Results 11 to 20 of about 1,860,088 (200)
Recent Advances in Lensless Imaging. [PDF]
Optica, 2022 Lensless imaging provides opportunities to design imaging systems free from the constraints imposed by traditional camera architectures. Due to advances in imaging hardware, fabrication techniques, and new algorithms, researchers have recently developed lensless imaging systems that are extremely compact and lightweight or able to image higher ...
Boominathan V +3 more
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Lensless ultrafast optical imaging
Light: Science & Applications, 2022 Lensless single-shot ultrafast optical imaging is realized by integrating an acousto-optic programmable dispersive filter with spectrally filtered sequentially time all-optical mapping photography, which enables independent control of frame rate, frame ...
Jian Zhao, Mingsheng Li
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Lensless Three-Dimensional Imaging under Photon-Starved Conditions
Sensors, 2023 In this paper, we propose a lensless three-dimensional (3D) imaging under photon-starved conditions using diffraction grating and computational photon counting method.
Jae-Young Jang, Myungjin Cho
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Optimization of Lensless Imaging Using Ray Tracing
Applied SciencesLensless microscopy is a well-established imaging approach that replaces traditional lenses with phase modulators, enabling compact, low-cost, and computationally driven analysis of biological samples.
Samira Arabpou, Simon Thibault
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Lensless hypercentric imaging using digital holography
Journal of the European Optical Society-Rapid PublicationsHypercentric imaging is a powerful imaging modality that allows for the inspection of a specimen and its sides in the same recording. Typically, hypercentric imaging involves special lens objectives, which are bulky and limit the use of interferometric ...
Falldorf Claas +2 more
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Lensless imaging with partially coherent light
Optics Letters, 2007 Based on the fourth-order correlation of light, lensless imaging with incoherent or partially coherent light is investigated theoretically by use of classical optical coherence theory. A novel lensless optical system for implementing imaging is proposed.
Yangjian, Cai, Fei, Wang
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Lensless imaging by compressive sensing [PDF]
2013 IEEE International Conference on Image Processing, 2013 In this paper, we propose a lensless compressive imaging architecture. The architecture consists of two components, an aperture assembly and a sensor. No lens is used. The aperture assembly consists of a two dimensional array of aperture elements. The transmittance of each aperture element is independently controllable. The sensor is a single detection
Gang Huang 0003 +3 more
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Lensless Imaging with a Controllable Aperture [PDF]
2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1 (CVPR'06), 2006 In this paper we propose a novel, highly flexible camera. The camera consists of an image detector and a special aperture, but no lens. The aperture is a set of parallel light attenuating layers whose transmittances are controllable in space and time. By applying different transmittance patterns to this aperture, it is possible to modulate the incoming
Assaf Zomet, Shree K. Nayar
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XUV lensless imaging with spatially shaped high-harmonic beams [PDF]
, 2020 This thesis presents two novel advances in the field of high harmonic generation along with a demonstration of application to the lensless imaging technique known as Fourier Transform Holography.
Treacher, Daniel
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THz coherent lensless imaging [PDF]
Applied Optics, 2019 Imaging with THz radiation has proved an important tool for both fundamental science and industrial use. Here we review a class of THz imaging implementations, named coherent lensless imaging, that reconstruct the coherent response of arbitrary samples with a minimized experimental setup based only on a coherent source and a camera.
Lorenzo Valzania +6 more
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