SDTB dataset

The proposed SDTB dataset is collected from microscopic testicular tissue sections of 15 patients diagnosed with azoospermia. It simulates the process of selecting high-quality sperm in a testicular puncture scenario for further infertility diagnosis and treatment. Specifically, a testicular puncture is performed on these patients, followed by cleansing and shredding of the tubule tissue. The samples are then examined under a Nikon ECLIPSS Ti microscope at 200× magnification. The annotations of sperm are initially conducted by one physician and subsequently reviewed and adjusted by another physician. From each patient, 45 to 148 images with 193 to 755 sperm instances are collected. Each image is 1320 × 1080 pixels, which we further resize and pad to 640 × 640 pixels.