KitPlus | Articles

Monitoring Image and Signal Degradation

by Peter LampelIssue 79 - July 2013 OmniTeks latest waveform analysis software focused on assessing the degradation in video and audio quality and timing suffered by images as they are transmitted or stored. What approach has OmniTek taken to measuring these effects? In an ideal world, all broadcasters would love to have a piece of equipment that s...

Submitted by Mike Hodson

Published 01 August 2013

Why test and measurement is for real life, not just for e...

by Will StraussIssue 79 - July 2013 Thanks to its long-standing association with virtually incomprehensible acronyms, dark machine rooms and (lets face it) engineers with unruly beards, the subject of Test and Measurement (T&M) always gets a bit of bum rap. Yet, for all the pre-conceptions, it is a hugely important part of the production and broadc...

Submitted by Will Strauss#

Published 01 August 2013

Ask the experts: What lens?

Ask the Expert with Paul Sargeant, Procam TVWhen choosing the right lens for your project, there are a huge range of options to choose from that depend entirely on your individual project and your needs. You need to think about the quality of filming you require, where the content will be placed, what camera you will be using to shoot it and how yo...

Submitted by Peter Daffarn

Published 01 March 2013

What you see is what you get? Doubtful!

by Robin PalmerThe colour you see is not necessarily the same colour experienced by someone else looking at the same thing. It all depends on the viewer and the viewing conditions as well as the actual colour of the thing. In some professions having perfect colour vision is a matter of safety as in the case of airline pilots and those in railway si...

Submitted by Robin Palmer

Published 01 March 2013

Video Monitoring Essentials - By Den Lennie

As a DP the video monitor you work with is one of the most important tools on set. I began my career in 1994 shooting television news for Reuters on Betacam SP and it was very rare that I'd get to use a monitor on location. As my career evolved I started shooting more considered pieces and used Sony 9\" tube monitors all flight cased up. I shot the...

Submitted by Kieron Seth#

Published 01 December 2012

Technical Testing Joins Forces with Visual Monitoring

In the past, test and measurement equipment was designed exclusively for broadcast engineers. Vectorscope and waveform read-outs sketching out shapes on a scope were readily understood by technicians fluent in the language of signal analysis. Today multi-camera digital acquisition is not merely the domain of the broadcaster; television production i...

Submitted by Kieron Seth#

Published 01 December 2012

The highs and lows of histograms

Histogram displays for video analysis probably followed those found in common computer graphics programs such as Adobe Photoshop. This can be very useful in finding video signal problems that would be difficult or impossible to see with a conventional waveform display. The histogram is a way of showing statistical results as a bar-chart. The range...

Submitted by Kieron Seth#

Published 01 December 2012

Wibbly Wobbly Waveforms

The very first analytical electronic instrument, developed in the late 1890s, was the oscilloscope. This used a cathode ray tube (CRT) to paint a graph of voltage on the Y axis versus time on the X axis. Once television became a practical reality in the 1930s, the same instrument was applied to the video output from the camera and became the very u...

Submitted by Bob Pank#

Published 01 November 2012

Pointing out the right colours

In the old days of PAL and NTSC analogue television, a vectorscope was an essential tool for examining chroma at every part for the programme production and transmission chain. This was because the colour information was carried as a phase and amplitude modulation which could be sensitive to a variety of transmission or recording non-linearities an...

Submitted by Bob Pank#

Published 01 October 2012

Testing times of a 4K world

The term '4K' applies to some five slightly different picture formats with around 4,000 pixel horizontal resolution: all much bigger than HD. In fact roughly four times the total pixels required for 1920 x 1080 pixel high definition. 4K has been around for some years but was until recently only affordable by producers with mega budgets. Advances in...

Submitted by Will Strauss#

Published 01 August 2012

Handheld T and M the broadcast emergency service

“Test and Measurement”. Shudder. Like “Health and Safety”, “Bus” and “Replacement Service” or “Keith and Orville” it’s a collocation of words that fills me with dread. Seriously, who wants to read about “Test and Measurement”? Well, as it turns out, the answer is: quite a lot of people. Because, despite its lack of glamour, it is hugely important....

Submitted by Will Strauss#

Published 01 August 2012

Is it time to hang up your glasses for field 3D monitorin...

The rapid growth of 3D content being shot and produced has created many challenges to the camera operators, production teams and indeed manufacturing companies. There has always been the problem of viewing 3D material as it is being shot and the ability to review it immediately afterwards, whether as a camera viewfinder or a portable 3D monitor. At...

Submitted by Bob Pank#

Published 01 January 2012

JVC 3D Spotlight

JVC Professional’s expanded family of 3D products now include the new GY-HMZ1 3D ProHD handheld camera, along with the GD-323D20 32 inch 3D display/production monitor, our popular DT-3D24G1 3D production monitor and the upgraded IF-2D3D1 2D to 3D converter. The products are already widely used throughout the post industry, helping content creators...

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

Multi Function 2D and 3D Signal Monitoring Capability

We find ourselves in a constantly evolving industry with an ever increasing variety of video sources and devices that require monitoring. There is still a significant amount of analogue equipment requiring both composite and component monitoring, and then there is the whole raft of digital video equipment supporting SDI, HDSDI, 3G and now HDMI conn...

Submitted by Bob Pank#

Published 01 December 2011