Patent ID: 7907764

Claim:
An apparatus for motion analysis in an internal body, the apparatus comprising: tomographic image acquisition means for acquiring a tomographic image of a subject; point specification means for specifying a plurality of arbitrary points on the tomographic image of the subject obtained by the tomographic image acquisition means; viewing point conversion means for (i) selecting at least one of the plurality of arbitrary points specified by the point specification means as an observation point, and (ii) converting a motion of the observation point to a motion obtained by using one of the plurality of arbitrary points other than the observation point as a viewing point; and data output means for outputting data obtained by the viewing point conversion means, wherein the observation point is one of a plurality of observation points, and wherein the data output means forms a multi-node link by connecting the plurality of observation points after conversion to each other by line segments, and outputs data on a motion of the multi-node link.