Practical real-time deconvolution and image enhancement of medical ultrasound

Nathan Cohen

doi:10.1117/12.59538

26 June 1992 Practical real-time deconvolution and image enhancement of medical ultrasound

Nathan Cohen

Proceedings Volume 1660, Biomedical Image Processing and Three-Dimensional Microscopy; (1992) https://doi.org/10.1117/12.59538
Event: SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, 1992, San Jose, CA, United States

Abstract

A variety of effects inherent to the instrument and propagation medium degrade image quality in medical ultrasound. These effects include: sidelobes and clutter, blurring, and phase aberration. Dynamic focusing and dynamic apodization have reduced these problems at the expense of optimum resolution and cost effectiveness; smearing is still a part of ultrasonic images. We report an image processing approach in which the aforementioned effects and constraints were rectified through digital deconvolution image enhancement. The point spread function was mapped onto a position-invariant surface and deconvolution was done using a variant of CLEAN. A new method of artifact mitigation was devised called comparison masking. The results indicate increased resolution, by up to five times, on a GE RT3600 with B-mode. Sidelobe reduction is evident. The results may be obtained by using either a PC or a parallel processor in real-time. Deblurring may now be considered a viable option for real- time medical ultrasound and other echo-graphic modalities.

Citation Download Citation

Nathan Cohen "Practical real-time deconvolution and image enhancement of medical ultrasound", Proc. SPIE 1660, Biomedical Image Processing and Three-Dimensional Microscopy, (26 June 1992); https://doi.org/10.1117/12.59538

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