How Multi-Camera Hardware Helped a Construction Company

Welcome to another edition of “Customer Stories”. This is a series in which we feature in-depth testimonials and interviews with companies who use photogrammetry and bullet time applications – analysing their work to help other multi-camera setup owners. 

Today’s interview is with John Archibald, the Data Processing Engineer at Structural Technologies. He specialises in capturing images of structures and processing them into data which is used to facilitate virtual inspections for clients. 

John bought ESPER triggering and powering hardware to build a specialised photogrammetry setup design for scanning in very confined spaces. 

Photogrammetry in dirty and hard to access places…

Structural Technologies develops and integrates products, engineering support, and repair and maintenance services to provide value-added solutions throughout the construction industry. We work on various structures from skyscrapers to universities to nuclear power plants.

Our mission – making structures stronger and longer lasting.

I work in the research and development division. We specialise in the data acquisition of a structure’s concrete to perform a strategic inspection for repair work.

The better the image capture, the better the data we can extract. This makes it easier for us to get the best understanding of potential construction repair and thus puts us ahead of the competition. 

Because data acquisition is crucial we needed a photogrammetry setup that would provide the client with really high-resolution virtual inspections. These haven’t been possible in the past and this is a market differentiator for us. 

Dropping the “homemade trigger” approach

First, I needed hardware that would allow us to remotely trigger all of the cameras in the array. 

And we had two options…

Making it in-house by fabricating an electronic circuit, or buying something already available on the market. 

The price of the readymade product was comparable to a day, or a few days, of our team’s work. But there are always a bunch of risks involved that could end up consuming more man-hours by trying to pursue a solution. 

So we decided to try the solution available on the market – the TriggerBox

We were really excited to test it. Once it arrived and we tested it I immediately knew it was the right decision. There was certainly no need to spend any more time thinking about homemade solutions. 

This gave us great peace of mind.

Everything worked; the interface was super easy to use and overall it was an amazing out-of-the-box solution.

“Software interface is really well designed, intuitive. Hardware works really well to the point where my boss said “When (4 cameras) fire simultaneously it sounds like a single camera!” Saved my team time, effort, and money. Very nice product – I feel lucky to have found this company.”

JOHN ARCHIBALD – DATA PROCESSING ENGINEER | STRUCTURAL TECHNOLOGIES

We no longer had to worry about anything going wrong. We know that the units have been tested by you and there is a guarantee and support in case we need it. One less headache with these neat little boxes!

But there was a hardware communication aspect which worried me. 

Our photogrammetry setup needed to integrate with a computer during the data capture so I was concerned that I would need to learn an API or learn how to create a custom interface.

But it turned out to be as simple as learning 6 commands and putting a separate microcontroller to communicate in the serial codes to have full control of the TriggerBox. 

Your controller software was super convenient and very simple to use for me. It already had all the necessary functions built in so it only took me an hour to set everything up.

Powering photogrammetry setup without charging or changing the batteries

Powering a convenient mobile photogrammetry setup of expensive cameras was a challenge.

We work in remote places that are dirty and hard to access. Bringing cameras in for an extended period of time necessitates different ways to power them simultaneously.

When first searching for the remote triggering mechanisms that led me to the TriggerBox, I quickly realized the usefulness of the PowerBox – this is exactly what we need. 

But I was super hesitant to use anything other than the factory supplied batteries because I didn’t want to damage the cameras. I was also worried that a 9V power capability on PowerBox would not be good for a camera with a 7.4V battery.

“I needed a way to conveniently power multiple expensive cameras. I was super hesitant to use anything other than the factory supplied batteries because I didn’t want to damage the cameras. A little reassurance from the ESPER staff and initial experimentation showed me that I had no need to be hesitant because this product works flawlessly.”

JOHN ARCHIBALD – DATA PROCESSING ENGINEER | STRUCTURAL TECHNOLOGIES

Customer service has been very friendly and helpful.

A little reassurance from the ESPER staff and initial experimentation showed me that I had no need to be hesitant because this product works flawlessly. All of the cameras in the array are supplied with constant regulated power. 

