Pseudo vascular pattern generation device and method of generating pseudo vascular pattern
In a pseudo vascular pattern generation device 10 , a processor 11 generates a first image in which white noise has been added to a gray image, generates a second image in which the white noise included in the first image has been diffused, generates a third image in which a blood vessel enhancement filter has been applied to the second image, generates a fourth image in which a region of interest has been set to the third image, and generates a fifth image including the pseudo vascular pattern based on the fourth image.
1 . A pseudo vascular pattern generation device comprising:
a processor that
generates a first image in which white noise has been added to all of pixels included in a single gray image among a plurality of gray images under a same random number seed,
generates a second image in which the white noise included in the first image has been diffused by applying a Gaussian filter to the first image,
generates a third image in which a Frangi filter has been applied to the second image,
generates a fourth image in which a region of interest has been set to the third image, and
generates a fifth image including a pseudo vascular pattern by performing geometric transformation on the fourth image.
2 . The pseudo vascular pattern generation device according to claim 1 , wherein the processor adds the white noise to the single gray image based on the same random number seed for all of pixels included in the single gray image and a random number seed that is different for each other gray image of the plurality of gray images.
3 . The pseudo vascular pattern generation device according to claim 1 , wherein the fifth image is among a plurality of mutually different fifth images, and the processor generates the plurality of mutually different fifth images by performing the geometric transformation on the fourth image by using a plurality of parameters that are different from each other under the same random number seed.
4 . A method of generating a pseudo vascular pattern comprising:
generating a first image in which white noise has been added to all of pixels included in a single gray image under a same random number seed;
generating a second image in which the white noise included in the first image has been diffused by applying a Gaussian filter to the first image;
generating a third image in which a Frangi filter has been applied to the second image;
generating a fourth image in which a region of interest has been set to the third image; and
generating a fifth image including the pseudo vascular pattern by performing geometric transformation on the fourth image.