Results 21 to 30 of about 758,450 (252)
Multi-Focus Image Fusion Using Focal Area Extraction in a Large Quantity of Microscopic Images
Sensors, 2021 The non-invasive examination of conjunctival goblet cells using a microscope is a novel procedure for the diagnosis of ocular surface diseases. However, it is difficult to generate an all-in-focus image due to the curvature of the eyes and the limited ...
Jiyoung Lee +7 more
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Geometric and Optic Characterization of a Hemispherical Dome Port for Underwater Photogrammetry
Sensors, 2016 The popularity of automatic photogrammetric techniques has promoted many experiments in underwater scenarios leading to quite impressive visual results, even by non-experts. Despite these achievements, a deep understanding of camera and lens behaviors as
Fabio Menna +3 more
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Terminology - clarifying the current confusion and presenting the correct terminology
Frontiers in Ophthalmology, 2023 Most readers will be familiar with terminology (from meetings and conferences) that we, the editors, would deem to be incorrect or confusing. In general, we all tend to accept the information conveyed to us without really questioning what the terms truly
Ejaz Ansari, Ejaz Ansari
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Flexible Depth of Field Photography [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2008 The range of scene depths that appear focused in an image is known as the depth of field (DOF). Conventional cameras are limited by a fundamental trade-off between depth of field and signal-to-noise ratio (SNR). For a dark scene, the aperture of the lens must be opened up to maintain SNR, which causes the DOF to reduce.
Sujit Kuthirummal +3 more
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Effects of depth of field on eye movement
The Journal of Engineering, 2019 Depth of field is an important image feature, which can be used to enhance observers’ perception of stereopsis. To explore how the depth of field influenced observers’ attention in images, a within-subject experiment including two factors, two scenes and
Tingting Zhang +4 more
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Depth‐of‐Field of the Accommodating Eye [PDF]
Optometry and Vision Science, 2014 ABSTRACT Purpose To obtain experimental values of the depth‐of‐field (DOFi) of the human eye for different accommodative states. Methods First, the monochromatic ocular wavefront of seven eyes from young subjects ...
Bernal-Molina, Paula +3 more
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Depth of Field Extension in Laser Speckle Contrast Imaging
IEEE Access, 2020 A new technique that can increase the depth of field (DOF) for in vivo tissue imaging is presented. Extended DOF for the imaging of strongly scattering media is realized through combining laser speckle contrast imaging (LSCI) with light field (LF ...
Xiaohui Ma +5 more
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Sillages Critiques, 2016 The article explores the notions related to the perception of the figure/ground contrast in the visual arts. Starting from the history of the words “negative” and “depth of field” in 19th-century photography, it studies solutions such as the possible ...
Marie-Madeleine Martinet
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A Depth-Enhanced Holographic Super Multi-View Display Based on Depth Segmentation
Micromachines, 2023 A super multi-view (SMV) near-eye display (NED) effectively provides depth cues for three-dimensional (3D) display by projecting multiple viewpoint or parallax images onto the retina simultaneously.
Zi Wang +4 more
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Using Gaze-Contingent Depth of Field to Facilitate Depth Perception [PDF]
i-Perception, 2014 The lens system of the human eye has a limited depth of field that creates blur patterns that depend on its focus and the relative distances of the observed objects.
M Mauderer +3 more
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