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Academic Calendar

Event Scheduled for Dec 13, 2011

Event: Doctoral Dissertation Oral Defense: Compounding and Hexagonal Filtering for Ultrasound Enhancement by Sonia H. Contreras Ortiz

Location: ITEB 360

Time: 10:00 am

Details of Event:
Medical ultrasound imaging uses pulsed acoustic signals that are transmitted and received by a hand-held transducer. This technology is useful in diagnostic imaging and has several advantages: it is cost-effective and safe in many applications. However, the quality of the images is limited by the physical properties of ultrasound signals. This dissertation proposes a combination of spatial compounding and hexagonal filtering algorithms to reduce speckle and improve resolution in ultrasound images. The results showed total improvements in signal to noise ratio and contrast to noise ratio of up to 360%and 300% respectively in simulated images, and up to 200% and up to 100% in phantom images. With enhancement techniques, ultrasound images may become even more valuable and more suitable for quantitative measurements.

Target Audience: Not Available

Sponsored By: Biomedical Engineering

Pamphlet/Flyer: View file here

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