors, head-mounted displays (HMDs), head-coupled displays (HCDs), and projection systems. AH of these systems are capable of producing wide-angle stereoscopic views of the scene, although in some cases monoscopic vision is tilso used. 

Verdii, R., R. Berenguer, J. Morales, G. Vazquez, T.F. Otero, and L. Weruaga. 2005. 3D Mechanical characterization of artificial muscles with stereoscopic computer vision and active contours. Proceedings firom International Conference on Image Processing, Barcelona (Spain). 

Fig. 14.37. The spin stiucture of TbCu2 at 4.2 K from neutron diffraction results of Brun et al. (1971). This is a stereoscopic representation in which the left and right images are to be viewed by the right and left eyes respectively. This can be achieved either by direct observation with the lines of vision crossed, or by means of a pair of viewers in which case diapositives of the two separate images are required. Only the Tb atoms are drawn. The plane of the figure is the a-c plane, with spins in the a-direction. The spin stiucture can be regarded as ferrimagnetic within an a-c plane, of the spins up, and down. The spin directions are reversed from plane to plane, giving a net antiferromagnetism.

---