See through smoke and fog, map a person’s blood vessels while monitoring heart rate – without skin contact; look through the silicon wafers to check the quality and composition of the electronic board. Those are some of the many functions of infrared camera new, developed by a team of researchers led by electrical engineers at the University of California San Diego. The camera detects a part of the infrared spectrum known as shortwave infrared light (wavelengths between 1000 and 1400 nanometers), which lies just outside the visible spectrum (400 to 700 nanometers). Shortwave infrared imaging, unlike thermal imaging, detects much longer infrared wavelengths emitted by the body. The camera works by shining short-wave infrared light at an object or area of ​​interest, then converting the reflected low-energy infrared light back to the device into shorter, high-energy wavelengths. than the human eye can see. “It makes invisible light visible,” said Tina Ng, professor of electrical and computer engineering at UC San Diego Jacobs School of Engineering. When technology Infrared imaging has been around for decades, where most systems are expensive, cumbersome, and complex, often requiring a separate camera and monitor. They are also often made with inorganic semiconductors, which are expensive, hard, and contain toxic elements such as arsenic and lead. The infrared camera that Ng’s team has developed overcomes these problems. It combines sensors and display into a slim, compact and simple device. It is made of organic semiconductors, so it is low cost, flexible and safe for use in biomedical applications. It also offers better image resolution than some of its inorganic versions. The camera is made up of multiple layers of semiconductors, each hundreds of nanometers thin, stacked on top of each other. Three of these layers, each made of a different organic polymer, are the key elements of the image: the photodetector layer, the organic light-emitting diode (OLED) display layer, and the blocking layer. electrons in the middle. The photodetector layer absorbs shortwave infrared light (low energy photons) and then generates an electric current. This current flows to the OLED display layer, where it is converted into a visible image (high-energy photons). An intermediate layer, called an electron block, keeps the OLED display layer from losing any current. This is what allows the device to produce clearer images. Another special feature is camera effective in providing optical and electronic indicators. “This makes it multifunctional,” says Li. For example, when the researchers shined infrared light on the back of the subject’s hand, the camera provided an image of the subject’s blood vessels while recording the subject’s heart rate. The researchers also used their infrared camera to see through the fog and a silicon wafer. In one test, they placed an “EXIT” patterned photosphere in a small room filled with smog. In another setting, they placed a photorealist patterned “UCSD” behind a silicon wafer. Infrared light penetrates both smog and silicon, making it possible for the imagineer to see the letters in these illustrations. This would be useful for applications such as helping self-driving cars see in bad weather and checking for silicon faults. The researchers are currently working to improve the performance of this type of camera.

