Patent
Edge enhancement system for ultrasound images
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TLDR
In this article, the authors proposed a method for enhancing an ultrasound image by dividing the image into a plurality of processing blocks, picking blocks that satisfy certain statistical constraints for edge enhancement, and then displaying the pixels in each block, whether enhanced or not, that are above a display threshold for the block in question.Abstract:
A method for enhancing an ultrasound image The image is assumed to be in the form of an ordered array of pixels Each pixel corresponding to the intensity of the echo generated by a corresponding voxel in an ultrasound energy field Axial and lateral directions relative to the ultrasound beam used to generate the sound field are defined within the ordered array The method of the present invention includes the steps of dividing the image into a plurality of processing blocks, picking blocks that satisfy certain statistical constraints for edge enhancement, enhancing the pixels in the selected blocks, and then displaying the pixels in each block, whether enhanced or not, that are above a display threshold for the block in question The statistical constraints are determined by second order statistics with reference to the axial and later directions In one embodiment of the present invention, sum and difference histograms are used to approximate the second order statistics, thereby reducing the computational loadread more
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Patent
Method for automatic contour extraction of a cardiac image
TL;DR: In this paper, an improved method is provided for extracting the edge boundary of an object presented as an ultrasound video image, in particular the edges of the LV of the heart, which includes preprocessing algorithms, contour extraction algorithms and knowledge based contour following algorithms.
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TL;DR: In this paper, a method and apparatus for evaluating ultrasonic images of muscle of an animal or carcass was presented. Butterworth et al. presented a method for detecting an outline of a muscle from an ultrasonic image of an animals body.