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Proceedings Paper

Image enhancement for sonograms acquired by high frame rate mode
Author(s): Wen-Li Lee; Mei-Juan Chen
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Paper Abstract

Sonography performed in high frame rate aims to achieve high temporal resolution. Echocardiography and fetal echocardiography are typical examinations performed in this manner. In general, image quality of sonograms acquired by high frame rate mode is poorer compared to that acquired by low frame rate mode. Poor definition and rich of noises are drawbacks usually found in the images obtained in high frame rate. We propose an approach to improve image quality of the sonograms, in which the noises can effectively be removed from the corrupted images and the definition of textures can also be enhanced. Three techniques are involved in the approach: image interpolation, addition of spatial information and averaging image by cycle spinning. The first technique is employed to generate extra spatial information. The second one intends to extract high frequency information from the original image and add the information to the high frequency subbands so that the image can further be enhanced. The last technique aims to remove noises by averaging images which have been undergone frame shifting and coefficient addition. Our experimental results show that noises randomly scattered in the images, not speckles, are effectively removed, and the definition of texture is further reinforced.

Paper Details

Date Published: 12 March 2010
PDF: 9 pages
Proc. SPIE 7629, Medical Imaging 2010: Ultrasonic Imaging, Tomography, and Therapy, 762916 (12 March 2010); doi: 10.1117/12.844118
Show Author Affiliations
Wen-Li Lee, National Dong Hwa Univ. (Taiwan)
Tzu Chi College of Technology (Taiwan)
Mei-Juan Chen, National Dong Hwa Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7629:
Medical Imaging 2010: Ultrasonic Imaging, Tomography, and Therapy
Jan D'hooge; Stephen A. McAleavey, Editor(s)

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