Design of microcamera for field curvature and distortion correction in monocentric multiscale foveated imaging system

Abstract To realize large field of view (FOV) and high-resolution dynamic gaze of the moving target, this paper proposes the monocentric multiscale foveated (MMF) imaging system based on monocentric multiscale design and foveated imaging. First we present the MMF imaging system concept. Then we analyze large field curvature and distortion of the secondary image when the spherical intermediate image produced by the primary monocentric objective lens is relayed by the microcameras. Further a type of zoom endoscope objective lens is selected as the initial structure and optimized to minimize the field curvature and distortion with ZEMAX optical design software. The simulation results show that the maximum field curvature in full field of view is below 0.25 mm and the maximum distortion in full field of view is below 0.6%, which can meet the requirements of the microcamera in the proposed MMF imaging system. In addition, a simple doublet is used to design the foveated imaging system. Results of the microcamera together with the foveated imager compose the results of the whole MMF imaging system.

[1]  Oliver S Cossairt,et al.  Scaling law for computational imaging using spherical optics. , 2011, Journal of the Optical Society of America. A, Optics, image science, and vision.

[2]  Shree K. Nayar,et al.  Gigapixel Computational Imaging , 2011, 2011 IEEE International Conference on Computational Photography (ICCP).

[3]  Marc Levoy,et al.  High performance imaging using large camera arrays , 2005, SIGGRAPH 2005.

[4]  Nathan Hagen,et al.  Multiscale lens design. , 2009, Optics express.

[5]  D R Golish,et al.  Development of a scalable image formation pipeline for multiscale gigapixel photography. , 2012, Optics express.

[6]  A W Lohmann,et al.  Scaling laws for lens systems. , 1989, Applied optics.

[7]  David J. Brady,et al.  Multiscale gigapixel photography , 2012, Nature.

[8]  David J. Brady,et al.  Engineering a gigapixel monocentric multiscale camera , 2012 .

[9]  D. Brady,et al.  Optomechanical design of multiscale gigapixel digital camera. , 2013, Applied optics.

[10]  Daniel L Marks,et al.  Oversampled triangulation of AWARE-10 monocentric ball lens using an auto-stigmatic microscope. , 2013, Optics express.

[11]  Daniel L Marks,et al.  Design and scaling of monocentric multiscale imagers. , 2012, Applied optics.

[12]  Byoungho Lee,et al.  Real-time integral imaging system for light field microscopy. , 2014, Optics express.

[13]  John A. Antoniades,et al.  Autonomous real-time ground ubiquitous surveillance-imaging system (ARGUS-IS) , 2008, SPIE Defense + Commercial Sensing.

[14]  Douglas Young,et al.  A 4-side tileable back illuminated 3D-integrated Mpixel CMOS image sensor , 2009, 2009 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[15]  Ty Martinez,et al.  Foveated imaging demonstration. , 2002, Optics express.

[16]  Illah Nourbakhsh,et al.  Timelapse GigaPan: Capturing, Sharing, and Exploring Timelapse Gigapixel Imagery , 2010 .

[17]  Byoungho Lee,et al.  Real-time depth controllable integral imaging pickup and reconstruction method with a light field camera. , 2015, Applied optics.

[18]  E. Riseman,et al.  Panoramic virtual stereo vision of cooperative mobile robots for localizing 3D moving objects , 2000, Proceedings IEEE Workshop on Omnidirectional Vision (Cat. No.PR00704).

[19]  Robert E. Fischer,et al.  Optical System Design: Second Edition , 2007 .

[20]  Sheng Liu,et al.  Dual-sensor foveated imaging system. , 2008, Applied optics.

[21]  M E Gehm,et al.  Characterization of the AWARE 10 two-gigapixel wide-field-of-view visible imager. , 2014, Applied optics.

[22]  Predrag Milojkovic,et al.  Review of multiscale optical design. , 2015, Applied optics.

[23]  S. Restaino,et al.  Foveated, wide field-of-view imaging system using a liquid crystal spatial light modulator. , 2001, Optics express.

[24]  Daniel L Marks,et al.  Optical performance test and validation of microcameras in multiscale, gigapixel imagers. , 2014, Optics express.