| 摘要 |
An apparatus has an ultrasonic probe (11), an ultrasonic flaw detecting apparatus (12), a B scope image processing apparatus (13), and a display apparatus (14). Each time a reflection echo is detected, the position (x, y) on a B scope image of the detected reflection echo is calculated. When a condition such that a distance between the position (x, y) on the B scope image of the detected reflection echo and the position (xi, yi) on the B scope image of the reflection echo to which the allocation number (i) which had already been used was finally allocated lies within a predetermined range is satisfied, the allocation number (i) which has already been used is allocated to the detected reflection echo. When the allocation number (i) which has already been used is not allocated to the detected reflection echo in accordance with the above condition, an unused allocation number (n) is allocated to the detected reflection echo. <IMAGE>
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