XNUMXD scanning system. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

XNUMXD scanning system

10.04.2013

Specialists from the Scottish Heriot-Watt University have created an original scanning system that allows you to create a three-dimensional model of an object located at a distance of almost 1 km. This is not about a stereo image, but about a three-dimensional, three-dimensional, high-resolution model that can be "twisted" and viewed from different angles. Until now, it was possible to make such a model only after shooting an object from different angles, but the new time-of-flight (ToF) technology allows you to do this from a long distance and, in fact, from one point.

ToF technology is currently widely used for machine vision. At Heriot-Watt University, it was creatively redesigned and created a "long-range" device for volumetric photography. The essence of the technology is as follows: a low-power infrared laser beam quickly scans an object, pixel by pixel, registering the time of flight of photons back and forth. The system has a resolution of a matter of millimeters, since it is equipped with a sensor capable of capturing individual photons.

The new scanner is especially good if you need to detect objects hidden behind some kind of "chaotic heap" of objects, for example, the foliage of trees. However, while he cannot take a detailed picture of a human face - in the pictures it looks like a dark spot. This is due to the fact that at long wavelengths the human face does not reflect a sufficiently large number of photons. However, the reflectivity of the skin can change under different circumstances, for example, dry skin can be distinguished from sweaty skin. Also, the new scanner easily distinguishes a mannequin from a living person.

Currently, the developers are planning to increase the speed of the scanning system: so far, a high-resolution image can be obtained in only 5-6 minutes, although theoretically this can be done in just a few seconds. The existing delay is due to too slow image processing on the computer.

It is planned to use high-speed solid-state drives (SSD) and a more powerful computer. According to the researchers, this will reduce the image processing time to 1 minute. In the long run, specialized processors will be used to get the job done even faster. In addition, the developers plan to increase the scanning range to 10 km and reduce the size of the device.

<< Back: Robot in an anthill 11.04.2013

>> