Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Simultaneous grayscale and geometric registration of images










Image Number 6 for United States Patent #7664302.

Simultaneous grayscale and geometric registration of images, such as mammograms, facilitates temporal comparison and enhances the speed and reliability of computer aided diagnosis (CAD) detection of medical abnormalities. The method generally includes optimizing a merit function, e.g., sum of squared errors, containing parameters associated with a transformation function for simultaneous geometric and grayscale registering of the images, the optimizing of the merit function being performed by determining optimal values of the parameters using data in the images and registering one image to the other by applying the geometric and grayscale transformation function using the optimal values of the parameters. The optimizing may be performed iteratively from coarse to fine resolutions using a modified Levenberg-Marquardt method for optimizing nonlinear parameters with linear regression for optimizing linear parameters. A final iteration may be performed after removing pixel value pairs from the images that correspond to outliers of a joint pixel value histogram.








 
 
  Recently Added Patents
Incrementally increasing deployment of gateways
Identifying conceptually related terms in search query results
Dental plier
Sending notification of event
System and method for leveraging independent innovation in entertainment content and graphics hardware
Method of modified facies proportions upon history matching of a geological model
Prevention and treatment of osteoarthritis
  Randomly Featured Patents
Active common mode feedback for unbalanced input and feedback signals and methods thereof
Tamper evident seal for connector type container orifices
Craft kit construction component-top hat for a toy figure
Work holding jig
Apparatus for mixing liquids
Exercise mat and punching assembly combination
Regeneration process of an aromatization catalyst containing a Group VIII metal on a zeolite
Pixel structure and pixel structure of organic light emitting device
Arrangement for adjusting the damping force of a shock absorber
Disc-position display for auto disc changer