1. Sarah Frisken
Education
1991
1986
1985
Carnegie Mellon University, Pittsburgh, PA
Ph.D. Electrical and Computer Engineering
Ph.D. dissertation: “Modeling the 3D Imaging Properties of the Fluorescence Light
Microscope”
University of Wisconsin, Madison WI
M.Sc. Electrical and Computer Engineering
Masters thesis: “A 64-Solenoid Haptic Display Device for the Blind”
Queens University, Kingston, ON, Canada
B.Sc. Mathematics and Engineering
Skills
Inventor, problem solver, entrepreneur
Researcher, scientist, engineer
Educator, teacher, life-long learner
Software architect, designer, implementer
UI design and implementation
Computer graphics, computer simulation, scientific visualization, haptics
Medical applications, medical image segmentation and visualization
Image and signal processing
C, C++, Objective C, iOS, OpenGL, OpenGLES, Xcode, Visual Studio, Win32
Experience
2016 – present Brigham and Women’s Hospital, Department of Radiology, and
Harvard Medical School
Research Associate
Working with neurosurgeon Alexandra Golby in the AMIGO suite (Advanced
Multi-modal Image Guided Operating suite) and researchers in the Brigham and
Women's Surgical Planning Lab to investigate and develop new technologies
aimed at improving surgical outcomes for brain cancer patients and to transfer
these technologies to clinical practice.
2014 – 2015 Made with Mischief (subsidiary of The Foundry, Visionmongers)
Founder and Chief Scientist
Research and advanced development on the Mischief product line (see below).

2. 2008 – 2014 61 Solutions, Inc.
Founder, President and CEO
Mischief. Founder, chief architect and developer of Mischief, a commercial
software application for digital sketching, drawing and painting. As the only full-
time employee, I also designed and implemented the web site, handled
marketing, customer service, and finances. Mischief was sold to The Foundry,
Visionmongers in 2014. At that time, we had more than 2000 paying customers
and more than 10,000 people had downloaded a free version of the application.
See www.madewithmischief.com.
Consultant for Disney Research. Determined requirements for digital drawing and
animation within various business units at Disney. Researched new technologies
for processing sampled pen-based input, representing drawn strokes, and fast
rendering. Built several research prototypes of drawing applications. Architected
and developed the Sketch Drawing Engine, a software engine for sketching,
drawing and painting applications.
Consultant for Mitsubishi Electric Research Laboratories. Studied the
requirements for a high accuracy simulator for NC Milling in computer-aided
manufacturing (CAM). Researched and developed a new representation
(Composite Adaptively Sampled Distance Fields), to satisfy these requirements.
Architected and implemented a prototype NC Milling simulator with
unprecedented precision, very small files sizes for the simulated models, and fast
rendering times. This work has been integrated into commercial systems.
2005 – 2009 Tufts University
Full Professor, Department of Computer Science
Teaching. Computer Graphics, Advanced Computer Graphics, Implicit Modeling,
and Physics-based Graphics. Lead a computer graphics research and reading
seminar group. Supervised PhD, masters and undergraduate research and
theses.
Research. Fast curve fitting using ADFs, implicit modeling for virtual creature
design and construction, virtual terrain modeling, stylized stroke fonts for compact
representation of CJK fonts, medical image segmentation, aneurysm detection.
Service. Graduate committee, university diversity committee.
1993 – 2004 Mitsubishi Electric Research Laboratories (MERL)
Distinguished Research Scientist and Advisor to Management
Adaptively Sampled Distance Fields (ADFs). Researched and developed ADFs, a
new shape representation for computer graphics. Fundamental research has
resulted in several publications and a comprehensive patent portfolio. Contributed
to the definition, architecture, design, and implementation of a product-worthy
software library for ADFs which we have used to explore numerous applications
of ADFs including digital sculpting, milling, constructing 3D models from range
images, and modeling soft-body impact. The library includes modules for fast tiled
generation of ADFs, interactive CSG editing, real-time rendering, and fast
triangulation. ADFs can be generated from stock distance functions, triangle
models, and range images. Editing can be performed for discrete edits and for
tool paths swept along straight lines and Bezier curves. ADF rendering can be
achieved via asynchronous adaptive ray casting, point-based rendering or
rendering with standard hardware after conversion of ADFs to triangles.

