Abstract:
Ultrasound imaging is a widely used medical tool that can help
physician evaluate, diagnose and treat medical conditions, due to
its noninvasive nature, low cost and capability of forming real time
imaging.it is widely used technique and considered very safe due
to non ionizing radiation properties unlike X-ray. The ultrasound
image shows granular appearance called speckle, this noise
decrease the human ability to identify pathological tissue from
normal tissue. The main purpose for speckle reduction in medical
ultrasound imaging to improve the image into keep in mind that
certain speckle contains diagnostic information and should be
retained.
The objective of this thesis to make comparative studies between
eleven filters. The total variation is the best filter because it has the
least root mean square error and highest signal to noise ratio, peak
signal to noise ratio and structure similarity index between two
images.
A new hybrid technique that merge edges detection and the best
filter total variation. It has been found that the image quality
evaluation metrics and histogram of the proposed method better
than all other methods in enhance and preserve edges.
