2015 Summer Technology Camp

The Reality Capture Technology Training Center at History Park.

2015 Summer Technology Camp Project:

The Historic Zanker House; Home of The African American Heritage House 

This fly-through video of the Historic Zanker House at History Park in San Jose developed and completed by Minh Chau Doan, an 11th grade student at San Jose's Notre Dame High School.
 The point cloud contains more than 400,000,000 data points and was developed using a FARO Technologies 3D Focus Laser scanner.

Built in 1868, the Zanker House was moved to History Park
in 1987 and restored in 1988

Project Powered by FARO
Technologies

2015 Reality Capture Technology Camp

The Historic Zanker House at History Park...

Zanker House at History Park

is the focus for this year's week long Reality Capture Technology Camp. Built in 1868, the home of William F. Zanker, his wife and eight children was originally located on Zanker Road in Alviso. The Zankers grew strawberries, asparagus and pears on their ranch.

The house was moved to History Park in 1987 and the restoration was completed in 1988. The Zanker house is home to the African American Heritage House at History Park.

This year's program will focus on the exterior and interior documentation of the historic house.
Students will start by scanning and producing a point of the the home. The students will register the point cloud data and develop a brief fly-through video of the project. Once the registration process is complete, the students will be given an opportunity to complete an independent laser scanning project. The week long program will conclude with a second more detailed digital documentation of the Zanker house. This second scanning process will include colorized laser scans.

FARO 3D Focus Scanner w/
FARO Freestyle Scanner

This year, we'll be working exclusively with FARO Technologies scanners for our summer documentation projects. The FARO 3D Focus will allow students to laser scan and texture map their work with the press of a button. 

The FARO Freestyle handheld laser scanner will be used to document some of the larger artifacts in the Collection Center. This will be my first time using the Freestyle and I am excited to see what the capabilities of this new product are and how we might be able to use it for our ongoing projects. If it is anything like FARO's other products, we are sure to be pleased.

Given last summer's documentation of the historic Santa Ana One Room Schoolhouse, it made perfect sense to document the building in closest proximity; the Zanker House. The laser scan below was taken during last summer's project. The Santa Ana Schoolhouse is located in the center of the image. The house on the far right of the image is the Zanker House. 

Last Summer's Project
The Santa Ana One Room Schoolhouse

We look forward to the project at hand and we are excited about all the wonderful possibilities. A special thank you to all of our partners and supporters; History San Jose, Matt Daly of FARO Technologies, Preservation Action Council. 

Reality Capture Technology Summer Camp

Coming July 2015

The Reality Capture Technology Training Center will host our second annual summer technology camp at History Park in San Jose. The week long camp provides participants with hands on experience using state of the art laser scanning and photogrammetry technology to digitally document the historic buildings and artifacts at History Park. The data from the buildings and artifacts documented by the student/participants becomes part of the History San Jose archives and will eventually be featured in a major 3D exhibition.

Laser Scan from 2014 Summer Camp
by Aaron and Adam Rhetta

 Current reality capture technology allows users to collect billions of point measurements fast and safely, then register scans to create an accurate photo realistic unified 3D point cloud model. The overall benefit of the 3D model is extreme accuracy of the data collected and the ability to seamlessly transfer knowledge and information from user to user, user to client or user to the general public.

Whether you have an interest in art, animation, architecture, building/construction, design, engineering, forensic investigation, geomatics, operations or surveying, reality capture technology will play a major role in the future of these and related vocations.

Laser Scan by
Brittany Bradley and Liz York
JFK University

We are looking for students from 8th grade through 12th grade who are interested in participating in the summer technology camp.Students must be residents of Santa Clara County and must commit to the entire week long program.

We are also looking for college interns with an interest in architecture, computer science (software), construction, engineering, photography, surveying or related fields who are interested in learning about new technology.

Laser Scan X Section of
the Historic Pasetta House

Camp Schedule:
July 13th   9:00am to 4:00pm
July 14th   9:00am to 4:00pm
July 15th   9:00am to 4:00pm
July 16th   9:00am to 4:00pm
July 17th   9:00am to 4:00pm

...at the Historic Pacific Hotel at History Park in San Jose. 

Leica 6000s
Laser Scanner

Registration begins Monday May 18th
for information, email Brian Miller at: 
brianmiller@nventum.net

Laser Scan of Associated Oil Station at History Park w/300,000,000 Data pts.

The Kelley House
...Let's Talk About The Project
The opportunity to document such an iconic San Jose home was one we had been looking forward to for quite some time. Knowing the home was scheduled to be demolished added a level of urgency and a unusual sense of concern. There are no mulligans, no "do-overs"; the process has to be thorough, detailed and correct the first time. With many projects, you can take data back to the office for processing. If you happen to find that rare error, you can go back and re-scan the area in question and correct the problem. This is not one of "those" projects; the Kelley House has been scheduled for demolition. 

Some may wonder what is the value of laser scanning a building that has been totally destroyed by fire and water damage. What can we learn from the scans? What can be done with the data collected and why is this important?

Though the structure is a total loss, there is a lot of information that can be retrieved from laser scans. For example, the fire exposed the inner walls and ceilings and several areas of the home. The construction materials and methods used at the turn of the century, when the home was constructed are clearly visible. The exterior and interior walls of the home are heavily damaged but still intact. Laser scanning the building will give us the first millimeter accurate floor plan of the 100 year old historic home. 
From a forensic investigation perspective, a detailed point cloud of the home would allow investigators to trace and document the origins of the fire. These are a few of the things we can learn from the laser scanning process.

