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nickeljohnson
Neurosurgery video
on Jan 22, 2007 at 7:46:12 pm

I am the Media specialist for the Department of Neurosurgery at the University of Utah. Right now I capture video from the onboard camera that is on the surgical microscope into my little pc running win2000. The program I am using converts my video to WMV on the fly. Doing that reduces my quality right off the bat but more importantly it makes it VERY hard to edit on my Mac, even with flip4mac.

So I am in the market for a new setup for capturing my video off of the scope. I have playing with the idea of a DVCPRO tape deck but would like to not have to spend the time transferring the video off the tape to my office computer.

I also thought of getting a laptop with a capture card on it but was unsure if I could get a laptop that could handle the capture. Obviously I can't hook up a Decklink HD extreme to a macbook pro and snag my video.

Is this the right forum to find an answer? Thank you for your time.


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cow
JerryZ@BH
Re: Neurosurgery video
on Jan 22, 2007 at 10:01:51 pm

What is the resolution and connector type (rca, bnc etc) on your scope?

jerryz@bhphotovideo.com


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Dave LaRonde
Re: Neurosurgery video
on Jan 22, 2007 at 11:33:33 pm

My experience: this sort of video is designed for the needs of the physicians (duh), there is very little standardization in the imagery from manufacturer to manufacturer, and we video guys have to jump through quite a few hoops to use it for our purposes.

To wit: instead of being 4x3 or 16x9, it may be a square screen aspect ratio. Or a circular picture inside a square box. Or a square picture with the corners cut at an angle, making the picture sort of octagonal -- I've seen that before as physicians inserted a stent during cardiac surgery. I've also seen situations where the images are recorded digitally into the machine in some odd resolution and off-the-wall, proprietary codec. Life ain't always easy.

I'd suspect that the docs record the video from the microscope camera on a pretty regular basis; you could check on how they're doing it. If they don't, then the manufacturer probably has done it for marketing videos. You might talk to one of the OR techs and see what you can learn, then contact the equipment manufacturer. I bet they've done this sort of thing before.

Currently, I'm in the midst of doing something vaguely similar: at my TV station, we have a new -- and really good -- weather graphics system. It came with archival Level II Nexrad data from which we can make radar displays, but it's data for Mongomery, Alabama or Tulsa, Oklahoma or someplace like that... and the images display themselves over that area. For promotional purposes, I'm trying to figure out how we can trick the system into thinking this data was recorded over our viewing area instead of over Montgomery or Tulsa.

Time to talk to the manufacturer!

Dave LaRonde
Sr. Promotion Producer
KCRG-TV


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nickeljohnson
Re: Neurosurgery video
on Jan 23, 2007 at 4:15:54 pm

Well I am in the OR right now and I will give you my digits. The camera on the scope is a Sony exwaveHAD 3ccd c-mount. Attatched to that is a very expensive coax cable that runs to a video box by sony. Model DXC-C33.

From there I have a composite out that runs the video to the wall so the video is projected through 6 TV's. I am using the s-video out (on the back of the sony box) to run it to the back of my computer.

On the back of that box I also have a "DV" (firewire) out, RGB/SYNC, EXT SYNC HD, and VD/SYNC. If it helps here is a link to the new camera system I am looking to get. http://www.ikegami.com/otr/products/medical_frame1.html

It is the HDL-20D model. There it lists all of the outputs and what not for that machine.

After capture I archive the footage until the doctor wants it for a presentation, dvd, online video, or whatever. I guess what I need to know is how can I get a macbook pro in there to capture the video or what DVCPRO deck should I look into for capture.

My only concern with the Macbook Pro is that this computer will have to be powerful enough for not just capture and edit of HD but it will also be my workstation for 3d animation of medical models. Having said that it might be best to get a mac pro tower and the DVCPRO deck so I have the power needed.

Any thoughts? Thank you again for your help.


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nickeljohnson
Re: Neurosurgery video
on Jan 23, 2007 at 4:20:56 pm

Sorry I forgot:

From what I can gather the video resolution is determined by this crappy software I am running, which is 640X480. The camera it self will shoot 720X480 regardles.

It is true that some times the picture is limited by black in the corners or the image is a little round thing in the middle of the veiw of the camera but it is still capturing that black part. I know that we all know that I am just going over it again.

So my current camera is 720X480 and the camera I would like as you can see will shoot 4:3 and 16:9 1080i.

