METHOD, APPARATUS AND COMPUTER-READABLE MEDIUM ESTIMATING ENERGY RESPONSE FUNCTION OF ENERGY RESOLVING X-RAY DETECTOR

摘要

Disclosed are an energy response estimating apparatus, a method and computer-readable medium thereof that estimates an energy response function determined by a substance constituting a detector and physical parameters, and corrects multi-energy image information by using the estimated energy response function. The energy response estimating apparatus includes an emitting unit to emit multiple polychromatic X-rays having different energy levels to an object, a sensing unit to calculate a spectrum measurement value of a detector by counting photons from the multiple polychromatic X-rays that pass through the object, and an estimating unit to estimate an energy response function based on the calculated spectrum measurement value of the detector.