The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2009
Filed:
Oct. 06, 2005
Zhuowen Tu, San Diego, CA (US);
Xiang Zhou, Exton, PA (US);
Adrian Barbu, Plainsboro, NJ (US);
Luca Bogoni, Philadelphia, PA (US);
Dorin Comaniciu, Princeton Jct., NJ (US);
Zhuowen Tu, San Diego, CA (US);
Xiang Zhou, Exton, PA (US);
Adrian Barbu, Plainsboro, NJ (US);
Luca Bogoni, Philadelphia, PA (US);
Dorin Comaniciu, Princeton Jct., NJ (US);
Siemens Medical Solutions USA, Inc,, Malvern, PA (US);
Abstract
A method for detecting target objects in a three dimensional (3D) image volume of an anatomical structure is disclosed. A set of candidate locations in the image volume are obtained. For each candidate location, sub-volumes of at least two different scales are cropped out. Each sub-volume comprises a plurality of voxels. For each of the sub-volumes, each sub-volume is rotated in at least two different orientations. A shape classifier is applied to each sub-volume. If the voxels in the sub-volume pass the shape classifier, a gradient direction is computed for the voxels. If the gradient direction for the voxels is one of a predefined orientation, a probability classifier is applied to the voxels. A probability measure computed by the probability classifier as a confidence measure is used for the sub-volume. If the confidence measure is above a predetermined threshold value, the sub-volume is determined to contain the target object.