Category: Events

29
Mar

GBvi to exhibit at IMAGE 2018

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GBvi has been confirmed as exhibitor at IMAGE 2018 Conference

This year’s IMAGE Conference will be hosted by the University of Dayton, Ohio, from 26-27 June and will once again be a unique technical conference focused on visual simulation and related technologies.

About the IMAGE Society

The IMAGE Society, Inc. is a non-profit, technical, professional association for the advancement of visual simulation, related technologies, and their applications.

18
Dec

I/ITSEC 2017… Until Next Year!

gbvi iitsec chronos greyscale

While the show finished just a little over two weeks ago, I/ITSEC 2017 seems like an age back! 

For the first time GBvi exhibited in its own booth. While small in floorspace (10’ square) we’re confident we got the message across – we do optical blending!

Two Barco FS70 projectors, kindly loaned by Barco for the show, cross-fired onto a simple cylindrical screen, 90° across, with a Chronos optical blend between them.

Our new Chronos Greyscale plates were fitted to compact frames, interfaced to the Barco front support points via a lightweight framework.  At risk of being immodest, the blend was perfect and we received many compliments to that effect.  We developed Greyscale to address the challenge presented by laser phosphor light sources and higher projector pixel counts, both of which push the trade-offs harder when using our patterned masks.  Not to say that patterned masks are dead – they still offer excellent performance and sometimes represent the only high-quality option for some projectors such as 20K Lumen 3-chip units – but we now have another arrow in our quiver, so to speak.

So far as what else we saw at the show, we struggled to get off our booth to find out!  From a displays perspective there were several excellent systems on show, including those from IDSI (on multiple booths), Esterline, domeprojection.com and Q4.  The projector manufacturers also showed their latest and greatest, including 8K devices from JVC and Digital Projection and exciting new LED-illuminated projectors from Norxe and Barco. Apologies to any that we have missed – time was very limited this year…

However, it seems very likely that you’ll see us at I/ITSEC again in 2018.

Season’s Greetings and Wishes to all the Simulation & Training community!

16
Nov

GBvi to Premier Two New Technologies at I/ITSEC 2017

Sussex, England — 16 November 2017 — GBvi, an industry leader in the development of high performance projector optical blending solutions for out-the-window simulation and training, will be launching two new optical blend technologies at I/ITSEC 2017 in Orlando, Florida, from November 27th to December 1st. On the GBvi stand (#2736), conference attendees can see a live demonstration of two innovative new products – Chronos Greyscale and Chronos Rewind.

GBvi’s Chronos range of optical blending solutions enable display system integrators to achieve an even black level across multi-channel projection displays, realising the maximum dynamic range and enhancing the perception of life-like imagery.

Two new product additions to the Chronos range will be premiered for the first time by GBvi at IITSEC with on-stand demonstrations at the show.

DOWNLOAD CHRONOS BROCHURE

Chronos Greyscale

Chronos Greyscale is the new specialist GBvi optical blend technology that addresses the ‘small 4K’ and 8K class of projection systems where some optical trade-offs are most challenging, particularly with laser-phosphor illumination.

Chronos Greyscale is qualified for use with LED and laser phosphor projectors .

Chronos Rewind

“Use of Auto-Alignment (AA) systems for projection display calibration is becoming universal.” Geoff Blackham, founder and managing director of GBvi, explains. “While these systems produce excellent results, some perform best after removal of the blend masks from the light path to enable alignment and calibration to take place.”

Designed for use with a broad range of digital displays, Chronos Rewind addresses this issue, using an actuated platform and simple trigger interface to move the blend mask to and from the projector lens as required in a carefully controlled and precise manner.

This process allows for the blend to be retracted from the lens, auto calibration to be completed, and for the blend mask to be returned to its original, correct position.

Chronos Rewind allows for AA systems to be integrated alongside our Chronos optical blend masks as part of multi-channel displays.

“Our expertise in the field of projection display systems means we can provide an unrivalled service, helping customers with the whole display challenge – not confining our input to the blending alone.” says Blackham.

GBvi’s optical blending technology enables integrators to provide display systems which are free from the visual issues caused by digital blending. This means no ‘double-bright’ overlap regions, and no impact to contrast or dynamic range, as black level infill is no longer necessary to match blend brightnesses.

Chronos has been successfully implemented on WUXGA, WQXGA and 4K single-chip DLP, WUXGA and 4K 3-chip DLP and 4K LCoS projectors, including lamp, laser-phosphor and LED illuminated models.

