Johnny Chung Lee's Recent Words of Wisdom & Google's Open-Source Ceres Non-Linear Least Squares Solver

I have been a fan of Johnny Chung Lee since 2007 or 2008, before he finished his Ph.D in Human-Computer Interaction.  Johnny went on to work at Microsoft (Kinect) and then Google, where he works as a Rapid Evaluator. 


Johnny is known for his experiments with the Wii Remote, which he introduced to the world during a TED Talk in 2008.  He continues to maintain his Procrastineering blog, and from time-to-time, uses his blog to share his take on the world of technology.  The following quote is a good example of his viewpoint, taken from his post, "Technology as a Story":


"...what saddens me is when I encounter technologists with the brilliance to create new and wonderful things, but lack a sense of what is beautiful to people. Technology is most often known for being ugly and unpleasant to use, because technologists most often build technology for other technologists.
...But to touch millions of people, you have to tell a story - a story that they can believe in, a story that can inspire them. Technology is a tool by which new stories can be crafted." - 



Today, I came across Johnny's most recent post, which asks, "So, what exactly is a "non-linear least squares solver"?  And why should you care?   Take a moment to read his post, "Ceres: solving complex problems using computing muscle".  Google just open sourced the Ceres Non-Linear Least Squares Solver.


If Johnny Chung Lee thinks that this is "probably the most interesting code library" that he's had a chance to work with, it probably has some value. 


Even if if you don't have a clue about the Ceres Non-Linear Lest Squares Solver,  you might appreciate Johnny's examples of how would it would useful. In today's rapidly-accelerating technology-supported world, you just might need it in your future!


Here are a few examples:
---Making sense of sensor data from multiple locations (see video "SLAM 1: Viewed at 6X speed")
---Figuring out the position of a camera and the objects in view (see video "Parallel Tracking and Mapping for Small AR Workspaces")
---Combining GPS data with vehicle sensors in cars. (see video "Street View Sensor Fusion with Ceres")


RELATED
Johnny Chung Lee's Website
Excerpt from a post I wrote about Johnny Chung Lee four years ago:
I wish I could be Johnny Chung Lee for a Day! 3/2/08
I've mentioned in previous posts that I am a fan of Johnny Chung Lee, a Ph.D. student in the Human-Computer Interaction department at Carnegie-Mellon University. Johnny expects to complete his Ph.D this year. Johnny recently presented his innovative work at TED 2008. 


What impresses me about Johnny is the way that he has documented his intellectual journey in a very accessible way, by using YouTube and his well-organized, appealing website. Johnny has taken interesting ideas that most would dismiss as silly or impractical, and transformed them into useful, usable applications that hold great promise for future work. 


 In my opinion, many of Johnny's "hacks" will spark ideas related to the design and development of universally designed technologies and applications that will meet the technology needs of a wider range of people. This is important, especially now that an increasing number of "connected" interactive displays and kiosks (known by the marketing industry as interactive digital signage) in public spaces.


January 2011 post:
"Hi, Google. My name is Johnny Chung Lee": Johnny Chung Lee Leaves Microsoft. (I still wish I could be Johnny Chung Lee for a day.)

Jennifer Pahlka's TED talk: "Coding a Better Government" - how Code for America fellows and others are harnessing social media, mobile apps, and the web.

FYI: Jennifer Pahlka will be a keynote speaker on Tuesday, March 13 at the SXSW (South by Southwest) conference in Austin, Texas. SXSW events and interactive keynotes will be streaming live at http://sxsw.com/interactive/live 

In the above video, Jennifer Pahlka, the founder of Code for America, discusses how "coding" citizens- app developers, web developers, designers, and others are helping government work more efficiently and effectively, drawing on the strength of the internet, mobile web, and social media.  http://www.ted.com/talks/view/lang///id/1381


Participatory citizenship through coding!


RELATED
Code for America Fellowship Program
The Code for America Fellows work in teams for 11 months, during which they receive mentoring, education about municipal government, and the opportunity to develop a web application to help cities - and citizens- solve problems.  The 2012 Fellows are based in San Francisco, and are provided a $35,000 stipend, travel expenses, and healthcare. Although based in San Francisco, the Fellows are assigned to a host city (Boston, Washington D.C., Philadelphia, or Seatle), and spend some of their time on-site.
Code for America Blog

South by Southwest - SXSW -Austin, Texas
"The South by Southwest Conference & Festivals offer the unique convergence of original music, independent films, and emerging technologies. Fostering creative and professional growth alike, SXSW is the premier destination for discovery" -SXSW 


SXSW YouTube Channel

Technology, Entertainment, Design, and More: Videos of Recent TEDx Presentations in Charlotte, NC

What is TED?


