# \#openigtlink

**URL:** https://discourse.slicer.org/tag/openigtlink/78.md

[Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md)

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## [RF data streaming from the BK Activ](https://discourse.slicer.org/t/rf-data-streaming-from-the-bk-activ/48025)

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**Author:** [@J.vd.Zee](https://discourse.slicer.org/u/J.vd.Zee)\
**Replies:** 2\
**Last updated:** [August 31, 2026, 7:26pm UTC](https://discourse.slicer.org/t/rf-data-streaming-from-the-bk-activ/48025 "2026-08-31T19:26:01Z")

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We would like to perform research on the raw RF data acquired with a BK Activ ultrasound scanner, with the aim of developing and evaluating methods for improving ultrasound image quality. Could anyone advise us on: whi…

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## [PlusToolkit with GE Ultrasound using AppAPI + OpenIGTLink](https://discourse.slicer.org/t/plustoolkit-with-ge-ultrasound-using-appapi-openigtlink/47133)

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**Author:** [@nicxo99](https://discourse.slicer.org/u/nicxo99)\
**Replies:** 0\
**Last updated:** [May 24, 2026, 8:34am UTC](https://discourse.slicer.org/t/plustoolkit-with-ge-ultrasound-using-appapi-openigtlink/47133 "2026-05-24T08:34:32Z")

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Hello! I am trying to connect a GE ultrasound machine to the Plus framework for free-hand calibration (fCal). I am using Slicer to check that the data is valid. I wrote a small program in C++ that sends image data using…

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## [OpenIGTLinkIF not updating transforms](https://discourse.slicer.org/t/openigtlinkif-not-updating-transforms/36992)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 6\
**Last updated:** [April 4, 2026, 8:31pm UTC](https://discourse.slicer.org/t/openigtlinkif-not-updating-transforms/36992 "2026-04-04T20:31:45Z")

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I am trying to troubleshoot using an NDI trakSTAR electromagnetic 3D tracker using OpenIGTLinkIF. I have gotten the same system working on other computers, but am running into an odd error where the tracked transforms a…

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## [Controlling Volume Reslice Driver to follow 5DOF inplane view of tool](https://discourse.slicer.org/t/controlling-volume-reslice-driver-to-follow-5dof-inplane-view-of-tool/44712)

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**Author:** [@ruffsl](https://discourse.slicer.org/u/ruffsl)\
**Replies:** 4\
**Last updated:** [October 10, 2025, 11:09pm UTC](https://discourse.slicer.org/t/controlling-volume-reslice-driver-to-follow-5dof-inplane-view-of-tool/44712 "2025-10-10T23:09:06Z")

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I’d like show a 5DOF inplane view of needle using the Volume Reslice Driver extension, with the 6th DOF rotation locked in alignment with respect to a canonical axis in the global RAS reference frame, providing a more gr…

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## [Missing prebuilds for IGT extensions for Preview Release 5.9](https://discourse.slicer.org/t/missing-prebuilds-for-igt-extensions-for-preview-release-5-9/44143)

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**Author:** [@ruffsl](https://discourse.slicer.org/u/ruffsl)\
**Replies:** 13\
**Last updated:** [August 28, 2025, 2:42pm UTC](https://discourse.slicer.org/t/missing-prebuilds-for-igt-extensions-for-preview-release-5-9/44143 "2025-08-28T14:42:20Z")

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Hello, I’m developing slicelet for image guided therapy, particularly a scripted slicelet for simpler R&D. Ideally we’d like to use the Preview Release of Slicer 5.9 that ships with a more recent version of Python 3.12, …

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## [Streaming Red Slice to mobile device](https://discourse.slicer.org/t/streaming-red-slice-to-mobile-device/10927)

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**Author:** [@mcfly3001](https://discourse.slicer.org/u/mcfly3001)\
**Replies:** 21\
**Last updated:** [October 13, 2021, 6:36pm UTC](https://discourse.slicer.org/t/streaming-red-slice-to-mobile-device/10927 "2021-10-13T18:36:30Z")

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Hi, I am currently trying to find out how I could stream one of Slicers slices (e.g. the red slice) to another device. There seem to be lots of options to receive image streams in Slicer (e.g. PlusToolkit, OpenIGTLink) …

