Abstract
We developed a new physical evaluation system for medical displays using a high-resolution single-lens reflex type digital camera. This system was designed for easy and precise measurements of the modulation transfer function, the luminance response and the noise power spectrum of the liquid crystal display and the cathode-ray tube display. Each of the measurements was achieved by one-time photographing of a test pattern with the optimized data processing. Simple composition (a digital camera and a computer only) was very suitable for measurement in medical settings. Actual measurements were performed to three medical displays, and the high reproducibility and easy operability of this system were demonstrated.