Extended Depth-of-Field of a Miniature Optical Endoscope Using Wavefront Coding
Applied Sciences, 2020 Endoscopic imaging is an indispensable tool for visual inspection of surfaces in hard-to-access places. The conventional optical endoscope only enables imaging the regions that lie close to the focal plane, and therefore improving the depth of field (DOF)
Lei Yang +6 more
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Test of the Practicality and Feasibility of EDoF-Empowered Image Sensors for Long-Range Biometrics
Sensors, 2016 For many practical applications of image sensors, how to extend the depth-of-field (DoF) is an important research topic; if successfully implemented, it could be beneficial in various applications, from photography to biometrics. In this work, we want to
Sheng-Hsun Hsieh +2 more
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Depth estimation and validation of plenoptic light field camera
, 2023 A light field (LF) camera can record both the spatial and directional information of light rays in a three-dimensional (3D) scene. This is different from traditional photography, which sums up all the light rays to record their intensity and discard the ...
Hossain, Md. Moinul +4 more
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Designing high-efficiency extended depth-of-focus metalens via topology-shape optimization
Nanophotonics, 2022 Longitudinal optical field modulation is of critical importance in a wide range of applications, including optical imaging, spectroscopy, and optical manipulation.
Zheng Yuhan +8 more
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Extending AMCW lidar depth-of-field using a coded aperture [PDF]
, 2011 By augmenting a high resolution full-field Amplitude Modulated Continuous Wave lidar system with a coded aperture, we show that depth-of-field can be extended using explicit, albeit blurred, range data to determine PSF scale. Because complex domain range-
Michael J. Cree +5 more
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Two independent mechanisms for motion-in-depth perception : evidence from individual differences [PDF]
, 2010 Our forward-facing eyes allow us the advantage of binocular visual information: using the tiny differences between right and left eye views to learn about depth and location in three dimensions.
Harold T Nefs +11 more
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The role of monocularly visible regions in depth and surface perception [PDF]
, 2009 The mainstream of binocular vision research has long been focused on understanding how binocular disparity is used for depth perception. In recent years, researchers have begun to explore how monocular regions in binocularly viewed scenes contribute to ...
Harris, Julie +3 more
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Investigation of extended depth-of-field f/8 camera with optimized cubic phase mask and digital restoration [PDF]
EPJ Web of Conferences, 2020 An investigation of extended depth-of-field camera with optimized phase mask and digital restoration is presented. The goal of this paper is to implement the wavefront coding technique without affecting much of the original design, and the design has ...
Chiu Po-Sheng +3 more
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Learning Wavefront Coding for Extended Depth of Field Imaging [PDF]
IEEE Transactions on Image Processing, 2021 Depth of field is an important factor of imaging systems that highly affects the quality of the acquired spatial information. Extended depth of field (EDoF) imaging is a challenging ill-posed problem and has been extensively addressed in the literature.
Ugur Akpinar +4 more
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All-in-Focus Sweep Imaging Based on Wigner Distribution Function
IEEE Access, 2018 To extend the depth of field, the all-in-focus image can be achieved via the computational imaging method by designing the data acquisition process under the condition of maintaining the signal-to-noise ratio.
Chang Liu, Shan Gao, Xing Zhao, Jun Qiu
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