Abstract
The image quality of light-sheet microscopy degrades due to the system
misalignment or opacity of the sample. In this work, we proposed to
synchronously detect the fluorescence from both the illumination and
detection light path of axially swept light-sheet microscopy (SD-LSM)
to realize the full exploitation of the excited fluorescence. We
adopted spatially variable multi-view deconvolution to fuse images
from the detection and illumination objective of SD-LSM to improve the
resolution degradation caused by the nonlinearity of scanning devices.
We proposed the fusion of images from the detection and illumination
objective of SD-LSM based on background estimation to improve the
signal-to-background ratio (SBR). We separately demonstrated that the
spatial resolution and the SBR can be largely boosted by SD-LSM for
various biological samples, after the fusion of images from the
illumination and detection path. Compared with the images only from
the detection path, images from SD-LSM showed the axial resolution
recovery by up to 14.6 times when axial scanning devices work at high
speed with large nonlinearity, and SBR enhancement by up to 8.2 dB
when imaging a highly scattered sample. SD-LSM could boost the image
quality without any additional time consumption for image acquisition
or photon budget for the sample at a cost of a simple addition of a
camera in the illumination path, compared with conventional axially
swept light-sheet microscopy.
Funder
STI2030-MajorProjects
National Natural Science Foundation of
China
CAMS Innovation Fund for Medical
Sciences
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials