Signal processing method and apparatus
AssigneeMirada Medical Limited
InventorsTimor Kadir, John Michael Brady
Life of this patent
Estimating the term…
Abstract
A signal processing method that includes inputting sample values of a signal and considering the signal to have a plurality of portions. For each portion, a predetermined function is fitted to the sample values of that portion of the signal by calculating values of coefficients for that predetermined function. At least one statistical information function is evaluated for the signal to determine statistical information about the signal and the calculated coefficient values are used so that the form of the statistical information function has been determined for the predetermined function used to fit the signal portion and further includes using the statistical information obtained about the signal to process the signal.
Claims21
An image processing method comprising:
- storing one or more images in a memory;
- obtaining, from the memory, by an analysis module, sample values of a signal representative of the one or more images, wherein the signal comprises a plurality of portions and for each portion:
- fitting a predetermined function to the sample values of a portion of the signal by calculating values of coefficients for the predetermined function, thereby generating an approximation of the portion of the signal;
- evaluating at least one statistical information function in the analysis module for the portion of the signal to determine statistical information about the portion of the signal, using the calculated coefficient values, wherein the statistical information characterizes the portion of the signal and the at least one statistical information function has been determined for the predetermined function used to fit the portion of the signal;
- using the statistical information obtained about the portion of the signal as an input to a processing module to process the portion of the signal or another portion of the signal;
- and
- outputting, after completion of processing one or more portions, an image to a display based on the processing performed by the processing module.
An image processing apparatus comprising:
- an input that receives sample values of a signal representative of one or more images;
- an analysis module configured for analyzing portions of the signal, and for each portion of the signal:
- calculating values of coefficients for fitting a predetermined function to the sample values of a portion of the signal, wherein the coefficients and the predetermined function approximate the portion of the signal;
- evaluating at least one statistical information function for the portion of the signal to determine statistical information about the portion of the signal, using the calculated coefficient values, wherein the statistical information characterizes the portion of the signal and the at least one statistical information function has been determined for the predetermined function used to fit the portion of the signal;
- a processing module that uses the statistical information obtained about the portion of the signal by the analysis module to process the portion of the signal or another portion of the signal;
- and
- an output that outputs an image based the processing performed by the processing module.
A computer program embodied as computer-executable instructions stored on a non-transitory computer-readable medium for image processing, the program comprising instructions for:
- storing one or more images in a memory;
- obtaining, from the memory, by an analysis module, sample values of a signal representative of the one or more images, wherein the signal comprises a plurality of portions and for each portion:
- fitting a predetermined function to the sample values of a portion of the signal by calculating values of coefficients for the predetermined function, thereby generating an approximation of the portion of the signal;
- evaluating at least one statistical information function in the analysis module for the portion of the signal to determine statistical information about the portion of the signal, using the calculated coefficient values, wherein the statistical information characterizes the portion of the signal and the at least one statistical information function has been determined for the predetermined function used to fit the portion of the signal;
- using the statistical information obtained about the portion of the signal as an input to a processing module to process the portion of the signal or another portion of the signal;
- and
- outputting, after completion of processing one or more portions, an image to a display based on the processing performed by the processing module.
Dependencies are inferred from the claim text.