| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve readability of characters and reproduction of color by shortening the rise time of character and color parts and clarifying profiles for solving a problem that, when reproducing an ultrasonic image recorded in a VCR (Video Cassette Recorder), information such as characters is indistinct in an image deteriorated with high frequency components in ultrasonic diagnostic equipment. <P>SOLUTION: When a value as a result of comparing image data, which are inputted from the outside and adjoin with each other in an arbitrary horizontal direction of image signals converted into digital data, between an absolute value of differential data calculated by a subtractor 12 and an arbitrary threshold by a comparator 13 becomes large, this ultrasonic diagnostic equipment estimates it as the occurrence of frequency deterioration. If the adjacent data sequentially show a change such as the same increase or decrease, this equipment counts the number of data under the sequential change by a change succession counter 14 and substitutes the number of data for the image data value in the last change by an image data rewriting means 16. <P>COPYRIGHT: (C)2007,JPO&INPIT |
