This application discloses a portable
autofocus hyperspectral imaging system and method. The
system includes a
spectral data acquisition module, a
spectral analysis module, a displacement platform, an inertial measurement module, and a control module. The
spectral data acquisition module includes an adjustable focus lens, a
beam splitter, a first collimating lens group, and an
image sensor. The
spectral analysis module is equipped with an
electronic shutter, a slit, a second collimating lens group, a
grating, a third collimating lens group, and an imaging element along the
optical path. The displacement platform drives the
spectral analysis module to perform internal scanning motion. The control module executes the
autofocus algorithm,
automatic exposure control, and multi-
source data fusion and preprocessing. This application can improve focusing accuracy and
spatial registration accuracy of
spectral data in complex depth-of-field scenes, intelligently and adaptively adjust
exposure parameters, compensate for
geometric distortion, support unattended
continuous operation, reduce the cost of ineffective operations, and improve the reliability and
usability of hyperspectral data.