Visual Perspectives Consulting:
for insight in visual analysis, visualization, color, perception and haptics
SPIE/IS&T CONFERENCE ON HUMAN VISION AND ELECTRONIC IMAGING-- The International Conference on Perception, Cognition and Electronic Media
Color in Visualization and UI Design-- why perception matters
The same data with two different color maps. The rainbow colormap (left) obfuscates the features in this visualization of Florida; the perceptual colormap (right) provides a more faithful representation of the data. Rogowitz and Treinsh, 1998.
beams of particles were set to collide in front of a particle detector. All four panels show the mass (GeV/C2) of hundreds of trillions of collisions. The hypothesized Higgs-Boson was predicted to have a mass of 125-127 Giga Electron Volts. The top left panel uses a rainbow colormap to represent the mass across the detector. The data were log transformed (bottom left), then a colormap with monotonic luminance was used (bottom right), and, in the top right, the mass was redundantly mapped onto a height, producing a visualization that clearly shows the mass signature of the Higgs Boson. Rogowitz and Couet, CERN 2013
Interactive Visualization - the Visualization and Visual Analysis (ViVA) Workbench
At IBM Research, my group developed an interactive visualization and analysis package, which we licensed to SPSS and used in IBM offerings, such as FAMS. ViVA offers over 20 linked visualizations, with color brushing, plus a library of over 250 mathematical functions. Download it free from Source Forge!
Finding Patterns across Multiple Data Types
Working with Johns Hopkins University, we developed a method for linking a 3-D model of the heart with 2-D visualizations of parameters of an underlying finite element model. A 3-d model of a heart is shown in the top left panel. For every point in the heart, there are values of a finite element model, which are visualized in the scatterplot and histogram. In this example, the analyst has marked two regions in the histogram, corresponding to two different ranges of the variable 'Calcium in the Subspace of the Heart Organelle' and can immediately see which areas of the 3-D heart have these values. Gresh, Rogowitz, Winslow, Scollan, Yung, 2001.
Image Semantics and Search
Rogowitz, B.E. and Goodman, A., “Integrating human- and computer-based approaches for feature extraction and analysis,” Proceedings of the SPIE, Vol. 8291, SPIE/IS&T Conference on Human Vision and Electronic Imaging XVII (2012), 82910W.
Rogowitz, B.E.and Matasci, N., ""Metadata mapper: a user interfaces web service for mapping data between independent visual analysis components, guided by perceptual rules," Proc. of the SPIE, Vol. 7865 (2011)
Rogowitz, B.E., Pappas, T, and Allebach, J. "Human Vision and Elecronic Imaging," chapter in Handbook of Optics, edited by Bass, M., Enoch, J, and Lakshminarayanan, V. Volume III: Vision and Optics, McGraw Hill, 2010
Citation for SPIE Fellow, January 20, 2009:
"Dr. Rogowitz's Fellow promotion is for specific achievements in human vision applications in electronic imaging. She has been a leader in research in perceptual areas relevant to imaging and visualization systems, in developing interactive software systems based on her deep understanding of these issues, and building a community linking the engineering and human vision communities." Click here for full citation
SPIE/IS&T Conference on Human Vision and Electronic Imaging (1989-present)
(January 31, 2015)
Spent a great week at the Dagstuhl Seminar on "Empirical Evaluation for Graph Drawing“, where I was honored to be one of the invited trainers. Six groups designed hypothesis-driven experiments and frameworks. A great, interactive time was had by all.
(November 14, 2014)
The IEEE Visualization meeting was in Paris this year. To me, the highlight was the exhibit of Bertin's visualizations put togetehr by Jean-Daniel Fekete and his students. Georges Grinstein and I led the Vis Lies meet-up, which revealed humorous and painful ways that visualization can misrepresent data. There was also a panel where several of us (Georges Grinstein, Sheelagh Carpendale, Jim Foley, Theresa-Marie Rhyne, Ben Schneiderman and I) shared wisdom with the next generation. Could have been hokey, but it wasn't.(October 20, 2014)
The program for the Conference on Human Vision and Electronic Imaging 2015 is now available. Hope you can join us in San Francisco February 8-12. There will be special session on (1) New frontiers in perceptual image quality: novel evaluation techniques, natural scenes and higher-level features, (2) Perception of texture, gloss and color, (3) Lighting, light and Lightness, (4) Color in new technologies from mobile to cinema, (5) Attention and visual saliency, (6) Visualization and computer graphics, and (7) Digital humanities. There will also be several great short courses, a panel on algorithms vs. humans, and an excursion to the deYoung museum.
