For computer scientists exploring face recognition the question is who

first_imgThe images on the right are original images of Richard Nixon and Winona Ryder. Most people have a better chance of recognizing a person with eyebrows and no eyes (center), rather than with eyes and no eyebrows (left). Credit: Sinha, et al. One of the most challenging tasks for computer vision researchers is to design a system that can automatically recognize individual faces. Humans, who can perform this task in as little as 50 milliseconds—almost unconsciously, it seems—may even be pre-programmed from birth. But while computers currently lag behind their biological counterparts, scientists hope that one day, machines will not only equal the human ability of facial recognition, but exceed and, in turn, improve human visual processes. Because humans generally do not have a problem recognizing faces under varying illumination, with chaotic background noise, or at long distances, computer systems may benefit from learning the mechanisms of the brain. As research has suggested, our brains have likely devoted a specialized neural resource solely for facial recognition—perhaps computers could use a similar “brain region” to process faces. But then again, maybe computers will find an even better way.“Too much generalization can prove to be a short-coming in situations where individuals are actively trying to deceive and adopt other people’s identities,” explained Sinha. “In these circumstances, a detail-oriented scheme, say examining the precise pattern of irises or the exact distances between facial features, might be more appropriate, despite being implausible as human strategies.”Citation: Sinha, Pawan, Balas, Benjamin, Ostrovsky, Yuri, and Russell, Richard. “Face Recognition by Humans: Nineteen Results All Computer Vision Researchers Should Know About.” Proceedings of the IEEE. Vol. 94, No. 11, November 2006.By Lisa Zyga, Copyright 2007 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. “The human brain has an amazing ability to recognize faces,” scientist Richard Russell of Harvard told PhysOrg.com. “It would be a waste not to learn from it, especially since there are no other computer strategies so far that come close to the kind of face recognition performance the human brain exhibits.”Along with Russell, MIT researchers Pawan Sinha, Benjamin Balas, and Yuri Ostrovsky all have a strong interest in computer science but spend most of their time studying the human brain. In their recent study, “Face Recognition by Humans: Nineteen Results All Computer Vision Researchers Should Know About” in the Proceedings of the IEEE, the group compiles 19 vignettes of how humans recognize faces. Explore further For humans, the scientists explain that these abilities may be due to the nature of how the brain processes human faces: facial features, unlike many other objects in our world, are processed holistically rather than piecemeal (Result 4). However, the brains of young children may utilize a piecemeal strategy, which progresses to holistic by the age of about 10 years (Result 16).The single facial feature that is most vital for recognition is a bit of a surprise—it’s not the eyes, but rather the eyebrows that people seem to depend upon most for identification (Result 5). And although it makes sense that facial shape plays an important role in recognition, research shows that skin pigmentation—even slight shade differences—plays at least as important a role as shape (Result 9). These areas, Sinha et al. suggest, might receive valuable attention from computer designers.“The primary emphasis in the last few years has been security: finding terrorists and criminals, securing access to sensitive physical locations,” said Ostrovsky. “But there are many other fun or practical applications as well: finding your friend in a crowded stadium or automated labeling of celebrities or politicians in news broadcasts. Another big future application is instant personalization of settings for your electronic devices (e.g., computer, mobile phone, ‘smart home’). We do a lot of things differently depending on who is around us, and electronic devices should do the same without our having to explicitly login every time.” Because the adult brain processes faces holistically, it is easier for most people to recognize these two faces in the right image, where they are misaligned. They are Woody Allen and Oprah Winfrey. Credit: Sinha, et al.center_img Research shows that humans can recognize familiar faces even with high degradations. From left to right: Michael Jordan, Woody Allen, Goldie Hawn, Bill Clinton, Tom Hanks, Saddam Hussein, Elvis Presley, Jay Leno, Dustin Hoffman, Prince Charles, Cher, and Richard Nixon. The average recognition rate at this resolution is one-half. Credit: Pawan, Sinha, et al. Neuroplasticity: Why is the visual cortex involved in language processing in blind individuals? Citation: For computer scientists exploring face recognition, the question is ‘who?’ (2007, February 7) retrieved 18 August 2019 from https://phys.org/news/2007-02-scientists-exploring-recognition.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Although they are careful to point out that vision systems would not “slavishly imitate” humans’ perceptions, the scientists also include pointers on how each of the 19 results could influence the design of an automatic face-recognition system.One interesting overall impression from the research is that humans do a remarkable job of identifying faces, even under many kinds of extreme degradations. For example, humans can recognize familiar faces in very low-resolution images (Result 1). The scientists speculate that we have learned to do this because we must often recognize people at a distance and in motion. Unfamiliar faces, however, were more difficult with degradations—which may explain why it’s difficult to identify unknown suspects in a police line-up (Result 2).Further, we don’t need to see every feature of a face to identify a person, and we can quite easily recognize faces with heavy distortion along the length or width axis (or in funhouse mirrors) (Result 6). “Human recognition not only performs well under severely degraded conditions, but even under the best circumstances our visual system doesn’t seem to bother storing perfect models of the objects we see,” explained Balas. “Recognition may be less a problem of finding ways to recover the world perfectly from the image, and more a problem of finding quick and dirty solutions that work most of the time.”last_img read more

