Difference between revisions of "Technical Information"
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I will receive the ultrasound images via a video capture card. I am going to use V4L as the card driver. | I will receive the ultrasound images via a video capture card. I am going to use V4L as the card driver. | ||
− | ==== Capture | + | ==== Capture Card ==== |
− | * Existing Videocard: Hauppauge ImpactVCB [http://www.haupauge.com/site/products/data_impactvcb.html] | + | * Existing Videocard: Hauppauge WIN-TV PCI Board ImpactVCB [http://www.haupauge.com/site/products/data_impactvcb.html] |
* Linux Driver: Video4Linux2 | * Linux Driver: Video4Linux2 | ||
− | * | + | * The Linux driver (bttv) for the WinTV card is now part of the Linux kernel (version 2.2 and newer). |
− | |||
− | + | ==== Video4Linux ==== | |
− | |||
− | |||
− | |||
− | |||
* [http://linuxtv.org/v4lwiki/index.php/Main_Page V4L Wiki] | * [http://linuxtv.org/v4lwiki/index.php/Main_Page V4L Wiki] | ||
+ | ** [http://linuxtv.org/v4lwiki/index.php/Bttv_devices_%28bt848%2C_bt878%29 Driver for our Video Card] | ||
* [http://www.exploits.org/v4l Another page] about V4L | * [http://www.exploits.org/v4l Another page] about V4L | ||
* [http://linux.bytesex.org/v4l2/ Additional Information] | * [http://linux.bytesex.org/v4l2/ Additional Information] | ||
* [http://www.thedirks.org/v4l2/ Old Informaton] the might not be be up to date anymore | * [http://www.thedirks.org/v4l2/ Old Informaton] the might not be be up to date anymore | ||
+ | |||
+ | ==== Contacts ==== | ||
+ | * Christoph Ruetz | ||
+ | ** [http://wiki.ncigt.org/index.php/User:Ruetz Project Page] | ||
=== Tracking device === | === Tracking device === |
Revision as of 19:39, 19 November 2008
Home < Technical InformationContents
Technical information about the Connection of Synchrograb to Slicer
SynchroGrab
SynchroGrab was developed at Queen's University Kingston, Canada. I generates 3D ultrasound volumes. In order create to create the 3D image it collects image data from an ultra sound device and combines them with the position data of tracking device. With the combination of images and position Synchrograb generates a 3D volume. At the end this 3D image is send to Slicer via OpenIGTLink.
In summary SynchroGrab does:
- Continuous acquisition of ultrasound images using an open-interface ultrasound system;
- Continuous acquisition of tracking information using a pose measurement system;
- Explicit synchronization of the two acquisition threads;
- Reconstruction of 3D ultrasound volumes using the synchronized data; and
- Transfer of the raw ultrasound images, the 3D volumes and the probe tracking information to an OpenIGTLink-compliant system.
TO DO
- Adjust the tracker part, so that our tracker is working
- Replace image acquistion part. We have to use a frame grabber card instead of reading the images directly from memory
Crate and use a tracking device simulatorCreate and use a ultrasound simulatorFind out what is already coverd by SynchrograbCompile Synchrograb and see if everthing is working
Contacts
- Jonathan Boisver
- Post Doc from Canada who implemented most of Synchrograb
- E-Mail: boisvert ( a t ) cs.queensu.ca
Ultrasound device
I will receive the ultrasound images via a video capture card. I am going to use V4L as the card driver.
Capture Card
- Existing Videocard: Hauppauge WIN-TV PCI Board ImpactVCB [1]
- Linux Driver: Video4Linux2
- The Linux driver (bttv) for the WinTV card is now part of the Linux kernel (version 2.2 and newer).
Video4Linux
- V4L Wiki
- Another page about V4L
- Additional Information
- Old Informaton the might not be be up to date anymore
Contacts
- Christoph Ruetz
Tracking device
Track data via vtk not itk
Contacts
- Haiying Liu
- He knows how to do this part, so there should be no big issues
Calibration
Description: To get the correct information from the ultrasound device it has to be calibrated
Contacts
- Raul San Jose
Information:
- I have serval links and information from Raul on which I have to go through
Slicer
So far there is nothing to do in Slicer, since I am just sending the complete 3D Volume via OpenIGTLink. The only work that has to be done by Slicer is to render and visualize the data.
