| Patent application number | Description | Published |
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| 20080262353 | METHOD AND APPARATUS FOR FAST VOLUME RENDERING OF 3D ULTRASOUND IMAGE - The invention provides a method and apparatus for fast volume rendering of 3D ultrasound image, comprising a dividing step, a calculating step, a determining step, a morphological closing operation step and a filling step, wherein each flat grid can be entirely filled by obtaining gray-scale values for all pixels inside the grid through interpolating; for the non-flat grid, the steps of dividing, calculating, determining and filling are performed repeatedly until the non-flat grid is subdivided into atomic grids to calculate gray-scale values for remaining pixels by projection. As the method can be finished in the rear end, no difficulty occurs in the implementation, and no process for being adapted to previous frames is required. Therefore, the method can improve the rendering speed effectively without degrading the quality of image to put 3D ultrasound imaging to the best use. | 10-23-2008 |
| 20080262355 | METHOD AND APPARATUS FOR FAST 3D ULTRASOUND IMAGING - The present invention provides a method and apparatus for fast 3D ultrasound imaging. The method comprises data acquisition, desired data selection, data smoothing, table construction, ray casting, table look-up, ray synthesis and final result output. The apparatus comprises an acquisition module, a selection module, a smoothing module, a construction module, a ray casting module, a table look-up module, a synthesis module and an output module. The present invention can avoid a huge amount of unnecessary reconstruction calculations by smoothing preprocessing and constructing the reconstruction table and the gradient table as well as transforming coordinates of the points where necessary. The present invention has greater practical applicability, because the existing imaging technology demands that the radius for rotating the probe be identical to the radius of the probe. | 10-23-2008 |
| 20090062649 | SCAN CONVERSION FOR ULTRASONIC IMAGING AND APPARATUS USING THE SAME - A scan conversion method for ultrasonic imaging is disclosed. The method comprises a storage step for storing sample data derived from ultrasonic echo signals into a memory; a conversion step for performing conversion between target coordinate points in a display coordinate system and interpolation coordinate points in a sampling coordinate system; and an interpolation step for interpolating several sample data adjacent to the interpolation coordinate points to obtain the interpolation data at the interpolation coordinate points, wherein the interpolation step includes a nonlinear interpolation substep selected for low-pass filter of the ultrasonic echo signals. When interpolation is conducted along Axis θ of the polar coordinates, 4-point interpolation may be used. The interpolation coefficient may be based on cubic B-spline function, which has relatively uniform low-pass filter effects, thereby reducing noise result from interpolation in ultrasonic image. | 03-05-2009 |
| 20090088644 | CIRCULAR ARC WIDE BEAM TRANSMISSION METHOD AND APPARATUS FOR ULTRASONIC IMAGING - A circular arc wide beam transmission method includes setting parameters for a focusing circular arc and calculating a transmission delay for each of the array elements in a transmission aperture of a probe based on the parameters for the focusing circular arc. An ultrasonic imaging system controls each array element to transmit ultrasonic waves according to the transmission delay for that array element. | 04-02-2009 |
| 20090131794 | METHOD AND APPARATUS FOR QUICKLY DETERMINING AN IMAGING REGION IN AN ULTRASONIC IMAGING SYSTEM - A method and apparatus for quickly determining an imaging region associated with the current transmission in an ultrasonic imaging system includes determining a profile of the imaging region to be processed and, in turn, boundaries of that imaging region according to characteristics of the current transmitted sound field and the demand of the imaging mode. The method also includes computing a set of rectangular coordinates of points on the imaging region to be processed according to the determined boundaries. | 05-21-2009 |
| 20090143680 | METHOD AND APPARATUS FOR SCAN CONVERSION AND INTERPOLATION OF ULTRASONIC LINEAR ARRAY STEERING IMAGING - A method and apparatus for scan conversion and interpolation of linear array steering imaging in an ultrasonic system are disclosed. The method computes the points that are most related to the point to be interpolated in the principal direction of the point spread function and performs interpolation in the principal direction of the point spread function according to the steering angle of the scan lines so as to obtain a more accurate interpolation result. | 06-04-2009 |
| 20090214093 | METHOD AND APPARATUS FOR ULTRASONIC IMAGING IN MMODE - An mmode imaging method and apparatus for an ultrasonic diagnostic device is provided to increase the continuity of displayed mmode images. An mmode imaging method performed by an ultrasonic diagnosis device selects sample points on frames of bmode images, converts bmode data of the sample points obtained from the frames of bmode images into converted mmode data, produces interpolated mmode data based on the echo data of corresponding sample points on at least two different frames, and images at least a portion of the mmode data in time sequence. | 08-27-2009 |
| 20090303833 | METHOD OF VOLUME-PANORAMA IMAGING PROCESSING - The present invention discloses a method of volume-panorama imaging processing, which generates a volume-panorama image by subsequently splicing respective image frames from an image sequence obtained in a real-time way or stored in a medium based upon the fact that the immediately adjacent image frames have the largest correlation. The method comprises the steps of: reading the image sequence, and firstly initializing an aligned image and a spliced image; dividing the i-th image frame F | 12-10-2009 |
| 20110129137 | METHODS AND SYSTEMS FOR DEFINING A VOI IN AN ULTRASOUND IMAGING SPACE - An ultrasound imaging system provides for defining a VOI in an ultrasound imaging space. The system defines an initial frame of the VOI in the ultrasound imaging space, receives a selection of at least one reference point at an arbitrary location in the ultrasound imaging space, creates at least one curved surface using at least one element of the initial frame and the at least one reference point, and then creates VOI based on the curved surface in the ultrasound imaging space. | 06-02-2011 |
| 20110164794 | METHODS AND SYSTEMS FOR COLOR FLOW DYNAMIC FRAME PERSISTENCE - Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided. | 07-07-2011 |