For many consecutive days, the world media has been flooded with heartbreaking information and images from today’s most devastating pandemic hotspot. Many patients in India die while waiting for their beds, oxygen supplies depleted in hospitals leading to tragic deaths beyond imagination. “India experienced its worst day because of Covid-19” became the headline used by many newspapers day in and day out. Photo: Reuters. After surpassing the US daily record for the first time on April 22, with 315,000 new cases, India has continuously set new records in the past few days. Photo: Reuters. India is suffering from the darkest chapter of the pandemic. Bodies were piled up in crematoria. Many cremation facilities operate non-stop, staff here say they get almost no rest. Photo: Reuters. In Hinduism, cremation is traditionally the most important part of funeral rites as these religious believers believe that the body must be cremated in order for the soul to transcend. Photo: Reuters. On April 29, the country recorded 379,257 new cases of Covid-19 and 3,645 people died from the pandemic. To date, the number of Covid-19 cases in India has reached 18.38 million, of which 204,832 died, according to the Ministry of Health of India. In the capital New Delhi, 27 temporary crematoriums were built at the Sarai Kale Khan crematorium. Dozens of other rigs are being added in a nearby park. Officials are also looking for more space near the city’s Yamuna River, according to the Guardian. Trees in the park were cut down to make a pyre. Photo: Reuters. Experts fear the actual number of cases in India could be up to 30 times higher, which is more than half a billion cases, according to CNN. The country’s daily death toll is expected to continue to rise through mid-May, according to predictive models from the University of Washington Medical Metrology and Evaluation Institute in the United States. The death toll could reach more than 13,000 a day, more than four times the current daily death toll, according to projections. Photo: Reuters. Jitender Singh Shanty is doing more than 100 cremations a day at a crematory in east New Delhi. “If more bodies are received, we will cremate the streets. There are no more vacancies here, ”said Shanty. Photo: Reuters. An employee in protective clothing is digging a grave to bury the victim of Covid-19’s death in Gauhati, India. Photo: AP. In city cemeteries such as New Delhi, which records the highest number of illnesses each day, ambulances line up waiting for the body to be cremated. The burial place was slowly shrinking in the cities, the flames burning through the night. Photo: Getty. India’s “fall” is believed to have stemmed from many causes such as lack of preparation, neglect of epidemic prevention, lack of medical equipment, and a rapidly spreading new strain. Photo: Reuters. “No New Delhi has ever seen such a scene. The bodies of 5-year-old children, 15-year-olds, and 25-year-old youth were burned. Even newlyweds are the same. It’s heartbreaking, ”Jitender Singh Shunty, a nonprofit medical provider, told Reuters. In the photo is a mass cremation of the victims of Covid-19 death that took place at a site in New Delhi, India on April 22. Photo: Reuters. Crowds of people also play a huge role in the spread of the virus in India. Blockade and quarantine restrictions are believed to have been lifted too soon in the world’s second most populous country. Residents are allowed to organize major parades. Hindu festivals attract tens of millions of pilgrims. These people often gather in cramped locations without protection. Pictured is the scene of Indians dancing during the Holi Spring Festival in Prayagraj city, Uttar Pradesh state on March 29. Photo: AP. Millions of voters still vote in the final stages of elections in West Bengal state, despite the record-rising deaths and infections caused by Covid-19. In the photo is the scene of people waiting in line to vote at the polls on April 29. Photo: AFP. Countries have already begun to take measures to help India. The White House on April 28 said it would provide $ 100 million in aid to India, including 1,000 medical oxygen cylinders, 15 million N95 masks and one million Covid-19 rapid test kits. The US is lifting a ban on sending raw materials abroad, enabling India to produce more AstraZeneca vaccines. Photo: AP. The 105-year-old man ‘defeated’ Covid-19 in India Dhenu Umaji Chavan (105) and his wife (95) contracted Covid-19 in March. Both were discharged earlier this month after being treated at a hospital in Maharashtra state.

Recently, on social networks, there has been a situation of buying and selling clips from camera accounts stolen by bad objects. Depending on the quality of the content, the associations that sell the 18+ clip will collect a fee from 100,000 to 250,000 VND per joining. Not only providing depraved content, some groups also share hacked camera access accounts for a package fee of about 3-4 million VND. The fact that cameras are installed everywhere, the number of cameras is constantly increasing, making data from the camera a source of information targeted by many objects. (Artwork: Internet) According to experts of the National Cyber ​​Security Monitoring Center (NCSC), the Information Security Department, the Ministry of Information and Communications, the sale of account information on social networks is not a new behavior, but it has exported. appeared long ago. However, in the past, normally subjects only sold bank accounts, social networks or accounts containing information such as email, phone number, identity card number … Nowadays, when cameras are installed everywhere, the number is constantly increasing, being a source of information targeted by many audiences, the camera account also becomes “hot goods” on the account trading pages. “This form of purchase is becoming more popular because the number of cameras is increasing. Victims who lost their camera account can be monitored by others through their own camera, ”said the NCSC representative. Many users accidentally revealed the camera system login information According to experts, there are many reasons for the widespread purchase and sale of clips and camera accounts on the network, in part due to regulations and sanctions against acts of buying, selling and distributing personal data. not enough deterrent. Commenting on the reason that the personal camera system is vulnerable to hacker attacks, both subjectively and objectively, NCSC’s representative said: “Subjective is because users accidentally reveal account login information. camera. And objectively, because users use poor quality camera equipment, do not ensure enough information security, leading to the device can be hacked by hackers, thereby getting the login account “. Having the same opinion with the representative of NCSC, a security expert for IoT devices at Viettel Cyber ​​Security, Ha Toan, emphasized: A fundamental reason that makes personal and household cameras easy. Hacker attacks are due to the user’s limited knowledge of using IoT devices or cameras. For example, do not change the default password of the device when it is put into use. According to Toan, another reason is that the camera device of the manufacturer does not have a protection mechanism such as verifying the integrity of the firmware running on the camera device, allowing hackers to buy camera equipment and insert backdoors. (back door – PV) and then sold to the market. “During the work, we also discovered many backdoors allowing remote access in cameras originating in China”, Viettel Cyber ​​Security expert added. Along with that, there are cameras that have vulnerabilities in firmware due to programming errors such as buffer overflow, hardcode login information, logic errors … allowing hackers to exploit to take control of the device. Camera account information can also be revealed because the installation staff deliberately fails to notify the password change during installation or notice the change but does not notice the change of the entire service as mentioned above also includes services RTSP, onVIF. Raise awareness of personal information protection, choose a reputable camera To overcome the widespread situation of buying and selling clips, camera accounts in particular as well as personal information and data, experts say that the Decree on personal data protection should be issued soon and come to life. This draft Decree has regulated heavy fines for violations of personal data protection regulations. “The more penalties for handling violations related to the purchase and sale of personal data will help increase deterrence and reduce the rate of violation”, expert of Vietnam Cyber ​​Security Joint Stock Company (VSEC) Vuong Trong Nhan stated his point of view. But experts also emphasized the limitation in the sense of protecting personal data of users as well as the organization providing services related to user data. Making recommendations to users, VSEC experts advise them to first increase their sense of self-protection by not using the camera manufacturer’s default password, setting a strong password and setting a Private network system is only for indoor security equipment, instead of sharing the same Wi-Fi network. According to representatives of NCSC, individuals and businesses when using cameras need to have strict regulations and decentralization when allowing users to access their camera systems, need to change passwords regularly to avoid in case the login information is known by many people, the risk of leaking is also higher. Emphasizing on the safety factor of the device, experts say that choosing to buy cameras manufactured from major brands, products that have been assessed for information security as well as choose a reputable installation unit. is an effective solution to help users avoid the risk of information insecurity. On the other hand, is it time for camera manufacturers to pay more attention to whether their equipment meets information security requirements?

