Keep an Eye on TrueVision 3D Surgical System
SFGate reports that professor Clement Tham (Hong-Kong), one of the most highly respected and innovative ophthalmological surgeons performed the first 3D “heads-up” cataract surgery in Asia using the TrueVision stereoscopic 3D Surgical System.
The first surgery, performed at the Hong Kong Eye Hospital, took place on December 12, 2012, and used the advanced TrueVision 3D Visualization and Guidance platform for high-definition, real-time, stereoscopic microsurgery.
A new Trick for Pulfrich Stereoscopic 3D Video
What is the Pulfrich Effect?
The Pulfrich effect is a psycho-optical phenomenon that was documented by Carl Pulfrich in the early 20th century. It is due to the difference in the speed of perception according to an object’s luminosity. The Pulfrich effect is thus perceptible only in the case of moving objects. For example, look at the movement of a pendulum swinging from left to right. If you cover one eye with a piece of dark glass you will see the lateral swing seconded by a movement in depth, as if the pendulum were oscillating in a circle rather than a plane. The darker the filter, the more pronounced the effect becomes.
If the filter is over the left eye, the moving object seems to be in front of the plane of the screen if it moves to the left and behind the plane if it moves to the right. The explanation is simple: The presence of a dark filter over one eye produces a lag in the perception of the scene coming from this eye. The left eye thus sees the pendulum a split-second later, and that causes a horizontal disparity with respect to the right eye. The brain interprets this difference as an interocular parallax and deduces a depth proportionate to the speed and direction of the moving object. Motionless objects are not affected.
The new trick
As pulfrich glasses are not so common, Katsuhiko Inoue, a retired physicist from Osaka University, added red/cyan color correction to the popular Pulfrich video "Demonstration of the Pulfrich Effect: NC State Fair". Watch the result with your good old red/cyan glasses here under.
Blind Eye, a 2D Ad Projected with 3D Glasses
Blind Eye is a new ad created by marketing agency WCRS (London, UK) for Women's Aid utilising 3D stereoscopic projection in a whole new way by allowing the viewer to select, by swapping eyes, which scenario to view. The film was released in selected cinemas nationwide in December 2012.
Blind Eye offers viewers two versions of the same story – by closing one eye you see a woman preparing dinner in her kitchen, but by swapping eyes, you see a parallel story emerge. Instead, her husband comes home and torments her.
Left Eye View
Right Eye View
Oops! I Swallowed a 3D Camera
A new technique developed by Massachusetts General Hospital (MGH) to diagnose oesophagial cancer uses a minuscule 3D camera you can swallow with a glass of water.
Just about the size of a US penny, this tiny tethered camera can be lowered and raised in the patient’s esophagus to allow a complete stereoscopic 3D picture (and a full 3D CGI model) to be captured. Using optical frequency domain imaging (OFDI), the small camera is supplemented with an infrared beam to view the tissue. Spinning at twenty hertz, this hair-sized beam of light gives the doctor a 360° macroscopic view of the esophagus.
Best of all, this method doesn’t cause the patient pain, and can be accomplished in a few minutes without the need for intense training on the procedure. Watch the video here under.
"Morning Sky": Depth without 3D ?
This is Radar is an European studio based in the (very) small country of Luxembourg providing creative and original film and video services from concept to post production.
"Creative and original" applies to their last Alvin and Lyle's Morning Sky music video shot with a 3D rig fitted with a couple of Nokia smartphones. So, it was shot stereo but the result is a monoscopic film alternating both left and right point of views separated by the usual 65-mm interocular distance, an effect also called "Wiggle video". If you want a video with some sense of depth without wearing any 3D glasses, watch the disturbing result here under.