(August 20, 2014)
My patent on "Pervasive Network for Environmental Sensing" has just issued. US 20080183389 This is a patent on gathering information from cell phones, analyzing the collected input centrally, then broadcasting synthesized messages. With Nitindra Rajput and Tim Chainer.
(August 13-14, 2014)
Had a great visit at Los Alamos National Lab, where I taught in the Summer Data School and visited with Jim Ahrens, David Rogers and their colleagues. Talked about representing data using perceptual guidance, analysis tasks, and the analysis process.
(June 8-13, 2014)
I attended the first Gordon Conference on Imaging, which focused on imaging matched to the task. My poster was on uses and misuses of color in medical imaging.
(May 12-14, 2014)
The International Congress on Imaging Science (ICIS) in Tel Aviv was a great experience! Devices, imaging physics, medical imaging, and perception! I was invited to talk about imaging tasks, and how different tasks involved different perceptual and cognitive capabilities.
(May 7-8, 2014)
I served on the Department of Energy (DOE) Review Panel for Lucy Nowell's program on Scientific Data Management, Analysis and Visualization at Extreme Scale, which included, for the first time, proposals expressly focused on visualization and data analytics matched to human perception and cognition.
(May 2, 2014)
NITRD/NSF Frontiers of Visualization Workshop. 23 scientists were invited for a day of brainstorming to help the government identify key research trends. To begin, we were asked to introduce ourselves, identify areas we are passionate about, and define our wish list for research in visualization. Here's a YouTube video of my 6-minute presentation!
(May 1, 2014)
(January 28, 2014)
(December 17, 2013)
Online talk: Perceptual approaches to finding features in data. The presentation I gave at HVEI last year is now online (33 min).
(December 5, 2013)
HVEI Program. Here's a link to the program for HVEI2014. Keynote speakers: Damon Chandler (Oklahoma), Ed Chi (Google), Shi-Fu Chang (Columbia), Christopher Tyler (Smith-Kettlewell). http://spie.org/EI/conferencedetails/human-vision-electronic-imaging(November 25, 2013)
VisLies overview. Ken Moreland created a blog entry with examples from VisLies session we led at the IEEE Visualization conference. Very funny! http://drmoron.org/vislies-2013/(October 7, 2013)
Lateral Thinking Workshop. I'll be participating in a workshop on Using Visualization to Foster Lateral Thinking next Wednesday at IEEE Vis, organized by Chandan Gokhale.
(September 25, 2013)
VisLies. Georges Grinstein (U Mass), Ken Moreland (Sandia) and I will be hosting VisLies at the IEEE Visualization Conference! The audience will provide an array of visualizations that lie, deceive, or mislead. The lively discussions are fun and educational. Tuesday, October 15th in Atlanta. http://ieeevis.org/year/2013/bof/visweek/vis-lies
(July 10, 2013)
HVEI 2013 Call for Papers. HVEI 2013 will be in San Francisco. We have special sessions on brain imaging, spatial-temporal issues in video coding, art and perception, visual/auditory interactions, texture, and perceptual issues in big data. Check out the call for papers! Paper deadline: August 5th.
(May 23, 2013)
DICTA. I'll be serving on the technical program committee for the international conference on Digital Image Computing: Techniques and Applications (DICTA), which will be held in Tasmania (!), Nov 26-28, 2013.
(March 1, 2013)
Cybersecurity. Joined the Program Committee for the IEEE Workshop on Visualization for Cybersecurity Key focus-- evaluating how well visualization supports analytical reasoning and decision-making.February 18, 2013)
Colormaps for CERN. I've been working with Olivier Couet at CERN, the European laboratory for particle physics, to visualize candidate Higgs-Boson data. By eliminating the rainbow colormap and using a surface to redundantly encode the mass at the detector, a stunning visualization of the Higgs Boson mass signature emerged. Higgs-Boson Data Visualization, CERN, 2013..