3. Digital Font Representation. Contributed to the definition, architecture, design,
and implementation of a new framework for representing, rendering, editing, and
animating type. This framework, entitled Saffron, is based on Adaptively Sampled
Distance Fields (ADFs), which provide an ideal computational substrate for
performing these operations. Saffron has been licensed to Adobe and Monotype
Imaging and is used as the type rendering engine in Adobe Flash and many
mobile phones and tablets including the Amazon Kindle.
Features of Saffron include: scalable type, bi-quadratic ADFs as the base
representation, extensions to bi-quadratic ADFs that provide an exact and
succinct representation of corners, new anti-aliasing methods which exploit the
distance field to achieve superior rendering quality and speed for both static and
animated type, a cell-based rendering method amenable to hardware, an
automatic hinting strategy which mitigates the labor-intensive manual hinting
process of current methods, LCD rendering which exploits the addressable
colored sub-pixels of LCDs to increase the effective resolution of the display, user
tunable contrast for increased reading comfort, superior Chinese-Japanese-
Korean (CJK) rendering, automatic input from existing legacy fonts, a font editor
with a seamless interface between curve-based, stroke-based, and component-
based design paradigms, and a toolkit for creating special effects (e.g., collision
detection, soft-body deformation on impact, and fluid dynamics) for animations
with type.
NOVA. Provided several animation sequences of molecules and molecular
interactions to NOVA for an upcoming documentary, “The Search for a Safe
Cigarette” produced by Carl Charleson and scheduled for the season opener,
Oct. 2, 2001 (see www.pbs.org/nova/cigarette). Molecules were represented as
ADFs, volumetrically rendered and shaded to produce semi-transparent images
with volumetric effects from distance-based turbulence. More than 100,000
frames were rendered, requiring 50M GFLOPS on a Boewulf cluster.
Human Knee Simulation. Coordinated a multi-institutional, multi-disciplinary
project to simulate arthroscopic knee surgery. Project leader, algorithm designer,
software system designer and implementer. Demonstrated the simulator at
COMDEX and IEEE Visualization’98. The system included high-quality rendering
of the knee model from a virtual camera under user control, a haptic system
providing force feedback with 5 degrees of freedom and a volumetric knee model
obtained from high resolution MRI data, including deformable cartilage tissue that
could be probed by the user. The interface to the virtual knee model was provided
by a surgical probe augmented with force feedback and an instrumented
arthroscope for controlling the virtual camera. This system was featured in a key-
note talk by Jim Foley (co-author of “Computer Graphics: Principles and Practice”
and then MERL Director) at IEEE Visualization’98, prompting a comment from
Fred Brooks (pioneer in virtual reality and medical applications of computer
graphics among many other accomplishments) that we had one of the best
programs in surgical simulation that he had seen.
Volume Graphics. Developed new algorithms for manipulating and processing
volumetric objects including 3D ChainMail, a method for rapidly deforming a
volumetric object using geometric constraints, and methods for cutting, carving,
and tearing volumetric objects. Implemented interactive, graphics-based
applications of these methods in C and Tcl/TK for demonstrating their potential.
Developed and implemented the SurfaceNets algorithm, a method for generating
smooth, accurate triangle models from binary sampled data. Extended
SurfaceNets to generate triangle models from multiple binary volumes, from
grayscale data, and from adaptively sampled distance fields.
Real-time Volume Rendering. Introduced volume rendering and volume graphics
to MERL. Implemented a volume rendering system that was used as a testbed for

4. early research and development. Helped implement and test a parallel software
volume renderer. Participated in specifying a hardware-based volume rendering
system which eventually led to the creation of a spin-off company, RTViz, recently
bought-out by TeraRecon. Provided advice and consulting to RTViz and
evangelized volume rendering within Mitsubishi Electric and externally, including
participating in the production of 2 promotional video tapes during early phases of
the spin-off.
Children’s Hospital Project. Member of a collaborative project between MERL and
Children’s Hospital in Boston with the goal of improving hospital experiences for
pediatric patients and their families. Interviewed patients, family members, social
workers, psychiatrists, psychologists, surgeons, pediatricians, and nurses to
develop a better understanding of needs. Explored several potential areas where
we could make an impact, eventually focusing on a web-based system to provide
a collection of activities and a place for patients and their families to share
experiences. This system was eventually implemented after I left the project and
a version of the system is in use today at Children’s Hospital.
