Harding PSE Fixer plugin

NEW
FOR
PSE-Fixer Plugin
for Quantel GenQ, Pablo, Rio & Pablo-PA
This new plugin, written natively for the Quantel platform, is
designed to easily and reliably fix shots which do not comply
with the DPP standard
and Ofcom PSE (photosensitive epilepsy) requirements.
Manually fixing PSE flashing errors is time-consuming and
often requires hundreds of keyframes of color adjustment.
The PSE Fixer plugin automates this process using
complex image analysis and high speed processing using
the nVidia GPU.
This plugin requires an nVidia graphics card.
“Harding Test” is a registered trademark of Cambridge Research Systems
A convenient“repair” tool, to aid external ‘flash’ detection
The pixelfantastic PSE Fixer plugin does not identify PSE errors. It is designed as a companion to
PSE hardware and software analysis tools as specified by Ofcom (see chart below).
An external device* IDENTIFIES problem areas but does not FIX them. This plugin deals with
simplifying and speeding up the fixing process.
It’s purpose is to quickly and easily modify a clip to pass PSE checking, by dynamically compressing
the overall contrast range of every frame of the offending clip.
It is effective at preserving the energy and excitement of flashing images, while quickly and easily
helping shots conform to the PSE requirements.
Typical PSE Report Log
PSE-Check image courtesy of Cel-Soft
*Approved PSE checking devices
Cambridge Research Systems Harding FPA
Tektronix Cerify
Digimetrics Aurora
Intera Baton
VidCheck VidChecker
Cel-‐SoC PSE-‐Check Reel-‐Check Solo
QuickStart Guide
The Quantel artist must decide which frame in the clip will be the “normally exposed”
frame. This will usually be the frame which does not have a bright flash on it. Apply a
separate plugin for for each scene for the duration of the offending segment.
The on-screen overlay makes it easy to adjust for optimal level.
Simply adjust “set Luminance target” (
1 ) until the lower bar-graph is as small as
possible, and is aligned with the white centre mark (
2 ).
That’s it!
The plugin will now make instant adjustments to all the frames to keep the radiant
light energy within acceptable limits to comply with the PSE Test regulations.
Turn off the bar-graph overlay before rendering.
Always re-test the fixed clip, in case of anomalies.
1
2
Expert mode
Not required in most cases, but this plugin also contains an ‘expert’ mode, which contains
three additional functions which will assist in fixing more challenging shots.
Whenever a PSE report flags up “Red Flashes” errors, simply enable the “red flashes”
button. The simple button utilises a complex chromakey, pre-set to de-saturate and
darken just the offending color range. There is also an option to alter the hue of the red,
to move all the red content away from the PSE trigger color.
If you are faced with a ‘borderline’ PSE fail, it may be an option (stylistically) to enable the
“Vignette” function, which gently dims the perimeter of the image, often clawing back
enough bright pixels to achieve a pass. The centre of the vignette may be positioned and
animated to follow the action, using the pen with the on-screen control.
In tight deadline situations, where finesse is not an option, we have added the
emergency button “make Blue” which removes most of the colors, creating a blue image
which will almost always pass a harding test. Only to be used when all else fails.
example hardware setup
Any 64-bit Quantel System
HD SDI with Timecode
Any PSE checking hardware
Quantel systems output embedded timecode through SDI , therefore one
BNC cable is all that is required to feed the external Hardware. In this
example it is connected to PSE-Check from Cel-Soft. This is a realtime
PSE flash analyser and certificate creator. Ofcom publishes an approved
list of similar devices available from alternative manufacturers.
As soon as the PSE-Check hardware flags a rogue clip, it instantly displays
on screen a frame-grab and the timecode of the offending clip’s start and
end point.
Apply the pixelfantastic PSE-Fixer plugin, adjust the target level , and
immediately re-test the clip.
If the error includes “red-flash error” press the red flash button too. This
invokes the built-in high quality chroma-keyer, which suppresses strong red
pixels proportionally according to their need.
If you have a borderline fail, you may either lower the target setting or
simply dim the edges by pressing the “vignette” button, to bring the overall
dynamic range slightly lower without impacting the central region of the
image.
Cel-Soft contact details
Robin Palmer
+44 1799 599800
cel-soft.com
for further details please contact
Barrie Williams
+44 7970 426972
[email protected]

Download Report