Getting new clients with unique scanning offerings

There are not really many other products like it that I’ve found. 

Getting hands-on with the TriggerBox and PowerBox was one of the first steps that we took to make this photogrammetry setup a possibility and not just something that was kind of imaginary or a vague idea. 

Once we had your hardware and tested it we knew that we could actually get this system made which will open new opportunities for us. Our prototype launch was very successful and this was a big step forward for us.

It has allowed us to create something new that our company has never used before (scanning with multiple cameras in these hard to access locations), which will allow us to appeal to more clients and win work that we otherwise may not have been able to win.

Click here to learn more about ESPER TriggerBox and PowerBox.

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Multi-Camera Distributor Advances the Assembly of Photogrammetry Setups with ESPER

In our “ESPER Customer Stories” series we speak with the owners of multi-camera and photogrammetry setups to see how they improved performance with ESPER hardware. 

Today’s interview is with Anel Lazcano, Product Manager at HCG Technologies, a leading supplier of multi-camera solutions and motion capture equipment in Latin America.

His team found new clients by making their photogrammetry setups mobile and more effective, which improved the creation of digital doubles and props in CGI production pipelines. 

Let’s dive in.

Meet HCG Technologies

HCG Technologies specialises in providing innovative multi-camera technologies such as motion capture and photogrammetry for the entertainment, engineering and health sciences industries in the Latin American market.

With over six years of experience, we have supported major educational institutions such as UVM, brands including Mercedes Benz, and several movie producers. 

Our goal?

To provide the most innovative and productive multi-camera systems in the industry to clients looking for new ways to get CG production projects done more effectively, but who lack the internal departments to do so.

Setting up a photogrammetry system can be a pain at times…

Typical projects involve the creation of face, body and object 3D models using photogrammetry setups, but we are also involved in brand activations using bullet-time effect. 

So our 64 Canon Rebel T6 setup is often reconfigured depending on client requirements. 

Before getting our hands on ESPER equipment we used PC software to fire all of the cameras at the same time through USB – this wasn’t ideal.

What’s more, we had to create a mobile solution since we often travel to different universities around Mexico and within Latin America to showcase our product. Carrying so much gear to different locations can be frustrating!  

These were some of the objectives we needed to achieve:

1. Reliability – Shooting all cameras through the software wasn’t too bad, but we had a lot of delays and irregularities which we couldn’t allow to happen when distributing the system. 

2. Professional Look – There was no other company that offered a “plug-n-play” solution for triggering and powering multiple cameras. A homemade solution was an option but since we work with different clients that are very strict on how our systems look we needed something more slick and professional. 

3. Time Efficiency – I wouldn’t say that setting up a photogrammetry system is too complicated, but it can be very time-consuming since we have to connect hundreds of cables every time we install the system at a new location.

“We realized that there was no other company that offered a “plug-n-play” solution for triggering multiple cameras. We considered manufacturing our own homemade solution but since we work with different clients that are very strict on how our systems look we needed something more slick and professional. ”

ANEL LAZCANO – PRODUCT MANAGER | HCG TECHNOLOGIES

Combining multi-camera hardware for better growth

This was the first time we’ve used products like this!

At first we were a little concerned about the price. We didn’t doubt the quality of the product but the cost of importing goods to Mexico can be expensive. 

But we wanted something compact, powerful and modular at the same time. 

ESPER hardware has helped us to develop a complete photogrammetry setup that we can carry easily whilst being reassured that everything will work when showcasing it to our clients. 

The TriggerBox has eliminated all of the lags we previously experienced when shooting all cameras. 

The set up for the boxes is very user-friendly and straightforward and I love how compact they made the setup!

The PowerBox has freed up so much space in the setup by getting rid of the unnecessary power supply cables required to operate the cameras in the setup. This also makes our systems look neater and more professional.

Driving new clients with better photogrammetry setups

ESPER allowed us to deliver a ready-to-use solution.

We carry many different technologies and have been setting up photogrammetry systems for over three years now. 

Multi-camera hardware helps us simplify our methods for assembling photogrammetry setups. Our clients have also benefited from a much more effective process when creating 3D models.  

We have seen an increase in growth.

Our clients love our setups and now we have new complete systems waiting to be delivered to more universities than ever before. In fact, we’ll soon be placing an order for an additional 12 PowerBoxes and TriggerBoxes!

Click here to learn more about ESPER Multi-Camera Hardware.

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How ESPER Helped a 3D Scanning Company Boost Productivity by Putting an End to Sync & Power Issues

Today’s “ESPER Customer Stories” Q&A is with Sam Jackson, Director at sample & hold – a 3D scanning company focused on the creative media sector.  

After using ESPER boxes, Sam is less stressed about the reliability of his multi-camera setup and feels an improvement in productivity. 

Photogrammetry Camera Array
60 cameras 3d scanning array by sample & hold using ESPER TriggerBox and ESPER PowerBox

Here’s Sam’s story:

Tell us about sample & hold

Chris (Cornish) and I set up Sample & Hold back in 2011. 

We both have over 10 years experience working on 3D scanning projects so our aim was to pool our skills and create a company that produces the highest quality 3D data using the latest 3D capture technology.

We’ve worked on everything from Hollywood films to AAA games and we’ve scanned everything from horses to Michael Caine.

[foogallery id=”2684″]

I understand originally you built your own camera sync and power units?

From the outset, we knew we needed dependable hardware to power and trigger our multi-camera scanning setup.

So, we ended up building our own multi-camera sync and power boxes in-house, which we used for quite a while.  This was before ESPER’s boxes were available, I must add!

What led you to use ESPER boxes?

It’s fair to say that our boxes tended to be a little ‘flaky’. 

We have a 60 camera head 3D scanning rig and an 80 camera body. As a result, we seemed to be spending as much time fixing sync and power issues as doing the scans. Which when you’re working against the clock and it’s your reputation on the line it becomes very, very stressful and a big problem.

 3d scanning rig

So, switching to ESPER boxes was about improving reliability?

Completely. We’d heard good things about the ESPER trigger and power boxes so we decided to give them a try. 

Anything that meant we’d spend more time scanning and less on fixing sync and power issues!

Did you have any reservations about switching to ESPER kit?

Initially, yes. We had genuine concerns about reliability.

From our own experience, we knew that the theory of building the boxes was fairly simple. However, implementing that theory to make a 100% reliable,  ‘non-flaky’ product is really tough!

Ultimately, we can spend more time producing quality scan data and less time fiddling with sync and power issues!

And how reliable have the ESPER boxes been?

ESPER boxes just work!

Our concerns were totally unfounded. They’ve been solid and dependable since day one and so far we’ve had no issues. 

Using ESPER power and trigger boxes we can definitely feel an improvement in productivity. Although we can’t measure it, while setting up on location, the reduction in stress levels is noticeable!

Ultimately, we can spend more time producing quality scan data and less time fiddling with sync and power issues!

Using ESPER PowerBoxes and TriggerBoxes we can definitely feel an improvement in productivity.

Learn more about the ESPER TriggerBox and PowerBox.

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How ESPER Helped an eCommerce Company Slash Their Scan Time and Boost Productivity

Today, as part of “ESPER Customer Stories” series we talk to Scot Warner, the Head of Technical Research at SpinMe, specialists in 360-degree photo technology for online retailers and global brands.

Scot talks about the company’s journey from single camera setups to multi-camera solutions. And how the ESPER TriggerBox made this transition possible and helped improved productivity along the way.

multi camera setup

Read on for our conversation with Scot:

Hi Scot, tell us about SpinMe?

At SpinMe, we provide leading brands with a world-class automated imaging solution. We specialise in technology for 360-degree photos for use in eCommerce and on the web in general. 

We offer a variety of different modules so that companies can find their ideal workflow solution. In terms of features, the solution unites the 360-degree view of the product image, as well as the zoom effect on the image.

Our goal is to refine and improve image capture and workflow processes, providing the greatest visibility, control and flexibility to all creative teams. Amazon, Apple, Saint Laurent, and JD Sports are just some of the brands that we help to manage growing product volumes and the demand for better digital content.

[foogallery id=”2689″]

Click here to see ESPER TriggerBox customer gallery.


