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Chinese Optics Letters

Chinese Optics Letters


  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 6 — Jun. 10, 2012
  • pp: 061101–

Co-registration method for photoacoustic imaging and laser speckle imaging

Yuan Gao, Yong Deng, Xiliang Tong, Hui Wang, Zilin Deng, Xiaoquan Yang, Yanyan Liu, Hui Gong, and Qingming Luo  »View Author Affiliations

Chinese Optics Letters, Vol. 10, Issue 6, pp. 061101- (2012)

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Combining photoacoustic (PA) imaging with laser speckle (LS) imaging (LSI) can simultaneously determine total hemoglobin concentration (HbT), hemoglobin oxygen saturation (SO2), and blood flow rates. Thus, the co-registration of PA and LS images is important in physiological studies and pathological diagnosis. This letter presents a co-registration algorithm combining mutual information with the maximum between-class variance segmentation method (Otsu method). The mutual information and Otsu method are used to provide the registration measure criterion and image feature recognition, respectively. The evaluation results show that the registration function possesses a single maximum peak and high smoothness across the global co-registration district, indicating a robust behavior. Moreover, this method has good registration accuracy, and the fusion result simultaneously visualizes the separate functional information of two kinds of images.

© 2012 Chinese Optics Letters

OCIS Codes
(100.2000) Image processing : Digital image processing
(110.5120) Imaging systems : Photoacoustic imaging
(110.6150) Imaging systems : Speckle imaging
(170.2655) Medical optics and biotechnology : Functional monitoring and imaging

ToC Category:
Imaging Systems

Yuan Gao, Yong Deng, Xiliang Tong, Hui Wang, Zilin Deng, Xiaoquan Yang, Yanyan Liu, Hui Gong, and Qingming Luo, "Co-registration method for photoacoustic imaging and laser speckle imaging," Chin. Opt. Lett. 10, 061101- (2012)

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