Chinese Optics Letters, Volume. 13, Issue 9, 091701(2015)
Multiscale Hessian filter-based segmentation and quantification method for photoacoustic microangiography
Fig. 2. Sensitivity of the Hessian filter to the maximum scale: (a–c) segmentation results obtained by the multiscale Hessian filter using maximum scale 1, 7, 10, and (d–f) is the corresponding vessel diameter quantification map.
Fig. 3. Performance of the multiscale Hessian-based segmentation algorithm: (a) the original photoacoustic microangiography, (b) segmentation result obtained by the local adaptive threshold method, (c) segmentation result obtained by the Hessian filter, (d) segmentation result obtained by the proposed method with an over-large maximum scale, (e) segmentation result obtained by the proposed method with an appropriate maximum scale, and (f) the corresponding vessel diameter quantification map of (e).
Fig. 5. Small area quantification maps: (a) vessel length fraction map, (b) vessel density map, and (c) fractal dimension map.
Fig. 7. Mean and standard deviations of the measurement parameters within the two ROIs: (a) vessel diameter, (b) vessel length fraction, (c) vessel density, (d) fractal dimension.
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Ting Liu, Mingjian Sun, Naizhang Feng, Zhenghua Wu, Yi Shen, "Multiscale Hessian filter-based segmentation and quantification method for photoacoustic microangiography," Chin. Opt. Lett. 13, 091701 (2015)
Category: Medical optics and biotechnology
Received: Apr. 26, 2015
Accepted: Jun. 30, 2015
Published Online: Sep. 14, 2018
The Author Email: Mingjian Sun (sunmingjian@hit.edu.cn), Naizhang Feng (fengnz@yeah.net)