"TED is a small nonprofit devoted to Ideas Worth Spreading. It started out (in 1984) as a conference bringing together people from three worlds: Technology, Entertainment, Design. Since then its scope has become ever broader. Along with two annual conferences -- the TED Conference in Long Beach and Palm Springs each spring, and the TEDGlobal conference in Oxford UK each summer -- TED includes the award-winning TEDTalks video site, the Open Translation Project and Open TV Project, the inspiring TED Fellows and TEDx programs, and the annual TED Prize" -TED


If you haven't heard,  the original version of TED "Ideas Worth Spreading" has spread around the world.  Charlotte's home-grown version, TEDx was held on September 24, 2010. What is TEDx?    "TEDx is a program that enables local communities such as schools businesses, neighborhoods or just groups of friends to organize, design and host their own TED-like events." 


Unfortunately,  I wasn't able to attend  TEDxCharlotte.  Fortunately, the presentations were captured on HD video and uploaded to the  TEDx Charlotte YouTube channel.  (I haven't watched them all, but as I learn more about each presenter, I'll update this post.)


The following TEDxCharlotte videos were organized in the order of presentation by Justin Ruckman and shared on his blog post, Video from TEDxCharlotte!


Tracy Russ (CEO, Russ Communications)& Q  (Founder, OnQ Productions) 

Roger Baumgarte, Professor Emeritus (Psychology), Winthrop University

 "Mid career, he made an abrupt change in the focus of his professional research, from short-memory to cross-cultural psychology as a result of personal experiences he had with close friendships while on a year-long sabbatical teaching at the American University in Paris." -SEITAR NC
John Silvia, Chief Economist, Wells Fargo

Patrick Dougherty, World Renown NC Sculptor

Nature of Man

Rich Deming, Co-Leader, Slow Food Charlotte

Randy Powell, Senior Researcher, Vortex-Based Mathematics Project

 "Math is the Voice of God"  The Rodin/Powell Solution: A New Approach to Vortex Based Mathematics
Irina Ly, Founding Co-Director, Community Education Project

 Tim Will, Executive Director, Foothills Connect Business & Technology Center

Robert Kosara, UNC-Charlotte, Department of Computer Science (Author of Eager Eyes)

Note:  I learned nearly everything I know about information visualization from taking Dr. Kosara's graduate course, Information Visualization and Visual Communication,  following his blog, and also following his links to awesome related research and ideas percolating amongst those in the infovis community.   Although I took the course in 2008, keeping up with infovis and visual communication an on-going process, since this field is rapidly growing and transforming.

Katie Wyatt, Abreu Fellow (TED), Founder, KidzNotes

Tom Low, Architect at Duany Plater-Zyberk & Co

Doc Hendley, Founder, Wine to Water 

Herb Jackson, Douglas C. Houchens Professor of Art, Davidson College

John Boyer, President and CEO, Bechtler Museum of Modern Art

FYI: My only connection to the Bechtler is my daughter, who spent a little bit of time during one of her internships photographing what she described as "awesome" works of art, helping out with a cataloging project for the Bechtler museum before it opened.  She now works as the coordinator of development at the Light Factory: Contemporary Museum of Photography and Film.
Plug: The Light Factory's educational program provides courses in photography and film including offerings for adults.   
Molly Barker, Founder, Girls on the Run

"Girls on the Run is a non-profit international program that inspires girls to Honor Their Bodies, Celebrate Their Voices, Embrace their Gifts and Activate Their Power. Our program is currently in over 150 cities across North America". Molly Barker's blog

John Love, Interdisciplinary Literary and Performance Artist

Below is an excerpt of an interview of John Love, posted in 2006 on the Weird Charlotte blog.  Given the de-evolution of Charlotte's banking industry and the long-lasting grip of the economic downturn,  his words are worth heeding, especially if our region's community wants to avoid following down the path of my birthplace, Detroit Michigan. (FYI: I left the Detroit area with my husband and two small children to make a new home in Charlotte in 1990.)

WC: What would help make Charlotte a more vibrant cultural city?

John: The pursuit of living poetically.

WC: What can we do right now to make Charlotte a more vibrant cultural city?

