| 摘要 |
Method for tracking objects in a target area of a moving organ from sequences of consecutive image frames of such organ, which images are timely separated by a certain time interval, the method comprising the following steps:
a) identifying, in at least a reference image of a sequence, at least a first feature and at least a second feature;
b) tracking the position of such first and second features in other images of the same or another sequence in order to learn motion patterns of such features;
c) determining a dynamic geometric relation between such first and second feature;
d) determining the position of the first feature in the same or different image frames of the same or different image sequence by using the position of the second feature and the dynamic geometric relation as determined in step c) when such first feature is not visible. A corresponding apparatus and computer program are also disclosed. |
