A newly devised instrument is described which permits recording of cardiovascular sound and electrocardiogram during exercise in man. It consists of a handy magnetic casette tape recorder and a modulator. This assembly is connected to a phonocardiographic microphone which is attached to the thorax with sticky tape. The voice of patient is also recordable, if necessary. Biological transducer wil...

In this paper, we propose an efficient scene change detection method for personal video recorder to provide users with several convenient functionalities such as the browsing, fast forward and skip-play of recorded videos. Since most of the current available PVRs have low-powered CPUs, the scene change detector should not be computationally expensive. We implement the scene change detection alg...

A volume angiography system for on-line computation of left ventricular angiograms has been developed utilizing a video disc recorder, a light-pen unit, and a digital computer. The video disc recorder allows for immediate replay and stop-motion of ventricular angiograms on a video monitor. The light-pen is used by a technician/physician operator to define the margins of the ventricular chamber ...