Device, method, and program for visualizing network of blood vessels of skin

A blood vessel visualizing method for visualizing a network of blood vessels of skin, the method comprising:

• a tomographic image acquiring step of acquiring a plurality of tomographic images of a skin site by using optical coherence tomography;
• a first correlation acquiring step of acquiring autocorrelation in epidermis corresponding regions of the acquired tomographic images;
• a second correlation acquiring step of excluding combinations of tomographic images with the acquired autocorrelation corresponding to predetermined low autocorrelation, and then acquiring autocorrelation in dermis corresponding regions;
• a computing step of calculating a network of blood vessels on the basis of the autocorrelation in the dermis corresponding regions;
• and
• a displaying step of displaying the calculated network of blood vessels.

A blood vessel visualizing method for visualizing a network of blood vessels of skin, the method comprising:

• a tomographic image acquiring step of acquiring tomographic images of the skin by using optical coherence tomography;
• a computation specifying step of determining tomographic images in which influence of noise due to body motion exceeds a reference value among the acquired tomographic images, and excluding the determined tomographic images from computation;
• a computing step of calculating a network of blood vessels on the basis of tomographic images subject to computation;
• and
• a displaying step of displaying the calculated network of blood vessels.

A non-transitory computer readable medium comprising a program for causing a computer to implement:

• a function of computing first autocorrelation values of a plurality of tomographic images of a skin site acquired by using optical coherence tomography, a first autocorrelation value being an autocorrelation value in epidermis corresponding regions;
• a function of excluding combinations of tomographic images with the first autocorrelation values corresponding to predetermined low autocorrelation, and then computing second autocorrelation values, the second autocorrelation values being autocorrelation values in dermis corresponding regions;
• a function of calculating a network of blood vessels on the basis of the second autocorrelation values;
• and a function of outputting signals to display the calculated network of blood vessels.