John: Be a player who creates the game, owns a piece of the game, and shares the game with the rest of the world. In fashion, art, theatre, film, music, design, and all things that define a culture, support the creation of the product here, create the product here, use the product here, value the product here, evolve the product here, and sell the product to everyone else. Don’t just be a consumer or an interpreter. Be an originator and make it all so exquisite that everyone wants a piece.

Artists at TEDxCharlotte 2010

More info to come!

SOMEWHAT RELATED
Just in case you were thinking of hosting your own local TEDx event:
TED's advice for creating effective multimedia presentations of TEDx talks

TEDx Charlotte (NC) Videos

This post was updated and revised. To view the new version, see:


Technology, Entertainment, Design, and More: Videos of Recent TEDx Presentations in Charlotte, NC

Morning Tech News: LED "Tatoos"; Sixth Sense Wearable Displays

Since I am usually crunched for time, I thought I'd try posting "morning tech news" on this blog in a brief format, and return to the topic later - hopefully later in the day or at the most, within the week.

If you are familiar with this blog, what I consider "news" is sometimes new to me.  It might be something that crossed my path a while ago and never posted.  It might be something that I missed.   It doesn't even have to be "news",  if it is something that is unique, catches my fancy, or is something that I think is an important innovation that should be followed and shared.

Today's news I caught from Wired, which linked to an article in MIT's Technology Review, "Implantable Silicon-Silk Electronics:  Biodegradable circuits could enable better neural interfaces and LED  tatoos", written by Katherine Bourzac.

"By building thin, flexible silicon electronics on silk substrates, researchers have made electronics that almost completely dissolve inside the body. So far the research group has demonstrated arrays of transistors made on thin films of silk. While electronics must usually be encased to protect them from the body, these electronics don't need protection, and the silk means the electronics conform to biological tissue. The silk melts away over time and the thin silicon circuits left behind don't cause irritation because they are just nanometers thick."


RELATED
WIRED's Gadget Lab:  The Illustrated Man:  How LED Tattos Could Make Your Skin a Screen Charlie Sorrel 11/20/09
"The silk substrate onto which the chips are mounted eventually dissolves away inside the body, leaving just the electronics behind. The silicon chips are around the length of a small grain of rice — about 1 millimeter, and just 250 nanometers thick. The sheet of silk will keep them in place, molding to the shape of the skin when saline solution is added.

These displays could be hooked up to any kind of electronic device, also inside the body. Medical uses are being explored, from blood-sugar sensors that show their readouts on the skin itself to neurodevices that tie into the body’s nervous system — hooking chips to particular nerves to control a prosthetic hand, for example."

Tatoo You:  Silicon LED's can act as photonic tattoos that can show blood sugar readings
-Surfdaddy Orca,  hplusmagaizine 11/17/09


"Brian Litt, associate professor of neurology and bioengineering at the University of Pennsylvania, is working with researchers from Beckman Institute at the University of Illinois and Tufts University to develop medical applications for the new transistors. Their silk-silicon LEDs can act as photonic tattoos that can show blood-sugar readings, as well as arrays of conformable electrodes that might interface with the nervous system."


Litt Lab : Translational NeuroEngineering 
(Brian Litt's lab.)


SOMEWHAT RELATED
I've been thinking about flexible touch-screen applications, and it never occurred to me that the concept might be something that would transfer to human skin!  Here are a few of my posts related to this topic:

Last night I dreamt about haptic touch-screen overlays...
Rhizome 2009:  A Lovely Interactive Multi-touch App on a Flexible Lycra Screen
Impress:  A cool flexible interface project  by Silke Hilsing


More about this "somewhat related topic" to come: 
Latest SixthSense demo features paper "laptop" camera gestures
Nilay Patel, Engadget  11/18/09
Adding a "SixthSense" to your Cellphone
Vikas Bajaj, Bits, New York Times 11/6/09
Pattie Maes TED Talk:  Sixth Sense-  Mobile Wearable Interface and Gesture Interaction (for the price of a cell phone!) - my post from 3/2009

Dan Pink's Ted Talk "Surprising Science of Motivation"

Dan Pink is the author of A Whole New Mind: Why Right-Brainers Will Rule The Future". He also is the author of DRiVE: The Surprising Truth About What Motivates Us".

In this talk, Dan Pink talks about research in the behavioral/social sciences that has been ignored by the business world. There is a mismatch between what science knows and what business actually does. Carrots and sticks are so 20th Century! 






