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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

3D in 2011

Another year and it’s time for a fresh look at the S3D market. Each year the CES Show that occupies the Las Vegas Convention Center with, in 2011, an unexpectedly high number of attendees (140,000) keen to see what’s new. At CES 2010 S3D was THE thing, but a year later the excitement had moved on to the nebulous market of mobile devices OTT and, pr...

Submitted by Bob Pank#

Published 01 March 2011

Eyeballing 3D errors

Standard-issue human eyeballs are very adaptive and clever. Of course it’s the massively powerful image processing in the visual cortex of the brain that really allows us to resolve 3D images. Stereographers have been very practised over the years in achieving good camera set-up with only simple tools. The most common test uses a picture monitor sh...

Submitted by Bob Pank#

Published 01 March 2011

Dont lose the 3D plot

As was mentioned in the sixth article of this series, depth budget is the single most important parameter in stereoscopic 3D TV. As well as observing the practical and desirable limits to which the depth parameters can be pushed, making a good 3D production required careful management of depth dynamics. This is mostly done in post production to ens...

Submitted by Bob Pank#

Published 01 February 2011

Anaglyph, old hat but still useful

There are now many technologies for viewing 3D on television or the cinema. The oldest, dating from the 1850’s, is the anaglyph glasses. I’m sure everyone is familiar with the ‘red’ and ‘green’ style of old, though those particular single colours are hardly used these days. The basis of an anaglyph is to separate left and right image components for...

Submitted by Bob Pank#

Published 01 January 2011

Not so Good Vibrations

When shooting with ordinary 2D, you can almost do what you like with camera dynamics. If you pan wildly from side to side or up and down, what you see through the viewfinder is what you will actually get. If there is going to be some camera shake or vibration, you can opt to switch in a stabiliser in the camera or the lens system. In 3D these are d...

Submitted by Bob Pank#

Published 01 November 2010

Deja Vu

3D was everywhere at IBC with a choice of new products on offer for all parts of production. This makes 3D far more accessible as well as easier to produce. It was also clear that interested visitors to the show were no longer swayed by the initial ‘wow’ factor and were trying to see the more important things – notably the economic realities. In th...

Submitted by Bob Pank#

Published 01 November 2010

tv-bay IBC2010 double takes

Tv-bay Double Takes..!Acquisition For-A VFC-7000 Camera HD Variable Frame Rate CameraASA1800 Sensitivity, Native 720x1280 resolution with inbuilt up-convert to 1920x1080 and will output at 50 or 59.94 frame rates. 120 - 700 Frames per second recording speed. Two HD-SDI outputs enabling live and recordings to be viewed simultaneously. Standard onboa...

Submitted by Bob Pank#

Published 01 November 2010