Apparatus and method for displaying sectional planes of target object utilizing 3-dimensional ultrasound data
AssigneeMedison Co., Ltd.
InventorEui Chul Kwon
Life of this patent
Estimating the term…
Abstract
An apparatus for displaying sectional planes of a target object utilizing 3 dimensional (3D) ultrasound data. The apparatus is capable of scanning the target object in real time by improving a scan conversion speed and virtually scans the target object by storing previously acquired 3D data. The apparatus, which displays a target object by using 3D ultrasound data, includes 1) a scan conversion unit for performing scan conversion to convert Cartesian coordinates for display on a screen of a display device to conical coordinates of 3D data, and 2) a rendering unit for rendering multiple sectional plane images, based on the 3D scan conversion, parallel with a reference sectional plane.
Claims13
An apparatus for displaying a target object by using 3-dimensional (3D) ultrasound data, comprising:
- a geometric look-up table storage unit configured to store indices of 3D data matched with Cartesian coordinates of a screen of a display device and resulting values of operations to convert the Cartesian coordinates to conical coordinates;
- a determination unit configured to receive information of a reference sectional plane from an interface device, receive the conical coordinates of the 3D data from a probe or a 3D data storage device, and determine whether a current display region displaying an image based on the 3D data of the target object is changed from a display region displaying a previous image on the screen;
- a display region calculation unit configured to calculate the display region to display the image on the screen when the display region is changed;
- a scan conversion unit configured to retrieve the indices and the operation resulting values stored in the geometric look-up table storage unit to perform scan conversion to convert Cartesian coordinates for display on the screen of the display device to conical coordinates of 3D data;
- and
- a rendering unit configured to render multiple sectional plane images, based on the scan-converted 3D data, parallel with the reference sectional plane.
A method for displaying a target object by using 3D ultrasound data, comprising the steps of:
- storing indices of 3D data matched with Cartesian coordinates of a screen in a display device to display a 3D image of the target object and resulting values of operations to convert Cartesian coordinates to conical coordinates in a geometric look-up table storage unit;
- receiving information of a reference sectional plane from an interface device, receiving 3D data of the target object from a probe or a 3D data storage device, and determining whether a current display region displaying an ultrasound image based on the 3D data of the target object is different from a previous display region on the screen;
- calculating the display region to display the image on the screen when the display region is changed;
- scan-converting 3D data of the target object by retrieving the resulting values from the geometric look-up table storage unit in order to convert the Cartesian coordinates corresponding to the calculated display region to the conical coordinates of the 3D data of the target object;
- and
- rendering multiple sectional plane images based on the scan-converted 3D data, wherein the multiple sectional plane images are parallel with a reference sectional plane in a vertical direction to the reference sectional plane.
A method for displaying slice images of a target object by using 3D ultrasound data, comprising the steps of:
- setting a reference sectional plane of the target object to be displayed;
- acquiring the 3D ultrasound data of the target object;
- generating and displaying the reference sectional plane image based on the 3D ultrasound data;
- drawing a line on the displayed reference sectional plane for displaying a desired sectional plane;
- and
- generating and displaying the desired sectional plane perpendicular to the reference sectional plane taken along the line by using a selective anti-aliasing method for retrieving an aliased portion by using a slope of the drawn line and for performing the anti-aliasing method only for the aliased portion.
Dependencies are inferred from the claim text.