This page lists the events in 2014 and 2015. Please use the links in the right column to see events from previous years.
1. “Computational Photography Techniques for Cultural Heritage: Photogrammetry and Reflectance Transformation Imaging (RTI)” (Half-Day Workshop)
CHI Director Carla Schroer will co-present this workshop with Charles Walbridge, lead collections photographer at the Minneapolis Institute of the Arts. Through lectures and demonstrations, the workshop will provide a comprehensive overview of computational photography and its application to cultural heritage, including the technologies, software, photographic equipment, and methods for Reflectance Transformation Imaging (RTI), Algorithmic Rendering (AR) and Photogrammetry — techniques that are being applied to a variety of art objects and artifacts. The workshop will include demonstrations and ample time for discussion and Q&A, including coverage of the required and optional equipment involved. There are no prerequisites. Anyone from novice to expert is welcome.
Minneapolis, Minnesota: Wednesday, November 4, 2015, 1:30–5:30 pm, at the Visual Resources studio at the Minneapolis Institute of Arts, about one mile from the MCN conference in downtown Minneapolis. Limited seating available.
CHI Director Carla Schroer will participate in a panel at the annual MCN conference whose theme this year is “The Invisible Architectures of Connected Museums.” Carla and three other presenters will offer short case studies of current projects. The purpose of the session is to present practical information about the use of photogrammetry for 3D capture of museum objects. There is increasing interest in collecting 3D data about museum material to meet a variety of objectives, including monitoring changes to objects over time, comparing similar objects, documentation of installations, measurement of features in an object or series of objects, 3D printing of replicas for exhibition or sale, public engagement, and many more uses.
Minneapolis, Minnesota: Saturday, November 7, 2015, 10:15–11:15 am
Carla Schroer to Participate
Carla Schroer will participate by invitation again in 2015 in a 3-day meeting at Stanford of digitization program managers, imaging lab professionals, and imaging experts involved in large-scale, high-quality image digitization programs at libraries, archives, and museums.
Stanford, California: Main campus location to be announced; Monday, July 13 through Wednesday, July 15, 2015
Society for American Archaeology Annual Meeting
“Computational Photography Techniques for Scientific Recording and Analysis: Reflectance Transformation Imaging (RTI), Algorithmic Rendering (AR) and Photogrammetry” (Workshop)
With lectures and demonstrations, the CHI team will present a half-day workshop, providing a comprehensive overview of computational photography and its application to archaeological documentation and research. Participants will get an intensive introduction (or update) on these technologies, including software, equipment, and methods. Anyone from novice to expert is welcome.
Hilton Hotel, San Francisco, CA: Wednesday, April 15, 2015, 1:00–5:00 pm (SAA's final program will provide room details.)
UC Berkeley with National Park Service and National Geographic: Science for Parks, Parks for Science: The Next Century
Carla Schroer and Mark Mudge present new tools and research for Reflectance Transformation Imaging (RTI) and Algorithmic Rendering (AR) digital documentation techniques. These techniques are designed for scientific imaging for examining fine surface details of objects and are being applied to a variety of archaeological contexts and materials, as well as to art conservation. The data is collected using digital cameras and processed using open source software, making the techniques inexpensive to use. RTI is particularly useful for discerning difficult to read inscriptions found in a numerous materials including rock art. The technique can also be applied to study tool marks and aid in other research about how materials are made. The presentation will include new tools and new research methods that are expanding the range of applications of these techniques. This talk will also present examples including inscriptions, rock art, manuscripts, and lithics.
UC Berkeley, Berkeley, CA: Friday, March 27, 2015, 11:00–11:15 am — See program for details
Metropolitan Museum of Art: Conservation Talk
“Advances in Computational Photography Techniques for Art Conservation and Digital Documentation” (Presentation)
CHI Director Carla Schroer will discuss new tools and research for Reflectance Transformation Imaging (RTI) and 3D photogrammetry as applied to art conservation and digital documentation. Since the original form of RTI, Polynomial Texture Mapping (PTM), was introduced in 2001, the technique has largely been used as an interpretive tool, allowing an imaging subject’s relighting from any direction and associated mathematical enhancements that facilitate discovery of surface feature details. New tools and approaches are enabling the same image sets captured to generate traditional RTIs to be used for monitoring physical changes in subjects over time. Research at Princeton University and Simon Fraser University in collaboration with CHI is showing significant improvements in the accuracy of the surfaces calculated from RTI data sets. New tools to enhance the collection and organization of technical metadata for RTI will be presented. Examples of the use of photogrammetry for producing detailed, measurable 3D models will also be shown.
New York, NY: Metropolitan Museum of Art, Uris Education Center, Art Study Room; Thursday, December 11, 2014, 11:00 am
New College of Florida: Natural Science Seminar
“Advances in computational photography techniques for cultural, historic, and natural history materials” (Presentation)
Carla Schroer, Director of CHI and an alumna of New College, presents advances in robust new imaging tools from the emerging science known as computational photography. The common feature of the computational photography imaging family is the purpose-driven, selective extraction of information from sequences of digital photographs. Carla's talk will describe robust photography-based digital techniques for use with a wide range of cultural and natural history materials and associated research. She will demonstrate the use of these tools in a range of contexts including fine art conservation, research of museum and library collections, and documentation of rock art. Examples of existing and cutting-edge uses of photography-based imaging will be presented, including Reflectance Transformation Imaging (RTI), Algorithmic Rendering (AR), and methods of image-based generation of textured 3D geometry.