Graduate student supervisor. Thesis committee member for Delphine Duford,
Ecole Polytechnique, Joe Samosky, MIT, Andy Mor, CMU. External advisor for
Nikhil Gagvani, Rutgers. Supervised several student interns including Mannuel
Sosa, Tina Kapur, Joe Samosky, Andy Mor, Marcus Schill, Juliet Armstrong,
Delphine Duford, Mike Leventon, Stefan Roth, Jackson Pope, Elena Jakubiack.
1998 – 2000 Massachusetts Institute of Technology
Research Affiliate at the Artificial Intelligence Laboratory
Appointed research affiliate in conjunction with research on the Human Knee
Simulation project and graduate student supervising.
1992 – 1993 Carnegie Mellon University
Research Scientist, Robotics Institute
Co-founded the Center for Medical Robotics and Computer-Assisted Surgery with
Professor Takeo Kanade and Dr. Tony DiGioia. Worked to establish connections
between the university and local hospitals. Helped write proposals to fund
projects in the new center.
Conducted research in medical imaging, segmentation and surgical simulation.
Wrote software for volume rendering 3D medical data. Attended surgery to
observe orthopedic hip replacement, laparoscopic gall bladder removal and
endoscopic sinus surgery. Supervised and worked with students in the areas of
computer-assisted surgery and visualization of electromyogram (EMG) data.
1991 – 1992 Massachusetts Institute of Technology
Postdoctoral Fellow, Neuman Biomechanics Laboratory
Developed methods for automatic segmentation of high-noise, low-resolution MRI
images acquired from a (then) new high-speed MRI magnet at Massachusetts
General Hospital. Helped to perform experiments to study the effect of muscle
fatigue on MRI signal intensity and developed algorithms to automatically
segment individual muscles to facilitate data analysis.
Coordinated and wrote an NIH proposal for a multi-institution, multi-disciplinary
project to research and develop a software system to model the human knee. The
project goal was to build an interactive computer simulation for patient education.
The proposal was given high praise for technical merit and scope but was not
funded because it did not match the funding agency’s focus at that time.

5. 1990 – 1991 Carnegie Mellon University
Research Fellow, Engineering Design and Research Center
Investigated the use of computer-assisted design and manufacturing of custom
implants for knee and hip surgery. Was part of a collaborative team including
researchers from Carnegie Mellon University, an orthopedic surgeon at
Shadyside Hospital and an industrial partner. Helped to research the technical
requirements of the project and write a proposal for funding.
Other Research and Teaching Experience
1989 Teaching Assistant, Electrical and Computer Engineering Department, Carnegie
Mellon University. Graduate level course on advanced digital signal processing
1986 – 1990 Research Assistant, Center for Fluorescence Research, Carnegie Mellon
University. Theoretical and experimental analysis of 3D imaging properties of the
light microscope
1985 -- 1986 Research Assistant, Biomedical Engineering, University of Wisconsin. Developed
a PC-controlled haptic display device for the blind including the hardware
interface card and software driver
Summer, 1985 International Engineering and Sciences Exchange Student, Oulu, Finland.
Technical analysis and translation at a medical devices company
Summer, 1984 National Science and Engineering Research Council of Canada (NSERC)
Summer Research Fellow, Fermilab National Laboratory, Chicago, IL. Helped
with set up and maintenance on a particle detection system for a high-energy
particle physics experiment
Summer, 1983 NSERC Summer Research Fellow, Solar Energy Laboratory, Mechanical
Engineering, Queens University. Designed and built a working model to
demonstrate the concepts behind solar energy panels
Summer, 1982 NSERC Summer Research Fellow, Dept. of Aeronautics and Astronautics,
University of Toronto. Built test specimens of composite materials (graphite,
kevlar, and boron composite fibers) for LDEF, Long Duration Exposure Flight, a
satellite that was launched and later retrieved by the US Space Shuttle.
Performed graphing and analysis of results from finite element modeling of
layered composite materials
Papers
Sullivan, Erdim, Perry, and Frisken, “High Accuracy NC Milling Simulation using
Composite Adaptively Sampled Distance Fields”, Computer Aided Design, 44, pp.
522-536, 2012.
Lauric, Miller, Frisken, and Malek, “Automated Detection of Intracranial
Aneurysms Based on Parent Vessel 3D Analysis”, Medical Image Analysis, 14,
pp. 149-159, 2010.
Frisken, “Efficient Curve Fitting”, Journal of Graphics Tools, 13(2), pp. 35-37,
2008.

6. Jakubiak Hutchinson, Frisken, and Perry, “Proximity Cluster Trees”, Journal of
Graphics Tools, 13 (1), pp.57-69, 2008.
Frisken, “Sketching Curves with Immediate Feedback”, presented at SIGGRAPH
2007, Sketches and Applications (sap-0360).
Frisken and Perry, “Designing with Distance Fields”, Shape Modeling
International, pp. 58-59, 2005.
Brand, Frisken, Lesh, Marks, Nikovski, Perry, Yedidia, “Theory and Applied
Computing: Observations and Anectodes”, MFCS, pp. 106-118, 2004.
Perry and Frisken, “A New Framework for Representing, Rendering, Editing, and
Animating Type”, Submitted for review May 2003.
Frisken and Perry, “Simple and Efficient Traversal Methods for Quadtrees and
Octrees”, Journal of Graphics Tools, 7(3), 2002.
Frisken and Perry, “Efficient Estimation of 3D Euclidean Distance Fields from 2D
Range Images”, Proc. IEEE/SIGGRAPH Symposium on Volume Visualization and
Graphics, 2002.
Perry and Frisken, “Kizamu: A System for Sculpting Digital Characters”, Proc.
SIGGRAPH 2001, pp. 47-56, 2001.
Frisken and Perry, “A Computationally Efficient Framework for Modeling Soft-
Body Impact”, presented at SIGGRAPH 2001, Sketches and Applications, also
MERL Technical Report, TR2001-11, 2001.
Frisken and Perry, “Computing 3D Geometry Directly from Range Images”,
presented at SIGGRAPH 2001, Sketches and Applications, also MERL Technical
Report, TR2001-10, 2001.
Pope, Frisken and Perry, “Dynamic Meshing Using Adaptively Sampled Distance
Fields”, presented at SIGGRAPH 2001, Sketches and Applications, also MERL
Technical Report, TR2001-13, 2001.
Perry and Frisken, “A New Framework For Non-Photorealistic Rendering”, MERL
Technical Report, TR2001-12, 2001.
Perry and Frisken, “A New Representation for Device Color Gamuts”, MERL
Technical Report, TR2001-09, 2001.
Frisken, Perry, Rockwood, Jones, “Adaptively Sampled Distance Fields: A
General Representation of Shape for Computer Graphics”, Proc. SIGGRAPH
2000, pp. 249-254, 2000.
Frisken-Gibson, “Using Linked Volumes to Model Object Collisions, Deformation,
Cutting, Carving, and Joining”, IEEE Transactions on Visualization and Computer
Graphics, Vol. 5, No. 4, 1999.
Leventon and Gibson (Frisken), “Generating Models from Multiple Volumes Using
Constrained Elastic SurfaceNets”, Proc. ICCV, January, 1999.
Gibson (Frisken), “Using Distance Maps for Accurate Surface Representation in
Sampled Volumes”, Proc. 1998 IEEE Symposium on Volume Visualization, Oct.
1998, pp. 23-30. Best paper award.

7. Gibson (Frisken), “Constrained Elastic SurfaceNets: Generating Smooth Surfaces
from Binary Segmented Data”, Proc. Medical Image Computation and Computer
Assisted Interventions, Oct. 1998, pp. 888-898.
Schill and Gibson (Frisken), “Biomechanical Simulation of the Vitreous Humor of
the Eye Using an Enhanced ChainMail Algorithm”, Proc. Medical Image
Computation and Computer Integrated Surgery, March, 1998. pp. 679-687.
Gibson (Frisken), Fyock, Grimson, Kanade, Kikinis, Lauer, McKenzie, Mor,
Nakajima, Ohkami, Osborne, Samosky, Sawada, “Simulating Surgery Using
Volumetric Object Representations, Real-time Volume Rendering, and Haptic
Feedback”, Medical Image Analysis, Vol. 2, No. 2, 1998, pp. 121-132.
Kapur, Beardsley, Gibson (Frisken), Grimson, and Wells, “Model-based
Segmentation of Clinical Knee MRI”, Proc. ICCV’98, January, 1998.
Gibson (Frisken), “3D ChainMail: a Fast Algorithm for Deforming Volumetric
Objects”, Proc. 1997 Symposium on Interactive 3D Graphics, April 1997, pp. 149-
154.
Gibson (Frisken) and Mirtich, “A Survey of Deformable Modeling in Computer
Graphics”, MERL Technical Report, TR97-19, 1997.
Marks, Andalman, Beardsley, Freeman, Gibson (Frisken), Hodgins, Kang, Mirtich,
Pfister, Ruml, Ryall, Seims, Shieber, “Design Galleries: A General Approach to
Setting Parameters for Computer Graphics and Animation”, Proc. SIGGRAPH‘97,
Los Angeles, CA, 1997.
Osborne, Pfister, Lauer, McKenzie, Gibson (Frisken), Hiatt, Ohkami, “EM-Cube:
An Architecture for Low-cost Real-time Volume Rendering”, Proc.
SIGGRAPH/Eurographics Workshop on Graphics Hardware ‘97, Los Angeles,
CA, 1997.
Ackermann, Bromley, DeMaso, Gibson (Frisken), Gonzalez-Heydrich, Marks,
Shen, Strohecker, Umaschi, “Experience Journals: Using Computers to Share
Personal Stories About Illness and Medical Intervention”, Medical Informatics,
1997.
Keeve, Gibson (Frisken), Halle, Richolt, Kikinis, “Biomechanic-based Simulation
of Knee Dynamics”, Proc. Computer Integrated Surgery ‘97, Linz, Austria, 1997.
Gibson (Frisken), Marks, Feinberg, and Sosa, "A Heuristic Method for Generating
2D CSG Trees from Bitmaps", Proc. Graphics Interface ‘97, Kelowna, BC, pp.
163-172, 1997.
Gibson (Frisken), Samosky, Mor, Fyock, Grimson, Kanade, Kikinis, Lauer,
McKenzie, Nakajima, Ohkami, Osborne, Sawada, "Simulating Arthroscopic Knee
Surgery using Volumetric Object Representations, Real-time Volume Rendering,
and Haptic Feedback", Proc. CVRMed II and MRCAS III, Grenoble, FR, pp. 369-
378, 1997.
Gibson (Frisken), "Beyond Volume Rendering: Visualization, Haptic Exploration,
and Physical Modeling of Voxel-based Objects", in Visualization in Scientific
Computing'95, eds. R. Scateni, J. van Wijk, P. Zanarini, Springer-Verlag, NY, pp.
10-24, 1995.
Gibson (Frisken) and Lanni, "Experimental Test of an Analytic Model of
Aberration in an Oil-immersion Objective Lens used in 3D Light Microscopy", J.
Opt. Soc. Am A, Vol. 8, pp. 1601-1613, 1991.

8. Gibson (Frisken) and Lanni, "Measured and Analytical Point-spread Functions of
the Optical Microscope for use in 3D Optical Serial Sectioning Microscopy", in
Optical Microscopy for Biology, eds. B. Herman and K. Jacobson, Wiley, NY, pp.
109-118, 1990.
Gibson (Frisken) and Lanni, "Diffraction by a Circular Aperture as a Model for 3-D
Optical Microscopy", J. Opt. Soc. Am A, Vol. 6, pp. 1357-1367, 1989.
Gibson (Frisken), Bach-y-Rita, Tompkins, and Webster, “A 64-solenoid, Four-
level Haptic Display Device for the Blind”, IEEE Trans. Biomed. Engr. Vol. BME-
34, No. 12, pp. 963-965, 1987.
