Ryohei Yabe

Segmentation of blood cell image captured by single CCD color TV camera

This paper discusses the classification of blood cell images. The image input method using the single CCD color TV camera and the special color compensation filter, as well as the method of region segmentation for the blood cell images, are described. The following elaborations are made in the image input stage to separate the red blood cell and the white blood cell images in a stable way using optical means. (1) The bluish green light near 450 ∼ 500 nm is cut off from the white light. (2) The accompanying light imbalance between the blue light and the green/red light is compensated by the special color compensation filter. In the (region) segmentation of the blood cell images, a logical operation is developed in which the region of the red blood cell is extracted based on the binary images obtained by the threshold processing of the subtracted image. Using those methods, 59 blood cell images are processed and a satisfactory segmentation result is obtained.