Joined BICG @ University of Washington

I’m happy to announce that as of Dec 3, 2013, I’ve joined University of Washington’s Biomedical Image Computing Group as Senior Fellow under the direction of Professor Colin Studholme PhD. I am honored to be part of this amazing lab that has done some inspiring work ever since it was formed at UCSF and now relocated to UW. For more information about the lab, you can take a look at it’s website here: BICG

I hope to wrap up my work on Alzheimers Disease and move on to work on the development of more challenging image analysis techniques with the Neonates / Fetal population that BICG work with. Exciting times!!

It’s official! I’ve got my PhD

December  9, 2013



Dear Mr. Sinchai Tsao:


Congratulations!  The Degree Progress Department is pleased to inform you that your Doctor of Philosophy in Biomedical Engineering degree has been conferred and posted to your academic transcript at the University of Southern California. ….

Google Wifi Antenna (Originally posted Aug 4, 2008)

Originally Posted Aug 4, 2008, 10:19 PM

Google Wifi setup at my fiance’s home…. Yes, I had to get on the roof to do this!

Total Cost: $200-ish can’t remember now – Might be less

Total Time: Took me 2 weekends to get the right parts but to setup its FAST.

** I’ve added steel cables to stabilize the pole. 3 cables from the pole to the roof.


  1. Metal Pole / Pipe (I got a pipe from a Hardware Store) Make sure the gauge fits the Hawking Antenna mounting kit and the U bracket you will use to mount to the roof.
  2. Hawkings Technology – HAO14SDP

    2.4GHz Hi-Gain Directional 14dBi

    Outdoor Directional Antenna

  3. Hawkings Technology – If you need more outdoor length the cable that came with the antenna was too short for me. [HAC30N] N-Plug Outdoor Cable Extension 30 feet (for Outdoor Antenna kits) (There’s also a 10 feet version)
  4. Peplink Surf
  5. Nice Cheap and Good Router —-> Linksys (NRT54G)
  6. Ethernet Cable to Connect Peplink Surf to Linksys


  1. Determine where the closest Google Wifi Access point is: See map ( and drive around to find the little boxes with ET antennas mounted on top of light poles.
  2. Test the Hardware works properly and you have all necessary parts
    1. Connect the antenna to Peplink Surf (remove the existing antenna) using the Extension Cable
    2. Connect the Peplink Surf to a Laptop/PC and follow Peplink Instructions
    3. See if you can get a signal to Google Wifi – point the antenna towards the google access point (if you can connect, you’re all set)
  3. Determine where you want to mount the antenna. You need to mount one end of the pole to the roof. I just used the old TV antenna mounting location.
  4. Determine how you will get the Outdoor Antenna Cable into the house. (I just slipped it under the door to the laundry room)
  5. Mount the Antenna to the pole (Mounting kit is included).
  6. Drill holes to add the U bracket to the roof if necessary.
  7. Rotate the antenna so that its facing the Google WiFi access point.
  8. Repeat Step 2 with the antenna on the roof. Rotate the antenna and adjust pitch until the PepLink software indicate you have the best signal (Takes a bit of trial and error, I suggest NOT bringing your laptop to the roof (for safety reasons and just have someone call up whether its better or worst as you adjust the antenna)
  9. tighten the Antenna Mounting Bracket so that the position is fixed
  10. Add stablizing cables if necessary.
  11. Follow the Hawkings technology instructions to tape the cable joints and ground the Antenna
  12. Secure the Antenna Cabling
  13. Configure the wireless router (See router instructions)
  14. Turn off the Peplink Surf and the wireless router
  15. Connect the peplink to the wireless router’s ethernet “UPLINK” jack instead of your PC
  16. Turn on power to Peplink Surf (Wait until its online see status lights)
  17. Turn on power to the Wireless Router
  18. YOU’RE DONE!!!


The Peplink Surf does support Power over Ethernet (POE) so technically you can have a short external cable that goes from the Antenna to the Peplink Surf and have a standard cat 5 / cat 6 cable that connects to the Peplink Surf that supplies both power and a network connection to you router. This is idea if you have an air duct or attic crawl space where you could mount the Peplink Surf, then you get less signal degradation over the antenna cable. The less distance between the Peplink Surf and the Antenna, the more idea the signal should be.

Hope this helps!

For more info see:

Google Wifi Site (

Google Wifi Help Group (

I’ve compiled ttk-1.4.0 for Mac OS X Darwin / Mountain Lion. Click the link at the bottom of the page for download.

For more information:

The Tensor Toolkit (TTK) is an extension of ITK ( to process diffusion tensor images and perform operations such as tensor estimation, smoothing, fiber tractography or statistical analysis.


2008/12/9 – Engineers as Teachers [ USC VSoE News ]


Undergraduate and graduate engineering students learn the value of teaching in a Viterbi School community outreach program.
December 09, 2008 —How do you explain the workings of a generator to a 10-year-old? You identify the big ideas (magnetism, electrons, electricity and change in electric field), use simulations and videos to explain the concept, have the students build their own generator, and then get students to analyze their learning.  In the process, you’ve just learned to teach!

Sinchai Tsao, a doctoral candidate in the Biomedical Engineering Department, shows students MRI images of the brain and other parts of the human body.