Many people gathered outside Buckingham Palace on April 9 (local time) after the news of Prince Philip’s death was announced by the British Royal. Photo: Reuters Many Londoners come in front of the gates of Buckingham Palace, the ancient walls of Windsor Castle to place flowers and a memorial card in memory of Prince Philip. The British government and royal family are calling on people not to gather in front of the mansion to commemorate Prince Philip in order to comply with Covid-19 room regulations. Residents set the flag of England along with commemorative bouquets of flowers outside Buckingham Palace. Reuters photo Information Prince Philip – Duke of Edinburgh passed away was announced by the British royal family on April 9. He is 99 years old. Photo: Reuters Coach and players at Liverpool Aintree Racecourse spent a minute to commemorate Prince Philip’s departure on April 9. Photo: Reuters 2 of the many women standing outside Buckingham Palace hugged each other to comfort and share the sadness following the death of the Queen’s husband. Photo: Reuters A man wiped his tears outside Buckingham Palace after the royal family announced the Prince’s death. Photo: Reuters According to an announcement from Buckingham Palace, the 94-year-old Queen is expected to spend eight days mourning Prince Philip, starting April 9. The flag on Victoria Tower at the British Parliament Building, London, was lowered by half a column when the news of Prince Philip’s death was announced. Photo: Reuters Many people brought flowers, photos … to commemorate at Buckingham Palace (UK) after hearing the news of Prince Philip’s death. Photo: Reuters Many people mourn the death of Prince Philip – who quietly supported the Queen of England during the past 7 decades. Photo: Reuters Sharing about her husband, Queen Elizabeth once said that Prince Philip was a source of her strength throughout the years. In the photo: People place flowers to commemorate Prince Philip at Windsor.

