TWI792285B

A spectral image autofocus device based on spectral image calculation is characterized by comprising a spectral image sharpness contrast calculation focusing module, a spectral image device, a focusing lens, a beam splitter, a light source, an objective lens, and a focus drive device (a focusing len...

Full description

Saved in:
Bibliographic Details
Main Authors WENG, JUN-REN, LEMMENS, PETER, WENG, JING-FENG, DING, XIAO-JUN, VINCKE, ROBBIE, ZHANG, TING-TING, LU, GUO-HAO, LIAO, TAI-SHAN
Format Patent
LanguageChinese
Published 11.02.2023
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A spectral image autofocus device based on spectral image calculation is characterized by comprising a spectral image sharpness contrast calculation focusing module, a spectral image device, a focusing lens, a beam splitter, a light source, an objective lens, and a focus drive device (a focusing lens group or a lifting platform that can control the focus of multiple points). Thereby, the present invention uses the sharpness comparison calculation of a full-spectrum image in the spectral axis information of a hyperspectral image, or the image-specific spectral band interval calculation sharpness comparison to complete a hyperspectral image fast autofocus device. According to the experimental test results, the spectral image sharpness contrast calculation focusing module provided by the present invention can complete the spectral image fast autofocus device, which is more progressive and industrially applicable in contrast to manual focus adjustment of a conventional multispectral or hyperspectral imaging devic
Bibliography:Application Number: TW202110115184