Renault joins London wireless EV charging trial

first_img © 2012 Phys.org Qualcomm’s Halo technology will be fitted on up to ten electric vehicles; this is a wireless technology that Qualcomm purchased last year from the University of Auckland’s HaloIPT. The Halo system, consisting of a charging terminal, flat pad and receiving pad on the car, transmits kilowatts of electricity over the air. There is a charging pad on which EV owners park their vehicles. The pad is activated by the presence of the vehicle, sending a charge through the air gap between the ground pad and the receiving pad. Halo uses electro-magnetic induction to transfer 3, 7 or even 20 kW of power between two coils. Transmission rates are reported as similar to what can be achieved with a traditional cable charger. Qualcomm claims that energy losses are small and as a result the charging method’s efficiency of 90 percent is comparable to conventional charging with a cable.All of the cars chosen for the trial are fully electric. The trial will be ongoing for about two years. In the first phase, the system will be used on vehicles in controlled environments, with ten to 20 charging pads, to help evaluate Halo’s commercial viability. A second round of trials will involve Renault in 2013. Announcing its participation, Jacques Hebrard, vice president of Energy and Environment Advanced Projects director at Renault, said Renault’s entry in the WEVC London trial will complement Renault’s European research and development project with other partners to demonstrate wireless inductive charging of EVS “in a public environment with a high level of performance and safety.” This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. (Phys.org) — Renault and Qualcomm this week signed a Memorandum of Understanding that they will cooperate on work at the upcoming London trial of Qualcomm Halo Wireless Electric Vehicle Charging (WEVC) technology, an event to take place in a few months. Preparations underway for the WEVC trial involve an assembly of government authorities and businesses, to install and test wireless electric cars. UK company Delta Motorsport, an automotive and motorsport engineering consultancy, has agreed to participate in trials carried out on specially adapted E4 coupes, and France-based Renault will use its vehicles too. Qualcomm’s stated goal is to make the charging of electric vehicles simple and effortless, but the two-phase London trials will also provide some much-needed answers by industry players and consumers beyond ease and comfort. The trial will help to evaluate the commercial viability of wireless charging of electric vehicles; to better understand issues in integrating WEVC technology into EVs; the deployment of WEBC in a “megacity”; and to get user feedback on using WEVC-enabled EVs.center_img Citation: Renault joins London wireless EV charging trial (2012, July 26) retrieved 18 August 2019 from https://phys.org/news/2012-07-renault-london-wireless-ev-trial.html Qualcomm’s HaloIPT tech brings wireless charging for EVs Explore furtherlast_img read more

Genetic algorithms can improve quantum simulations

first_imgFor the first time, researchers have used genetic algorithms to reduce quantum errors in digital quantum simulations. Credit: U. Las Heras et al. ©2016 American Physical Society This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Now for the first time, researchers Urtzi Las Heras et al. at the University of the Basque Country in Bilbao, Spain, have applied genetic algorithms to digital quantum simulations and shown that genetic algorithms can reduce quantum errors, and may even outperform existing optimization techniques. The research, which is published in a recent issue of Physical Review Letters, was led by Ikerbasque Prof. Enrique Solano and Dr. Mikel Sanz in the QUTIS group.In general, quantum simulations can provide a clearer picture of the dynamics of systems that are impossible to understand using conventional computers due to their high degree of complexity. Whereas computers calculate the behavior of these systems, quantum simulations approximate or “simulate” the behavior.As a quantum technology, digital quantum simulations face many of the same challenges that confront the quantum computing field in general. One such challenge is information loss due to decoherence, which occurs when a quantum system interacts with its environment. In order to protect quantum simulations against this loss, scientists use quantum error correction protocols, which provide a kind of back-up by storing information in entangled states of multiple qubits using quantum gates.Storing information in an entangled state is a highly complex undertaking in the context of quantum error correction. For a system with just 4 qubits and 7 gates, the number of possible gate arrangements climbs into the trillions. Optimization techniques are used to sift through all of these designs and find the architecture that minimizes the error. In the new study, the researchers demonstrated that genetic algorithms can identify gate designs for digital quantum simulations that outperform designs identified by standard optimization techniques, resulting in the lowest levels of digital quantum errors achieved so far. Citation: Genetic algorithms can improve quantum simulations (2016, June 23) retrieved 18 August 2019 from https://phys.org/news/2016-06-genetic-algorithms-quantum-simulations.html © 2016 Phys.org Besides reducing errors due to decoherence, genetic algorithms can also reduce two other types of errors in digital quantum simulations. One type is the digital error created by the reduced number of steps used for approximating the algorithms. Another type of error arises from the imperfections in the construction of each of the gates. As the researchers explain, one reason why genetic algorithms perform so well is their adaptability. Just like natural selection adapts to changes in environmental conditions, genetic algorithms continually adapt to different constraints imposed by different quantum technologies. “Genetic algorithms are characterized by different features: adaptability and robustness,” Solano told Phys.org. “Their adaptability allows for a flexible and clever technique to solve different problems in different quantum technologies and platforms. The robustness of the algorithm yields solutions that are resilient against errors, which allows us to cancel different error sources. [Due to these characteristics,] our work provides a new flexible tool in quantum simulations that allows us to reduce the required physical resources while keeping the operation precision. It also reduces the total decoherence and digital error by seizing on the different unavoidable error sources to mutually cancel each other.”Genetic algorithms already have been used in a wide variety of applications, such as finding the most efficient electrical circuit design, finding the mirror orientation that focuses the maximum amount of sunlight onto a solar collector, and designing antennas that are optimally tuned for detecting specific types of signals.With help from genetic algorithms, future quantum simulations are expected to be useful for gaining a better understanding of complex physics, designing novel materials and chemicals, and solving problems in machine learning and artificial intelligence.”These techniques could be used to solve problems that require resources unaffordable for present and future digital quantum simulations and gate-based quantum computing, by reducing and optimizing them,” Solano said. “Also these techniques could easily decompose a problem into quantum gates adapted to different quantum platforms and quantum technologies. Finally, these techniques could also be applied to different problems in quantum computation and quantum information, such as the design of improved qubits, for instance. Needless to say, quantum simulations and quantum computing aim at the big picture: artificial intelligence, pattern recognition, design of new materials and chemicals, solving complex problems in aerodynamics, and quantum field theories, among many others.” Google combines two main quantum computing ideas in one computer Journal information: Physical Review Letters (Phys.org)—Inspired by natural selection and the concept of “survival of the fittest,” genetic algorithms are flexible optimization techniques that can find the best solution to a problem by repeatedly selecting for and breeding ever “fitter” generations of solutions. Explore further More information: U. Las Heras et al. “Genetic Algorithms for Digital Quantum Simulations.” Physical Review Letters. DOI: 10.1103/PhysRevLett.116.230504last_img read more