Question series like “Style make-up Which one is suitable for photo card? “,” Should have bangs when taking photo card? “… occupied social network with bad advice from online community. These questions have received the attention of the online community. – Make-up light, important at taking pictures no should be staring into the camera, so looking lightly over his shoulder to take the photo, smiling lightly. Wish you have the perfect photo … don’t be like me, just put your butt down and make a cup … – Best distance, second speed. The first is to sit away from him to take the photo, do not let his face get too close then when it comes time to take the photo, only part of his face is visible. The second is to pose very quickly, because you shoot extremely fast, one second to close your eyes badly for 5 years. – At the age of 15, he took a photo and said: “Go get water and stroke all of your hair”. I also obey, and that is a mistake. You can use concealer to avoid this. Some netizens also make their own donations make-up unique that you shouldn’t follow anymore. Such as: “ Wearing a star makeup that everyone has to ask to remove is fine “,” The shooting background is the white background, n So you can use black or red tone. This will make your face stand out “. Just kidding, if you want to have good pictures on your CCCD card, you can keep some notes about taking pictures as your identification! There is no regulation that requires an identity person not to wear make-up or beautify with fashion accessories. You just need to have a clear picture of your face, two ears, and no glasses. You should also not dye your hair brightly and must wear decent clothing. You can refer to some roof claws from YouTubers. (Photo: Trinh Pham) The secret to making a CCCD card is to make up lightly enough to prevent your face from turning pale under bright lights when taking pictures. If the makeup is thick, you may be asked to remove the makeup because it is difficult to identify, or the image will be overly darker than usual, causing it to be flashy! Clause 1, Article 12 of Circular 07/2016 of the Ministry of Public Security clearly states that portrait photos of citizens are face-to-face photos, with bare head, clear face, clear ears, no glasses; Serious and polite attire and manners are not allowed to use specialized outfits when taking photos of a citizen’s identity card. In cases where a citizen follows a religion or ethnicity, he / she is allowed to wear the religious dress, if there is a head scarf, he / she will be allowed to keep the same when taking a photo of the citizen’s identity card but must ensure a clear face.

The campaign “Music Takes Us Further” of TOMMY JEANS in Spring 2021 is based on the longstanding musical heritage of the brand. The campaign is brought to life by a combination of creative talents including musicians like Jay Park, poets and activists from many different walks of life. Each person shares their unique perspectives on using music to foster social change, inspiring fans to build a sustainable future with the message “Wastes Nothing and Welcomes All”. The collection TOMMY JEANS Spring 2021 brings a modern and powerful change in the classical style. To continue the brand’s ambitious sustainability mission, high-tech innovations create materials that are ever more sustainable. Since then Tommy has introduced 100% recycled denim fabric created using an innovative technique to blend bed sheets with other recycled cotton materials, far exceeding the usual average of 30% cotton. Recycling. Water-saving treatment technology helps Tommy save up to 50 liters of water per garment compared to similar denim types. TOMMY JEANS is Tommy Hilfiger’s youth fashion brand, inspired by the simple and modern classic American style denim. Perform: Tuan Anh

Author: boat, Chen Ping

A new architecture called MobileStyleGAN greatly reduces the number of parameters based on style GAN and reduces computational complexity.

In recent years, in generative image modeling, there have been more and more applications of generative confrontation networks (GAN). Style-based GAN can generate different levels of detail, ranging from the shape of the head to the color of the eyes. It implements SOTA in high-fidelity image synthesis, but the computational complexity of the generation process is very high. It is difficult to apply to mobile devices such as smart phones.

Recently, a study focusing on the performance optimization of style-based generative models has attracted everyone’s attention. This research analyzes the most difficult computational part of StyleGAN2 and proposes changes to the generator network, making it possible to deploy a style-based generation network in edge devices. The research proposed a new architecture called MobileStyleGAN.Compared with StyleGAN2, the amount of parameters of this architecture is reduced by about 71%, the computational complexity is reduced by about 90%, and the quality of the generation is almost unchanged.

Comparison of the generation effect of StyleGAN2 (top) and MobileStyleGAN (bottom).

The author of the paper has put the PyTorch implementation of MobileStyleGAN on GitHub.

Paper address: https://arxiv.org/pdf/2104.04767.pdf

Project address: https://github.com/bes-dev/MobileStyleGAN.pytorch

The training code required for this implementation is very simple:

The effect of StyleGAN2 (left) and MobileStyleGAN (right) is shown.

Let’s take a look at the details of the MobileStyleGAN architecture.

MobileStyleGAN architecture

The MobileStyleGAN architecture is built on the basis of the style generation model. It includes a mapping network and a synthesis network. The former uses the mapping network in StyleGAN2. The focus of this research is to design a computationally efficient synthesis network.

The difference between MobileStyleGAN and StyleGAN2

StyleGAN2 uses pixel-based image representation and aims to directly predict the pixel value of the output image. MobileStyleGAN uses frequency-based image representation to predict the discrete wavelet transform (DWT) of the output image. When applied to 2D images, DWT converts the channels into four channels of the same size, which have lower spatial resolution and different frequency bands. Then, the inverse discrete wavelet transform (IDWT) reconstructs the pixel-based representation from the wavelet domain, as shown in the figure below.

StyleGAN2 uses a skip-generator to form an output image by explicitly summing the RGB values ​​of multiple resolutions of the same image. The study found that when the image is predicted in the wavelet domain, the prediction head based on skip connection has little effect on the quality of the generated image. Therefore, in order to reduce the computational complexity, this study replaces the long jump generator with a single prediction head of the last block in the network. But predicting the target image from the middle block is of great significance for stable image synthesis. Therefore, this research adds an auxiliary prediction head to each intermediate block and predicts it according to the spatial resolution of the target image.

The prediction head difference between StyleGAN2 and MobileStyleGAN.

As shown in the figure below, modulation convolution includes modulation, convolution and normalization (left). The depth separable modulation convolution also includes these parts (middle). StyleGAN2 describes modulation/demodulation for weights, and the study applies them to input/output activations respectively, which makes it easier to describe depth separable modulation convolution.

The StyleGAN2 building block uses ConvTranspose (left in the figure below) to upscale the input feature map. The research uses IDWT as the upscale function in the MobileStyleGAN building block (right in the figure below). Since IDWT does not contain trainable parameters, this study adds additional depth separable modulation convolution after the IDWT layer.

The complete building block structure of StyleGAN2 and MobileStyleGAN is shown in the figure below:

Distillation-based training process

Similar to some previous studies, the training framework of this study is also based on knowledge distillation technology. The research uses StyleGAN2 as a teacher network and trains MobileStyleGAN to imitate the functions of StyleGAN2. The training framework is shown in the figure below.

Build new, see wisdom – 2021 Amazon Cloud Technology AIOnline conference

April 22, 14:00-18:00

Why do so many machine learning loads choose Amazon Cloud Technology? How to achieve large-scale machine learning and enterprise digital transformation?

“Building New · Seeing Wisdom-2021 Amazon Cloud Technology AI Online Conference” is led by Alex Smola, vice president of global artificial intelligence technology and outstanding scientist of Amazon Cloud Technology, and Gu Fan, general manager of Amazon Cloud Technology Greater China Product Department, and more than 40 heavyweights Guests will give you an in-depth analysis of the innovation culture of Amazon cloud technology in the keynote speech and 6 major sub-venues, and reveal how AI/ML can help companies accelerate innovation.

Session 1: Amazon Machine Learning Practice Revealed

Session 2: Artificial Intelligence Empowers Digital Transformation of Enterprises

Session 3: The Way to Realize Large-scale Machine Learning

Session 4: AI services help the Internet to innovate rapidly

Session 5: Open Source and Frontier Trends

Sub-venue 6: Intelligent ecology of win-win cooperation

Which topic are you more interested in in the 6 major conference venues?

Recently, Tiktok social media users are hand-in-hand clips of cigarette smoke under a microscope to clearly see the level of toxicity. Accordingly, the person who made the plastic bottle for fresh water used up poured filtered water near the bottle and covered it. On the lid of this bottle will be punched a hole so that it fits the smoking head. They set the cigarette on fire and put all the smoke through the bottle. Then tobacco smoke will pass through the filter.

As a result, removing the filter plate is obtained filter plate imbued with tobacco essential oil. “This essential oil contains a lot of toxic substances such as lead, arsenic, ammonia, cyanide – which is the main cause of lung cancer, sudden infant death syndrome and many other diseases.”

In front of the clip of cigarette smoke under a microscope, many people left comments expressing awe even though the harm of tobacco has so far been greatly mentioned. One account commented: “This is just a cigarette and the filter is so golden, it is not understood to those who one day smoke 1 sack, 2 bags, what their lungs will be like.”. Many others expressed their horror, their desire to see e-cigarettes…

How dangerous is smoking really?

As noted by the World Health Organization, tobacco is the main cause of deaths worldwide, and is the leading cause of disease that can actually be prevented. Every year, tobacco lives nearly 8 million people around the world, including more than 5 million who have been and are smoking, 1 million of them innocent – they are passive smokers.