What really matters is the right-brain, creative, conceptual kinds of abilities, according to Pink. We are all dealing with the "candle problem". Old ways just won't, and don't work. What worries Pink, is that too mahny organizations are making decisions based on outdated, unexamined assumptions. The solution is not to do more of the wrong things, but to encourage autonomy, mastery, and purpose (in the service of something bigger than ourselves.) Do we want compliance, or engagement?

Multi-touch and Flash: Links to resources, revisiting Jeff Han's TED 2006 presentation

Despite the increase in interest in systems that support multi-touch, multi-user multimedia interaction, there is a need for creative, tech-savvy types to develop innovative applications. Why? This technology has the potential to make a powerful impact on how people learn, communicate, solve "big picture" problems, and do their various jobs.

CNN's Magic Wall was one of the first applications to gain the attention of the masses, as it was used as an interactive map during the US presidential election process. Touch-screen interaction gained even more notice after the recent SNL parody by Fred Amisen.

If you think about it, the multi-touch applications you see on the news aren't much different than what you'd get from a "single-touch" program.

Fancy, yes. Truly innovative, no.

Just imagine a 3D multi-touch, multi-user, multimedia version of Google Search. I did. I put my sketches in my idea book and hurt my brain thinking about how it could be coded.

Jeff Han, the man behind Perceptive Pixel and CNN's magic wall, had much more up his sleeve when he demonstrated his work at TED 2006. Even if you've previously seen this video, it is worth looking at again. (I've provided a link to the transcript below.)



Transcript of Jeff Han's TED 2006 Presentation

This video presentation had a transformational effect on me as I watched for the first time. Jeff Han brought to life ideas that were similar to my own as a beginning computer student thinking about collaborative educational games and multimedia applications that could be played on interactive whiteboards.

Here are some selected quotes from the video:

"I really really think this is gonna change- really change the way we interact with the machines from this point on."

"Again, the interface just disappears here. There's no manual. This is exactly what you kind of expect, especially if you haven't interacted with a computer before."

"Now, when you have initiatives like the hundred dollar laptop, I kind of cringe at the idea that we're gonna introduce a whole new generation of people to computing with kind of this standard mouse-and-windows pointer interface. This is something that I think is really the way we should be interacting with the machines from this point on. (applause)"

"Now this is going to be really important as we start getting to things like data visualization. For instance, I think we all really enjoyed Hans Rosling's talk, and he really emphasized the fact that I've been thinking about for a long time too, we have all this great data, but for some reason, it's just sitting there. We're not really accessing it. And one of the reasons why I think that is, is because of things like graphics- will be helped by things like graphics and visualization and inference tools. But I also think a big part of it is gonna be- starting to be able to have better interfaces, to be able to drill down into this kind of data, while still thinking about the big picture here."

So now what?

A recent post by "Alex", on the AFlex World blog discusses a few solutions. Alex had a chance to meet with Harry van der Veen and Pradeep George from the NUI Group, and Georg Kaindl, a multi-touch interaction designer from the Technical University of Vienna. The focus of the discussion was to come up with ideas to encourage Adobe/Flash designers and developers to learn more about multi-touch technology and interaction, and take steps to create innovative applications.

I especially like the following quote from the post:

"...A quick quote from our conversations: “When our children will walk up to a display, they will touch it and expect to do something.”

As a techie and a school psychologist, I see an immediate need for innovative applications. I know that there is a built-in market in the schools, at least for low-cost applications. Despite economic constraints, many school districts continue to invest in interactive whiteboards (IWB's). They are cropping up in preschool and K-12 settings, and teachers are searching for more than what's currently available.

Interactive, collaborative applications are needed in fields such as health care, patient education, finance & economics, urban planning, civil engineering, travel & tourism, museums & exhibitions, special events, entertainment, and more.

Smart Technologies, the company behind SmartBoards, has a new interactive multi-touch, multi-user table designed for K-6 education, the Smart Table. Hewlett Packard has several versions of the TouchSmart PC, which can support at least duo-touch, if not multi-touch, multi-user applications. There are numerous all-in-one large screen displays on the market that support multi-touch and multi-user interaction.

Quotes from Harry van der Veen, of Multitouch NL:

"In 10 years from now when a child walks up to a screen he expects it to be a multi-touch screen with which he can interact with by using gestures."

