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Computers Detect Fake Paintings that are Replicas
Maastricht University (Netherlands) is working on computer vision software that authenticates paintings. There have been some major publications, as well as some buzz on the Web.
"Spotting a forged painting usually takes an expert eye and hours of analysis but that could change with a new digital authentication technique which analyses signs of an artist's unique style."
[...]
The software program called Authentic can also help date paintings by a particular artist, reports New Scientist."
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Posted by schestowitzon Sunday, October 15 @ 19:49:52 BST (1520 reads)
Read More... | 87 comments | Score: 0 |
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Scalable Image Recognition for Mobile Devices
What happens when you are faced with limited resources and yet need to perform routine image recognition?
"Could you write a good image recognizer for a 100 MHz mobile phone processor with 1 MB heap, 320x240 image, on a poorly-optimized Java stack? It needs to locate and read two-dimensional barcodes made up of square modules which might be no more than a few pixels in size. We had to do that in order to establish Semacode, a local start up company that makes a software barcode reader for cell phones."
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Posted by schestowitzon Tuesday, August 01 @ 14:30:59 BST (1187 reads)
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Image Interpretation on the iPod
...Crossing over to a story that we rarely have an opportunity to hear about...
The CNN reveals some interesting details about software which runs on the Apple iPod and allows complex medical images to be viewed. This saves unnecessary expenses on costly and large equipment and allows radiologists to work virtually everywhere, analysing motion sequences in 2-D and 3-D. At present, the software is being devised in Geneva, Switzerland.
From the article:
We chose to create the software for Macs, as it's no secret that they are known for their graphic ability. They have huge processing power for 3D and 4D images.
CDs aren't big enough, memory sticks are not big enough, but I had my iPod, which has 40GB of memory just there. We rigged the software so that you can click to store the images on the iPod, and subsequently view them in Osirix directly from the iPod.
After we figured out that the iPods were a practical way of carrying these images, Apple brought out the photo iPod a few months later. That meant the images could also be viewed on the devices.
Read full article
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Posted by schestowitzon Thursday, October 27 @ 14:16:49 BST (2274 reads)
Read More... | 79 comments | Score: 0 |
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Computer Vision Assists the Blind
edestrian crossings and particularly the challenges these impose on the blind, are investigated at the Kyoto Institute of Technology. Canes, laser and ultrasonic waves have been used in the past to detect obstacles, but the new approach is somewhat more sophisticated. There is, as the article suggests, a cunning and principled approach, which helps detect the location, colour and orientation of various objects.
"Using images from a single camera, the device has a simple structure and does not need camera calibration, unlike sophisticated stereo camera systems, as the information is obtained using what is known as a "camera coordinate system". This means that separate images do not need to be taken to calibrate the device. The length of a pedestrian crossing is measured by projective geometry, where the camera makes an image of the white lines painted on the road. Using the properties of geometric shapes as seen in the image, the actual distances are determined."
Methods such as this may also be used for autonomous vehicles where understanding of a complex environment is essential.
Full article from IOP.org
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Posted by schestowitzon Tuesday, September 20 @ 04:08:10 BST (2583 reads)
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Machine Vision Suppliers Recover
2 June 2005, Test & Measurement World: Semiconductors and electronics continue to represent significant market segments for machine-vision end-user products; together, those segments accounted for 46% of 2004's total North American machine-vision sales revenue, according to Automated Imaging Association research.
The research results, which indicate that 2004 was a strong recovery year for North American machine-vision companies, appear in the AIA's recently released annual market study, Machine Vision Markets: 2004 Results and Forecasts to 2009. The study analyzes 2004 market size, performance, players, and product types, and it forecasts sales by product type, technology, and economic sector for 2005 through 2009.
Difficult to ignore is the price of the 352-page report: $995.
Full story: AIA Study Shows 2004 Recovery for Machine-Vision Suppliers
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Posted by schestowitzon Tuesday, June 21 @ 06:44:31 BST (2743 reads)
Read More... | 100 comments | Score: 0 |
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