Imaging

Anyone who likes to get their gear off for a spot of naked sunbathing in the backyard may have to think twice in the future. Researchers have developed a new nanotechnology-based “microlens” that could lead to a new generation of ultra-powerful satellite cameras and night-vision devices. Thankfully, the new lens is used for infrared imaging, so the technology is more likely to be used for security and monitoring climate change and deforestation than spying on naturists boosting their vitamin D levels.  Read More

Researchers at the California Institute of Technology (Caltech) have built a device that produces highly focused, high-amplitude acoustic signals dubbed "sound bullets." Called a nonlinear acoustic lens, the device could produce acoustic images superior to conventional medical ultrasound imaging, probe for damage in the interior of nontransparent objects like bridges, ship hulls, and airplane wings, and be used to develop non-invasive scalpels – although there’s no word on whether it will enable the development of sonic screwdrivers.  Read More

Remarkable new imaging technology developed by researchers at the University of Wisconsin can not only capture the heart in 3D showing blood flow, direction, and velocity, but can also show them relating to a fourth dimension - time. The procedure is fast, and requires no invasive procedures, no contrast agent or general anesthesia and could have significant consequences for patients at risk of cardiac problems.  Read More

Just as consumer cameras continue the shrink, so too are cameras designed for military and other commercial applications. The latest is a compact 3D imaging camera launched by Boeing that is designed to be deployed on a wide range of platforms, including unmanned aerial and ground vehicles. The cube-shaped camera is one-third the size and uses one-tenth the power of most comparable cameras.  Read More

Stopping a heart from beating during surgery is a complicated and risky procedure. Robotic technology that predicts the movement of the heart as it beats, thereby enabling surgical tools to move in concert with each beat, could help cut the risks of such surgery by allowing surgeons to operate on a beating heart as if it were stationary.  Read More

After weeks of speculation and the accidental pre-announcement release of a demonstration video, the Ricoh GXR digital camera system has finally been officially announced. Not only is it claimed to be the smallest and lightest digital camera that allows lenses to be changed, but as the lens and sensor comprise one interchangeable unit, photographers can now choose different sensor/lens combinations for different photographic conditions.  Read More

University of Utah engineers have developed a system that uses a wireless network of radio transmitters to track people moving behind solid walls. They say the system could help police, firefighters and other emergency services capture intruders, and rescue hostages, fire victims or elderly people who fall in their homes by letting them know where to focus their attentions. The engineers’ system uses radio tomographic imaging (RTI) to “see”, locate and track people or objects in an area surrounded by inexpensive radio transceivers that send and receive signals.  Read More

Researchers at Cornell, Purdue and Norfolk State University have reported the successful creation of a 'spaser', a new kind of nanoscale laser that breaks dimensional limits previously thought to be insurmountable, leading the way to significantly faster and more efficient computer processing and data transfer rates.  Read More

Researchers in the U.K. are working at turning newly developed imaging technology into an intelligent harvesting machine. Using microwave measurement, the system can look beneath the leafy layers of a crop, identify the differing materials, and enable precise size identification. Such a machine could minimize wastage in crops like cauliflower and solve an impending labor shortage for U.K. farmers caused by a fall in the number of migrant workers.  Read More