By Soulskill from Slashdot's coming-to-a-tsa-checkpoint-near-you department
wisebabo sends word that scientists from UC Berkeley have developed a method for scanning brain activity and then constructing video clips
that represent what took place in a person's visual cortex (abstract
). The technology is obviously quite limited, and "decades" away from any kind of sci-fi-esque thought reading, but it's impressive nonetheless. From the news release:"[Subjects] watched two separate sets of Hollywood movie trailers, while fMRI was used to measure blood flow through the visual cortex, the part of the brain that processes visual information. On the computer, the brain was divided into small, three-dimensional cubes known as volumetric pixels, or 'voxels.' ... The brain activity recorded while subjects viewed the first set of clips was fed into a computer program that learned, second by second, to associate visual patterns in the movie with the corresponding brain activity. Brain activity evoked by the second set of clips was used to test the movie reconstruction algorithm. This was done by feeding 18 million seconds of random YouTube videos into the computer program so that it could predict the brain activity that each film clip would most likely evoke in each subject. Finally, the 100 clips that the computer program decided were most similar to the clip that the subject had probably seen were merged to produce a blurry yet continuous reconstruction of the original movie."Read Replies (0)
By timothy from Slashdot's robotic-drones-in-addition-to-the-regular-ones department
garymortimer tips this story at the Canberra Times, which starts: "Police have suggested that Canberra's new point-to-point speed cameras be linked to unmanned aerial surveillance drones and used to track vehicles of interest to authorities. The first of the cameras, which use automated number plate recognition technology to calculate a car's average speed and whether it is within the legal limit, are due to be switched on by the end of the year."
I wonder how much surveillance by drone is already being done in the U.S., especially considering that even an (admittedly high-end) home-built drone is capable of hijinks
that seem to parallel the cell-phone tracking activities the FBI has been shown to employ
.Read Replies (0)
By timothy from Slashdot's steady-hands department
The BBC reports that"An amateur astronomer has recorded images of the out-of-control US satellite as it tumbles back to Earth. Theirry Legault, from Paris, captured the video as the satellite passed over northern France on 15 September. The six-tonne, 20-year-old spacecraft has fallen out of orbit and is expected to crash somewhere on Earth on or around 24 September. The US space agency says the risk to life from the Upper Atmosphere Research Satellite (UARS) is 1 in 3,200. Mr Legault, an engineer, used a specially designed camera to record the tumbling satellite through his 14-inch telescope, posting the footage on his Astrophotography website."
(Previous, equally impressive work from Legault include his photos of Atlantis's final re-entry
and the ISS, sun and moon in one shot
.)Read Replies (0)