To meet with GBvi at I/ITSEC 2017, please contact us at info@gbvi.co.uk

— ENDS —

ABOUT GBvi

GBvi (www.gbvi.co.uk) has a long standing heritage in the field of display systems design, specialising in optical blending solutions for multi-channel projection environments, with no limit to display size, screen shape or projector count. The company works with an extensive network of integrator partners, resellers and designers with a focus on the markets of simulation, entertainment and attractions.

PRESS CONTACT

Beth Nicholas   |    beth.nicholas@matchboxmedia.co.uk
+44 (0) 7891 291471

see gbvi at iitsec 2017

09
Aug

GBvi’s Geoff Blackham to Speak at Display Summit 2017

GBvi’s founder and director, Geoff Blackham, has been announced as a speaker at this year’s Display Summit, organised by Insight Media focussing on the technologies, issues and opportunities for projection-based and body-worn immersive display systems in training, simulation, visualisation and entertainment applications for commercial, military and professional markets.

This means flat, curved and domed projection-based simulators, trainers, theatres and 3D visualisation solutions as well as body-worn immersive solutions using virtual, augmented and mixed reality.

The event will be technical in nature with attendees and speakers coming from:

  • Professional projection, LCD and LED component suppliers
  • Professional projection and LCD and LED manufacturers
  • Training and simulation integrators and manufacturers
  • 3D visualisation integrators and developers
  • Domed theatre developers and suppliers
  • AR, VR and MR developers and manufacturers
  • Advanced display developers (light field, holographic, volumetric)
  • 4K+ connectivity providers
  • 4K+ hardware rendering providers
  • Government and military end users
  • Professional and commercial end users
  • Universities and technology development centres

Geoff’s presentation, titled ‘Optical Blending for Maximising Dynamic Range of Projection Displays‘ will be given at 16:05 on October 4th, 2017 and has a published abstract of:

Quality projection displays for visual simulation have evolved to use mainstream commercial projection devices, which, together with automatic alignment solutions, have dramatically reduced time required for their installation, alignment and maintenance.  However, one bugbear has remained in the form of projector light leakage when displaying dark scene content.  Electronic blending solutions exist that produce excellent results for bright scenes but, for continuous background intensity levels in dark scenes, infill techniques are often applied, which can sacrifice up to 75% of the possible dynamic range. Optical solutions to blending multiple channels can solve this problem, offering the promise to increase the utility and hence value of visual simulation training substantially, yet often this option is not even considered – so why is this?

Optical blending implementations – which place physical masks in the projection light paths – have been around for a long time, but a universal solution for all projector types and scene content has yet to become available.  Many solutions give relatively poor performance that can be tolerated for dark scenes such as those experienced in night training, so are actuated out of the light paths for use with daytime scenes.  These present logistical challenges to simulator users, where a choice must be made as to what “mode” you are training, or some transition must be suffered while the blending system switches mode.  Other solutions cannot withstand sustained light flux without degradation, so again must be actuated, while yet others may cause image sharpness degradation in the blend regions, so must be designed very carefully to limit this impact, particularly with high-resolution projectors.

Included in this presentation will be a review of the mainstream projection technologies and their respective pros & cons, particularly with regard to scene dynamic range and blend implications. This in turn leads to a detailed review of optical blending options, presenting their operating theories and application scope.

20
Jul
24
May

ITEC 2017: GBvi premieres Chronos Greyscale on Canon and Sony stands

Last week’s ITEC show in Rotterdam, the Netherlands was a huge success – thanks to all who stopped by our stand.

The trend of an increased need for optical blending to maximise dynamic range in projected display systems continues.

Chronos Greyscale – our new optical blend technology capable of blending 4K laser phosphor projectors was demonstrated on Canon and Sony stands – this specialist solution will be available from Q3 2017.

 

The technology works with true greyscale, 4K+ resolution projectors and is laser phosphor compatible with low light loss.

 

For more information, please contact us.
27
Apr

David Cotterrell’s 2nd Exhibition of Mirror III using GBvi’s VOID comes to close at Danielle Arnaud, London

For his fourth solo exhibition at the gallery, David Cotterrell presented three works from the Mirror project: a series of two-screen works produced in collaboration with Ruwanthie de Chickera at London’s Danielle Arnaud Gallery.

The travelling exhibition was open from 25 February to April 1.

Mirror III: Horizon examines what might transpire between two strangers if their communication was reduced to the language of lights. Filmed in Malta, set against the dramatic edges of the island’s stunning coast and contextualized by the island’s deep historical experience of visitors who arrived repeatedly by sea, the installation draws on the fluctuating paranoia of the current refugee crisis. Mirror III examines what might possibly be communicated between strangers if their words were reduced to beams of light and their faces need never be revealed.