Why You Want to Eat This Baby Up Its Science

first_imgAnyone who has been on the internet lately knows that cuteness can get weird: lemurs with Keane-painting eyes, infants dressed as peapods, cats with toast on their heads. The internet offers up achingly sweet “cute porn” because those images grab our attention. There’s something almost aggressive about the way we crave cuteness. A social psychologist named Oriana Aragón, who was then teaching at Yale, happened to be watching. In the days that followed, she found herself pondering a subject that doesn’t usually receive much attention from the scientific community: cuteness. Read the whole story: The New York Times They couldn’t understand. And the truth is, I couldn’t either. Why are most people born with the urge that drives them to have children and others, like me, not? I began to wonder if science had an answer. Several years ago, the actress Leslie Bibb perched next to Conan O’Brien’s desk and riffed about a baby so cute that it drove her crazy. She pantomimed her extreme reaction to the infant by gritting her teeth and clenching her fists. — One night back in the 1990s, I dreamed that I’d been stabbed in the stomach. When I bolted awake, pain sent me hurtling to the bathroom where I threw up. It felt as if a creature inside my belly was trying to claw its way out. —last_img read more

A day dedicated to dance

first_imgWith a vision to provide young dancers with an eclectic opportunity so that true talent nurtures and pans into expanding horizons, the dance community have come together to observe the World Dance Day. Propounded by dancer/ choreographer Geeta Chandran, the event will present young dancers from Natya Vriksha celebrating the spirit and devotion to the art form.This festival is organised in collaboration with the Ministry of Culture, UNESCO, Sangeet Natak Akademi, NTPC and India International Centre. Also Read – ‘Playing Jojo was emotionally exhausting’Expanding over two days, the first day will feature an open-house seminar discussing what is classical in dance and will conclude with two performances (Kathak and Kutiyattam each). The second day will witness the young dancers festival by putting up Bharatnatyam and Sattriya performances by Aditi Balasubramanian and Anwesa Mahanta respectively.Other artists participating include names like Swati Sinha, an ‘A’ grade artist of Doordarshan she has performed in major cultural events such as Khajuraho Dance Festival and Spic Macay. Aditi Balasubramanian is touted to be a Bharatnatyam child prodigy, she is merely 12 years old. Lastly Anwesa Mahanta, has been an active performer since 2001 presenting Sattriya in its solo form.DETAILWhere- India International Centre Auditorium 40, Max Mueller Marg, Lodi Estate When- 27 and 28 AprilTimings- 3.30 pm – 6.30 pmlast_img read more

Narrating tales from an era bygone

first_imgDesires Unlimited, a Delhi based theatre group, is soon presenting the city’s first classical theatre festival titled Epoch – A Classic Theatre Festival. Commencing on 8 March, the festival will showcase the group’s flagship plays which include 3, Sakina Manzil and Rope, that are based on a bygone era.Epoch is set in a month, which is known for its significance be it historic or social. The festival captures two prominent yet classical themes of the month of March: ‘spring’ and Idus Martii (Ides of March). The Gandhian love story based in a pre-independent India, 3, Sakina Manzil promises to be refreshing like the spring. While, the play Rope which is a classic murder story, resonates with the touted Ides of March known popularly for assassination of Julius Caesar by Brutus. Also Read – ‘Playing Jojo was emotionally exhausting’The play 3, Sakina Manzil which will be staged on 8 and 9 March is set in pre-independence era when the country was fighting for its independence, when the world was being ravaged by World War II, and the Hindi film Industry was learning to stand on its feet. Amidst all this, in an old apartment building of Bombay, 3, Sakina Manzil, a love story of two silent lovers Shashi and Comrade Shashi unfolds. Torn apart by destiny, they tread different paths only to meet again after five decades. The play explores how people despite the crisis of their times, managed to fall in love and sustain it over the years, no matter the distance or time that separated them.  The other play Rope being staged on 15 and 16 March, questions how we view murder. Also Read – Leslie doing new comedy special with NetflixDaniel and Sunny, graduates from St. Georges College Mussorie, fancy the notion of murder being an art. Influenced by Nietzsche and their own Prof. Kohli’s theories about superior beings, they consider themselves superior to their innocent classmate and strangle him. The two then call for a party and serve food from the chest that contains Dilip’s corpse. To add to the thrill, the guests include Dilip’s relatives, friends and Prof. Kohli. The plot thickens when Sunny starts to crack-up under pressure and Prof. Kohli begins to suspect. Desires Unlimited, established in 2006, is a production house for digital audio visual content. It was co-founded by a group of engineers cum artists from IIT Delhi. Though IITians are known for their Silicon Valley startups, these youngsters opted for a different playground all together. The group has created corporate films for brands such as Britania, Samsung, and Pricewaterhouse Coopers (PwC).WHEN: 8-16 MarchWHERE: LTG Auditoriumlast_img read more

Restoring paradise

first_imgAs you enjoy winter this year, don’t forget the plight of the Jammu and Kashmir people who were affected by the recent flood. To ‘Spread the warmth’ and extend a supportive gesture, DLF Place, Saket in association with Cequin Ngo presents Spread The Warmth campaign. A social endeavour to bring back the glory of Kashmir by facilitating the victims with warm clothes, blankets, shoes and other useful materials.DLF Place, Saket is also holding an art exhibition in association with Delhi Street Art group. The art group is also be showcasing live painting sessions till 20 November  at the centre court Also Read – ‘Playing Jojo was emotionally exhausting’of the mall.The campaign was flagged off by Sara Pilot (Chairperson, Cequin) along with other well known faces of New Delhi like Jai Madan, Promila Bahri, Viraj Bahri, Jayashree Raghuram and others. All of them came forward to donate generously in order to support this noble cause. Café Delhi Heights, treated guests with delectable refreshments, appreciating their valued effort.  Benu Sehgal, Mall Head, Mall Management DLF Place, Saket said ‘The difficulty of the people of Jammu and Kashmir has always been a matter of concern, it’s just the floods have only made it worse. We urge people to take a pledge to contribute as much as they can to keep the needy warm and to bring a smile on their faces this winter. We feel it’s a great opportunity for everyone to do their bit for their well being. Each drop of support counts for them to settle back after this massive disaster’.Where : DLF Place, Saket When: 20 Novemberlast_img read more

Fire breaks out at multistoreyed building on AJC Bose Road

first_imgKolkata: A fire broke out at a multi-storeyed building on AJC Bose road near Mullick Bazar on Wednesday afternoon triggering panic in the area.The fire took place on the third floor of the building, where spare parts of vehicles were stored. No casualty or injury has been reported in the incident so far.Locals spotted smoke billowing out of the building at around 12 pm and reported the matter to the fire brigade. The area was soon covered in black smoke and people started running from one place to the other for shelter. Also Read – Heavy rain hits traffic, flightsSome people, who were in the other floor of the building, panicked and left the building. After being informed, the fire brigade officials rushed to the spot and as many as ten fire-tenders were pressed into action to douse the flames. Police cordoned off the entire area to check any untoward incidents. Moulali bound vehicles were diverted due to fire incident. There was a huge traffic jam in the area. The situation became normal a couple of hours later. Locals also took part in the rescue operation. They rescued the people who were inside the building and removed them to prevent any accident. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed They initially tried to restrict the fire from spreading to other rooms. The fire fighters later restricted the fire from spreading into the adjacent buildings.The situation was brought under control within one hour. According to a preliminary investigation, police and fire officials suspect that some inflammable materials might have been stored which aggravated the situation. The exact cause of the fire and the extent of the damage are yet to be ascertained. A detailed probe has been initiated in this regard.last_img read more