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## [Real-time mesh deformation within PLUS Server](https://discourse.slicer.org/t/real-time-mesh-deformation-within-plus-server/43799)

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**Author:** [@naomi-rc](https://discourse.slicer.org/u/naomi-rc)\
**Replies:** 3\
**Last updated:** [July 23, 2025, 6:24am UTC](https://discourse.slicer.org/t/real-time-mesh-deformation-within-plus-server/43799 "2025-07-23T06:24:43Z")

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Hello :waving\_hand:, I’ve been using PLUS Server for generating real-time ultrasound in a Unity simulation. I know the models specified in the configuration file are loaded once at the start into PLUS. I’m wondering if…

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## [Issues tracking two tools at once](https://discourse.slicer.org/t/issues-tracking-two-tools-at-once/41870)

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**Author:** [@Arber\_Demi](https://discourse.slicer.org/u/Arber_Demi)\
**Replies:** 6\
**Last updated:** [March 5, 2025, 9:20am UTC](https://discourse.slicer.org/t/issues-tracking-two-tools-at-once/41870 "2025-03-05T09:20:35Z")

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Hello everyone. I am working on developing a small tracking script to store specific tracking data, and in my specific case I need to track two tools at the same time. One of them is a pointer, and the other can be anyt…

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## [Question about Real-time Ultrasound Volume Reconstruction using SteamVR Tracker](https://discourse.slicer.org/t/question-about-real-time-ultrasound-volume-reconstruction-using-steamvr-tracker/41846)

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**Author:** [@MasatoshiOBA](https://discourse.slicer.org/u/MasatoshiOBA)\
**Replies:** 0\
**Last updated:** [February 23, 2025, 10:42am UTC](https://discourse.slicer.org/t/question-about-real-time-ultrasound-volume-reconstruction-using-steamvr-tracker/41846 "2025-02-23T10:42:33Z")

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Question: Overview: I am planning to perform ultrasound volume reconstruction using a SteamVR-compatible tracker. Currently, I have successfully used pyigtl to send tracking data to Slicer, and Slicer receives it as a T…

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## [Listen to IGTLStatus node added](https://discourse.slicer.org/t/listen-to-igtlstatus-node-added/41528)

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**Author:** [@Arber\_Demi](https://discourse.slicer.org/u/Arber_Demi)\
**Replies:** 0\
**Last updated:** [February 6, 2025, 2:20pm UTC](https://discourse.slicer.org/t/listen-to-igtlstatus-node-added/41528 "2025-02-06T14:20:37Z")

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Hello everyone! I am trying to automatically query some data from a medical device immediately after it accepts the connection. I see that an IGTLStatus node appears in the I/O configuration dropdown of the OpenIGTLink…

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## [How to validate the accuracy of a vision-based tracking instrument in 3D Slicer navigation?](https://discourse.slicer.org/t/how-to-validate-the-accuracy-of-a-vision-based-tracking-instrument-in-3d-slicer-navigation/40833)

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**Author:** [@wenlin\_x](https://discourse.slicer.org/u/wenlin_x)\
**Replies:** 0\
**Last updated:** [December 23, 2024, 8:51am UTC](https://discourse.slicer.org/t/how-to-validate-the-accuracy-of-a-vision-based-tracking-instrument-in-3d-slicer-navigation/40833 "2024-12-23T08:51:30Z")

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Hi everyone, I’m developing a vision-based tracking instrument and would like to use it for navigation in 3D Slicer. So far, I have completed the following steps: Installed the “IGT” module in 3D Slicer. Created a nee…

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## [Tracking Ball Fiducials in Slicer IGT](https://discourse.slicer.org/t/tracking-ball-fiducials-in-slicer-igt/40806)

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**Author:** [@goodac](https://discourse.slicer.org/u/goodac)\
**Replies:** 0\
**Last updated:** [December 19, 2024, 5:07pm UTC](https://discourse.slicer.org/t/tracking-ball-fiducials-in-slicer-igt/40806 "2024-12-19T17:07:03Z")

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Hello, I have been working on tracking fiducials for a while, and have managed to run the ArUco tracking with Plus Server successfully. However, we would like to be able to track instruments with standard navigation ar…

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## [Seeking Guidance: IMU-based Tracking for Real-time 3D Ultrasound Reconstruction using Plus Toolkit and Slicer](https://discourse.slicer.org/t/seeking-guidance-imu-based-tracking-for-real-time-3d-ultrasound-reconstruction-using-plus-toolkit-and-slicer/40539)

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**Author:** [@MasatoshiOBA](https://discourse.slicer.org/u/MasatoshiOBA)\
**Replies:** 1\
**Last updated:** [December 7, 2024, 5:47am UTC](https://discourse.slicer.org/t/seeking-guidance-imu-based-tracking-for-real-time-3d-ultrasound-reconstruction-using-plus-toolkit-and-slicer/40539 "2024-12-07T05:47:47Z")

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Dear Slicer and Plus Toolkit Community, I am currently working on a project for real-time 3D ultrasound reconstruction. My work is largely guided by the excellent tutorials provided by the developers of 3D Slicer and th…

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## [Upscale cropped videostream](https://discourse.slicer.org/t/upscale-cropped-videostream/40054)

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**Author:** [@J.vd.Zee](https://discourse.slicer.org/u/J.vd.Zee)\
**Replies:** 0\
**Last updated:** [November 6, 2024, 2:44pm UTC](https://discourse.slicer.org/t/upscale-cropped-videostream/40054 "2024-11-06T14:44:51Z")

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Hi all, In the Plus Server Launcher, videos can be streamed to 3D Slicer. Moreover, within this configuration (i.e., .xml file, mmfVideo, Media Foundation) users can crop the incoming video stream by the ClipRectangle… …

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## [Fail to create OpenIGTLink server socket on the same port immediately after another server has just stopped](https://discourse.slicer.org/t/fail-to-create-openigtlink-server-socket-on-the-same-port-immediately-after-another-server-has-just-stopped/39778)

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**Author:** [@Filippo\_Parronchi](https://discourse.slicer.org/u/Filippo_Parronchi)\
**Replies:** 1\
**Last updated:** [October 21, 2024, 8:16pm UTC](https://discourse.slicer.org/t/fail-to-create-openigtlink-server-socket-on-the-same-port-immediately-after-another-server-has-just-stopped/39778 "2024-10-21T20:16:48Z")

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Hello! I am establishing a connection between 3Dslicer (installed on my server) and Unity to render my volumes on an AR headset using the Open IGTLink communication protocol. My Python script is executed on the server vi…

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## [SlicerIGT tutorial](https://discourse.slicer.org/t/slicerigt-tutorial/39738)

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**Author:** [@DanielGu](https://discourse.slicer.org/u/DanielGu)\
**Replies:** 10\
**Last updated:** [October 18, 2024, 3:15pm UTC](https://discourse.slicer.org/t/slicerigt-tutorial/39738 "2024-10-18T15:15:19Z")

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Hi, I’m a very beginner of 3dslicer and slicerIGT, and I would like to connect my webcam to 3dslicer by using slicerigt I’ve changed CaptureDeviceID, Framesize, Videoformat, also port, but still ‘conn…

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## [IJCARS paper using Slicer for neurosurgery research](https://discourse.slicer.org/t/ijcars-paper-using-slicer-for-neurosurgery-research/17657)

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**Author:** [@pieper](https://discourse.slicer.org/u/pieper)\
**Replies:** 1\
**Last updated:** [October 15, 2024, 9:43pm UTC](https://discourse.slicer.org/t/ijcars-paper-using-slicer-for-neurosurgery-research/17657 "2024-10-15T21:43:46Z")

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This paper just came out about neurosurgery work at University College London in the UK using Slicer. They have a lot of good things to say, but I particularly liked this line: We chose to build the system using 3D …

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## [Matching volumes](https://discourse.slicer.org/t/matching-volumes/38515)

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**Author:** [@Olivier](https://discourse.slicer.org/u/Olivier)\
**Replies:** 6\
**Last updated:** [October 3, 2024, 9:29am UTC](https://discourse.slicer.org/t/matching-volumes/38515 "2024-10-03T09:29:59Z")