Sarasota, Florida: Friday, October 31, 2014, 4:00 pm
Carla Schroer to Present Lightning Talk
Carla Schroer will present a 3-minute lightning talk at this open-to-the-public meeting in Washington. Carla will describe the goal and scope of CHI’s NEH Digital Humanities grant-supported project, Data Sustainability and Advanced Metadata Management for Scientific Imaging.
Washington, D.C.: Monday afternoon, September 15, 2014
Carla Schroer Invited to Participate
Carla Schroer was awarded a scholarship to a summit hosted by the Nonprofit Technology Network (NTEN). This conference of peers from the nonprofit world will meet to discuss their current web strategies and the steps they can take to enhance their online offerings for their constituents.
San Francisco, CA: Wednesday, September 3 through Saturday, September 6, 2014
Carla Schroer to Participate
Carla Schroer will participate by invitation in this 3-day meeting at Stanford of digitization program managers, imaging lab professionals, and imaging experts involved in large scale, high quality image digitization programs at libraries, archives and museums.
Stanford, California: Room 341 of Cecil H. Green Library (557 Escondido Mall, Stanford, CA 94035), Wednesday, July 16 through Friday, July 18, 2014
LinkSCEEM-2 Project at the Cyprus Institute
“Reflectance Transformation Imaging (RTI) and Cultural Heritage: Its Current State and Potential Future” (Workshop)
As part of the LinkSCEEM-2 Project, the Cyprus Institute, in collaboration with the National Center for Supercomputing Applications and the University of Illinois, is hosting a 3-day workshop that will include a presentation by CHI's Carla Schroer. Carla's talk will focus on new tools and approaches that are enabling new ways of using the same image sets captured as traditional RTIs. This includes the production of more accurate surface normals than in previous approaches, the production of rendered drawings, monitoring physical changes in subjects over time, and measurable 3D geometry. Cultural Heritage Imaging has been collaborating with teams at Princeton University, Simon Fraser University, University of California at Santa Cruz, and the Georgia O’Keeffe Museum in these areas. Carla will also present updates in the RTI tool chain that are under development.
Nicosia, Cyprus: June 3-5, 2014
American Institute for Conservation of Historic and Artistic Works (AIC) 2014 Annual Meeting
1. “Accurate Measurement and the Quantification of Surface and Material Property Change Using New RTI and AR Techniques” (Oral Presentation)
This talk, to be presented by Mark Mudge of Cultural Heritage Imaging, is part of the RATS session in the conference program. The talk is based on work with Mark Drew, computer science professor at Simon Fraser University in Canada, and examines new open source software that will dramatically improve the accuracy of the results generated by Reflectance Transformation Imaging (RTI) and Algorithmic Rendering (AR).
San Francisco, California: Thursday afternoon, May 29, 2014, 3:00–3:30 pm
This workshop will provide a comprehensive overview of computational photography and its application to conservation documentation and research. The session will offer an intensive introduction to and an update on the technologies, software, photographic equipment, and methods for reflectance transformation imaging (RTI), algorithmic rendering (AR), and photogrammetry. The workshop will include lectures, demonstrations of photographic image capture for all techniques, discussions of equipment and setups, and ample opportunity for questions. The program is suitable for those new to computational photography as well as those who are interested in the latest software updates, research, and future development plans.
San Francisco, California at the Cultural Heritage Imaging studio: Wednesday, May 28, 2014, 10:00 am–5:00 pm
CAA 2014: Presentation
Since Polynomial Texture Mapping (PTM), the original form of RTI, was introduced in 2001, the technique has largely been used as an interpretive tool, allowing an imaging subject's relighting from any direction and associated mathematical enhancements that enhance discovery of surface feature details. Now new tools and approaches are enabling the same image sets captured to generate traditional RTIs to be used for generating measurable 3D geometry. In this talk, CHI's Carla Schroer and Mark Mudge, with a team at Simon Fraser University, demonstrate new ways of using RTI data.
Paris, France: Thursday, April 24, 2014, 8:30 am
Hayden Library, MIT Libraries: Presentation and Discussion
“Scientific Computational Photography based Imaging for Digital Heritage” (Presentation)
Carla Schroer, Director of CHI, discusses the robust new empirical capture and analysis tools Reflectance Transformation Imaging (RTI), Algorithmic Rendering (AR), and image-based Structure from Motion (SFM) generation of textured 3D geometry. These techniques will be explored in the context of the emerging science of “computational photography,” which extracts and synthesizes information from image sequences to create a new type of image containing information not found in any single image in the sequence.
Cambridge, Massachusetts: Hayden Library at MIT; Thursday, February 27, 2014, 11:00 am–12:00 pm