Innovation and food

first_imgIn an endeavour to evolve the food and beverage industry in India, Lite Bite Foods with HMSHost will together bid to acquire the rights, to launch and operate International and domestic food and beverage outlets at retail destinations like airport, train stations and highways across India. HMSHost is the world’s largest provider of food and beverage (F&B) services.The joint venture will operate under the name Lite Bite Foods HMSHost and will be based out of Gurgaon. Also Read – ‘Playing Jojo was emotionally exhausting’With HMSHost’s presence across the dynamic F&B markets in the world, it will bring tremendous opportunities for Lite Bite Foods to enter new markets.The joint venture will operate under the name Lite Bite Foods HMSHost and will be based in Gurgaon. While HMS will own 51 per cent of the joint venture, Lite Bite Foods will own the remaining 49 per cent. The association combines the global resources and expertise of HMSHost and Lite Bite Foods. The partnership will capitalize on the strong reputation HMSHost has developed as a leading provider of food and beverage services for travellers. Lite Bite Foods will use its expertise in operating outlets at Delhi and Mumbai airports and its robust presence across the country.  Also Read – Leslie doing new comedy special with NetflixElaborating upon the plans, Lite Bite Foods chairman Amit Burman said: “Lite Bite Foods has in its fold a number of strong food retail brands like Baker’s Street, Punjab Grill and Fresc Co, and Autogrill, is among the oldest and the leading F&B service provider for travellers across the globe. The new company has the combined value of Autogrill’s International expertise and experience and Lite Bite Foods’ extensive local market and cuisine knowledge and network of established outlets. This agreement represents each organization’s strong commitment to provide the best F&B retail experience to our consumers across all travel channels. Together, we will bring an exciting new force to the country’s travel food retail industry and revolutionise this emerging channel.” Adding further comments, Rohit Aggarwal, Director, Lite Bite Foods said, “Lite Bite Foods HMSHost proposes to acquire the rights to operate outlets at the airports in India and neighboring countries, at these locations, we plan to increase the brand presence of all our brands at strategic locations.” Sharad Sachdeva, CEO, Lite Bite Foods said, “With millions of passengers travelling annually, the transit hubs like airports and railway station have become a strategic location for our brand’s presence. We are very excited about this joint venture and this association will definitely help extend our brand in neighboring countries as well.” “This partnership is an important step forward in the strategy of expansion in emerging markets, especially in Asia, which the group has been adopting in recent years,” said HMSHost International CEO Walter Seib. “We are confident that the know-how developed by Autogrill on an International level and Lite Bite Foods’ knowledge of the Indian market will enable the two companies to successfully expand in all the travel channels in the country,” he added.last_img read more

Hate waiting in queues Now book prepaid taxis through app at Kol

first_imgKolkatA: Bidhannagar Police has introduced an app based booking service at Kolkata airport for passengers.On Monday, Deputy Commissioner (headquarters) Amit Javalgi informed that from now on passengers would be able to book a yellow or white and blue no refusal taxi in advance.According to the officials, till Sunday one could only book a taxi by being present in person at the prepaid taxi counter near 3C gate.To make the process more convenient and user-friendly, high ranked police officials came up with the idea of this app. People can now download the app named ‘Bidhannagar Police Prepaid Taxi’ from Google play store.”Following the installation of the app, a person need to register himself by putting information such as name, mobile number, e-mail address on the app. After successful completion of the registration process, one can book a taxi whenever he or she needs to. Payment can be made through net banking, credit or debit cards. There is no need to wait in a queue,” said an official from Bidhannagar Police.Following a booking, one needs to scan a QR code which will be available at a kiosk opposite to 4A-4B gate. After the scanning process, one will get the vehicle registration number on which they have to board. At present, taxis make enter inside the airport terminal through a Radio Frequency Identification Device (RFID) scanner which is installed beside Netaji Subhas Chandra Bose International (NSCBI) Airport traffic guard.The passengers will get the taxi registration number after the taxi goes through the RFID scanner.last_img read more