Patents
Gibson, “Locator Device for Control of Graphical Objects”
Gibson, “Collision Avoidance System for Voxel-based Object Representation”
Gibson and Marks, “Method and Apparatus for Differential Object Modeling using
Automatically Generated Constructive Solid Geometry (CSG) Through an
Evolutionary Process”
Gibson and Marks, “Simultaneous Constructive Solid Geometry (CSG) Modeler
for Multiple Objects”
Marks, Pfister and Gibson, “System for Color and Opacity Transfer Function
Specification in Volume Rendering”
Gibson, “System for Depicting Surfaces using Volumetric Distance Maps”
Gibson, “Cutting, Joining and Tearing Volumetric Objects”
Gibson, “System for Rapidly Deforming a Graphical Object”
Gibson, “Surface Net Smoothing for Surface Representation from Binary Sampled
Data”
Gibson and Perry, “Method For Estimating Volumetric Distance Maps from 2D
Depth Images”
Gibson and Leventon, “Surface Model Generation for Visualizing Three-
Dimensional Objects Using Multiple Elastic Surface Nets”
Frisken, Perry and Jones, “Detail-Directed Hierarchical Distance Fields”
Frisken, Perry and Jones, “Sculpting Objects Using Detail-Directed Hierarchical
Distance Fields”
Perry, Frisken and Jones, “Representing A Color Gamut with a Hierarchical
Distance Field”
Perry, Frisken and Jones, “Customized Model Construction via a Network
Interface”
Perry and Frisken, “Modeling and Combining Multiple Graphics Objects”

9. Perry and Frisken, “System and Method for Generating Adaptively Sampled
Distance Fields with Bounded Distance Trees”
Perry and Frisken, “Surface Following Interaction Method for Adaptively Sampled
Distance Fields”
Perry and Frisken, “Distance Based Constraints for Adaptively Sampled Distance
Fields”
Frisken and Perry, “Hierarchical Control Point Editing of Adaptively Sampled
Distance Fields”
Perry and Frisken, “System and Method for Sculpting Digital Models”
Frisken and Perry, “System and Method for Converting Range Data to 3D
Models”
Frisken and Perry, “Conversion of Adaptively Sampled Distance Fields to
Triangles”
Perry and Frisken, “Method for Correcting an Adaptively Sampled Distance Field”
Perry, Frisken and Pope, “Modeling Graphical Objects with Topological Hints”
Perry, Frisken and Pope, “System and Method for Modeling Graphics Objects”
Perry and Frisken, “Method for Selectively Regenerating an Adaptively Sampled
Distance Field”
Pope, Frisken and Perry, “Method and System for Dynamically Generating View
Dependent Rendering Elements from a Static Adaptively Sampled Distance Field”
Perry, Frisken and Pope, “Method for Generating Detail Directed Visibility
Elements for a Graphics Model”
Frisken and Perry, “Method and System for Modeling Interaction of Objects”
Frisken and Perry, “Method for Determining the Shape of Objects Directly from
Range Images”
Frisken and Perry, “Method for Determining Distances to a Surface from a Range
Image”
Frisken and Perry, “Method for Generating a Textured Range Image”
Perry and Frisken, “Enhancing Textured Range Images Using a 2D Editor”
Perry and Frisken, “Single Lens 3D Camera”
Frisken and Perry, “Method for Traversing Quadtrees, Octrees, and N-
Dimensional Bi-trees”
Perry and Frisken, “Method for Antialiasing an Object Represented as a Two-
Dimensional Distance Field in Image-Order”
Frisken and Perry, “Method for Antialiasing an Object Represented as a Two-
Dimensional Distance Field in Object-Order”
Frisken and Perry, “Method for Animating Two-Dimensional Objects”

10. Perry and Frisken, “Method for Converting Two-Dimensional Objects to Distance
Fields”
Frisken and Perry, “Method for Converting a Two-Dimensional Distance Field to a
Set of Boundary Descriptors”
Perry and Frisken, “Method for Converting Two-Dimensional Pen Strokes to
Distance Fields”
Perry and Frisken, “Method for Generating a Two-Dimensional Distance Field
within a Cell Associated with a Corner of a Two-Dimensional Object”
Frisken, Perry, and Sullivan, “Method for Simulating Numerically Controlled
Milling Using Adaptively Sampled Distance Fields”
Sullivan, Frisken, and Perry, “Method and System for Rendering 3D Distance
Fields”
Jakubiak, Perry, and Frisken, “Method for Converting Outline Characters to
Stylized Stroke Characters”
Perry and Frisken, “Method for Generating a Distance Field of an Object
Represented by Stylized Strokes”
Perry and Frisken, “Method for Generating a Distance Field of an Object
Represented by Outlines”
Frisken, Perry and Sullivan, “Method for Reconstructing a Distance Field of a
Swept Volume at a Sample Point”
Professional Activities
Paper/Program
Committees
IEEE Visualization
Medical Image Computation and Computer Assisted Interventions
International Workshop on Volume Graphics
IEEE Symposium on Volume Visualization
Reviewer SIGGRAPH
IEEE Transactions on Visualization and Computer Graphics
IEEE Transactions on Graphics
IEEE Visualization Conference
International Workshop on Volume Graphics
IEEE Symposium on Volume Visualization
Medical Image Computation and Computer-Assisted Interventions
NIH SBIR Special Study Section on Medical Imaging and Device Technology
Graphics Interface
Invited Talks and
Lectures
SIGGRAPH’01 course “New Directions in Shape Representation”, organized by
Hanspeter Pfister and Alyn Rockwood, Aug. 2001.