3D CUDA
I might not use Cuda accerlation since there is no real performance advantage at this point
TO DO
- Nothing
Contacts
- Ben Grauer: Volume Rendering with CUDA
- Nicholas Harlambang: CUDA Guru
Documentation: VolumeRenderingCuda Module
- Adjust the threshold (scroll bar below 'Component Weights Scrollbars') to correct values. Especially the lower value. Normally > 0
- Scalar Opacity Mapping: Shows a histogram of the used values an their transparence. Low transparent, high solid
- Scalar Color Mapping: You can click into and than in the color circle above and select certain colors for a specific value
- Composite: Here you can select different rendering modes
- Volume: You can also select just to display a slice instead of the whole volume. You can transform the slice in the Transforms Module and than select the transformation matrix in Slice Matrix
- Plus/Minus: Select if you want to see everything or just the volume on one side of the slice and on the other
How to "Enable CUDA 2.0 in Fedora 8 for use with Slicer 3.3 Alpha"
Date: Sept. 26th 2008
Fedora 8 is the newest Fedora version for which CUDA is available. The available CUDA Version is 2.0.
To enable CUDA 2.0 in Fedora 8 for Slicer 3.3 Alpha follow the steps below:
Installation of Drivers
- Download the CUDA installation files (Driver, Toolkit, SDK) here [2] and remember the directory in which you downloaded them. I used
for the driver installation binary
~/Download/CUDA/Driver/
for the tool kit installation binary
~/Download/CUDA/Toolkit/
and for the SDK installation binary
~/Download/CUDA/SDK/
- For the installation there must not run a X-Server. Therefore we have to restart the computer. When you see the GRUB Bootscreen after the reboot press any key to enter the GRUB menu. Highlight the Fedora Version you want to boot and press
a
Then type
Type 3
and hit the 'Enter' key. Fedora will boot up without X Server and drop you at Command Line Login prompt.
- Login and change into root mode via:
su
- Then switch to the directory where you downloaded the driver. For me this means:
cd ~/Download/CUDA/Driver/
- Now we have to change the permissions for the driver-binary and make it executable. This works with
chmod +a BINARY-NAME
(Replace 'BINARY-NAME' with the name of the driver binary)
- Now start the installation with:
./BINARU-NAME
I changed none of the default values during the installation
- For the sdk compilation follow this reference guide: [3]
If you get the error message: "ld: cannot find -lglut", like I did, have a look at the reference under 'IV. Known Issues'
- In the next step we do the same for the toolkit and for the sdk, e.g chance to the according directory, change the permissions and run the installation with the default values
Enable CUDA in Slicer 3.3 Alpha
- Start with the installation manual of Ben Grauer. You find it here [4]
Below you find corrections to certains points that did not work for me the way it was explained in the manual
- In 1.1.2 Check out the following slicer branch instead and build it:
svn co http://svn.slicer.org/Slicer3/trunk Slicer3 ./Slicer3/Scripts/getbuildtest.tcl
- Before you can go on with step 1.2.2 you have to Uncomment:
- CudaSupport in Slicer3/Libs/CMakeLists.txt
- VolumeRenderingCuda in Slicer3/Modules/CMakeLists.txt
- In step 1.2.2
- you have to use your build directory (Slicer-build) as parameter for ccmake
- for CUDA_INSTALL_PREFIX use /usr/local/cuda
- for FOUND_CUT use $HOME/NVIDIA_CUDA_SDK/common/lib/linux/libcudpp.a
- for FOUND_CUT_INCLUDE use $HOME/NVIDIA_CUDA_SDK/common/inc
- Step 1.2.3 was not necessary for me
- Just do a rebuild (run Slicer3/Scripts/getbuildtest.tcl) and the VolumeRenderingCUDA module is available
This installation worked for me on a DELL machine with XEON Dual Core and a Nvidia G8800. For fast rendering make sure not enable compiz(Desktop Effects).