Computational Optical Sensing and Imaging (COSI)

22 June 2014 – 26 June 2014 OSA Virtual Event

COSI consists of topics that range from theoretical to experimental demonstration and verification of the latest advances in computation imaging research. This meeting covers subject matter in fundamental physics, numerical methods and physical hardware that has led to significant improvements in the fields of imaging and sensing for medical, defense, homeland security, inspection, testing applications.Topics in this meeting include research in wave-front coding, light field sensing, compressive optical sensing, tomographic imaging, structured illumination imaging, digital holography, SAR, lens-less imaging, ghost imaging, blind deconvolution, point spread function engineering, digital/optical super-resolution, unusual form-factor cameras, synthetic aperture optical systems, stable inversion of ill-posed problems , development of Image quality analysis/metrics, complexities and uncertainties in image/signal formation, regularization concepts (for example: Total Variation, Bayesian, sparsity) to mention a few representative areas.

COSI is an important discipline being applied to solve numerous problems in modern optics and the techniques developed in this field have already been incorporated in to numerous commercial products.  This meeting places particular emphasis on integrated analysis of physical layer measurement and digital layer processing. In contrast with the conventional model of a “digital image” as simply a discretely sampled version of an analog image, COSI considers advanced opportunities for image data coding and decoding in optical, electronic and software layers.

Topic Categories

  • Wavefront coding
  • Light-field sensing
  • Compressive sensing
  • Tomographic imaging
  • Structured illumination
  • Digital holography
  • Synthetic aperture imaging
  • Interfereometric imaging measurements and reconstruction
  • Phase retrieval
  • Lensless imaging
  • Computational spectroscopy and spectral imaging
  • Ghost imaging
  • Blind deconvolution and phase diversity
  • Point- spread function engineering
  • Digital/optical super-resolution
  • Unusual form-factor cameras
  • Spectral unmixing
  • Signal detection and estimation
  • Stable inversion of ill-posed problems
  • Development of image quality metrics and analysis techniques
David Brady, Duke University, United States, Lens and Code Design for Focal, Spectral, Temporal and Exposure Tomography, Plenary

Mark Anastasio, Washington University in St Louis, United States, Recent Advancements in Photoacoustic Tomography Image Reconstruction, Invited

Matthew Bergkoetter, University of Rochester, United States, Optical Propagations with Arbitrary Sampling Periods, Invited

Hui Cao, Yale University , United States, Using Speckle to Build Compact, High-Resolution Spectrometers, Invited

P. Scott Carney, Univ of Illinois at Urbana-Champaign, United States, Synthetic Optical Holography, Invited

Tomas Cizmar, University of Dundee, United Kingdom, Photonics in Disordered Environments and Fibre Based Imaging, Invited

Palle Dinesen, AAC Technologies, Denmark, Design and Manufacturing of Lenses for Array Cameras in Mobile Phones, Invited

Dror Fixler, Bar-Ilan University, Israel, A New Medical-diagnostic Tool Based on Computational Spectral Imaging of the Diffusion Reflection Measurement, Invited

Hong Hua, University of Arizona, United States, Wearable Displays using Freeform Optics , Invited

James Leger, University of Minnesota Twin Cities, United States, Extreme Imaging Architectures, Invited

Abhijit Mahalanobis, Lockheed Martin Corporation, United States, Recent Results of Infra-red Compressive Sensing, Invited

Giacomo Oliveri, Universita degli Studi di Trento, Italy, Compressive Sensing Methods Applied to Inverse Imaging Problems, Invited

Joseph O'Sullivan, Washington University in St Louis, United States, System Design for Joint Attenuation and Scatter Imaging for Baggage Inspection, Invited

Rafael Piestun, University of Colorado at Boulder, United States, Non-invasive Imaging Through a Scattering Wall, Invited

Sudhakar Prasad, University of New Mexico, United States, Angular Momentum, PSF Rotation, and 3D Source Localization: A Statistical Performance Analysis , Invited

Dennis Prather, University of Delaware, United States, Millimeterwave Imaging, from Amplifiers to Algorithms, Invited

John Rodenburg, University of Sheffield, United Kingdom, Ptychography: Lensless High-resolution Phase-sensitive Imaging, Invited

Ethan Schonbrun, Harvard University, United States, Optofluidic Cytometry, Invited