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Hello, Context: I have volumes from the same muscle collected with 3D ultrasound and the IGT link extension, at 2 different time points. Aim: After volume reconstruction, I would like to match the volume orientation …

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## [Learning how to use pyigtl](https://discourse.slicer.org/t/learning-how-to-use-pyigtl/24210)

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**Author:** [@Elvis\_Chen](https://discourse.slicer.org/u/Elvis_Chen)\
**Replies:** 2\
**Last updated:** [July 6, 2022, 7:07pm UTC](https://discourse.slicer.org/t/learning-how-to-use-pyigtl/24210 "2022-07-06T19:07:55Z")

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Operating system: 10 Slicer version: n/a Expected behavior: receiving an imaged with embedded transform Actual behavior: received “None” hi all, I am trying to create a python program that receives tracked images fr…

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## [How can I record multiple video inputs at the same time from Slicer?](https://discourse.slicer.org/t/how-can-i-record-multiple-video-inputs-at-the-same-time-from-slicer/20928)

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**Author:** [@lb123](https://discourse.slicer.org/u/lb123)\
**Replies:** 16\
**Last updated:** [March 25, 2024, 11:59am UTC](https://discourse.slicer.org/t/how-can-i-record-multiple-video-inputs-at-the-same-time-from-slicer/20928 "2024-03-25T11:59:54Z")

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Hi, I’m broadcasting 2 acquired videos through OpenIGTLink from Plus Server to Slicer 4.13.0. The videos consist in live data coming from 2 epiphan frame grabbers. I can correctly see both the live videos on Slicer. I…

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## [(Open)IGTlink supported modality vendor list](https://discourse.slicer.org/t/open-igtlink-supported-modality-vendor-list/34913)

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**Author:** [@jde](https://discourse.slicer.org/u/jde)\
**Replies:** 2\
**Last updated:** [March 18, 2024, 9:01am UTC](https://discourse.slicer.org/t/open-igtlink-supported-modality-vendor-list/34913 "2024-03-18T09:01:32Z")

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Hi, is there an uptodate list of hardware vendors that support OpenIGTlink? (I’d ask this on OpenIGTlink but it looks like the project itself is no longer alive, or at least the contact page is a dead link) I’m lookin…

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## [Poor resolution ultrasound stream](https://discourse.slicer.org/t/poor-resolution-ultrasound-stream/33459)

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**Author:** [@J.vd.Zee](https://discourse.slicer.org/u/J.vd.Zee)\
**Replies:** 1\
**Last updated:** [December 19, 2023, 4:28pm UTC](https://discourse.slicer.org/t/poor-resolution-ultrasound-stream/33459 "2023-12-19T16:28:55Z")

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Hi all! I have a question regarding the streaming quality of my framegrabber to 3D Slicer (using the Plus Sever). I use the coding script for streaming named ‘Video for Windows compatible imaging device’ and change the …

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## [Unity tracking bridge client and ultrasound server... help needed](https://discourse.slicer.org/t/unity-tracking-bridge-client-and-ultrasound-server-help-needed/26324)

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**Author:** [@Allan](https://discourse.slicer.org/u/Allan)\
**Replies:** 3\
**Last updated:** [August 8, 2023, 4:47pm UTC](https://discourse.slicer.org/t/unity-tracking-bridge-client-and-ultrasound-server-help-needed/26324 "2023-08-08T16:47:25Z")

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Hi all, I am pretty new to slicer, actually I stumbled over it yesterday and I have a problem that could be easy to solve or it is just impossible :slight\_smile: I have some experience in spatial tracking using unity w…

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## [OpgenIGTLinkIF: How to use BindMessages](https://discourse.slicer.org/t/opgenigtlinkif-how-to-use-bindmessages/6093)

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**Author:** [@mcfly3001](https://discourse.slicer.org/u/mcfly3001)\
**Replies:** 12\
**Last updated:** [July 25, 2023, 12:48pm UTC](https://discourse.slicer.org/t/opgenigtlinkif-how-to-use-bindmessages/6093 "2023-07-25T12:48:27Z")