HVEI 2013. This week we celebrate the 25th Anniversary of the Conference on Human Vision and Electronic Imaging. Our keynote speakers are Aude Oliva (MIT), Jan Koenderink (Delft) and Don Hoffman (UC Irvine); our banquet speaker is Walter Bender (Sugar Labs). There will also be a dozen invited "theme" talks that explore the development of key trends in imaging and perception over the past 25 years, and outline future research and technology opportunities.
Radcliffe Workshop on Data Understanding. Just concluded the 3-day Radcliffe Workshop Data Understanding, co-chaired with Alyssa Goodman, Hanspeter Pfister and Michelle Borkin. Trying to create a multidisciplinary research roadmap for integrating perceptual and algorithmic approaches to finding features in data, encompassing the full range of data types, algorithms, and interaction methodologies. Exhilarating and exhausting!
The program for the 25th Conference on Human Vision and Electronic Imaging is now online. This year our keynotes are Aude Oliva, Jan Koenderink, and Don Hoffman. Walter Bender is our banquet speaker.
Lovely visit at the University of Michigan! Presented "Nuggets of Wisdom from Research in Vision and Cognition" in the Data Visualization seminar series. Fun discussions about color maps, risk modeling, and visualizing gene expression array data.(August 22, 2012)
I will be teaching a tutorial on "Perception and Cognition for Imaging, Visualization and Graphics" at the IEEE Visualization conference in Seattle on October 14, 2012. Hope to see you there.(August 1, 2012)
We are making great progress on our anniversary celebration for HVEI, which will be held at the San Francisco Airport Hyatt, February 3-7, 2013. Here is the call for papers, which includes information on submitting an abstract. Keynote speakers this year include Pat Hanrahan (Stanford), Aude Oliva (MIT), Jan Koenderink (Delft) and Don Hoffman (UCI). There will also be a dozen "theme" papers tracing the evolution of research at the intersection between human vision and electronic media.
(July 2, 2012)
The patent Paul Borrel and I wrote on a novel haptic input/output device has issued: US Patent: 8,203,529 B2.
We coupled a dynamic pin array with a robotic control system to
provide a mechanism that allows the user to sense and edit surfaces for
visualization and virtual reality applications.
(March 9, 2012)
Here's a link to the paper Alyssa Goodman and I wrote on integrating human- and computer-based approaches
for extracting features in visualization, graphics and imaging data.
The next step will be to strengthen this framework by exercising it with
scenarios from a number of different fields.
(January 27, 2012)
The Human Vision and Electronic Imaging Conference, January 23- 26, 2012 was very exciting. Our keynote speakers were Marc Levoy (Stanford) on computational photography, John McCann (McCann Imaging) on color constancy and high dynamic range imaging and Larry Maloney (NYU) on the perception of materials. Carol O'Sullivan (Trinity College) gave the banquet talk on human motion perception and computer animation, and we enjoyed Art and Perception day, which culminated in a visit to the San Francisco Museum of Modern Art. There were special session on perceptual and cognitive approaches to computational photography, perceiving materials, medical imaging, stereo imaging, image quality, and brain plasticity. I presented a paper with Alyssa Goodman (Harvard) on a framework for integrating human- and machine-based approaches in exploratory image and data analysis, and taught a short course on Perception and Cognition for Emerging Imaging Technologies.
(January 6, 2012)
Our Radcliffe workshop proposal has been accepted! With Alyssa Goodman and Hanspeter Pfister, I'll be organizing a workshop on integrating human- and algorithmic approaches to carving out and characterizing features in complex data.
(October 9, 2011)
Just out! - the advance program for the Human Vision and Electronic Imaging Conference,
January 23- 26, 2012. This year there are special sessions on
perceptual and cognitive issues in Representing Materials, Computational
Photography, Medical Imaging, Art, Stereo Imaging, and Image Quality,
plus, tutorials on January 22nd.
