07-11-2012, 03:34 PM
OPTICAL CAMOUFLAGE
OPTICAL CAMOUFLAGE.ppt (Size: 2.5 MB / Downloads: 28)
RETROREFLECTIVE SURFACE
Corner Cube Arrays, Fly-eye lenses with diffusers & micro-beads.
Micro-beads :
R.I - 2
Diameter - 50mm
PRINCIPLE OF RPT
Object covered with Retro-reflective material is used as screen
Projector is placed on the position optically conjugated with the observer’s eye by using a half-mirror
Projector’s iris (pinhole) is very small
ADVANTAGES
Accurate Occlusion Relations
Arbitrary Screen Shapes
No Distortion of Image
High Resolution
Stereoscopic Images
Binocular Stereovision
APPLICATIONS OF RPT
Pre-captured x-ray and/or MRI data can be superimposed onto a human patient so that a surgeon can have open surgery.
Superimposing ultra-sonic data, real-time presentation of inner body information is also possible.
HEAD MOUNTED PROJECTOR
Uses X’tal Vision (RPT)
Conjugate Optical System
Provides High Resolution
When Image appears on the retro-reflective material
Viewer can observe the images projected on the retro-reflective material occluded by the object which exists in front of the screen.
Front Projection
Augmented Reality (AR)