Processing laser speckle images
AssigneeKoninklijke Philips N.V.
InventorsTobias WISSEL, Willem VERKRUIJSSE
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Abstract
A mechanism for processing one or more laser speckle images. A spatial frequency transform is used to transform the one or more laser speckle images into spatial frequency data. The spatial frequency data is used to define a plurality of blood velocity indicators, which each indicate an amount of blood moving at a particular velocity within an illuminated region of interest.
Claims15
A computer-implemented method for processing one or more laser speckle images, each laser speckle image being an image containing a speckle pattern produced by the reflection of light illuminating a region of interest of a subject, the computer-implemented method comprising:
- processing the one or more laser speckle images using a spatial frequency transform, to thereby produce spatial frequency data;
- and
- defining, using the spatial frequency data, a plurality of blood velocity indicators, each blood velocity indicator indicating or representing an amount of blood moving at a respective, different blood velocity within the region of interest.
The computer-implemented method of 1, wherein the one or more laser speckle images comprises a plurality of laser speckle images having different exposure times.
A processing system processing one or more laser speckle images, each laser speckle image being an image containing a speckle pattern produced by the reflection of light illuminating a region of interest of a subject, the processing system being configured to:
- process the one or more laser speckle images using a spatial frequency transform, to thereby produce spatial frequency data;
- and
- define, using the spatial frequency data, a plurality of blood velocity indicators, each blood velocity indicator indicating or representing an amount of blood moving at a respective, different blood velocity within the region of interest.
Dependencies are inferred from the claim text.