Haptic guided seeding of MRA images for semi-automatic segmentation
We investigate how stereo graphics and haptics can be combined to facilitate the seeding procedure in semi-automatic segmentation of magnetic resonance angiography (MRA) images. Real-time volume rendering using maximum intensity projections (MIPs) has been implemented together with a haptic renderin...
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Published in | 2004 2nd IEEE International Symposium on Biomedical Imaging: Nano to Macro (IEEE Cat No. 04EX821) pp. 288 - 291 Vol. 1 |
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Main Authors | , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
2004
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Subjects | |
Online Access | Get full text |
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Summary: | We investigate how stereo graphics and haptics can be combined to facilitate the seeding procedure in semi-automatic segmentation of magnetic resonance angiography (MRA) images. Real-time volume rendering using maximum intensity projections (MIPs) has been implemented together with a haptic rendering method that provides force feedback based on local gradients and intensity values. This combination allows a user to trace vessels in the image, and to place seed-points directly in three-dimensional data set. Seed-regions are propagated from the seed-points according to an algorithm that favors bright voxels. An experienced user have tested the interface on a whole-body MRA image with promising results. |
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ISBN: | 0780383885 9780780383883 |
DOI: | 10.1109/ISBI.2004.1398531 |