Reverse Painter's Algorithm
Reverse painter's algorithm is logically enough, the reverse of painter's algorithm. Painter's algorithm is a 3D rendering method where each object is rendered in turn, starting with that which is furthest away from the viewpoint, and then successively closer items are rendered. Reverse painter's algorithm, operates the other way round, drawing the closest objects first, then working backwards. The governing rule is that rather than testing for clipping in the normal way, the display area is tested from the viewpoint, pixel by pixel. If there is already something there, regardless of what it is, don't 'paint' another object. Thus, reverse painter's algorithm is actually a fairly fast and efficient render method.
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A computer algorithm developed at the University of Washington uses hundreds of thousands of tourist photos to automatically reconstruct an entire city in about a day.
Prior to 2006, any attempt at investigating wireless technology, developing a new algorithm for propagation, or even trying for a whole new standard, all shared one thing in common: The phenomenal expense for the research team.
The omni-focus is a camera system with the ability to function much like the human eye - capturing objects in its field of vision regardless of the distance, in perfect focus. It even adapts an algorithm from VR, in order to do so.
There are a few, albeit exceedingly rare cases, where after a lifetime of blindness, a human's vision is naturally restored. These cases, properly studied, are yielding impressive amounts of data on how a vision system forms in a mature mind - and thus how to recreate the same, in machine vision.
A wired article about Dr Ed Boyden and his lab, at the cutting edge of applied neuroscience. A fairly lengthy and in depth article on the process of reverse engineering and enhancing the brain, and showcasing the state of development of the science as of early 2009.
Industry news, originally posted 23-10-2012, deemed too important to allow to fade. At the breakpoint 2012 cybersecurity conference on the 18th of October, Barnaby Jack, a Research Architect with the TRACE research team at McAfee, demonstrated a critical weakness in pacemakers. Specifically, he was able to reverse-engineer the specs of the transmitter contained in every modern pacemaker – used to update firmware without requiring additional open heart surgeries – with lethal consequences.
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Lakshminarayan "Ram" Srinivasan, postdoctoral researcher at the Centre for Nervous System Repair at Massachusetts General Hospital and a medical student in the Harvard-MIT Division of Health Sciences and Technology, has created a new algo...
Cryptographers from around the world have laid their best work on the line in a contest to find a new algorithm that will become a critical part of future communications across the Internet. The winning code will become a building block of ...
An experimental helmet that could reverse the symptoms of Alzheimer's disease within four weeks of being used is to be trialed on British patients.
The strange-looking helmet has to be worn continuously for ten minutes each...
Researchers have devised a penny-sized silicon chip that uses photons to run Shor's algorithm - a well-known quantum approach - to solve a maths problem. The algorithm computes the two numbers that multiply together to form a given figure,...
Networks of compromised computers controlled by a central server, better known as botnets, are a Swiss Army knife of tools for online criminals. Hackers can use these co-opted systems to churn out spam, host malicious code, hide their track...