Do the latest commercial Platform Packs finally support multi-cam access via DirectShow component?
Posted: 05 July 2012 05:08 AM   [ Ignore ]
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So that, out of a mere accident, at least the Platform Packs (even if the driver and SDK fails), could be used in LabVIEW. VisionExpress only recognises devices that are enumerated as a DirectShow component. Many oeple would be buying, but we need multi-cam support, cameras must be recognised by VisionExpress within LabVIEW 2010 SP1 Professional.

Please? Anyone from Codelabs, or anyone else knowledgeable in this matter?

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Posted: 05 July 2012 12:51 PM   [ Ignore ]   [ # 1 ]
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Thank you. We will look into this issue with LabVIEW 2010 SP1 Pro.

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Posted: 07 July 2012 03:47 AM   [ Ignore ]   [ # 2 ]
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Thanks for your reply. A corresponding addition / exptension of the driver (supporting 1 cam in LabVIEW VisionExpress already) existing SDK (supporting 2 cams, but not in LabVIEW) would be great. Once that’s tested, we’d definitely be looking into buying the Platform Packs for more cameras, should these proivde LabVIEW / VisionExpress support for more cameras.

As a side comment, more and more modern webcams seem to offer 2 cam support as default by means of consumer drivers (Micro$oft LifeCam HD Cinema, Logitech Webcam Pro 9000, Logitech C910 1080p, etc), presumably for conferencing purposes. Many would still prefer the PS3 Eye, due to the availability of fixed frame rates.

Alternatively, a separate, dedicated LabVIEW driver supporting 2 cams would also be fine, as long as both are recognised by VisionExpress (DirectShow ported or otherwise). I believe it would really be a strong addition, considering LabVIEW’s affinity to and potential in machine / computer vision. Perhaps you could include versions of this supporting more than 2 cameras in the corresponding Platform Packs? I am sure that at your current prices at least, customer numbers would jump with all LabVIEW vision developers interested. The OV7720 is one of the best low grade machine vision sensors with its 36um sensor pixel area, especially with your already implemented fixed framerates available.

Just one last comment with regard to this, a chip-level 8bit monochrome output format option, with the associated fixed frame rates and resolutions would also be greatly welcomed (capturing intensity only would not only save USB 2.0 bandwidth, relevant when using 2 or more cameras, but would significantly reduce noise artefacts at higher frame rates, I would assume - many developers require monochrome only, including developers working with in-situ kinematic metrology where fixed frame rates are key due to motion analysis, and those using IR in general).

Awaiting eagerly,
Sincerely,
Metrologue

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