Beautiful Crown Molding
In the Library

In addition to extracting information from the point cloud, the user(s) can add/store information about the home within the point cloud using BIM software. Everything from notes about the type of materials and methods used to construct the custom bookshelves to details about the craftsmen that built the home's custom solarium can be downloaded into the software. This can provide a wealth of information for researchers, students or for anyone interested in the reconstruction of the home.
Now that the data has been collected, what do we do with it? I mentioned we could use BIM software and download a bunch of information about the building into the point cloud. 
We can model the existing data we've gathered.
We can also virtually reconstruct the house using a combination of the laser scans  historic photos. 
We can use the data collected to create training curriculum for the RCTTC. (..and we will!)
We can build an exhibit for the Preservation Action Council, Kelley Park and History San Jose.
Anything is possible, but first we must capture the data. 

It's critical that we capture the data as accurately and quickly as possible. For this reason, I decided to utilize both the FARO 3D Focus Laser Scanner and the trusty Z&F 6000 scanner to capture and document the home. Redundancy is a good thing... One of the challenges of this

project was capturing colorized laser scans of the property. The home was/is surrounded by dense, heavy foliage that creates lots of shadows and limits lighting both inside and outside of the home. For those who are familiar with laser scanning understand that while the laser requires no light at all, creating colorized laser scans involves the use of cameras. Of course, cameras do require light to capture detail and this is where the challenges begin. In addition to the heavy foliage, power to the house was destroyed during the fire. I didn't bring a generator therefore artificial light sources were not a viable option. The only thing I could do is rely on the FARO scanner settings to adjust for lighting deficiencies; not the best option but the most reasonable given the circumstances. The other "quick fix" would be to eliminate the colorized scans completely, therefore nullifying the lighting concerns. I decided to document the home and attempt to capture colorized scans of the the interior and exterior. 

I started by scanning the exterior of the home on the first day. Due to the heavy foliage and abundant shade, I set the scanner for an "Outdoor Cloudy" setting. Several times during the

scanning process, FARO's built in camera had trouble with the heavy shade and intermittent but very bright sunlight coming through the trees. At one point, I considered not using the camera at all. Not using the camera would eliminate the lighting issues, save power and save time. However, for reasons of consistency, I decided to continue to use the camera for all the scans. After all, you can never have too much data. If the quality of the colorized scans is not up to par, we can always discard the photos and still have an extremely accurate historic record of the home.

Kelley House Library

Day three of the project brought us inside the home for to begin scanning the second floor. This was one of the more nerve racking parts of the entire job. The area was hazardous to put things politely. The damage from the fire was extensive and had been exposed to the elements for 34 months. The near "monsoon" rains we had a couple of weeks earlier didn't help matters much. There were areas of the floor where you could see from the second floor clear through to the basement. I was not only focused on the job, I was also ever aware that each step I took had the potential to send me through the floor and possibly through to the concrete basement below. The hazards of a collapsed, fire damaged roof and floor were not the only things to look out for. The abandoned home had become a haven for all types of critters, big and small. In three days of scanning, I saw a fox run from the basement, I saw a raccoon on the

Second Floor Landing

back porch and the smell of highly irritable skunk was evident each morning and afternoon. So, as you were watching your step to avoid falling through the floor, you were also watching to avoid putting you foot or your tripod in a pile of "critter scat". Under these conditions is where the FARO 3D Focus laser Scanner really shines. The light weight, compact size made it the ideal tool for working in such a restrictive environment. Using any other scanner under these circumstances would have been a MAJOR undertaking.

 Day four was the beginning of the documentation of the first floor of the house. For this portion of the project, we decided to use the Z&F 6000 laser scanner. The difference in the scanners we used is significant and operation of both scanners on this project highlighted those differences. The range on the Z&F scanner is dramatically superior to the FARO. This allowed us to capture targets and detail of areas that we couldn't capture with the FARO. An area that we could capture in 2 scans with the Z&F would take 4 or 5 scans with the FARO. In some ways, the range of the Z&F makes up for the size and lack of mobility when compared with the FARO, in theory. (...Try telling that to a person(s) who are carrying the scanner and supporting equipment up and down several flights of stairs.) Given the lighting problems we encountered inside the house, the colorized laser scans would be more problems than they were worth. Though the Z&F scanner does not have a built in camera, it also doesn't have a lot of settings and options. It is pretty straight forward; set the scanner resolution, press the button and let it do it's job. Operating the FARO 3D Focus takes much more consideration and requires attention to the settings before each scan in order to guarantee the best quality product.

Custom Redwood Bookshelves
Kelley House Library

Combining the data from two different scanners used to be problematic however FARO Scene does except data collected from Leica and Z&F scanners. The key to processing the data is to convert the scans to aPTX. file. We are currently processing the data; registering all 120 scans from both scanners in FARO Scene. We expect to have the project completed and turned over to our client by the first of next week...Stay tuned for the next step in the Kelley House Project.https://www.facebook.com/pages/Reality-Capture-Technology-Training-Center-at-History-Park/304789553009310