scholarly journals EDoF-ToF: extended depth of field time-of-flight imaging

2021 ◽  
Author(s):  
Jasper Tan ◽  
Vivek Boominathan ◽  
Richard Baraniuk ◽  
Ashok Veeraraghavan
Keyword(s):  
Time Of Flight ◽  
Depth Of Field ◽  
Extended Depth Of Field ◽  
Time Of Flight Imaging

scholarly journals Can Liquid Lenses Increase Depth of Field in Head Mounted Video See-Through Devices?

2021 ◽  
Vol 7 (8) ◽  
pp. 138
Author(s):  
Marina Carbone ◽  
Davide Domeneghetti ◽  
Fabrizio Cutolo ◽  
Renzo D’Amato ◽  
Emanuele Cigna ◽  
...  
Keyword(s):  
Control System ◽  
Clinical Practice ◽  
Augmented Reality ◽  
Time Of Flight ◽  
Depth Of Field ◽  
Liquid Lenses ◽  
Good Potential ◽  
Distance Sensor ◽  
Limited Depth ◽  
Lens Optics

Wearable Video See-Through (VST) devices for Augmented Reality (AR) and for obtaining a Magnified View are taking hold in the medical and surgical fields. However, these devices are not yet usable in daily clinical practice, due to focusing problems and a limited depth of field. This study investigates the use of liquid-lens optics to create an autofocus system for wearable VST visors. The autofocus system is based on a Time of Flight (TOF) distance sensor and an active autofocus control system. The integrated autofocus system in the wearable VST viewers showed good potential in terms of providing rapid focus at various distances and a magnified view.

3-D reconstruction by extended depth-of-field in failure analysis – Case study I: Qualitative fractographic investigation of fractured bolts in a partial valve

2010 ◽  
Vol 17 (2) ◽  
pp. 515-520 ◽  
Author(s):  
Luis Rogerio de Oliveira Hein ◽  
Kamila Amato de Campos ◽  
Pietro Carelli Reis de Oliveira Caltabiano ◽  
Ana Lúcia Horovistiz
Keyword(s):  
Failure Analysis ◽  
Depth Of Field ◽  
Fractographic Investigation ◽  
Extended Depth Of Field

scholarly journals Two-photon microscopy with simultaneous standard and extended depth of field using a tunable acoustic gradient-index lens

2009 ◽  
Vol 34 (11) ◽  
pp. 1684 ◽  
Author(s):  
Nicolas Olivier ◽  
Alexandre Mermillod-Blondin ◽  
Craig B. Arnold ◽  
Emmanuel Beaurepaire
Keyword(s):  
Depth Of Field ◽  
Gradient Index ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Gradient Index Lens ◽  
Extended Depth Of Field

Ultrahigh resolution optical coherence elastography using a Bessel beam for extended depth of field

2016 ◽  
Author(s):  
Andrea Curatolo ◽  
Martin Villiger ◽  
Dirk Lorenser ◽  
Philip Wijesinghe ◽  
Alexander Fritz ◽  
...  
Keyword(s):  
Bessel Beam ◽  
Depth Of Field ◽  
Optical Coherence ◽  
Ultrahigh Resolution ◽  
Extended Depth Of Field
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