Jefferson Y. Han
Encyclopedia
Jefferson Y. Han is a research scientist for New York University
New York University
New York University is a private, nonsectarian research university based in New York City. NYU's main campus is situated in the Greenwich Village section of Manhattan...

's (NYU) Courant Institute of Mathematical Sciences
Courant Institute of Mathematical Sciences
The Courant Institute of Mathematical Sciences is an independent division of New York University under the Faculty of Arts & Science that serves as a center for research and advanced training in computer science and mathematics...

, and one of the main developers of "multi-touch sensing
Multi-touch
In computing, multi-touch refers to a touch sensing surface's ability to recognize the presence of two or more points of contact with the surface...

," which unlike older touch-screen interfaces was able to recognize multiple points of contact.

Jeff Han also works on other projects in the fields of autonomous robot
Autonomous robot
Autonomous robots are robots that can perform desired tasks in unstructured environments without continuous human guidance. Many kinds of robots have some degree of autonomy. Different robots can be autonomous in different ways...

 navigation, motion capture
Motion capture
Motion capture, motion tracking, or mocap are terms used to describe the process of recording movement and translating that movement on to a digital model. It is used in military, entertainment, sports, and medical applications, and for validation of computer vision and robotics...

, real-time computer graphics
Real-time computer graphics
Real-time computer graphics is the subfield of computer graphics focused on producing and analyzing images in real time. The term is most often used in reference to interactive 3D computer graphics, typically using a GPU, with video games the most noticeable users...

, and human-computer interaction.

He presented his multi-touch sensing work in February 2006 at the TED (Technology Entertainment Design) Conference in Monterey, California. TED released the video online 6 months later and it spread quickly on YouTube
YouTube
YouTube is a video-sharing website, created by three former PayPal employees in February 2005, on which users can upload, view and share videos....

.

Han has founded a company called Perceptive Pixel
Perceptive Pixel
Perceptive Pixel, Inc. is a company specializing in research, development and production of multi-touch interfaces. The company was founded in 2006 by Jeff Han, who publicly demonstrated multi-touch hardware and software technology at the TED...

 to develop his touch screen technology further, and he has already shipped touch screens to parts of the military. Han's technology has been featured most notably as the "Magic Wall
Multi-Touch Collaboration Wall
The Multi-Touch Collaboration Wall is a large monitor invented by Jeff Han that employs multi-touch technology, and is marketed by Han's company,Perceptive Pixel. Han initially developed the technology for military applications...

" on CNN
CNN
Cable News Network is a U.S. cable news channel founded in 1980 by Ted Turner. Upon its launch, CNN was the first channel to provide 24-hour television news coverage, and the first all-news television channel in the United States...

's Election Center coverage

Han graduated from The Dalton School
The Dalton School
The Dalton School, originally called the Children's University School, is a private university-preparatory school on New York City's Upper East Side and a member of both the New York Interschooland the Ivy Preparatory School League...

 in New York in 1993 and studied computer science
Computer science
Computer science or computing science is the study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems...

 and electrical engineering
Electrical engineering
Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical...

 for three years at Cornell University
Cornell University
Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...

 before leaving to join a start-up company to commercialize the CU-SeeMe
CU-SeeMe
CU-SeeMe is an Internet videoconferencing client. CU-SeeMe can make point to point video calls without a server or make multi-point calls through server software first called a "reflector" and later called a "conference server" or Multipoint Control Unit...

 video-conferencing software that he helped develop while an undergraduate at Cornell.

Han was named to Time Magazine's 2008 listing of the 100 Most Influential People in The World.

External links

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