3E-1 Real-Time Ultrasonic Imaging System Based on Discrete Cosine Transform for NDE Applications

Author

Oruklu, Erdal ; Saniie, Jafar

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL

fYear

2006

fDate

2-6 Oct. 2006

Firstpage

428

Lastpage

431

Abstract

This paper presents a unified, hardware efficient architecture for multi-purpose ultrasonic imaging systems. Ultrasonic flaw detection, data compression and denoising applications are implemented within the same framework by integrating a common transform block, discrete cosine transform (DCT). DCT is primarily used for energy compaction properties in compression applications and for frequency decomposition in detection algorithms. Furthermore, recursive DCT implementations based on Clenshaw´s formula are presented in order to reduce the hardware requirements of large scale transforms for a feasible real-time SoC architecture

Keywords

discrete cosine transforms; flaw detection; ultrasonic imaging; ultrasonic materials testing; NDE applications; compression applications; data compression; denoising applications; detection algorithms; discrete cosine transform; energy compaction properties; frequency decomposition; real-time ultrasonic imaging; ultrasonic flaw detection; Compaction; Data compression; Detection algorithms; Discrete cosine transforms; Discrete transforms; Frequency; Hardware; Noise reduction; Real time systems; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2006. IEEE

Conference_Location

Vancouver, BC

ISSN

1051-0117

Print_ISBN

1-4244-0201-8

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2006.118

Filename

4151974