You started out with single-camera set-ups but you’re now shooting multi-camera. What prompted the change? 

The primary focus in eCommerce is speed and efficiency.  We have had single camera swing arm setups for many years but there was a want to make this multi-camera setup faster.

The ESPER TriggerBoxes made our decision to move to a multi-camera setup possible, specifically the TriggerBoxes simultaneous shooting capability and programmable port delays to sync camera shutters.

I originally saw the ESPER LightCage several years back and was really drawn in by what you were doing. We were chatting to ESPER on a different tangent and then found out you were doing trigger boxes so we tried them out and never went back.

The ESPER TriggerBoxes made our decision to move to a multi-camera setup possible, specifically the TriggerBoxes simultaneous shooting capability and programmable port delays to sync camera shutters.

So, what were the problems you found then initially looking into multi-camera set-ups?

Camera syncing for sure.  In the beginning, before we discovered the TriggerBox, we did have a more basic box which could shoot with a multi-camera setup.  However, its functionality was limited to 5 cameras and it only had a basic trigger delay on the primary camera.  This made syncing a very tough job and the process of setup very challenging.

With the TriggerBox, we currently shoot at 1/40th and I still think we could improve this. I know TriggerBoxes are capable of firing higher than this!  But for our subject matter, which is generally static, and the speed of setup time, this is our happy medium.

With the TriggerBox, we currently shoot at 1/40th and I still think we could improve this. I know TriggerBoxes are capable of firing higher than this!

Also, if we didn’t have fixed bows which help get the camera alignment, at least 80% of the way there then the camera positioning can also be a pain.

Luckily, we have a live-view software and camera overlays in SpinMe which can also help us out on this front.


And now the TriggerBox is part of SpinMe’s multi-camera solution. What impact has it had on the business?

It provides us and our customers with a small compact solution to speed up our multi-camera shooting process.  We currently have several clients using the multi-camera TriggerBoxes for various purposes.

Some are using the TriggerBoxes in a 360 multi-camera spins setup which consists generally of a 4 camera setup. Yet, a couple of clients use 6 cameras and others use the TriggerBox for 3D capture of texture shots at set angles, which again use 6 cameras.

Most significantly, we have improved productivity with the multi-camera setup. With a regular swing arm, we were talking about 2 minutes for a spin, the multi-camera solution is about 35 seconds inclusive of image download & replication, spin itself is about 15-20 seconds!

Most significantly, we have improved productivity with the multi-camera setup.

All clients that have had the solution fitted have been very happy with the results!

What next for the TriggerBox and SpinMe?

There has been a lot of interest in multi-camera setups with more deals in the pipeline and we’re also looking to venture towards 3D capture, which will no doubt add to this demand.

 

Learn more about ESPER TriggerBox.

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ESPER Making Life Easier for University Research Group

Built by the Department of Industrial and System Engineering at The Univerity of Iowa, Driver360 is an innovative 4D scanning system installed in a driving simulator environment.

The University selected ESPER hardware to provide the reliable powering and accurate triggering of 36 DSLR cameras, with minimal latency and no power management issues.

A 4D scanning system to better understand drivers

Professor Stephen Baek, Assistant Professor in Mechanical and Industrial Engineering at the University of Iowa along with his research team were presented with a challenge to develop a portable, modular 4D scanning system compatible with NADAS (National Advanced Driving Simulator) MiniSim, a high-performance driving simulator designed for research, development, clinical and training applications.

The Driver 360 4D scanning system, can capture time-synchronised HD videos of a subject sitting in and operating a driving simulator from different angles. The system then combines the videos, detects visual features and landmarks, and integrates them to reconstruct a 3D model for each video frame. The reconstructed models in the video frames are then combined to construct a dynamic 3D scan of the driver over time.

Triggering multi-cameras with minimal latency

Key to the system was how to trigger all 36 DSLR cameras simultaneously. To this end, efficient relay and broadcasting of a shutter signal to multiple cameras with a minimal latency was the challenge.

The ESPER TriggerBox technology was tested side-by-side with the University’s in-house system.

