Speckle attenuation in optical coherence tomography by curvelet shrinkage

• Published in: Optics letters Vol. 34; no. 10; p. 1516
• Main Authors: Jian, Zhongping, Yu, Zhaoxia, Yu, Lingfeng, Rao, Bin, Chen, Zhongping, Tromberg, Bruce J
• Format: Journal Article
• Language: English
• Published: United States 15.05.2009
• Subjects: Algorithms; Fourier Analysis; Image Processing, Computer-Assisted - methods; Tomography, Optical Coherence - methods; Tomography, Optical Coherence - standards

We describe an algorithm based on shrinkage in the curvelet domain to attenuate speckles in optical coherence tomography (OCT) images. The algorithm exploits the curvelet transform's sparse representation of edge discontinuities that are common in OCT images and its ability to map signals and n...