Welcome to “Engineers as Teachers.”  The course is organized and supported by a non-profit, Iridescent, and by three Viterbi School engineering departments: Aerospace and Mechanical (AME), Biomedical Engineering (BME) and the Epstein Department of Industrial and Systems Engineering (ISE).  Undergraduates from these departments sign up for three technical elective units and go through a 13-week training program. The goal of the program is to inspire inner-city children to strive to be scientists and engineers.  In return engineers learn how to communicate complex ideas to large, diverse audiences.

“These are very valuable skills if you want to have a powerful career in any field,” says Tara Chklovski, president and CEO of Iridescent.

The program has been running for three semesters, Chklovski says.  “In 2008 alone, 107 engineers — professionals, undergraduate and graduate students — went through some training and taught 1,600 children and parents. (See link for program statistics.) The courses are taught either during school hours or after school and each course consists of five, two-hour sessions, held once a week.  We also invited families to the courses held after school, so that parents are empowered to support their child’s interest in science.”

Course topics developed this semester ranged all the way from the physics of MRI (magnetic resonance imaging) to animal locomotion.  Sinchai Tsao, a Viterbi School doctoral candidate in BME who is concentrating on medical imaging under adviser Manbir Singh, a PhD researcher, has been co-teaching the MRI course.  The course was held at College Ready Academic High School, an inner city charter school at the corner of S. Western Ave. and Martin Luther King Blvd.

Ben Vatterott, a senior AME student, demonstrates buoyancy in a lesson on the physics of sailing.

“Sinchai used beautiful medical images as a motivation for students to learn key physics concepts, such as the physics of waves, as well as electricity and magnetism, concepts central to MR Imaging and that high school students need to master to become college ready,” Chklovski says.  “He found the experience invaluable in helping develop confidence to present key fundamental concepts, many of which he hadn’t revisited in awhile. “

“My students helped me question my own intuition about key concepts that I took for granted.  They also challenged me to express complex concepts in an intuitive and logical manner,  which are all key skills that are central in my training as a PhD,” says Tsao.

In addition to lesson plans and curricula, Tsao and Hu also helped design some unique instructional materials, such as science posters and T-shirts, to help students remain excited about science and be proud of their learning.

Guru Sundar, biomedical “senator” in the Viterbi School Graduate Student Association, just joined Iridescent this past semester. He taught a single session on cardiovascular mechanics at Palms Elementary with two USC BME graduate students, Heidi Gensler and Man Nguyen.

“Iridescent has a dual purpose that may not be immediately apparent,” says Sundar.  “In addition to serving the children, Iridescent provides a way for senior undergraduate and graduate engineers to develop and refine their communication skills. It is a double-edge sword that I see great potential in. The fourth grade children at Palms were instantly captivated by our lesson on how the heart works. It was rewarding to observe them enjoy their learning.

Three Viterbi women engineers inspired the young students to believe that women can be engineers.  When asked to draw a picture of an engineer, 75 percent of the students drew pictures of girls in the role.

“I hope to continue with Iridescent in the coming years and reach out to high schools, where I can serve as a teacher and a mentor,” he continued.  “After four years at Cornell University and a few months here at USC, I have many experiences that would benefit today’s growing youth. The decision to pursue an engineering degree has opened up many doors for me, and Iridescent will give me the opportunity to advocate this idea to the growing children.”

Emily Hedges, Kimberly Popp and Robyn Strumpf – all “Engineers as Teachers” alumni — came back this semester to conduct three separate Family Science Courses at Trinity St. Elementary, Shenandoah St. Elementary and Foshay Learning Center. The topics were animal locomotion and sports science.  The courses were funded by American Association of University Women and USC’s University Neighborhood Outreach (UNO) program.

“The three women engineers leading the courses inspired the audience to believe that women can be engineers too,” Chklovski says.  “We asked the course participants to draw what an engineer looked like and 75 percent of them drew a girl making a rocket, an airplane or a car. This is highly unusual, because the answer to this question is usually a picture of a white, male, scientist with frizzy hair.”

Robyn Strumpf, right, a mechanical engineering, political science and engineering management major, brings materials science to sports by teaching students about rubber polymers and what makes rubber bouncy.

Hedges and Popp taught participants about drag, thrust, viscosity and buoyancy with the aim of showing them how different animals adapted to move in different environments. Strumpf taught participants about why different sports equipment is made out of particular materials. For instance, participants learned about the materials used to make baseball bats by measuring the deflection properties of wood, aluminum and steel. They also learned about why some materials are appropriate for basketballs and others for tennis balls by making their own bouncy balls according to Chklovski.

Participant learning and change in interest was measured through pre-and-post-test and Exit Slips — three questions that tested understanding of the concept — at the end of each session.

Courses conducted by current students Daniel Orr, Nathan Heussenstamm, Kelly Phillips, Loni Iverson, Ben Vatterott and Torey Raphael focused on renewable energy, optics and the physics of sailing.  Students designed five lessons, complete with pre-and-post assessments, exit slips and hands-on activities. They practiced explaining the concepts during training and then taught the courses in sixth, seventh and eighth grade classes at View Park Preparatory School, a charter school that is part of the Inner City Educational Foundation.

“Engineers as Teachers” is rapidly growing to be a powerful movement, Chklovski reported.

“The program is appealing to both the engineers and to the inner-city community,” she said.  “Engineers learn that communicating science in exciting ways is a vital skill. Children learn what it means to be an engineer, what is exciting about it and how they can prepare for a successful career.”