“We compared their technology with the one we made in-house, and the Esper trigger box showed less latency and had a significantly lower failure rate.”

The University purchased six TriggerBoxes from ESPER. The boxes were connected as a daisy-chain, each box can broadcast signals to up to six cameras and 36 cameras total. One of the boxes was connected to a wired remote control (RC) unit or a computer, and the signal from the RC or the computer is spread out to all the connected cameras.

Providing stable power to 32 DSLR Cameras

Secondly, because 36 DSLR cameras were required to operate in the Driver360 system, power management was an issue. The DSLR cameras by default operate on a lithium-ion battery as a sole power source, but this can be not only inconvenient but also unstable under the 32-camera setup.

The University decided to use a “dummy” battery to achieve a more stable power supply. The DC couplers have the same shape as the original camera batteries but are wired to wall outlets so the cameras have a more stable and persistent power supply. The dummy batteries are then connected to an ESPER PowerBox before being connected to the wall power outlet.

The role of the ESPER PowerBox is to convert the AC current from the wall outlet to a reliable, regulated DC current. Each PowerBox can supply power to up to six DSLR cameras.

The final setup

36 camera face scanning system by Visual Intelligence Laboratory research group.

32 camera face scanning system by Visual Intelligence Laboratory research group.

The new system marks the starting point for many innovative driving research studies. The capability of acquiring high-resolution videos enables immediate new research opportunities for measuring and analysing driving behaviours. Data collected using the system will produce a unique, rich dataset for better understanding drivers.

“Esper was selected based on their incomparable experience and expertise in building multi-camera systems, including the current state-of-the-art systems at Hollywood studios, video game companies, etc… and has the leading technology amongst the very few that are available in the market.”

Professor Stephen Baek, Assistant Professor in Mechanical and Industrial Engineering at the University of Iowa

 

Learn more about ESPER TriggerBox and PowerBox

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Scanning Studio Behind Spider-Man PS4 Taking Face Scans to the ‘Next Level’ with the ESPER LightCage

Crash FX Group, the 3D scanning studio behind the incredible face scans in the multi-award winning Marvel Spider-Man PS4 game get hands-on with ESPER’s state-of-the-art LightCage 3D head scanning rig.

We have interviewed experienced artists who have captured scans of humans and assets for large projects including EA, Sony, Netflix, DICE amongst others.

Crash CEO Tony Stranges and 3D Scan Manager Ed McDonough share their experience about using ESPER’s demo scanning rig for capturing photorealistic scans.

Why did you decided to test ESPER LightCage?

We do a lot of photogrammetry scanning.  Things we can talk about are Spider-Man for PS4, which we scanned all the heads for. We also did scans for Long Shot Homecoming. This is our first experience with the ESPER Light stage.  We’ve used a lot of ESPER products in the past, ESPER Triggers, ESPER Powers, which have worked fantastic with our rigs.  We’re very excited to see exactly how we can incorporate this into our workflow.

What makes this 3D scanning rig so special?

It’s a 20 camera set-up – 16 2000D’s to basically get the rough face.  Then we have three projection cameras of the 7D’s to project all the different lighting patterns onto the geometry.  What we are traditionally used to is using a series of strobes, which is just the pop flash.  Where as in this light stage rig we get very, very fast flashes, a lot more information.  A lot of image data that we normally wouldn’t have been able to get. As far as specular maps, straight diffuse maps, reflection maps and normal maps.

3D scanning Rig

So, what are your thoughts?

We were doing a few different things. Testing heads, testing hands. The speed of the whole system, the speed of the cameras as well. Make sure that the sync of the lights and the cameras are consistent with a multi-camera set-up. Which has all been great.

Everything is fully manageable, keeping your eyes open for the whole time. The software is actually very easy to use. I’m not a programmer and I was able to pick it up in a few seconds.

We’ll go away and process it and get all the images aligned. Once we do that we’ll be able to take all the images and re-project onto the geometry and then we’ll be able to kick out a normal map.  I think having a multi-directional lighting set-up is definitely a change from what we’re using with just strobes.  This is going to basically take our data to the next level.
Click here to learn more about ESPER LightCage.

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