Daniel Smith, Nikon Research Corporation of America, United States, Lithography Illumination Optics , Invited

David Stork, Rambus Inc., United States, Joint Optics/signal Processing Co-design for Diffractive Computational Sensing and Imaging, Invited

Kartik Venkataraman, Pelican Imaging, United States, Multi-Lens Aperture Systems: Motivation, Challenges, and Practical Solutions, Invited

Gordon Wetzstein, Massachusetts Institute of Technology, United States, Computational 3D displays , Invited


Amit Ashok, University of Arizona, United States
Jason Fleischer, Princeton University, United States
Predrag Milojkovic, US Army Research Laboratory, United States

Program Chair

Eddie Jacobs, University of Memphis, United States
Sapna Shroff, Light, United States


David Brady, Duke University, United States
Marc Christensen, Southern Methodist University, United States
Christy Fernandez-Cull, Massachusetts Inst of Tech Lincoln Lab, United States
Michael Fiddy, Univ of North Carolina at Charlotte, United States
Michael Gehm, Duke University, United States
Andrew Harvey, University of Glasgow, United Kingdom
Kedar Khare, Indian Institute of Technology, Delhi, India
Kenneth Kubala, FiveFocal, LLC, United States
Joseph Mait, US Army Research Laboratory, United States
Ram Narayanswamy, Intel Corp., United States
Mark Allen Neifeld, University of Arizona, United States
Chrysanthe Preza, University of Memphis, United States
Jun Tanida, Osaka University, Japan
Laura Waller, University of California Berkeley, United States
Zeev Zalevsky, Bar-Ilan University, Israel

Congress Special Events

General Session with Plenary Speakers
Monday, 23 June, 08:00 - 10:00
Salons II & IIII
The Joint Plenary Session will feature a speaker from each of the three topical meetings (COSI, IODC, and OF&T).  The Plenary Presenters are listed below.

How to Measure Everything, David Brady, Duke University, USA
Finding Life in the Universe: The Colossus Project, Jeff R. Kuhn; Institute for Astronomy, University of Hawaii, USA
Will Computational Imaging Change Lens Design?, Kevin P. Thompson, Synopsys, Inc., USA

Welcome Reception and Luau
Monday, 23 June, 18:00 – 20:00
The Coconut Grove at The Fairmont Orchid
Join us in the Coconut Grove for some of Hawaii’s best entertainment and island food. The reception luau is open to committee/presenting author/student and full conference attendees. Conference attendees may purchase extra tickets for their guest.
Joint Poster Session
Tuesday, 24 June, 18:00 - 20:00
Grand Ballroom Salon I & Pre-Function
Posters are an integral part of the technical program and offer a unique networking opportunity, where presenters can discuss their results one-to-one with interested parties. Each author is provided with a 4 ft. × 8 ft. (1.22 m × 2.44 m) board on which to display the summary and results of his or her paper.

IODC Panel Discussion: “I Wish They Wouldn’t do That”: Seeing Design/Fabrication from the Other Point of View”
Tuesday, 24 June,17:15 (Immediately following presentations in IODC Postdeadline Session)
Grand Ballroom Salon III
With a panel of experts from the optical fabrication industry and a room full of optical designers, a forum is provided for discussion of topics relating to basic design philosophy, the selection of tolerances, the communication of tolerances, and the communication of what is easy to achieve and what is hard to achieve.  (Do designers really place beamsplitters at 45 degrees just because the drafting table has a click-stop at 45 degrees? Are fabricators telling us it is hard when it is really easy, just to make life simple for themselves?)  Bring your long-standing complaints with you to this session, but also be prepared to see the problem from the other point of view!

  • Jessica DeGroote Nelson, Optimax Systems, USA
  • Tolis Deslis, Jenoptik Optical Systems, USA
  • Cody Kreischer, Kreischer Optics, USA
  • Marc Tricard, Zygo Corp., USA
  • Paul Dumas, QED Technologies, Inc., USA

Michael Kidger Memorial Scholarship Award and Illumination Problems and Lens Design Presentations
Wednesday, 25 June, 18:00 - 20:00
Salon III
The Michael Kidger Memorial Scholarship Award will be presented to Brian Wheelwright prior to the Lens Design and Illumination Problems Presentations in Salon III.  The 2014 Kidger scholarship award will be presented to Brian by Kevin P Thompson, Synopsys Inc. USA. The award consists of a $5,000 cash grant supported by the Michael Kidger Memorial Scholarship Fund.