"...multi-touch screens will be as common as for children is the internet nowadays, as common as mobile phones are for us."


Here is a quote from a conversation I had with Spencer, who blogs at TeacherLED.

"It was interesting this week as I was in a classroom with a teacher who I've not worked with before... he had 2 students using the whiteboard who kept touching it together by mistake. The teacher, exasperated, said to himself, "Why can't they make these things to accept 2 touches without going crazy!"

Proof of the demand! I think you are right when teachers spot the limitations and then see the technology on visits to museums, that might stimulate demand."

Spencer creates cool interactive mini-applications, mostly for math, using Flash, that teachers (and students) love to use on interactive whiteboards. (He's interested in multi-touch, too.)


So what are we waiting for?!

Related:
Natural User Interface Europe AB meets Adobe
Georg's Touche Framework
NUI Group
TeacherLED
Interactive Touch-Screen Technology, Participatory Design, and "Getting It".
Hans Rosling's 2007 TED talk

Engaged Learning Revisited: Four videoclips for reflection....

Last October, I shared a couple of videos to highlight a discussion about engaged learning in a post on my TechPsych blog. Today, I received a thoughtful comment from a teacher who was moved by the videos. I thought that I'd recycle that post and add two other videos that provide related messages in ways that can not be conveyed effectively by words alone:

From the October TechPsych post:
Those who follow my blogs know that I usually focus on the positive- engaging technologies, exciting research, interesting websites, and successes of others worth sharing. Today I came across a video that got me thinking about the importance of engaged learning, a topic I've written about in the past.

Much effort is extended in our high schools to prepare students for the "real" learning that will take place in college. With the increased emphasis on testing, it seems like the moment a child enters kindergarten, one of the main goals is to prepare for learning the skills needed in the following grade. Every student must be "ready".

Ready for....this?


In today's digital world, traditional word-based instruction doesn't always result in experiences that engage the hearts and minds of young people.

The video below was created by students involved in the Digital Ethnography group at Kansas State University. Michael Wesch is the professor behind this group. At the beginning of the video, the camera slowly peers around an empty university lecture hall, with the the following quote superimposed over the scene:

"Today's child is bewildered when he enters the 19th century environment that still characterizes the educational establishment where information is scarce but ordered and structured by fragmented, classified patterns, subjects, and schedules." -Marshall McLuhan, 1967

Although the quote is now forty years old, the message communicated in this video is clear. Despite technology, things haven't really changed, as traditional methods of teaching tend to disengage rather than engage a good number of students.



After viewing the above video, watch this video, "When I grow up I want to be a teacher", a parody of a Monster.com commercial.



For a broader perspective, take some time to reflect on the following video, originally created by Karl Fisch, and posted to his blog, the Fischbowl:
"A staff development blog for Arapahoe High School teachers exploring constructivism and 21st century learning skills. The opinions expressed here are the personal views of Karl Fisch - and various other teachers at Arapahoe - and do not (necessarily) reflect the views of Littleton Public Schools."

DID YOU KNOW? SHIFT HAPPENS


"DEBUNKING THE MYTHS OF THE THIRD WORLD" is Hans Rosling's presentation at TED 2006 is a great example of the use of presenting information supported by engaging information techniques. More videos are on the Gapminder website. This video is about 20 minutes long, but worth every second.



"With the drama and urgency of a sportscaster, Prof. Hans Rosling uses software from Gapminder debunks a few myths about the "developing" world. This global health visionary has discovered a powerful new way to communicate complex data about the world; his remarkable interactive graphs help deliver profound insights about global trends and will change forever the way you think about "us" and "them." Rosling is professor of international health at Sweden's Karolinska Institute, and founder of Gapminder, a nonprofit that brings vital global data to life."

Video: Photosynth Demonstration

Microsoft Live Labs: Photosynth

"The Photosynth Technology Preview is a taste of the newest - and, we hope, most exciting - way to view photos on a computer. Our software takes a large collection of photos of a place or an object, analyzes them for similarities, and then displays the photos in a reconstructed three-dimensional space, showing you how each one relates to the next.

In our collections, you can access gigabytes of photos in seconds, view a scene from nearly any angle, find similar photos with a single click, and zoom in to make the smallest detail as big as your monitor."

It looks like PhotoSynth has the potential to be used in creative, engaging ways in educational settings, especially for visual learnings. Imagine what students could do if given the opportunity to interact with PhotoSynth content on large screen displays!