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A haptic interaction technique for volume images based on gradient diffusion
Uppsala universitet, Fakultetsövergripande enheter, Centrum för bildanalys.
Uppsala universitet, Fakultetsövergripande enheter, Centrum för bildanalys.
2005 (engelsk)Inngår i: World Haptics Conference, 2005, s. 336-341Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The manual step in semi-automatic segmentation of medical volume images typically involves initialization procedures such as placement of seed-points or positioning of surface models inside the object to be segmented. The initialization is then used as input to an automatic algorithm. We investigate how such initialization tasks can be facilitated by using haptic feedback. This paper describes a haptic interaction technique based on gradient vector flow (GVF) that allows a user to feel object boundaries while still being centered inside the object. Our method is not limited to elongated structures, which is a common restriction for other approaches. Initial tests of the method shows encouraging results for differently shaped objects.

sted, utgiver, år, opplag, sider
2005. s. 336-341
Identifikatorer
URN: urn:nbn:se:uu:diva-74970ISBN: 0-7695-2310-2 (tryckt)OAI: oai:DiVA.org:uu-74970DiVA, id: diva2:102880
Tilgjengelig fra: 2005-12-20 Laget: 2005-12-20

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Vidholm, ErikNyström, Ingela

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