Following the presentation of the Kidger Award, the winners of the Illumination and Lens Design Problems will present their solutions.


2013 Best Paper Award Winners

Best Paper Award 1st Place - Patrick Llul, Duke Univ., USA - Compressive Sensing for Video Using a Passive Coding Element

Best Paper Award 2nd Place - Antonio Caravaca, Univ. of Colorado at Boulder, USA - Real time focusing through a perturbed multimode fiber

Best Paper Award 3rd Place - Stephen Olivas - Univ. of San Diego, USA - Single Pixel Compressive Imaging of Laboratory and Natural Light Scenes

Best Early Career Paper Award - Patrick Gill, Rambus Labs, USA - Lensless Ultra-Miniature Imagers Using Odd-Symmetry Spiral Phase Gratings

Best Poster Award - James Huang, Univ. of Arizona, USA - Information Optimal Adaptive Measurement Design For Compressive Imaging

Three winners have been selected to receive the COSI Best Student Paper Award by the COSI Program Committee.  Papers were judged on the novelty of the proposed research idea; the significance and breadth of its potential impact; and the feasibility to translate to real-world operating conditions. 

Award will be presented during session CTu4B ● COSI Best Student Paper Award Presentation and Postdeadline Session
Tuesday, 24 June, 16:30 – 17:15,
Grand Ballroom Salon III

The first place award winner will receive $500.  The second and third place winners will receive $450 each.  COSI extends special thanks to Aptina for their support.

Award Winners

1st Place: CTh1C.5 ● Fiber Bundle Image Relay for Monocentric Lenses, presented by Stephen Olivas, Univ. of California San Diego, USA

2nd Place: CM2D.3 ● Compressive Extended Depth of Field Using Image Space Coding, presented by Patrick Llull, Duke Univ., USA

3rd Place: CTh3C.2 ● Quantitative Phase Imaging using Entangled Photons, presented by Chien-Hung Lu, Princeton Univ., USA
How to Measure Everything, David Brady, Duke University, USA

Abstract: The ideal camera measures wide-field diffraction-limited images of the full focal stack with photon-limited spectral and temporal resolution and infinite dynamic range. Multiscale optics and compressive coding may bring practical cameras close to this limit.

Bio: David Brady is the Michael J. Fitzpatrick Endowed Professor of Photonics at Duke University, where he leads the Duke Imaging and Spectroscopy Program. Brady's contributions to computational imaging systems include lensless white light tomography, optical projection tomography, compressive holography, reference structure tomography, coded aperture snapshot spectral imaging and coded aperture x-ray scatter imaging. He is the principal investigator for the DARPA AWARE Wide Field of View project, which aims to build compact streaming gigapixel scale imagers and the DARPA Knowledge Enhanced Exapixel Photography project, which focuses on code design for high pixel count spectral imagers. He is the author of Optical Imaging and Spectroscopy  (Wiley-OSA, 2009) and is a Fellow of IEEE, SPIE and OSA and was the 2013 winner of the SPIE Dennis Gabor Award.

Finding Life in the Universe: The Colossus Project, Jeff R. Kuhn; Institute for Astronomy, University of Hawaii, USA

Abstract: Work progresses on the design of a sixty by 8-meter diameter telescope. This 77+ m diameter, optically phase controlled, almost-filled aperture interferometer can see atmospheric biomarkers and even the thermal footprints from Earth-like civilizations on exoplanets. This talk describes the motivation, enabling new technologies, and status of the group now planning the Colossus telescope.

Bio: Jeff Kuhn is an optical scientist and teacher. He earned his physics PhD from Princeton, and spent the last three decades as a professor of physics, or astrophysics at: Princeton, Michigan State, and the University of Hawaii. He was science head for the National Solar Observatory at Sunspot NM. and the director of the Institute for Astronomy on Maui for a decade. He's written over 200 papers on subjects ranging from gravitational radiation to novel instrumentation.  He has been the recipient of a Sloan Foundation Grant and a Senior Humboldt Prize from Germany.  Some of the optical concepts he's written about are now core technologies for telescopes under construction, like the Advanced Technology Solar Telescope on Haleakala and the Giant Magellan Telescope. He is a founder of the Colossus Project -- a public and private consortium now designing an instrument to find Earth-like civilizations in the galactic solar neighborhood. Jeff lives on Maui where he researches and teaches at the Institute for Astronomy, University of Hawaii.

