Researchers have sought to develop cameras that ‘ride’ on the backs of insects, giving us an opportunity to explore the world from their view. The study parallels the movie “Ant-Man” where the character shrunk to a size small enough to fit on the back of an ant.
Findings were published in the journal Science Robotics and describes how researchers at the University of Washington developed a tiny wireless steerable camera. The camera streams video at 1 to 5 frames per second on a mechanical arm pivoting 60 degrees.
"We have created a low-power, low-weight, wireless camera system that can capture a first-person view of what's happening from an actual live insect or create vision for small robots," said senior author Shyam Gollakota, a UW associate professor in the Paul G. Allen School of Computer Science & Engineering. "Vision is so important for communication and for navigation, but it's extremely challenging to do it at such a small scale. As a result, prior to our work, wireless vision has not been possible for small robots or insects."
The video to smartphone viewing captures a high-resolution panoramic track of a moving object on minimal energy usage.
"Similar to cameras, vision in animals requires a lot of power," said co-author Sawyer Fuller, a UW assistant professor of mechanical engineering. "It's less of a big deal in larger creatures like humans, but flies are using 10 to 20% of their resting energy just to power their brains, most of which is devoted to visual processing. To help cut the cost, some flies have a small, high-resolution region of their compound eyes. They turn their heads to steer where they want to see with extra clarity, such as for chasing prey or a mate. This saves power over having high resolution over their entire visual field."
"One advantage to being able to move the camera is that you can get a wide-angle view of what's happening without consuming a huge amount of power," said co-lead author Vikram Iyer, a UW doctoral student in electrical and computer engineering. "We can track a moving object without having to spend the energy to move a whole robot. These images are also at a higher resolution than if we used a wide-angle lens, which would create an image with the same number of pixels divided up over a much larger area."
Source: Science Daily