Digital pathology is an emerging field which deals mainly with microscopy images that are derived from patient biopsies. Because of the high resolution, most of these whole slide images (WSI) have a large size, typically exceeding a gigabyte (Gb). Therefore, typical image analysis methods cannot efficiently handle them.
source https://www.lifetechnology.com/blogs/life-technology-technology-news/a-novel-ai-algorithm-for-digital-pathology-analysis