Tag Archives: surveillance drones

Dodging the Camera: How to Beat the Surveillance State in its Own Game

Powered by advances in artificial intelligence (AI), face-recognition systems are spreading like knotweed. Facebook, a social network, uses the technology to label people in uploaded photographs. Modern smartphones can be unlocked with it… America’s Department of Homeland Security reckons face recognition will scrutinise 97% of outbound airline passengers by 2023. Networks of face-recognition cameras are part of the police state China has built in Xinjiang, in the country’s far west. And a number of British police forces have tested the technology as a tool of mass surveillance in trials designed to spot criminals on the street.  A backlash, though, is brewing.

Refuseniks can also take matters into their own hands by trying to hide their faces from the cameras or, as has happened recently during protests in Hong Kong, by pointing hand-held lasers at cctv cameras. to dazzle them. Meanwhile, a small but growing group of privacy campaigners and academics are looking at ways to subvert the underlying technology directly…

Laser Pointers Used to Blind CCTV cameras during the Hong Kong Protests 2019

In 2010… an American researcher and artist named Adam Harvey created “cv [computer vision] Dazzle”, a style of make-up designed to fool face recognisers. It uses bright colours, high contrast, graded shading and asymmetric stylings to confound an algorithm’s assumptions about what a face looks like. To a human being, the result is still clearly a face. But a computer—or, at least, the specific algorithm Mr Harvey was aiming at—is baffled….

Modern Make-Up to Hide from CCTV cameras

HyperFace is a newer project of Mr Harvey’s. Where cv Dazzle aims to alter faces, HyperFace aims to hide them among dozens of fakes. It uses blocky, semi-abstract and comparatively innocent-looking patterns that are designed to appeal as strongly as possible to face classifiers. The idea is to disguise the real thing among a sea of false positives. Clothes with the pattern, which features lines and sets of dark spots vaguely reminiscent of mouths and pairs of eyes are available…

Hyperface Clothing for Camouflage

 Even in China, says Mr Harvey, only a fraction of cctv cameras collect pictures sharp enough for face recognition to work. Low-tech approaches can help, too. “Even small things like wearing turtlenecks, wearing sunglasses, looking at your phone [and therefore not at the cameras]—together these have some protective effect”. 

Excerpts from As face-recognition technology spreads, so do ideas for subverting it: Fooling Big Brother,  Economist, Aug. 17, 2019

How to Navigate the Rubble: DARPA

Imagine a natural disaster scenario, such as an earthquake, that inflicts widespread damage to buildings and structures, critical utilities and infrastructure, and threatens human safety. Having the ability to navigate the rubble and enter highly unstable areas could prove invaluable to saving lives or detecting additional hazards among the wreckage.

Dr. Ronald Polcawich, a DARPA program manager in the Microsystems Technology Office (MTO):”There are a number of environments that are inaccessible for larger robotic platforms. Smaller robotics systems could provide significant aide, but shrinking down these platforms requires significant advancement of the underlying technology.”

Technological advances in microelectromechanical systems (MEMS), additive manufacturing, piezoelectric actuators, and low-power sensors have allowed researchers to expand into the realm of micro-to-milli robotics. However, due to the technical obstacles experienced as the technology shrinks, these platforms lack the power, navigation, and control to accomplish complex tasks proficiently

To help overcome the challenges of creating extremely [Size, Weight and Power] SWaP-constrained microrobotics, DARPA is launching a new program called SHort-Range Independent Microrobotic Platforms (SHRIMP). The goal of SHRIMP is to develop and demonstrate multi-functional micro-to-milli robotic platforms for use in natural and critical disaster scenarios. To achieve this mission, SHRIMP will explore fundamental research in actuator materials and mechanisms as well as power storage components, both of which are necessary to create the strength, dexterity, and independence of functional microrobotics platforms.

“The strength-to-weight ratio of an actuator influences both the load-bearing capability and endurance of a micro-robotic platform, while the maximum work density characterizes the capability of an actuator mechanism to perform high intensity tasks or operate over a desired duration,” said Polcawich. “

Excerpts from Developing Microrobotics for Disaster Recovery and High-Risk Environments: SHRIMP program seeks to advance the state-of-the art in micro-to-milli robotics platforms and underlying technology, OUTREACH@DARPA.MIL, July 17, 2018

The 1 Million Genies out of the Bottle

The head of the U.S. Departement of Homeland Security  (DHS)  on May 15, 2018 told Congress that the agency needs new legal authority to track threatening drones and disable or destroy them if necessary.  “Our enemies are exploring other technologies, too, such as drones, to put our country in danger. ISIS has used armed drones to strike targets in Syria, and we are increasingly concerned that they will try the same tactic on our soil,” she said…

Government and private-sector officials are concerned that dangerous or even hostile drones could get too close to places like military bases, airports and sports stadiums.Nielsen added that DHS has “also seen drones used to smuggle drugs across our borders and to conduct surveillance on sensitive government locations.”

In 2017, the Federal Aviation Administration barred drone flights over major U.S. nuclear sites. The FAA also banned drone flights over 10 U.S. landmarks, including the Statue of Liberty in New York and Mount Rushmore in South Dakota.  Also banned in 2017 were drone flights over 133 U.S. military facilities. The Pentagon said in August 2017 that U.S. military bases could shoot down drones that pose a threat.  The FAA said in January 2017  that more than 1 million drones have been registered. Last week, the U.S. Transportation Department picked 10 pilot projects allowing drone use at night, out of sight operations and over populated areas

Exceprts from U.S. agency seeks new authority to disable threatening drones, May 15, 2018

Drones and the Anti-Poaching War: Tanzania

The Tanzania National Parks Authority (TANAPA) says it is looking to deploy the French-made Delair Tech DT-18 unmanned aerial vehicle (UAV) to carry out surveillance operations over key national reserves to protect critically endangered elephant and rhinos from poachers.

This follows successful test-flights of the DT-18 UAV over the Tarangire National Park last week by private Tanzanian company Bathawk Recon…Bathawk Recon is a private company which was set up to develop and deploy UAV surveillance systems for national parks and game reserves.  Its representative Mike Chambers said the UAV had performed to their satisfaction in both day and night surveillance operations. He said the DT 18 can fly multiple day and night missions thanks to an infrared camera….

TheDT-18 trials were conducted under the auspices of the (Tanzanian) Private Sector Anti Poaching Initiative which seeks to bring the private sector to participate in war against poaching.The UAV systems will be operated by the Wildlife Crime Unit (WCU) of the national parks authority. Tanzania is battling a serious rhino and elephant poaching crisis and the populations of both species have continued to decline in the last few years. The most affected are Selous Game Reserve, Tarangire National Park and Ruaha Game Reserve.  Some 30 elephants are killed every day in Tanzania by poachers.

Excerpts from Oscar Nkala, Tanzania seeking to deploy DT-18 UAVs in anti-poaching war, DefenceWeb.com, Nov. 12, 2104

Controlling Protesters – the Skunk Drone

South African company Desert Wolf yesterday unveiled its Skunk riot control drone at the IFSEC security exhibition outside Johannesburg. Armed with four paintball guns, it can fire a variety of ammunition to subdue unruly crowds.The Skunk is designed to control crowds without endangering the lives of security staff. Bright strobe lights and on-board speakers enable operators to communicate with and warn the crowd. If things get out of control the Skunk can use its four paintball guns to disperse or mark people in the crowd. Four ammunition hoppers can load different types of ammunition such as dye marker balls, pepper spray balls or solid plastic balls. Payload capacity of the unmanned aerial vehicle (UAV) is 40 kg but since the gun assembly weighs around 15 kg the aircraft has an excess of power.

In addition to two high definition day cameras, the Skunk carries a FLIR thermal camera for night vision capability. A camera and microphone on the operator’s station records the operators (a pilot and payload operator) so their behaviour can be monitored. Hennie Kieser, Director of Desert Wolf, said people tend to be less aggressive when they are monitored.

Desert Wolf will soon deliver the first 25 units to customers in the mining industry and the UAV will enter service around June/July. Kieser said it was sad that the mines are in a predicament with strike related violence and this is why the mines are the biggest market for the system. A full system including cameras, ground control station etc. will cost around R500 000.

Kieser said Desert Wold will definitely export the Skunk into Africa, primarily for mining operations, and that South African success will lead to other orders. He felt the best market is not in South Africa because of the current legislation restricting drone use.

Desert Wolf Unveils Riot Control UAS, UAS Vision, May 16, 2014