Will Computational Imaging Change Lens Design?, Kevin P. Thompson, Synopsys, Inc., USA
Abstract: Computational imaging is changing the landscape in many dimensions.  If extended depth of focus is leveraged to allow curved image surfaces, the lens design environment changes dramatically.  This talk will highlight this potential new world.
Bio: Kevin P. Thompson, Ph.D. is the Group Director of R&D/Optics at Synopsys Inc. and a Visiting Scientist at the University of Rochester, Institute of Optics.  Dr. Thompson’s primary technical expertise is as a lens designer and aberration theorist, particularly for optical systems without symmetry including head worn displays, EUV lithography projection and illumination optics, and advanced reconnaissance systems.  Dr. Thompson joined Optical Research Associates (now part of Synopsys) as an optical designer in 1986 after 5 years with the optical design group at Perkin-Elmer's government division.  Kevin conducted his PhD research with Prof. Roland Shack at the College of Optical Sciences where he developed Nodal Aberration Theory (NAT), the optical aberration field descriptions for optical systems without positional symmetry, which was recently discovered to also be the aberration theory for the emerging field of freeform optics.  Kevin is an OSA Fellow, a Fellow of the SPIE, and the 2013 recipient of the 2013 SPIE A.E. Conrady award.

2014 Short Course Schedule

Sunday, 22 June, 09:00-12:00
SC415 Making Sense of Waviness and Roughness on Optics
SC418 Optical Materials, Fabrication and the Testing for the Optical Engineer

Sunday, 22 June, 17:00-20:00
SC417 Evaluating Aspheres for Manufacturability

2014 Short Course Descriptions

SC415 Making Sense of Waviness and Roughness on Optics

Dave Aikens, Savvy Optics Corp, USA
Sunday, 22 June, 09:00 - 12:00

Course Description
The surface texture of a polished optical surface is an important, if misunderstood, surface property. This course is designed to bring photonics personnel up to an immediate working knowledge on surface texture specifications and the impact surface roughness and waviness can have on an optical system.  Surface roughness causes scatter and system transmission loss, while waviness and mid-spatial frequency ripple can cause loss of resolution, image quality, veiling glare, beam modulation and a host of other issues.
Until recently, surface texture could be safely described by a single number, RMS roughness, following MIL-STD-10A, since most polished optical surfaces were manufactured using the same slurry-pitch process that had existed for decades. In the past 30 years, however, new manufacturing technologies have evolved using molding, diamond turning, synthetic lap polishing and deterministic figuring which have dramatically altered the surface finish of optics. In order to control the resultant surface texture errors, new specifications like gradients, correlation values, PSDs and MSF waviness specifications have been introduced. Most users do not completely understand these new notations however, and the meaning of even a simple RMS roughness specification has become obscure, or even meaningless.
The course defines the terms and parameters used to control surface texture in the modern optical manufacturing world. The potential performance impact of surface texture errors will be covered, and some specific case studies will be used to show the impact of various amplitudes of these errors on precision optical instrument performance. The national and international standards are introduced, and the derivation of meaningful specification for texture and waviness for common applications is discussed. Finally, the identification, measurement and reduction of these manufacturing errors is treated.

Benefits and Learning Objectives
This course should enable participants to:
  • Describe the surface texture of a polished optical surface based on its specifications
  • Understand the meaning of a Power Spectral Density plot
  • Quantify the requirements for surface texture using PSD and gradient notations
  • Predict the impact of mid-spatial frequency ripple and roughness on system performance
  • Compose a meaningful surface texture specification for both waviness and roughness
  • Identify waviness surface errors in measurement data
Intended Audience
This course is intended for engineers, managers and experienced technicians working in optical design, manufacturing, metrology and quality control and assurance.  Anyone who is responsible for specifying or interpreting surface roughness and waviness specifications will find it extremely useful. Some understanding of algebra is beneficial. 

