Recognition of echocardiogram by dynamic programming matching method

Abstract

AbstractThis paper applies the dynamic programming (DP) matching to the border extraction from the dynamic echocardiogram of the heart along the short axis. The method is based on the DP matching for the two‐dimensional static image. The sampled values are stabilized by the integration by time, and the border features are emphasized by the differentiation in time. The matching is made using the spatial derivative intensity, the spatial derivative direction, and the time derivative intensity. The use of the continuity constraint along the time axis in the matching is discussed. Utilizing the property of the object that the motion is periodic within a certain range, the point of motion is determined from the sum of the time derivative over a pulsatile period, and the result is utilized in the matching constraint.