Abstract: Method of estimation and segmentation of the volume of a three-dimensional object in medical imagery, in which: one defines a given number of base points constituting a first three-dimensional shape defined by facets; each facet of the first shape being defined by three segments, the segments are divided by defining second order points adapted to the contour of the object, so as to constitute a second three-dimensional shape closer to the contour of the object than the first shape; each segment is iteratively divided into subsegments adjusted by defining third order points adapted to the contour of the object, so as to constitute a third three-dimensional shape closer to the contour of the object than the second shape; then, the volume of the third three-dimensional shape is calculated.

Abstract: A method of fusion of a first digital radiographic image obtained as a result of scanning with a second digital radiographic image obtained by magnetic resonance imaging (MRI). A CT interval of gray levels is selected first in the scanner image. Each pixel of the scanner image having a gray level lying within the CT interval is then replaced by a pixel obtained by digital processing of the pixel of the same coordinates as the MRI image. The final image corresponds to the scanner image in which the pixels of gray levels lying within the CT interval have undergone the digital processing.

Abstract: Method of estimation and segmentation of the volume of a three-dimensional object in medical imagery, in which: