A new cryptographic puzzle has been developed that might one day be used as a security mechanism for digital currency such as bitcoin. It consumes significantly less energy than the method used to date, say researchers.
Handheld, mobile phone-based microscopes can be used in developing countries after minimal training of community laboratory technicians to diagnose intestinal parasites quickly and accurately.
Camera-equipped smartphones, laptops and other devices make it possible to share ideas and images with anyone, anywhere, often in real-time. But in our cameras-everywhere culture, the risks of accidentally leaking sensitive information are growing. Computer scientists have developed software that helps prevent inadvertent disclosure of trade secrets and other restricted information within a camera's field of view by letting users specify what others can see.
Scientists have developed a device that employs both magnetic and electronic signals, which could provide twice the storage capacity of conventional memory devices, such as USB flash drives.
Visual data created by numerous security cameras, personal mobile devices and aerial video provide useful data for first responders and law enforcement. That data can be critical in terms of knowing where to send emergency personnel and resources, tracking suspects in man-made disasters, or detecting hazardous materials. Recently, a group of computer science researchers developed a visual cloud computing architecture that streamlines the process.
Computer scientists and engineers have launched the 'MegaFace Challenge,' the world's first competition aimed at evaluating and improving the performance of face recognition algorithms at the million person scale.
A computer program that recognizes sketches could help consumers shop more efficiently. Fine-grained sketch-based image retrieval (SBIR) overcomes problems with using words to describe visual objects in words, especially when dealing with precise details, and with using photos, which can restrict the search far too narrowly.
A new scientific statement reviews current research on the effectiveness and safety of using mobile devices, social media, visual media and crowdsourcing to improve emergency heart and stroke treatments.