Prof. Luong Ngoc Khue (Director General of The Medical Examination and Treatment Management Department, Ministry of Health, as well as Director of the Tobacco Harm Prevention Fund) shared that Vietnam has 33 million people who do not smoke but regularly inhale smoke at home and more than 5 million non-smoking adults regularly inhale smoke in the workplace. These figures are enough to show how dangerous the horrific harm of passive smoking is.

The percentage of patients with lung cancer who smoke is 96.8%. Diseases and premature death from tobacco use account for 12% of the total burden of disease in Vietnam.

Tobacco is the main cause of deaths worldwide, and is the leading cause of disease that can actually be prevented.

Diseases directly caused by tobacco use such as stroke, coronary artery disease, chronic obstructive pulmonary disease, lung cancer are the leading causes of death in both men and women. Tobacco causes 25 different diseases but in general, tobacco causes 90% of lung cancer cases, 75% of chronic obstructive pulmonary cases and 25% of isotonic heart disease cases.

Speaking about the harmful effects of tobacco, Former Minister of Health Nguyen Thi Kim Tien cited that 90% of the more than 600,000 people with lung cancer annually in the world are smokers. Smoking is also the cause of 75% of chronic obstructive pulmonary diseases.

Obviously, smoking is very harmful to health. But it is worth mentioning here that smoking not only harms the person who directly smokes, but is also dangerous for those who do not smoke but accidentally have to inhale the smoke released by others. In particular, there are cases where the victims are extremely tragic women and children. They may be wives, children of smokers so that when the heartbreak happens, the husband, the father, even regrets, can not be saved.

Children who inhale tobacco smoke (passive smoking) are subjected to

the most severe consequences

According to information from the Tobacco Harm Prevention Fund (Ministry of Health), globally, it is estimated that every year up to 165,000 children die before the age of 5 from lower respiratory tract infections caused by passive smoking.

It is estimated that up to 165,000 children die before the age of 5 from lower respiratory tract infections caused by passive smoking.

Representatives of the Tobacco Harm Prevention Fund said that children who smoke passive cigarettes are at risk of developing asthma, pneumonia, bronchitis, respiratory infections … In addition, children who inhale second-line smoke may suffer health consequences in adulthood such as an increased risk of chronic obstructive pulmonary disease due to frequent lower respiratory tract infections. Babies exposed to toxins in smoke from the time they are in the womb will experience delayed development of lung function.

Ass. Dr. Nguyen Tien Dung (former Head of Pediatrics Department, Hospital Bach Mai) added that there is a fact that children admitted to hospital due to respiratory diseases with parents smoking cigarettes are much higher than children whose parents do not have this behavior.

“Young children are the most affected when there are smokers in the house.”, the expert asserts.

He voiced a profound warning to children with parents who smoke cigarettes the increased risk of sudden infant death, an increased risk of children with acute asthma and asthma. When you smoke, your smoking smoke increases the risk of asthma exacerbated, increasing the risk of chronic otitis in children. If you smoke, that risk doubles. If both parents smoke together, the risk increases even more.

Pregnant women who inhale tobacco smoke face a range of risks

Tobacco smoke contains up to 7,000 types of chemicals. Among these, there are more than 70 types of chemicals that are toxic to humans, leading to cancers, with typical ingredients such as nicotine, carbon monoxide, cyanide, lead … If the mother actively or actively inhales tobacco smoke, these toxic substances can follow the blood and transmit it to the fetus.

For pregnant women, passive smoking can cause still life and miscarriage. When pregnant women inhale tobacco smoke, nicotine and other toxic substances will pass through the lungs into your bloodstream and go directly to the baby. This can cause risks such as fetal developmental delay, increased risk of premature birth, causing brain and lung damage to the fetus, increasing the risk of still life…

It is worth mentioning that pregnant women often have weaker-than-normal resistance. Whether accidentally or intentionally exposed to tobacco smoke causes serious effects on the mother and fetus, which can lead to thyroid problems, premature amniotic rupture.

Therefore, preventing the effects of tobacco smoke on pregnant mothers is necessary to protect the health of both the mother and the fetus. Pregnant women should avoid going to crowded places as well as family members also actively eliminate smoke when there are pregnant women.