Mantis Shrimp Gets Fifteen Seconds of Fame

PBS is currently running a series entitled "Human Senses" and the most recent episode featured none other than our previously blogged friend and polarizing figure, the ultra-percieving mantis shrimp. It's quite something to actually see its remarkable pair of multi-channel photon detectors in action.

[Click for video and scroll to 09:02]
This episode will be repeated in the San Francisco Area tonight at 11:00PM on KQEDW (Digital 9.3). Elsewhere, check your local listings.

Checker This Out

Are the squares A and B the same shade of gray?


The answer is, yes! Do you need your eyes check(er)ed?

Color naming follow-up

I received some interesting feedback on the color naming tech. report. A reader implied that in traditional psychophysics experiments the informants are first screened for color vision deficiencies (CVD), and our on-line experiment fails to do that. This was felt to be a grave omission especially in light of the two recent JOSA A papers by Kimberly Jameson and Natalia Komarova: http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-6-1414 and http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-6-1424.

Postdoctoral Fellowship in Computational Categorization

The Print Production Automation Laboratory of Hewlett-Packard Laboratories in Palo Alto, California is seeking candidates for an ASEE/NSF postdoctoral fellowship in computational categorization in the area of color imaging. A brief description of this opportunity has been posted to the ASEE/NSF web site.



The position will apply experience and interests in perceptual categorization, machine learning, statistical pattern recognition, and natural computation to a sizeable, diverse and growing collection of laboratory and web-derived ground truthing databases for color imaging. Join a team working on advanced optical feedback for commercial printing and provide knowledge of multi-variate clustering, to implement software to perform computational categorization.

Color naming: color scientists do it between Munsell Sheets of Color

Last year at the IS&T/SPIE Electronic Imaging symposium in San Jose the conference Color Imaging: Displaying, Hardcopy, Processing, and Applications started a session on controversial topics called "The Dark Side of Color." These are papers that transcend the incremental research methodology of solving a problem, proving the solution's contribution in an experiment, and reporting the result in a conference. This session consists of papers were authors go out on a limb, not afraid of intuition and speculation, and propose new paradigms.

A preprint of our contribution is now available at this link: http://www.hpl.hp.com/techreports/2009/HPL-2009-363.html.

Un nuovo libro

Studiose, storiche, giornaliste ed esperte del colore, Lia Luzzatto e Renata Pompas hanno maturato una lunga esperienza internazionale sul colore. Membre di network internazionali riconosciuti, tengono lezioni, conferenze, seminari in aziende, istituzioni e università. Oltre a centinaia di articoli e contributi in libri collettivi, hanno al loro attivo numerose pubblicazioni.

Still Life with Sopapilla and Equations

Still digesting the technical content of CIC17. In the mean time here are some photos. Albuquerque, New Mexico has quite a few architectural gems. Here Steve is standing with one of them that has been clearly labeled.



Next is a still life with sopapilla and equations.

Mavericks are best for crowd-sourcing

Maverick is the antonym of conformist or a culturally competent person. Synonyms include: individualist, nonconformist, free spirit, unorthodox person, original, eccentric; rebel, dissenter, dissident, enfant terrible; informal cowboy, loose cannon.

A color never comes alone

This is a motto I was using 25 years ago. At that time I was working on VLSI design automation tools at Xerox PARC, more specifically on design rule checkers for full custom CMOS. The designers were doing so many layout errors that I could not understand how a top notch designer could do them. I had the suspicion that some of the designers could have a color vision deficiency — and 20 years later I discovered one of them is a dichromat — but that was not explaining the the type and volume of errors. I decided to investigate.

New Image Search: No Training Required

Engineers at the UCSC have developed a new approach to computer recognition or categorization of images or videos. They claim to have overcome a major drawback of existing methods for computer recognition of objects in images—the need for an extensive training phase using a large number of samples. With a single photograph or video clip as a template, their software supposedly sifts through thousands of images or videos and presents the ones that look most like the template. Submitted to IEEE Trans. on Pattern Analysis and Machine Intelligence.

CIC17 Presentations

The 17th IS&T/SID Color Imaging Conference in Albuquerque, New Mexico has been busy.

In addition to some twilight geocaching with the call of a rout of coyotes in the distance, was an opportunitity to give a last minute keynote. The first keynote speaker was unable to attend and so I gave an encore presentation of my 25th anniversary of the Munsell Color Science Laboratory keynote.

CIC 17 - Color Science & Imaging: Future Opportunities

View more documents from nmoroney.

The presentation was well received and there were many follow-up questions, comments and discussions. This afternoon I will present the paper, Nominal Scaling of Print Substrates.

CIC 17 - Nominal Scaling of Print Substrates

View more documents from nmoroney.

Color Sorting with a Bow-Tie

A Fractal antenna is more efficient than a conventional antenna, which is why most cell phones already have them embedded. This level of compactness is highly beneficial for long wavelength radiation such as: DTV, Wi-Fi, FM and AM radio. What about shorter wavelengths, like visible light?

Researchers at the Lawrence Berkeley National Laboratory have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" devices act as antennae to focus and sort light in tiny spaces, a potentially useful technique for harvesting broadband light for color-sensitive filters and detectors.

The scanning electron image (at left) of a nano color sorter shows the vertical bow-tie antenna shifted 5 nm to the left of center. In Figure (a) the bowtie has been exited at 820 nm and in Figure (b) at 780 nm wavelength. The two modes are spectrally and spatially distinct while maintaining nanoscale mode volumes. [Source: LBNL]

Encyclopedia of Color Science and Technology

A quick announcement about a new color related project - the Encyclopedia of Color Science and Technology. This major reference work about color in color will be published by Springer and I will be busy as the editor-in-chief. The first sample entry has been completed and is available on the project web site. It's an entry on CIECAM02.



The effort thus far has given me a new appreciation for indexing. As Harman(1) states of indexing: "the second key decision for any indexing is the choice of what constitutes a word and, then, which of these words to index." Stay tuned.

(1) D. Harman, Challenges in Indexing Electronic Text and Images, ASIS Monograph, Medford NJ, p. 249 (1994).

Nature's almost perfect quarter-wave retarder

On September 28, I reported on the keynote lecture on Why are animals colourful? Sex and violence, seeing and signals Justin Marshall gave at the AIC in Sydney. Prof. Marshall gave a description the mantis shrimp's eye noting how it can see polarization with the help of a structure like a kind of nanotube.

Three AIC pictures

We received three pictures from the AIC meeting in Sydney for sharing with you.