Abstract
A nonlinear dynamic focusing control method includes: (1) using a minimum length in a scan line having the minimum length and a maximum length as an initial location and assigning a focal point on the scan line; (2) calculating half depth of focus of the focal point, and the initial location plus the half depth of focus of the focal point being the location of this focal point on the scan line; (3) determining an initial calculation location of the next focal point by adding the half depth of focus of the focal point from the location of this focal point on the scan line in the direction of the maximum length; and (4) determining if the initial calculation location of the next focal point is greater than the maximum length, if not, then replacing the initial location by the initial calculation location of the next focal point, and repeating steps (2) to (3); if so, then ending the calculation, wherein the locations of the focal points on the scan line are distributed nonlinearly based on the Shift Invariance characteristic of the Point Spread Function. Thus, focal points can be configured more effectively and computational complexity of an imaging system with an array transducer can be reduced.
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| 5G | 18/10/2022 | ISLD-202209-082 | INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
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| CN104142608B | 5G | 18/10/2022 | ISLD-202209-082 | INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
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| US2014334267A1 | 5G | 18/10/2022 | ISLD-202209-082 | INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
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| US9645121B2 | 5G | 18/10/2022 | ISLD-202209-082 | INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
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