In Broadcast - September 2021 - 67

www.inbroadcast.com | Vol: 11 - Issue 9 | September 2021
67
InTech
Cameras for video assistant referee
systems (VAR) - What should they be like? cont'd...
The most convenient way to control
the cameras is to do it from the server
software. No additional equipment
is required, the operator can quickly
configure
the
camera
and
unlike
external consoles, settings cannot be
lost.
The same Ethernet cable can also be
used to power the camera using Power
over Ethernet technology (PoE). This
not only avoids additional cabling, but
is also useful for mobile VAR systems
because there may not be a standard
power source near the camera.
The availability of a
Power Bank is also an
advantage.
If cameras can operate in
sync mode, they are ideal
for the video-refereeing
applications.
The sport specifics
For some sports there
are additional camera
requirements. So, when
working with water sports
cameras should allow
the installation of a polarizing filter.
Otherwise, the light glares from the
water surface will complicate the
process. The same applies to ice
hockey.
PTZ cameras
PTZ cameras have a controllable lens
and are often waterproof. Pan, tilt and
zoom adjustments of these cameras
can be accidentally changed (let's not
exclude the human factor).
Despite being more expensive
than cameras without PT capability,
PTZ cameras are suitable for videorefereeing
(e.g. Panasonic AW-HE42).
Super Slow Motion
cameras usage
Everything mentioned earlier applies
to the standard speed cameras.
However, SSM cameras, which provide
more frames per second, require
a more powerful server with more
recording channels, better processor
and larger storage capacity.
The 2x cameras use 2 SDI recording
channels or require specialized
interfaces such as HDMI
2.0, which does not
transmit the signal over
long distances.
A sensible idea is to use
SSM cameras in certain
areas, for example, on
the " blue lines " in hockey
to analyze the " offside "
position. But it should
be understood that for
situations in which the
position of objects at a
particular point in time
plays a key role, only synchronous with
each other SSM cameras should be
used without considering the standard
cameras.
Let's review an offside
situation
in soccer. While a normal camera
generates one frame, the SSM camera
generates two frames.
On the normal camera we will see
the kick, and the first frame from the
SSM camera will show no offside but
the second frame will show the player
in offside position. Which frame should
we believe? The referee should not
make this choice, everything must be
accurate.
For such situations you need an
elaborate
set
cameras.
As an example of cameras specially
designed to work in VAR systems,
you might consider the slomo.tv
mini-II-VR-CAM.
It provides Cloud Genlock, built-in
10x/3x Zoom lens, PoE or micro-USB;
control via Ethernet of Zoom, Focus,
IRIS, Exposition & Color Correction.
https://slomo.tv
Datavideo launches brand new website
D
atavideo is proud to announce
its brand-new website to the
world. The global offices of the
Taiwanese company have worked on
the release of the new website in the
past couple months to make sure that
the experience is what you expect from
Datavideo.
AV and broadcasting solutions
For the past 35 years, Datavideo
has grown rapidly to become one
of the world's leading innovators of
professional live video technology.
Datavideo is known for cost-effective
end-to-end workflow solutions for
broadcast and A/V applications which
include up to 150 products such
as cameras, switchers, encoders,
recorders, intercoms, converters, and
other key products needed for live
video production.
Solution centered
The new website is centered around
solutions
rather
than
separate
products. Of course, you can find all
products on the website, but also a lot
of solutions that might be useful for
Knowledge base
your situation. " Datavideo has such an
extensive line of products nowadays,
it's becoming hard to explain what
we are currently selling. " Explains
Johan Lieffers, Managing Director of
Datavideo Technologies Europe BV.
" A solution focused presentation
works better, you can immediately see
how and where Datavideo can help
you. "
Extensive library
The black themed website is not
just a banner for all the products
that Datavideo is selling. It's also
a comprehensive library with all
manuals, certificates, firmware
versions and much more on all
Datavideo products. Every Datavideo
product can be found on there in case
you need to find something important.
Where to buy
In case you're inspired by one of
the solutions on the website, you
can quickly go to the " Where to buy "
section to find the nearest Datavideo
representative. With a global
distribution network in more than 150
countries there should always be a
dealer close to you. Otherwise, you can
also find the various worldwide online
shops that sell Datavideo products and
ship to your location.
Typically, you can find an FAQ
section on every manufacturer's
website. Datavideo goes the next step
and launches a fully catered online
environment where the customer can
look up solutions for problems that
have been logged to the companies
worldwide support technicians.
This way the information that can
be found on there is up-to-date and
comes from the actual people that
solved the problem.
And if the user can't find what he's
looking for, he is welcome to ask it
to one of Datavideo's well endorsed
technicians.
even
" We hope to serve our customers
better with
this
brand-new
website. We've put in a lot of effort to
ensure that the content connects to
the users demands. " States Valentijn
Diemel, Marketing
Manager EMEA at the
European head office.
of
synchronous SSM
http://www.inbroadcast.com https://slomo.tv/en/ https://slomo.tv/en/ http://www.slomo.tvmini-ii-vr-cam http://www.slomo.tvmini-ii-vr-cam https://www.slomo.tv http://www.datavideo.com http://www.datavideo.com http://www.datavideo.com
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