3D TV to go mainstream soon

Researchers from ITU say that down the years, there would be such 3D systems that would accurately mimic the way our eyes and brains perceive the visual world. They call it the 'stereposcopic 3D' technology, and are certain that soon viewers would be watching their favourite programs and even feature films in 3D.

The study group has outlined the future of television, citing three kinds of 3D TVs which they call as three generations of 3D television.

The first generation — 'plano-stereoscopic television' — calls for two views to be delivered to viewers’ TV sets. Wearing special glasses similar to those used to watch 3D cinema, viewers will be able to see depth in the picture, although the view will remain the same when they move their heads (in real life, our view changes when we move our heads).

The second generation will provide for multiple views, with head movement changing the view, for a viewing experience that more closely mimics real life.

The third generation will feature systems that record the amplitude, frequency, and phase of light waves, to reproduce almost completely human beings’ natural viewing environment. These kinds of highly advanced systems are technically some 15-20 years away.

"This new ITU report establishes a clear framework for the development of new types of systems that will totally change the way we experience broadcast and multimedia content," said Valery Timofeev, Director of ITU’s Radiocommunication Bureau. "It maps out an exciting vision that won’t just change the look of entertainment, but open up a whole range of exciting new possibilities in sectors from education and healthcare to traffic management."

Why CAT crashed online

The trouble with the computer-aided CAT exam was diagnosed as ‘Conflicer’ and ‘W32 Nimda’, the two viruses that attacked the system display of the test, causing it to slow it down.

Efforts are now on to quarantine the systems from these viruses to ensure smooth conduct in the remaining days. Tests at 47 labs were called off on the first two days and 33 labs on Monday, on account of this problem affecting nearly 8,000 aspirants who will be rescheduled.

Samir Barua, director of IIM-A, which is the nodal agency for conducting CAT in the country, told reporters, "Though there were precautions taken, with so much of technology involved, it is hard to keep the system foolproof. The 47 centres which reported problems on Day one, were kept shut on Day 2 so that they could be checked. On Day 3, 33 were shut, which include some new centres also," said Barua.

"All efforts are right now diverted to further isolate and quarantine the individual servers, increase virus protection and control accessibility so that the test can be conducted smoothly on the remaining days. These security measures are being taken not only in the centres that have experienced problems but all the others that were operating smoothly," added Barua.

Charles Karnan, COO, Prometric, the US agency given the contract for CAT 2009 along with NIIT, said, "All the students who have suffered any difficulty in the taking the test will be accommodated, as all the centres were asked to keep a buffer in case of any such problem, right in the beginning. Of the 8,000 odd candidates that have faced problem, 62% have been rescheduled." "This is the biggest test we have conducted. Usually these many students take tests like GRE, GMAT or Toefl across the year, but here we had to complete the process in 10 days," he said.

Students facing problems at individual levels, have been asked to report to the Candidates Care Service at each centre. “Once their credentials are confirmed, they will be given a new test date and slot when they can appear for the test," Satish Deodhar, convenor of CAT Centre said.

Asked how the three centres at Ahmedabad were glitch-free, Prof Deodhar, said, "The centres here were able to keep their servers quarantined better."

Virus claim may trigger litigation
With the online CAT to the IIMs turning chaotic — admission tests were cancelled at nearly 14% centres across the country owing to technical glitches — cyber experts say pinning of the blame on a virus attack may have worsened things for applicants.

Cyber guru Vijay Mukhi said the official explanation of a virus would open the doors for students to question the exams and approach courts to have it cancelled. ‘‘It could set a dangerous precedent if anyone goes to the court and court grants a stay,’’ he told, even as he questioned the virus claim. Cyber law advocates said a technical glitch is one thing, but admitting to a virus attack shows the online system may be tough to handle for authorities. Rajiv Kumar, a well-know lawyer, said the cancelled exams would give rise not only to question of inequality, but also denial of equal opportunity.