Image Optimization 5-43
Mode definition
Smart 3D
The operator manually moves the probe to change its position/angle when
performing the scanning. After the scanning, the system carries out image
rendering automatically, and then displays a frame of 3D image.
Static 3D
Posit the probe at a fixed place; the probe automatically performs the scanning.
After the scanning is completed, the system carries out image rendering, and
then displays a frame of 3D image.
4D
The probe performs the scanning automatically. During the scanning, the system renders
3D images in real time, and all 3D images are displayed in real time.
Terms
Volume: a three-dimensional content.
Volume data: the image data set of a 3D object rendered from 2D image
sequence.
3D image: the image displayed to represent the volume data.
View point: a position for viewing volume data/3D image.
Section image: tangent planes of the 3D image obtained by algorithm. As shown
in the figure below, XY-paralleled plane is C-section, XZ-paralleled plane is
B-section, and YZ-paralleled plane is A-section. The probe is moved along the
X-axis.
ROI (Region of Interest): a volume box used to determine the height and width of
scanning volume.
VOI (Volume of Interest): a volume box used to determine the area of a sectional
plane for 3D imaging.
ROI and VOI
Before image acquisition after the system enters 3D/4D imaging, a B image with ROI
displays on the screen. A line (shown in the following figure) that shows the cut plane
position of VOI is inside ROI.
Z
View point
X
Y
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