Multi-focus image fusion with enhancement filtering for robust vascular quantification using photoacoustic microscopy.
Opt Lett
; 47(15): 3732-3735, 2022 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-35913301
ABSTRACT
Accurate identification and quantification of microvascular patterns are important for clinical diagnosis and therapeutic monitoring using optical-resolution photoacoustic microscopy (OR-PAM). Due to its limited depth of field, conventional OR-PAM may not fully reveal microvascular patterns with enough details in depth range, which affects the segmentation and quantification. Here, we propose a robust vascular quantification approach via combining multi-focus image fusion with enhancement filtering (MIFEF). The multi-focus image fusion is constructed based on multi-scale gradients and image matting to improve image fusion quality by considerably achieving accurate focus measurement for initial segmentation as well as decision map refinement. The enhancement filtering identifies the vessels and handles noise without deforming microvasculature. The performance of the MIFEF were evaluated employing a leaf phantom, mouse livers and brains. The proposed method for OR-PAM can significantly facilitate the clinical provision of optical biopsy of vascular-related diseases.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Técnicas Fotoacústicas
/
Microscopia
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2022
Tipo de documento:
Article