Patent ID: 11954824
Assignee: ACER MEDICAL INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. An image processing apparatus, comprising:
a storage, storing a code; and
a processor, coupled to the storage, loading and executing the code to be configured to:
obtain a region of interest from a fundoscopic image to generate a first image, wherein the region of interest is focused on an eyeball in the fundoscopic image;
perform a smoothing process on the first image to generate a second image;
compare, for each pixel, a distance between value differences and a reference value, wherein the value differences are a first difference between a red channel value of the pixel and a neighboring pixel, a second difference between a green channel value of the pixel and the neighboring pixel, and a third difference between a blue channel value of the pixel and the neighboring pixel in the second image; and
increase the value differences according to the distance to generate a third image in which at least one of the red channel value, the green channel value, and blue channel value of pixels of the second image is changed, comprising:
in response to the distance increasing, increasing a magnitude of an increase in the value differences;
in response to the distance reducing, reducing the magnitude of the increase in the value differences;
wherein the third image is used in pre-processing in at least one of a training phase and inference phase of a detection model based on a machine learning algorithm.