Ultrasonic diagnostic device, image processing device, and image processing method

An image processing device, comprising:

• processing circuitry configured to
• acquire volume data collected by an ultrasonic probe configured to collect the volume data by three-dimensionally scanning a subject with ultrasonic waves;
• generate a first rendering image based on the volume data by using a first rendering method, the first rendering method including rendering the volume data by global illumination;
• generate a second rendering image based on the volume data by using a second rendering method that is different from the first rendering method;
• generate a superimposed image in which at least a part of the first rendering image and a part of the second rendering image are superimposed on each other;
• cause a display to display the superimposed image,
• determine whether the superimposed image is suitable for observation based on a luminance value of the superimposed image, and
• adjust so as to increase a superimposition ratio of the first rendering image or the second rendering image in the superimposed image, when it is determined that the superimposed image is not suitable for observation.

An image processing method, comprising:

• acquiring volume data collected by an ultrasonic probe configured to collect volume data by three-dimensionally scanning a subject with ultrasonic waves;
• generating a first rendering image based on the volume data by using a first rendering method, the first rendering method including rendering the volume data by global illumination;
• generating a second rendering image based on the volume data by using a second rendering method that is different from the first rendering method;
• generating a superimposed image in which at least a part of the first rendering image and a part of the second rendering image are superimposed on each other;
• and
• causing a display to display the superimposed image,
• determining whether the superimposed image is suitable for observation based on a luminance value of the superimposed image, and
• adjusting so as to increase a superimposition ratio of the first rendering image or the second rendering image in the superimposed image when it is determined that the superimposed image is not suitable for observation.