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We present an improvement of the classical marker-controlled watershed approach in the direction of a better exploitation of user-defined markers. The combined action of a partial flooding and paint drops falling downwards on the gray value relief from marker locations, leads to a robust and meaningful identification of the candidate basins, which is a prerequisite for an accurate segmentation. This...
In this work we propose a fully automatic system for bone age evaluation, according to the Tanner and Whitehouse method (TW2), based on the integration between EMROI and CROI analysis, which ensures accurate bone age assessment for the entire age range (0-10). For both approaches novel segmentation techniques will be proposed. In detail, for the CROI analysis the bones extraction has been carried...
This work presents an efficient interactive segmentation system for volumetric data-sets based on advanced 3D morphological analyses and an interaction paradigm that allows a good match with user intentions. This system has been designed to produce accurate results under the complete control of the user, to minimize the interaction time and to address a generality of 3D segmentation tasks. The system...
For complex medical image segmentation tasks which also require high accuracy, prior information must usually be generated in order to initialize and confine the action of the computational tools. This can be obtained by task oriented specialization layers operating within automatic segmentation techniques or by advanced exploitation of user- data interaction, in this case the segmentation technique...
The aim of this work is to develop an automated system for skeletal bone age evaluation. Skeletal bone age assessment is a common and time-consuming task in pediatric radiology. We describe a system that implements the EMROI (epiphyseal/metaphyseal region of interest) extraction method by image processing techniques. Each EMROI is localized on the image, by using an analysis of its gray levels. Then...
This paper deals with the development of an innovative approach that allows performing non invasive measurements of jaw movements with application to the field of gnatography. An experimental apparatus has been also realized that includes both hardware and software sections. The main characterizing feature of the measurement system proposed here consist in the complete absence of any invasive device...
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