Method of full-color optical coherence tomography
AssigneeUniversity of South Florida
InventorsMyung K. Kim, Lingfeng Yu
Life of this patent
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Abstract
Two-dimensional and three-dimensional optical coherence tomography is obtained by differential imaging of full-frame interference images using a white light source. Full-color tomographic imaging is also possible by processing the three-color channels of the interference images. A technique is described to obtain two-dimensional OCT images with full natural color representation. In a particular embodiment, the interference image is acquired using a color camera and the three-color channels are processed separately, recomposing the final image. In an additional embodiment, the interference images are acquired using separate red, blue and green light sources and the three color channels are combined to recompose the final image.
Claims20
A method of generating an object image by optical coherence tomography with natural color representation, the method comprising the steps of:
- performing optical coherence tomography imaging on the object illuminated with a red LED resulting in a first image;
- performing optical coherence tomography imaging on the object illuminated with a blue LED resulting in a second image;
- performing optical coherence tomography imaging on the object illuminated with a green LED resulting in a third image;
- and
- combining the first, second and third images to generate a fourth image having full natural color representation.
A method of generating an object image by optical coherence tomography with natural color representation, the method comprising the steps of:
- illuminating an object of interest with a white light source;
- illuminating the object of interest with a reference wave;
- performing phase-shift interference imaging on the object of interest resulting in at least two color image frames acquired at predetermined wavelength intervals of the reference wave;
- separating the color image frames resulting in at least two red image frames, at least two green image frames and at least two blue image frames;
- extracting a red image from the at least two red image frames;
- extracting a blue image from the at least two blue image frames;
- extracting a green image from the at least two green image frames;
- combining the red image, blue image and green image to generate an image having full natural color representation.
Dependencies are inferred from the claim text.