Thursday, September 29, 2016

3D laser scanner for crime scene investigation

With the implementation of the FARO 3D scanner and its compatible handheld device, FARO Freestyle, the Sheriff's Office now has technology that allows investigators to complete their jobs more efficiently.

(Photo: WKRN)
The scanner collects millions of measurements as it rotates 360 degrees. These points are then captured and stored in a 3D model to create a digital representation of the scene. The scanner can also take high resolution color photographs.

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Wednesday, September 28, 2016

Beards and mustaches confuse visual speech recognition systems

Beards and mustaches can significantly confuse visual speech recognition systems. Consequently, they are more successful with female than male speakers.

A man hard to read. Photo of Alan Moore by Mirka. CC-BY-SA 3.0
Another problem is that some people are less expressive with their lips. Some even hardly move their lips at all and these so-called “visual-speechless persons” are almost impossible to interpret.

Most significant problem is however ambiguity between mouth shapes and sounds. During speech, the mouth forms between 10 and 14 different shapes, known as visemes. By contrast, speech contains around 50 individual sounds known as phonemes. So a single viseme can represent several different phonemes.

Source: The Challenges and Threats of Automated Lip Reading

Wednesday, September 21, 2016

First Tactical Sunwear Lens Released

O2Amp company has created a new pair of glasses, called Tactical Insight Sunwear, that give professionals better insight into the state of others by enhancing the visibility of blood and oxygenation color signals just under the skin. Thus police, military, paramedics, and other security and protective personnel can now get a better insight into the emotions, intent, feelings and health of other people out in the field.

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Eagles Against Drones

Bald eagle. Photo by Ltshears (CC-BY-SA 3.0) 
Dutch Police trains North American eagles to take down hostile drones. The eagles learned not only taking it down, but also taking the drone far away from crowds.

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Estimote Released Video-enabled Beacon

Estimote Mirror can communicate with nearby phones and their corresponding apps, and also take content from these apps and display it on any digital screen around person.

Source: Launching Estimote Mirror – the world’s first video-enabled beacon

Friday, September 9, 2016

Public Safety (2016-W36)

Google's driverless cars fitted with police detection technology

As per the patent, the car computer detects emergency vehicles from their flash lights and from the sound it emanates – siren of course.  Further, the car computer does comparative analysis of images to make sure what it has detected is an emergency vehicle.

The car computer will capture images of an approaching emergency vehicle. After that it will initiate its two step detection process. In the first step, it will analyze images to check whether an approaching vehicle is an emergency vehicle or something else. Also, it will figure out in this step the color of flash light and its pattern.

If it’s confirmed that an emergency vehicle is approaching, the computer will determine the type of approaching emergency vehicle.

The car here uses the pattern and color of a flash light. A dancing beacon of red color, for example, will be identified as ambulance while the one with orange and blue beacon will be confirmed as a police vehicle.

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Saturday, September 3, 2016

Public Safety (2016-W35)

Kodiak, Alaska, Police Discontinue Use of Body Cams

Kodiak police chief Rhonda Wallace told the local City Council in mid-August she decided to discontinue the use of body cameras because of technical difficulties and privacy concerns.
The cameras were slow to begin recording from sleep mode; they were easily knocked off officers' uniforms; and a button that turns off sound could be inadvertently pressed, she said.
Wallace also said the cameras posed a risk to individual privacy rights.

Source: Kodiak, Alaska, Police Discontinue Use of Body Cams Citing Technical Difficulties, Privacy Concerns

A network of high-tech microphones designed to detect and locate shootings and quickly alert police in Jacksonville

Mayor Lenny Curry’s administration has been in talks with a California company, ShotSpotter, for more than a year about using its technology to help reduce gun violence.

ShotSpotter’s program relies on a network of microphones that it says can accurately detect and locate gunfire. Once a shot is detected, the company quickly reviews the sound to verify whether it’s gunfire and alerts local police.

Source: City looks at pilot program to monitor shootings

Automatic licence plate reader to nab illegal drivers

Ottawa police have a new set of eyes on the road -- one that can register 5,000 licence plates an hour.

Last week, police rolled out their first cruiser equipped with Automatic Licence Plate Recognition. The infrared camera mounted on top of the cruiser registers a license plate every second, feeds it into a database and then flags illegal drivers.

Source: Ottawa police use automatic licence plate reader to nab illegal drivers