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Hi everyone, I am trying to receive some data via OpenIGTLink with additional data added. For example I can already receive a vtkMRMLScalarVolumeNode but in this node I cannot include information about the patient (e.g.…

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## [Slicer to Matlab IGTLink Connection](https://discourse.slicer.org/t/slicer-to-matlab-igtlink-connection/30189)

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**Author:** [@LauraConnolly1](https://discourse.slicer.org/u/LauraConnolly1)\
**Replies:** 1\
**Last updated:** [June 23, 2023, 12:38am UTC](https://discourse.slicer.org/t/slicer-to-matlab-igtlink-connection/30189 "2023-06-23T00:38:05Z")

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Hi there! We’re trying to connect 3D Slicer to Matlab using a controller code written in 2018. I’m a bit confused about how to set up the server connection from 3D Slicer to Matlab in the Matlab Commander module. We cha…

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## [Open-Source Ultrasound Trainer using 3DSlicer](https://discourse.slicer.org/t/open-source-ultrasound-trainer-using-3dslicer/28685)

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**Author:** [@Ryan\_Morrison](https://discourse.slicer.org/u/Ryan_Morrison)\
**Replies:** 2\
**Last updated:** [March 30, 2023, 7:54pm UTC](https://discourse.slicer.org/t/open-source-ultrasound-trainer-using-3dslicer/28685 "2023-03-30T19:54:27Z")

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I wanted to thank Andras Lasso for his help during the development of an open-source ultrasound trainer (OSUT) for medical professionals learning ultrasound. The ultrasound trainer takes tracking data from many off-the-s…

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## [The voxel size in IGT Volume Reconstruction](https://discourse.slicer.org/t/the-voxel-size-in-igt-volume-reconstruction/28273)

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**Author:** [@LV52](https://discourse.slicer.org/u/LV52)\
**Replies:** 0\
**Last updated:** [March 10, 2023, 8:49am UTC](https://discourse.slicer.org/t/the-voxel-size-in-igt-volume-reconstruction/28273 "2023-03-10T08:49:30Z")

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I have used the openigtlink to transmit the ultrasound image and 3d position into 3d slicer. Then I uesd IGT Volume Reconstruction to reconstruct the 3d ultrasound volume. In the Image volume the voxel size(image spaci…

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## [Save IGTLink 3D coordinates](https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991)

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**Author:** [@Hugo\_Angulo](https://discourse.slicer.org/u/Hugo_Angulo)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 10:30pm UTC](https://discourse.slicer.org/t/save-igtlink-3d-coordinates/27991 "2023-02-22T22:30:25Z")

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Hi there, I am currently simulating that I receive some coordinates through the usage of the TrackerSim binary file that I found in an old page in the website. Now, I was able to mimic that this is a remote machine that…

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## [Plus Server error when connecting NDI Aurora tracker to Slicer](https://discourse.slicer.org/t/plus-server-error-when-connecting-ndi-aurora-tracker-to-slicer/27729)

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**Author:** [@sm-philips](https://discourse.slicer.org/u/sm-philips)\
**Replies:** 1\
**Last updated:** [February 9, 2023, 7:53pm UTC](https://discourse.slicer.org/t/plus-server-error-when-connecting-ndi-aurora-tracker-to-slicer/27729 "2023-02-09T19:53:37Z")

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Hi, I have been trying to connect a NDI Aurora tracker to Slicer. Initially I just want to visualize the points coming in from the tracker in 3D space. I have couple of issues I am running into. The Plus Server launch…

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## [How rotate images in a sequence?](https://discourse.slicer.org/t/how-rotate-images-in-a-sequence/26522)

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**Author:** [@sunshine](https://discourse.slicer.org/u/sunshine)\
**Replies:** 6\
**Last updated:** [December 3, 2022, 8:10pm UTC](https://discourse.slicer.org/t/how-rotate-images-in-a-sequence/26522 "2022-12-03T20:10:50Z")

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How to “anti-Transverse” for a sequence? Or, how to do inplane rotation for images in a sequence for 90 degree (not 3D rotation, but 2D in-plane rotation)? Hi everyone, I need help fixing a sequence of linear transform…

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