GPU-accelerated 3D mipmap for real-time visualization of ultrasound volume data

Title
GPU-accelerated 3D mipmap for real-time visualization of ultrasound volume data
Authors
신병석
Keywords
Ultrasound data Volume rendering 3D noise filtering Mipmap
Issue Date
2013
Publisher
COMPUTERS IN BIOLOGY AND MEDICINE
Series/Report no.
COMPUTERS IN BIOLOGY AND MEDICINE ; Vol43 no.10 Startpage 1382 Endpage 1389
Abstract
Ultrasound volume rendering is an efficient method for visualizing the shape of fetuses in obstetric sand gynecology. However, in order to obtain high-quality ultrasound volume rendering, noise removal and coordinates conversion are essential prerequisites. Ultrasound data needs to undergo a noise filtering process; otherwise, artifacts and speckle noise cause quality degradation in the final images. Several two- dimensional (2D) noise filtering methods have been used to reduce this noise. However, these 2D filtering methods ignore relevant information in-between adjacent 2D-scanned images. Although three- dimensional (3D) noise filtering methods are used, they require more processing time than 2D-based methods. In addition, the sampling position in the ultrasonic volume rendering process has to be transformed between conical ultrasound coordinates and Cartesian coordinates. We propose a 3D- mipmap-based noise reduction method that uses graphics hardware, as a typical 3D mipmap requires less time to be generated and less storage capacity. In our method, wec ompare the density values of the corresponding points on consecutive mipmap levels and find the noise area using the difference in the density values. We also provide a noise detector for adaptively selecting the mipmap level using the difference of two mipmap levels. Our method can visualize 3D ultrasound data in real time with 3D noise filtering.
URI
http://dx.doi.org/10.1016/j.compbiomed.2013.07.014
http://dspace.inha.ac.kr/handle/10505/33495
ISSN
0010-4825
Appears in Collections:
College of Engineering(공과대학) > Computer Engineering (컴퓨터공학) > Journal Papers, Reports(컴퓨터정보공학 논문, 보고서)
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