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Eye to Eye: Video Post-production

This column’s previous excursion into video post-production was just before the 2011 NAB Spring Convention, always a dangerous time to talk about new hardware or software when a deluge of upgrades, lookalikes and lite-editions are about to hit the aisles of the Las Vegas Convention Center. Quite a lot has happened in this category over the past 12...

Submitted by Bob Pank#

Published 01 February 2012

So what is Digital Television. Part 3

Last month Richard described moving forward from analogue to Digital video. This month he covers Gamma and conversion difference…Gamma correctionAn analogue factor to be considered in the handling of the video signal is the perception that the video display is accurately reproducing the brightness of each element of the scene. The Cathode Ray Tube...

Submitted by Bob Pank#

Published 01 September 2011

So what is Digital Television. Part 2 - Back to Basics

Component digital videoThe designers of early analogue special effects equipment recognized the advantage of keeping the red, green, and blue video channels separate as much as possible during any processing. The PAL and NTSC encoding/decoding process is not transparent and multiple generations of encoding and decoding progressively degrade the sig...

Submitted by Kieron Seth#

Published 01 August 2011

Reviewed DSC Labs Chroma Du Monde

Visual Impact were provided with a DSC Labs CamAlign CDM 28R Chroma Du Monde to test at their Teddington base this week, and unsurprisingly were impressed with what they found. Upon first impressions, the test chart seemed to employ a far too reflective surface which would inherently cause unwanted reflections and thus yield incorrect results. A br...

Submitted by Bob Pank#

Published 01 July 2011

True Colours Shine Through With CCS

When you are a broadcast engineer working in front of a stack of LCD monitors, seeing a significant difference between the brightness and colour of each monitor can be both annoying and tiring on the eyes. Worse still, if you in a Master Control Room and the pictures have taken on a sickly green hue, how do you know that it is just the monitors at...

Submitted by Bob Pank#

Published 01 March 2011

Lighting up Yorkshire

The Yorkshire town of Rawmarsh looks like an easy target. Its trolley buses have come and gone and its two train stations were both wrapped up more than 40 years ago. For many years, it was the home of potters and steel workers; it was a mining town from the 15th century, an industry that survived over 500 years until it was closed by a certain rut...

Submitted by Kieron Seth#

Published 01 January 2011

Putting Your Sports Announcers in the Best Light

Sports event remote crews have long fought the challenge of matching light on announce booth talent to the ambient light on the field below. Light on the playing surface during a single event can range from bright sunlight, ducking in and out of clouds, to minimal level artificial light. During daylight hours, without additional light on the talent...

Submitted by Kieron Seth#

Published 01 January 2011

Expanding Arqiva into HD playout

ATG Broadcast recently completed a major SD to HD upgrade for Arqiva broadcast transmission centre at Gerrards Cross, Buckinghamshire. The expanded system enables Arqiva to process and transmit four fully-operational 1080i HD channels as well as six new SD channels. It includes the installation and equipping of a server-based ingest suite, playout...

Submitted by Bob Pank#

Published 01 December 2010

Nucoda Film Master builds tension on Mistresses

Fans of popular UK television drama Mistresses saw the third series air on BBC One and BBC HD in August. Shot in Bristol on RED, the four x 60 minute drama was edited and graded at Bristol-based post production facility Films@59, who also supplied the camera kit. Produced by Ecosse Films, Mistresses delves into the tangled lives of four female frie...

Submitted by Bob Pank#

Published 01 September 2010

A year on the net AIL

2009 was a good year for AILTV as this was this the year we started broadcasting. The period was used to test and try out new ways to improve our services made all the more challenging with the recession was in full swing. Some plans to take AILTV to a next level had to be put on hold such as the purchase of a Niagra Go Stream for live streaming wh...

Submitted by Bob Pank#

Published 01 May 2010

How to choose a broadcast display

How to choose a broadcast display…10 years ago, buying a CRT monitor was simply a case of buying the latest version of your facilities favourite brand in either Grade I or II. The advent of the LCD, HD and the demise of the CRT means we have now to try and decipher all the marketing jargon to work out which display best fits our needs. To help de-m...

Submitted by Dennis Lennie

Published 01 September 2009

HD Camera Measurements. Getting the most out of your came...

Recap previous Parts:While the first parts covered the theory and actual measurements of white shading, setting up colorimetry, exposure, greyscale adjustments, alignment and matching of cameras using a waveform monitor, this final part is devoted to providing a better understanding of the displays used. Interpreting a waveform monitor displayA Wav...

Submitted by Dennis Lennie

Published 01 July 2009

Eye to Eye File-based content distribution 2009

The rapidly divergent pattern of broadcast market development resembles the branches of a fast-growing tree. But there is one crucial aspect in which the industry is quite obviously converging: the transition from video and audio to file-based content distribution and delivery. This would have happened anyway given the increasing popularity of the...

Submitted by Dennis Lennie

Published 01 June 2009

HD Camera Measurements. Getting the most out of your came...

Recap previous Parts:The first parts covered the theory and actual measurements of white shading, setting up colorimetry and exposure as well as greyscale adjustments using a waveform monitor. The objective was to provide a thorough understanding of the functions and benefits of using a waveform monitor when addressing non-linear effects in the cam...

Submitted by Dennis Lennie

Published 01 June 2009

HD Camera Measurements and getting the most out of your c...

Recap Parts1 and 2:Parts 1 and 2 covered the theory and actual measurement of white shading, making sure that the camera non-linearities introduced by various different lens systems on a particular camera are compensated. In this issue, Part 3 will investigate setting up colourimetry and exposure as well greyscale adjustments using a waveform monit...

Submitted by Dennis Lennie

Published 01 May 2009