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Ultrasound Med Biol · Jun 2003
3-D US frame positioning using speckle decorrelation and image registration.
- Ruey-Feng Chang, Wen-Jie Wu, Dar-Ren Chen, Wei-Ming Chen, Wei Shu, Jau-Hong Lee, and Long-Bin Jeng.
- Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, Taiwan.
- Ultrasound Med Biol. 2003 Jun 1; 29 (6): 801-12.
AbstractIn this paper, a new positioning system is proposed for the 3-D ultrasound (US). This system combines the image registration technique and speckle decorrelation algorithm to accurately position sequential ultrasonic images without any additional positioning hardware. The speckle decorrelation algorithm estimates the relative distance of two neighboring frames and the image registration technique gets the range of the whole 3-D ultrasonic data set and makes slight modification on each frame's position. The image registration technique is based on the reference image, which is perpendicular to the 3-D ultrasonic data set. This reference image intersects each frame of the 3-D ultrasonic data set in a line. For each frame, the intersectional line is first found and then the location in the reference image can be used to estimate the position of this frame. This system uses the data set of consecutive 2-D freehand-scanned US B-mode images to construct the 3-D US volume data, and it can be integrated into the 3-D US volume rendering system.
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