Detection of microaneurysms and hemorrhages based on improved Hessian matrix
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Computer Assisted Radiology and Surgery"
DOI: 10.1007/s11548-021-02358-5
Abstract: Knowing the early lesion detection of fundus images is very important to prevent blindness, and accurate lesion segmentation can provide doctors with diagnostic evidence. This study proposes a method based on improved Hessian matrix eigenvalue… read more here.
Keywords: detection; microaneurysms hemorrhages; based improved; improved hessian ... See more keywords
Three-dimensional Hessian matrix-based quantitative vascular imaging of rat iris with optical-resolution photoacoustic microscopy in vivo
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Biomedical Optics"
DOI: 10.1117/1.jbo.23.4.046006
Abstract: Abstract. For the diagnosis and evaluation of ophthalmic diseases, imaging and quantitative characterization of vasculature in the iris are very important. The recently developed photoacoustic imaging, which is ultrasensitive in imaging endogenous hemoglobin molecules, provides… read more here.
Keywords: three dimensional; vasculature; microscopy; dimensional hessian ... See more keywords
Least-squares migration with a blockwise Hessian matrix: A prestack time-migration approach
Sign Up to like & getrecommendations! Published in 2019 at "GEOPHYSICS"
DOI: 10.1190/geo2018-0533.1
Abstract: We have developed an explicit inverse approach with a Hessian matrix for the least-squares (LS) implementation of prestack time migration (PSTM). A full Hessian matrix is divided into a series of computationally tractable small-sized matrices… read more here.
Keywords: least squares; matrix; hessian matrix; blockwise hessian ... See more keywords
Reducing Motion Blur in Ghost Imaging Via the Hessian Matrix
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DOI: 10.3390/app11010323
Abstract: Different from conventional imaging, ghost imaging (GI) is an indirect modality of imaging that needs multiple measurements of the second-order correlation of data collected from two detectors. In some particular cases, the exposure time of… read more here.
Keywords: motion blur; hessian matrix; motion; ghost imaging ... See more keywords