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3D Diaries Cameras: more for less

http://www.tv-bay.com/imag/issue062/files/44.htmlCameras: more for less?There is plenty of guidance available about how to shoot ‘good’ stereo 3D and the principles are quite easy to understand. Achieving good results takes good equipment and, maybe, the assistance of a stereographer and even a convergence puller... unless you are using one of thos...

Submitted by Bob Pank#

Published 01 March 2012

Unconvincing conversion?

There have appeared in the last year or two an amazing array of 2D to 3D conversion boxes and software processors. Also nearly every major manufacturer of high end 3D sets has its own proprietary built-in processor allowing the user to view any ordinary TV broadcast or DVD instantly as a 3D rendition. The production of genuine 3D is expensive compa...

Submitted by Bob Pank#

Published 01 March 2012

Active or Passive? Its a walk-over!

With the forthcoming Olympics being broadcast in 3D free-to-air, there is sure to be a surge in new TV purchases. Given so many 3D capable models to choose from, which is best?Until the manufacturers come out with autostereoscopic designs that work properly in high definition, we have to view 3D though some sort of glasses to separate the left and...

Submitted by Bob Pank#

Published 01 February 2012

Headache-free 3D

With over 30 broadcast channels now offering 3D programmes, and cinemas in practically every major town and city equipped to show 3D films, demand for stereoscopic content is increasing rapidly. Display manufacturers are now responding to this growing market with various new technologies intended to improve the viewing experience. A useful show for...

Submitted by Bob Pank#

Published 01 January 2012

3D Five years on

For me, IBC2006 was the beginning of the modern 3D era. At an invitation-only presentation, 3ality’s CEO Steve Schklair described what his company was achieving with S3D. Suddenly it all made sense. With the accuracy of digital shoots and computer technology replacing difficulties and expense of working with film, 3D could now be viable. Unlike the...

Submitted by Bob Pank#

Published 01 December 2011

Getting close to the edge?

'Edge Violation – A visual artifact that can arise when part of an object near the edge of the display is represented in the left-eye image but is not represented in the right-eye image or vice versa.' So says the 3D glossary given by 3D@Home. Figure 1 shows an example of edge violation. A street lamp post is located on the extreme right in the for...

Submitted by Bob Pank#

Published 01 November 2011

Doing 3D by the book

'3D TV and 3D Cinema: Tools and Processes for Creative Stereoscopy' (ISBN: 978-0-240-81461-2) is Bernard Mendiburu’s latest book, published this summer by Focal Press. It follows on from his previous success ('3D Movie Making') which has had several reprints to keep up with demand. Since the first book came out two years ago, the art of 3D media, t...

Submitted by Bob Pank#

Published 01 October 2011

Keeping both eyes on the ball

It goes without saying that spectator sports are made for television; of course they are, as can easily be proved by trying to follow a football match on radio. A skilled radio commentator can describe key aspects of the action fairly well but television actually gives viewers the impression that they are sitting in the stadium. Widescreen high def...

Submitted by Bob Pank#

Published 01 September 2011

On the level

In shooting 3D you naturally have two cameras and two lenses: albeit, there are some weird and wonderful single lens/single sensor contraptions out there. This usually means there are any number of ways each camera lens combination could be producing images with minor are major signal level differences. If these level differences are not dealt with...

Submitted by Bob Pank#

Published 01 July 2011

Whats new in broadcast test and measurement

The test and measurement product category continues to expand as the broadcast business itself diversifies. Notable recent developments include higher resolution displays and a gradually increasing number of analysers which, having detected a fault, endeavour to fix it. No sign at NAB 2011 of any tablet-based test and measurement equipment but perh...

Submitted by Bob Pank#

Published 01 July 2011

3D One year on

The month started with a trip to Sony to visit its very impressive 3D Customer Experience Centre where Paul Cameron (Training) gave a three-hour run down all about 3DTV production. This very compact version of Sony’s three-day course kept me on my toes. Early on he pointed out that 3D had been in favour, and then out, several times already, at abou...

Submitted by Bob Pank#

Published 01 June 2011

A little bit over the top

Vertical disparities in 3D stereoscopic images have several causes: principally they would be due to one camera being mounted such that its optical axis is higher than the other. Effectively, one eye could be seeing more over the top of objects than the other. The vertical registration is impaired and will cause headaches for any viewers as their e...

Submitted by Bob Pank#

Published 01 June 2011

Getting the 3D words right

Captions and sub-titling in 3D is not so easy as in 2D. The words cannot simply be superimposed over 3D content. They need to be accurately positioned in the depth plane otherwise they can create visual confusion and break the whole 3D illusion. For instance, consider a street lamp-post on the right in the foreground and in front of the screen plan...

Submitted by Bob Pank#

Published 01 May 2011

One Eyed 3D

The illusion of a single 3D image is created within the brain based on the spacial displacement of our two eyes. So how can you make a 3D production with one camera?The 3D stop frame animation feature film 'Coralline' was largely made with just one camera for each scene. The same DSLR camera was used to take left and right images successively. For...

Submitted by Bob Pank#

Published 01 April 2011

BVE 2011 retrospect

BVE 2011 had much of the buoyancy and buzz of an IBC. The organisers claimed an attendance of over 15,500 visitors and 240 exhibiting companies. Many of the UK-based stalwarts who make the annual pilgrimage to Amsterdam could be seen exploring the show, confirming that BVE is now taken seriously by mainstream broadcasters. It is perhaps over-optimi...

Submitted by Bob Pank#

Published 01 April 2011