(August 15, 2011)
The IEEE Visualization conference is coming up. Here's the outline for the tutorial I'll be presenting on Perception and Cognition for Visualization, Visual Data Analysis and Computer Graphics. I'll be posting the charts in October.
(April 26, 2011)
The 2012 Conference on Human Vision and Electronic Imaging call for papers
is now available. The conference will be held at the San Francisco
Hyatt airport hotel, January 22-26. This year, we are planning special
sessions on 1) perceiving material properties, 2) attention and visual
search, 3) artistic rendering, 4) semiotics of perception, 5) object
recognition, 6) computational photography, 7) auditory/visual
integration, and 8) perceptual image quality. Hope you can join us for
another year of multidisciplinary exploration at the frontier of human
perception and electronic media.
(March 15, 2011)
scientific software often provides complementary functions, it is
difficult to create an application that supports interactive exploration
across applications. To address this problem, Naim Matasci and I have
just published a paper on an architecture for sharing data between
components, which we call the Metadata mapper.
In this system, the user can identify metadata in one component (e.g., a
region of interest) and corresponding regions can be highlighted in
another. Rules guide the data mapping, and the choices the user
makes are constrained by the capabilities of the target component and
guidance on human perception and cognition. For example, the analyst
may select a geographic region, in one application, and have all the
species living in that region highlighted on a phylogenetic tree. If
the tree component can support the representation of continuous
variables, then the user may select a color map to represent the number
of represented species in a particular branch (clade) of the tree.
Which colormap are offered to the analyst depend on the data type and
principles of magnitude and color perception. Although this work was
done in the context of bioinformatics data analysis, the principles are
generalizable to any component architecture.
The 2011 Conference on Human Vision and Electronic Imaging was fabulous. I especially enjoyed the keynotes: Georges Grinstein on visualization and visual analysis opportunities, Anton Koning on 3-D medical environments, Jan Koenderink on the visual "priors" we bring to any visual experience, and Nao Tsuchiya on new research in attention and consciousness. We'll be posting their presentations on the HVEI website. I really enjoyed our special sessions Attention, and Perceptual challenges for bioinformatics data visualization. The joint sessions on Stereo and Image Quality brought several communities together. I'll be posting the charts from my short course soon. And, thanks again to iPlant and RIT for sponsoring social events for us.
(December 9, 2010)
I participated in the National Academies Keck Futures Initiative (NAKFI) Future of Imaging Conference
in Irvine, sponsored by the National Academies of Science, Engineering
and Medicine, November 16-19. This was a fabulous multi-disciplinary
conference, focused on defining research challenges in this emerging
area. The main activities were poster presentations and workshops. I
presented a poster called "Perception, Cognition and Semantics in
Imaging". My workshop team developed a framework for integrating human
and machine intelligence for representing and comparing features in
visual representations, combining approaches from human vision and
cognition, machine vision, computer vision, and artificial
intelligence. More details can be shared after the report is filed!
(October 23, 2010)
IEEE Visualization Conference October 21-28, 2010. I served on the Theory of Visualization Panel, where my contribution focused perceptual guidance for mapping data onto visual representations and interactive tools for finding features in the data. Georges Grinstein and I hosted the VisLies session on Tuesday night, a riotous exploration of the ways in which data can be misrepresented, contorted, or tortured through visualization.
(September 24, 2010)
Here is the Advance Program for the SPIE/IS&T Conference on Human Vision and Electronic Imaging (HVEI), which I chair with Thrasos Pappas. HVEI will be held at the San Francisco Airport Hyatt, January 24-27, 2011. Some highlights of this year's program include:
(July 28, 2010)
The ViVA visualization and visual analysis software package that my group developed at IBM Research is now available for download on Source Forge: https://sourceforge.net/projects/iplant-viva/
I'm working for the University of Texas, Austin's Center for Advanced Computing (TACC) on an NSF grant called iPlant.
My contribution is at the interface between plant and computer science,
providing discovery tools and methods that will enable new scientific
insights. I'm participating in two working groups, one on Visualization
and Visual Analysis for genome to phenome (G2P) data analysis and one
on visualizing a 500,000 species tree of life. I'm eager to hear about
relevant work you are doing in these areas.