Signal prediction method and device for photoacoustic imaging annular sparse array
A sparse array and signal prediction technology, applied in the fields of artificial intelligence and biomedical engineering, can solve problems affecting imaging quality, achieve the effect of improving imaging quality and solving artifacts
Active Publication Date: 2022-08-05
ZHEJIANG LAB
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[0003] Aiming at the fact that there are artifacts in the limited signal reconstruction image collected by the existing photoacoustic imaging annular sparse array, which affects the imaging quality, the present invention provides a photoacoustic imaging annular sparse array signal prediction method to fill the limited signal of the sparse array
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[0033] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.
[0034] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "an...
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The invention discloses a photoacoustic imaging annular sparse array signal prediction method and device. The method uses limited signals collected by ultrasonic transducers in the photoacoustic imaging sparse array, and passes through a volume from the ultrasonic transducer acoustic signal to the acoustic signal. Integral Gated Recurrent Neural Network (WWCG‑Net) to predict received signals at locations where ultrasound transducer elements are not placed in a ring-shaped sparse array. After supplementing the sparse array data, the reconstructed photoacoustic images can effectively suppress the artifacts caused by the sparse data reconstruction. The sparse array can improve the efficiency of data collection and save the cost of the experimental system. Using the sparse array signal prediction method proposed in the present invention to reconstruct photoacoustic imaging, it is not necessary to collect simulation and experimental image data for training, and time-series photoacoustic signal data is used for training and prediction, which is a simple and effective method for reconstructing high-quality from sparse array data. image way.
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technical field [0001] The invention belongs to the field of artificial intelligence and biomedical engineering, and in particular relates to a signal prediction method and device for a photoacoustic imaging annular sparse array. Background technique [0002] Photoacoustic imaging is an emerging biomedical imaging method formed on the basis of combining the respective advantages of optical and acoustic technologies. Usually, lasers are used to emit light sources and ultrasonic transducers with multiple elements are used to receive acoustic signals. Photoacoustic imaging equipment requires sophisticated manufacturing processes and high-density array components, which will greatly increase the cost and complexity of the imaging system. Limited by the processing technology, the high-density array ultrasonic transducer needs to be further developed. At the same time, the sparse array is a simplified solution, which can reduce the number of transducers without changing the total...
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IPC IPC(8): G06K9/00A61B8/08
CPCA61B8/5269G06F2218/22G06F2218/08
Inventor 王若凡祝婧施钧辉李驰野陈睿黾
Owner ZHEJIANG LAB