Alpha-masked rst image registration
AssigneeCanon Kabushiki Kaisha
InventorTuan Quang Pham
Life of this patent
Estimating the term…
Abstract
A method (500) of determining rotation and scale transformation parameters is disclosed. The method (500) determines a plurality of weight values associated with one or more parts of at least one of a first and second image (e.g., 154. 155). A representation of each of the first and second images (154. 155) is formed using the weight values, the representation being substantially invariant to translation of the first and second images (154. 155). Rotation and scale transformation parameters relating the first and second images (154. 155) are determined based on the representation of each of the first and second images (154. 155). The rotation and scale transformation parameters are stored.
Claims15
A method of determining rotation and scale transformation parameters, said method comprising the steps of:
- determining a plurality of weight values associated with one or more parts of at least one of a first and second image;
- forming a representation of each of said first and second images using said weight values, the representation being substantially invariant to translation of said first and second images;
- determining rotation and scale transformation parameters relating said first and second images based on said representation of each of said first and second images;
- and
- storing the rotation and scale transformation parameters.
An apparatus for determining rotation and scale transformation parameters, said apparatus comprising:
- weight value determining module for determining a plurality of weight values associated with one or more parts of at least one of a first and second image;
- representation forming module for forming a representation of each of said first and second images using said weight values, the representation being substantially invariant to translation of said first and second images;
- parameter determining module for determining rotation and scale parameters relating said first and second images based on said representation of each of said first and second images;
- and
- memory module for storing the rotation and scale transformation parameters.
A computer readable medium, having a program recorded on the medium, where the program is configured to make a computer execute a method of determining rotation and scale transformation parameters, said program comprising:
- code for determining a plurality of weight values associated with one or more parts of at least one of a first and second image;
- code for forming a representation of each of said first and second images using said weight values, the representation being substantially invariant to translation of said first and second images;
- code for determining rotation and scale transformation parameters relating said first and second images based on said representation of each of said first and second images;
- and
- code for storing the rotation and scale transformation parameters.
A system for determining rotation and scale transformation parameters, said system comprising:
- a memory for storing data and a computer program;
- and
- a processor coupled to said memory executing said computer program, said computer program comprising instructions for:
- determining a plurality of weight values associated with one or more parts of at least one of a first and second image;
- forming a representation of each of said first and second images using said weight values, the representation being substantially invariant to translation of said first and second images;
- determining rotation and scale transformation parameters relating said first and second images based on said representation of each of said first and second images;
- and
- storing the rotation and scale transformation parameters.
Dependencies are inferred from the claim text.