Fukuda Denshi Co., Ltd.

Fukuda Denshi Kabushiki Kaisha

Toshihiko Yamagata

Tamon Mizoguchi

Kiyoshi Takeuchi

Shinichi Kawamura

Masami Uchibori

Mitsuya Maruyama

Makoto Magara

Shigekazu Nagashima

There is provided a vital information processing apparatus capable of effectively reducing small-amplitude noise and isolated noise without degrading an abrupt change portion in a processing target vital signal. A vital signal detected by a vital signal detector (10) is input from a vital signal input unit (20). A sync signal extractor (25) extracts, e.g., the QRS wave form of an electrocardiogram signal of the input signal and outputs the extracted wave as a sync signal (26). A preprocessor (30) performs predetermined preprocessing for the processing target vital signal, e.g., a K sound signal and outputs the preprocessed signal to median filters (40, 45). Each of the median filters (40, 45) filters the Korotkoff sounds using the QRS signal (26) as the index value and outputs the resultant signal.

Vital information processing apparatus

A real-time endoscopic image processing system for removing a net pattern from an image has an image processing section (1000) which includes a first controlling circuit (400) for receiving a video signal (S2) from one of a video signal S1 output from a television camera (14) and a VTR, or the like. A horizontal sample-hold circuit (500) generates a horizontal peak sample-hold signal (S5) by continuously sampling and holding the peak value of a sinusoidal video signal voltage from the video signal output (S2) which corresponds to the bright and dark portions of an image. A second controlling circuit (600) delays the horizontal peak sample-hold signal (S5) and compares a delay signal (S5D) with the horizontal peak sample-hold signal (S5) to detect the peak value of the original voltage which varies in a sinusoidal form with respect to the vertical scanning direction, and outputting a vertical peak sampling controlling signal (S6). A vertical sample-hold circuit (700) receives the vertical peak sampling controlling signal (S6) and the delay signal (S 5D) and outputs a continuous vertical peak sample-hold signal (S7) according to the vertical peak sampling controlling signal (S6). The vertical peak sample-hold signal (S7) output from the image processing section (1000) is displayed on a monitor.

Real-time endoscopic image processing system

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Tokyo, Japan

Toshihiko Yamagata