| 摘要 |
An ultrasonic observation apparatus includes: a first conversion unit configured to convert an ultrasonic signal, which is a time domain signal, received by a transmitting and receiving unit, into a frequency domain signal; a regression analysis unit configured to calculate a regression expression for the frequency domain signal converted by the first conversion unit; an attenuation correction coefficient calculation unit configured to calculate an attenuation correction coefficient based on first-order coefficients in the regression expressions at two points or more having different reception depths; an attenuation correction processing unit configured to perform attenuation correction processing on the frequency domain signal based on the attenuation correction coefficient calculated by the attenuation correction coefficient calculation unit; a second conversion unit configured to convert the frequency domain signal, on which the attenuation correction processing has been performed by the attenuation correction processing unit, into a second time domain signal; and an image data generation unit configured to generate ultrasonic image data based on the second time domain signal. |