SIGGRAPH’99 course “Volume Graphics”, organized by Arie Kaufman, Aug.
1999.
SIGGRAPH’99 course “Modeling for Medical Applications”, organized by Dimitri
Metaxas, Aug. 1999.
IEEE Visualization course “Volume Graphics”, organized by Arie Kaufman, Oct.
1999.
University of Kaiserslautern, Germany, “Computer Assisted Surgery using
Volumetric Models”, May, 1998.

11. University of Mannheim, Germany, “Volume Graphics in Computer Assisted
Surgery”, May, 1998.
Keynote Speaker, Eurographics Workshop on Visualization in Scientific
Computing, “Visualization, Haptics, and Physical Modeling with Volumetric
Objects”, April, 1998.
Dagstuhl Workshop on Scientific Visualization, “Volumetric Methods in Surgical
Simulation”, Dagstuhl, Germany, June, 1997.
Office of Naval Research Workshop on Volume Visualization, “Volumetric
Modeling of Graphical Objects for Medical Applications”, Phoenix, Az, February,
1996.
Harvard lecture to computer graphics graduate students, “Volume Graphics”,
Cambridge, MA, November, 1995
MIT Media Laboratory, invited talk, “Collision Detection and Object Deformation
with Volumetric Objects”, Cambridge, MA, May, 1995.
MIT lecture to mechanical engineering graduate students, “Volume Rendering”,
Cambridge, MA, 1994
Dartmouth lecture to biomedical engineering seniors, “Computer Assisted
Surgery”, Dartmouth, NH, November, 1994
MIT Laboratory for Computer Science, “Applications of Computer Vision in
Medical Robotics and Computer Assisted Surgery”, Cambridge, MA, June, 1993.
Invited Participant Fifth Annual Symposium on Frontiers of Engineering, Beckman Center, Irvine CA,
October, 1999.
International Workshop on Robotics and Computer Assisted Medical
Interventions, Bristol, England, June 1996.
National Science Foundation Workshop on Computer Assisted Surgery,
Baltimore, MD, February, 1993.
Honors and
Awards
The sale of Mischief to The Foundry was featured in this Boston Globe article:
http://www.betaboston.com/news/2014/11/13/sarah-friskens-mischief-painting-
application-acquired-by-the-uks-the-foundry-group/, November 2014
The Foundry interviews Sarah, Chris Cheung, and artist Mike Mattesi about
Mischief: https://vimeo.com/111834240
Sarah and Mischief were featured in this interview by Wacom:
https://www.youtube.com/watch?v=_aZG0kRRHak, December, 2014
Sarah and Mischief were featured in this VentureFizz article:
https://venturefizz.com/blog/making-mischief-magical-app-unlike-anything-youve-
seen, October 2013
ADF volumetric and geometric detail images were presented at the New Center
for Art & Technology and the New Media Art Gallery in Cleveland, Ohio and the
Intel-sponsored Science &Engineering Expo in May, 2003.
Three volumetric ADF molecular renderings were selected for both the front and
back covers of the SIGGRAPH quarterly journal, Computer Graphics, February,
2002.
ADFs were featured in “A Closer Look at Distance Fields”, Computer Graphics
World: Innovation in Visual Computing, December 2000.
Best Paper Award, 1998 Symposium on Volume Visualization for “Using Distance
Maps for Accurate Surface Representation in Sampled Volumes”