The art installation comprises two VOID installations by GBvi, each presenting video media of a Pakistani guard communicating with the other in the secondary VOID. A suspended dome speaker above the installation ensures visitors only experience both sight and sound when underneath the audio and between each of the VOID stations.

VOID, an infinity display experience for educational spaces, attractions and themed experiences, uses special display techniques and light path management to create extreme depth cues and illusions of distance – so that viewers and audiences are provided with a sense of peering into space.

“It’s very difficult to transfer the sensation of place into reality. People can’t understand or recreate this experience from an illustration or image alone and we wanted to generate a sense of emotion and understanding from this installation. The VOID allowed us to do just that.” explains artist David Cotterrell.

“It was important that visitors became fully immersed and engaged with the media. We will continue to use this technology and refine how we apply it in future installations to continue innovating with depth cues and immersion in art.”

Available in a range of size, brightness, projection performance and playback configurations up to ultra-high contrast 4K, VOID is built to deliver realistic, immersive experiences.

For more information, visit http://gbvi.co.uk/home/void/

02
Mar
23
May

ITEC 2016 – great to see all

The GBvi team has returned from a great ITEC 2016 event in London. We met up with many faces old and new and are excited to continue being a part of such a vibrant and innovative industry.

See you again next year, if not at another event until then.

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10
Mar

GBvi to speak at ITEC 2016

ITEC 2016 is the annual forum where representatives from across the military, industry and academia connect and share knowledge about military simulation, training and education community. For more information on ITEC 2016, click here.

Geoff’s ITEC 2016 presentation is titled ‘Optical Blending – Difficult yet Essential for Maximising Dynamic Range of Projection Displays’

 

Here’s a snippet of the abstract…. For full details or to request a copy of the presentation, please contact us

 

Quality projection displays for visual simulation have evolved to use mainstream commercial projection devices, which, together with automatic alignment solutions, have dramatically reduced time required for their installation, alignment and maintenance. However, one bugbear has remained in the form of projector light leakage when displaying dark scene content.

Electronic blending solutions exist that produce excellent results for bright scenes but, for continuous background intensity levels in dark scenes, one must use infill techniques that sacrifice precious dynamic range. Often, solutions are commissioned that sacrifice up to 75% of the possible dynamic range, on the basis that ‘it’s the best you can get’. Often, this trade-off is not even apparent to the end-user, who therefore understandably assumes that the resulting performance really does represent the state of the art, which in turn limits the useful application scope of an expensive simulation system. Optical solutions to blending multiple channels can solve this problem, offering the promise to increase the utility and hence value of visual simulation training substantially, yet often this option is not even considered – so why is this?

 

Factors limiting the take-up of optical blending include: –

 

  1. Difficulty: implementing optical blending has proven to be surprisingly difficult. While standalone projected image quality of commercially available projectors is often excellent, optical characteristics tend to be unsympathetic to simple solutions. A systematic and well-founded methodology can lower this barrier substantially.
  2. Higher contrast projectors are available: even displays employing some of the more recent high-contrast projectors would benefit from optical blending – almost to the same degree as lesser contrast examples, owing to the enormous perception range of the human observer over a wide range of viewing conditions.
  3. Cost: while cost of the display system is certainly increased by the addition of optical blending hardware, it is a low proportion of visual system cost and the performance enhancement can represent value well in excess of this increase. Optical blending implementations – which place physical masks in the projection light paths – have been around for a long time, but a universal solution for all projector types and scene content has yet to become available. Many solutions give relatively poor performance that can be tolerated for dark scenes such as those experienced in night training, so are actuated out of the light paths for use with daytime scenes. These present logistical challenges to simulator users, where a choice must be made as to what ‘mode’ you are training, or some transition must be suffered while the blending system switches mode. Other solutions cannot withstand sustained light flux without degradation, so again must be actuated, while yet others may cause image sharpness degradation in the blend regions, so must be designed very carefully to limit this impact, particularly with high-resolution projectors.

The purpose of this paper is to inform the simulator operator and trainee community of this key area of visual system optimisation, including its cost-benefit analysis. Included in this will be a review of the mainstream projection technologies and their respective pros & cons, particularly with regard to scene dynamic range and blend implications. This in turn leads to a detailed review of optical blending options, presenting their operating theories and application scope. Finally, a new active optical blend technology is introduced that widens the range of display types that can benefit from high quality optical blending.