Dave Aikens has been writing on the subject of surface texture and ripple for more than 20 years and is one of the foremost experts on optics mid-spatial frequency waviness today.  Dave is President and founder of Savvy Optics Corp., is the head of the American delegation to ISO TC 172 SC1, and is Executive Director of the Optics and Electro-Optics Standards Council. He also served as the project manager for the current ISO surface texture notation standards for optics.

SC417 Evaluating Aspheres for Manufacturability

Paul Dumas, QED Technologies, Inc., USA
Sunday, 22 June, 17:00 -20:00

Course Level
Advanced Beginner
Course Description
This course provides an overview of how aspheric surfaces are designed, manufactured, and measured. The primary goal of this course is to teach how to determine whether a particular aspheric surface design will be difficult to make and/or test. This will facilitate cost/performance trade off discussions between designers, fabricators, and metrologists.

We will begin with a discussion of what an asphere is and how they benefit optical designs. Next we will explain various asphere geometry characteristics, especially how to evaluate local curvature plots. We will also review flaws of the standard polynomial representation, and how the Forbes polynomials can simplify asphere analysis. Then we will discuss how various specifications (such as figure error and local slope) can influence the difficulty of manufacturing an asphere. Optical assembly tolerances, however, are beyond the scope of this course - we will focus on individual elements (lenses / mirrors).

The latter half of the course will focus on the more common technologies used to generate, polish, and/or measure aspheric surfaces (e.g. diamond turning, glass molding, pad polishing, interferometry). We'll give an overview of a few generic manufacturing processes (e.g. generate-polish-measure). Then we'll review the main strengths and weaknesses of each technology in the context of cost-effective asphere manufacturing.
Benefits and Learning Objectives
This course will enable you to:

  • Identify the most important metrics of aspheric shape that relate to manufacturability
  • Evaluate key characteristics of an aspheric surface to determine whether an asphere will be difficult to manufacture and/or test
  • Describe how Forbes polynomials can simplify asphere interpretation
  • Interpret an aspheric prescription from an optical component print
  • List common ways aspheres are manufactured and tested
  • Answer the question "Which technologies are best suited to manufacture this asphere?"
Intended Audience
This material is intended for engineers, optical designers, and managers who want an overview of the benefits and challenges associated with manufacturing aspheric surfaces for use in optical systems. It will be of benefit for specialists in a particular area (e.g. design, manufacturing, or testing), as it will give a broad overview in all three of those areas with a focus on aspheric surfaces. It is intended to facilitate communication between designers, fabricators, and testers of aspheric surfaces.
Instructor Biography
Paul Dumas is one of the founding members of QED Technologies, where he has developed software and processes for aspheric optical manufacturing.  He received his B.S. and M.S. in Optics from The Institute of Optics at the University of Rochester. In the early 1990s, and since has managed various engineering groups throughout the company's history, including Software, Systems, and Applications.

SC418 Optical Materials, Fabrication and the Testing for the Optical Engineer

Jessica Nelson, Optimax SI, USA
Sunday, 22 June, 09:00-12:00

This course is designed to give the optical engineer or lens designer an introduction to the technologies and techniques of optical materials, fabrication and testing.  This knowledge will help the optical engineer understand which optical specifications/tolerances lead to more cost effective optical components. Topics covered include optical materials, traditional, CNC and novel optical fabrication technologies, surface testing and fabrication tolerances. 

Course Level

Benefits and Learning Objectives

This course will enable you to:

  • Identify key mechanical, chemical and thermal properties of optical materials (glass, crystals and ceramics) and how they affect the optical system performance and cost of optical components
  • Understand the basics of optical fabrication
  • Define meaningful surface tolerances
  • Communicate with optical fabricators
  • Design optical components that are able to be manufactured and measured using state of the art optical fabrication technologies
Intended Audience
Optical engineers, lens designers, or managers who wish to learn more about how optical materials, fabrication and testing affect the optical designer. Undergraduate training in engineering or science is assumed.
Jessica DeGroote Nelson is the R&D manager and scientist at Optimax Systems, Inc.  She specializes in optical materials and fabrication processes.  She is an adjunct faculty member at The Institute of Optics at the University of Rochester teaching an undergraduate course on Optical Fabrication and Testing, and has given several guest lectures on optical metrology methods.  She earned a Ph.D. in Optics at The Institute of Optics at the University and SPIE.

OSA - The Optical Society