UAS Equipment

The sUAS market is blossoming at an exceptionally swift pace. Being that I did not have a hobbiest background before starting this project, I wanted to find a package that was easy to use and that I could operate right out of the box. Autonomous capabilities were a must, and most importantly, it needed to be reasonably affordable for a someone still in college.

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IRIS Package Contents: Copter, R/C, Battery and Charger, Telemetry, Tools, Accessories

After seeing a presentation by 3D Robotics last August, I was sold on their products based on their prices and track record. The IRIS is 3DR’s flagship product. The quadcopter comes with everything necessary, including a battery and R/C controller, in a convenient package. Technicians even pre-program the R/C with 5 different flight settings.

The other key component necessary was the camera and camera mount. I had an iPhone already, so the camera was taken care of. Configuring a mount though was a major challenge since nothing exists on the market for iPhones. Copters by nature produce high frequency vibrations and without the proper mount, the vibrations will bleed into your photos/video. This effect is commonly referred to as “jello.”

Vibrations or "jello" cause distortions and smearing
Vibrations or “jello” cause distortions and smearing

As I came to find out, the iPhone’s CMOS rolling shutter sensor is especially susceptible to jello. To fix this, I ordered a vibration dampening mount made for a DJI Phantom. To my surprise, the mounting screw locations matched the IRIS’ bottom vents perfectly! After finding some go pro mounts, extension legs, and clear iPhone case, I had pieced together a vibration free fixed iPhone 5s mount for the bottom of my IRIS (See gallery below).

Since installing the mount, the images from my iPhone are now about 90-95% jello free. More experiments are under way to improve image quality even more, but for now, I’m pretty satisfied with the results.

Applied Photogrammetry Using Drone Technology and the World's Most Popular Camera