I hope this helps


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Mark Suszko
Re: Neurosurgery video
on Jan 23, 2007 at 5:38:42 pm

Well, you could take the Dv out of the Sony box with a firewire cable right into your laptop and record it as DV, then make WMV type conversions later if needed. This alone will boost your quality. They just came out with a piece of software for the mac laptops that does most of what you can do on the PC laptops with DVC Rack or Scenealyzer.

The mac version is called Scopebox, and while brand new looks pretty good. Lets you record Dv straight to the laptop hard drive for editing. I don;t know if it will carry in any audio unless the camcorder or other device had a mic input, so you'd have to record the sound separately then marry them in your NLE system.


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Mark Suszko
Re: Neurosurgery video
on Jan 23, 2007 at 5:42:04 pm

Sorry for the typos, that's DVRack, for the PC laptops, made by Serious Magic, and "Scopebox" made for mac laptops. Scenalyzer is more of a freeware/shareware solution on the PC laptop side, but it has a lot of capability as well.


Your other alternative is to add a scan converter to the Sony output, that would feed into your DVC Pro deck but there you're looking at around six grand for something of the quality suitable for medical-grade work, while last time I looked the Scopebox and DVRack were around a grand or less, if you already have a laptop.


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JerryZ@BH
Re: Neurosurgery video
on Jan 23, 2007 at 10:55:17 pm

The ikegami unit has DV out. You should be able to plug this into your MacBook Pro and record away without a problem. It might work with the DVCPro equipment as well however DVCPro 25 is Panasonics version of DV so there is no way of telling without trying it out. If you don't have to use DVCPro then a standard DV deck like the Sony DSR-11 should do the trick.

jerryz@bhphotovideo.com


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nickeljohnson
Re: Neurosurgery video
on Jan 24, 2007 at 9:44:26 pm

My only concern with the laptop route would be if there is enough power in the laptp to run my 3d animation programand edit HD. Maybe the Macbook Pro could handle both of those.

Do any of you know much about Focus Enhancments FS-4Pro HD? That could hook up to the firewire on the back of the video box then I could transfer it over to my editing Mac in my office.

Thank you for all your input.


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JerryZ@BH
Re: Neurosurgery video
on Jan 25, 2007 at 2:25:27 pm

I spoke to Softimage about running on a Macbook Pro using bootcamp and although it's not officially supported by Softimage they said it was running great. If it will run Softimage via bootcamp it will run just about anything. As for the Firestore, well it's a crapshoot. If Ikigami used some strange version of DV it might be problematic. However, if you set the Firestore so it just records what you throw at it (in otherwords not set up to respond to camera control) then it should work. So, you plug the Firestore into the Iki unit, hit record, then just use your camera as usual, but if you turn your camrea off the Firestore will probably continue to record nothing just like a tape deck. People have been capturing video on much less powerful Macs for years without a hitch. I think you'll be fine unless Iki did something crazy.

jerryz@bhphotovideo.com


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Mark Suszko
Re: Neurosurgery video
on Jan 25, 2007 at 3:52:53 pm

Be sure to read the fine print too: on the Iki page it says not all outputs are enabled on all models, the plugs may be connected to nothing inside. make sure the one you have or get has the DV output actually functional before you make a commitment.


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nickeljohnson
Re: Neurosurgery video
on Jan 25, 2007 at 4:19:18 pm

Thank you for all of the information I have received on this forum. Now I just need to sort every thing out and decide what to get. Any way I go the quality will be much higher than what I am getting right now. Thanks again.


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jerbone
Re: Neurosurgery video
on Mar 26, 2007 at 5:47:40 pm

Do you have OR footage available to purchase for tradeshow and website use? Brain surgery specifically. Craniotomy ideally. I would only need 10-15 seconds total.

Thanks

Jerry

215.629.2000


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nickeljohnson
Re: Neurosurgery video
on Mar 26, 2007 at 6:40:30 pm

Jerbone,
I am sad to say that I cannot sale or otherwise distribute the video captured in the OR. I am sorry for any inconvenience this may have caused you.



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nickeljohnson
Re: Neurosurgery video
on Mar 26, 2007 at 6:43:30 pm

So to let y'all know what I have drummed up. I have a Mac Book Pro capturing video from the surgical microscope through a fire wire. I am using Scopebox to capture the video as DVCPRO right to my hard drive. It works beautifully and the video quality is outstanding compared to the WMV I was getting from the old pc. Thanks for all of your help.



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Mark Suszko
Re: Neurosurgery video
on Mar 26, 2007 at 8:33:09 pm

HTH, Congrats.


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