IMAGE INTERPOLATION APPARATUS

摘要

PURPOSE:To prevent deterioration in the quality of picture by performing interpolation at the writing into or reading from a digital scan converter. CONSTITUTION:In a sector scan ultrasonic diagnosing equipment having a digital scan converter, an ultrasound echo signal returned from a body is inputted into an A/D converter 1 after amplifier and detected to make a digital sample data. The data is written into a frame memory 3 through a lateral direction writing interpolation device 2. The lateral direction writing interpolation device 2 is a circuit which is adapted to perform a writing on real time into a frame memory 3 interolating several subscan lines between original scan lines and a data to be interpolated is done so from those at the same depth of the original scan line. This interpolation may be performed at the reading from or writing into the frame memory and at the time of both writing into the reading from the frame memory.