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公开(公告)号：US11327018B2
公开(公告)日：2022-05-10
申请号：US17047124
申请日：2019-04-12
发明人： Somin Eunice Lee , Yunbo Liu , Yipei Wang
摘要： An image reconstruction method includes capturing a reference image of the specimen and capturing a set of original images based on the reference image. The method includes generating a set of analyzed images based on the set of original images by determining an intensity distribution for each pixel of each original image of the set of original images and combining the intensity distribution at each pixel location across the set of original images into an intermediate image. The method includes, identifying an object in the intermediate image. In response to identifying the object in the intermediate image, determining an intensity value of the object in each original image of the set of original images and generating an improved image of the object based on the determined intensity value of the object. The method includes generating a final image including the improved image of the object and displaying the final image.
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公开(公告)号：US20210203824A1
公开(公告)日：2021-07-01
申请号：US17133600
申请日：2020-12-23
发明人： Somin Eunice LEE , Yunbo Liu , Young Geun Park
摘要： A method is presented for reducing glare in images captured by an imaging system. As a starting point, multiple images of a scene are captured by an imaging system to form a set of images, where the imaging system includes a voltage tunable polarizer and each image in the set of images is captured with the voltage tunable polarizer set at a different polarization angle. The method further includes: partitioning each image in the set of images into a plurality of segments; for corresponding segments in the set of images, determining an amount of change in intensity across corresponding segments of images; quantifying the amount of intensity change for each image in the set of images; and identifying a given image from the set of images based on the quantified amount of intensity change, where the given image has least amount of intensity change amongst the set of images.
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公开(公告)号：US11656484B2
公开(公告)日：2023-05-23
申请号：US16761826
申请日：2018-11-09
发明人： Somin Eunice Lee , Yipei Wang , Yunbo Liu
IPC分类号： G02F1/01 , G02B5/30 , G02F1/1335 , G02F1/13363 , G02F1/1347
CPC分类号： G02F1/0136 , G02B5/3025 , G02F1/13471 , G02F1/133531 , G02F1/133638
摘要： Precise polarimetric imaging of polarization-sensitive nanoparticles is essential to resolving their accurate spatial positions beyond the diffraction limit. However, conventional technologies typically employ mechanically rotated optical components, causing beam deviation errors that cannot be corrected beyond the diffraction limit. To overcome this limitation, a spatially stable nano-imaging system is presented for polarization-sensitive nanoparticles. In this disclosure, it is demonstrated that by integrating a voltage-tunable polarizer into optical microscopy, one is able to achieve high precision nano-imaging without mechanically induced image shift. It is also demonstrated that by integrating a voltage-tunable polarizer into photographic imaging system, one can achieve high-speed suppression of reflection glare and/or high-speed variation light exposure to the imager. By applying amplitude-modulated voltages, high-speed rotation of the transmission polarization and/or modulation of transmission intensity can be achieved for dynamic polarimetric nano-imaging. In addition, it is also demonstrated that by integrating a voltage-tunable polarizer into a photographic camera system, one is able to remove glare from object surfaces for providing images with more contrast, and control the variable light exposure as a variable neutral density filter.
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公开(公告)号：US11388350B2
公开(公告)日：2022-07-12
申请号：US17133600
申请日：2020-12-23
发明人： Somin Eunice Lee , Yunbo Liu , Young Geun Park
摘要： A method is presented for reducing glare in images captured by an imaging system. As a starting point, multiple images of a scene are captured by an imaging system to form a set of images, where the imaging system includes a voltage tunable polarizer and each image in the set of images is captured with the voltage tunable polarizer set at a different polarization angle. The method further includes: partitioning each image in the set of images into a plurality of segments; for corresponding segments in the set of images, determining an amount of change in intensity across corresponding segments of images; quantifying the amount of intensity change for each image in the set of images; and identifying a given image from the set of images based on the quantified amount of intensity change, where the given image has least amount of intensity change amongst the set of images.
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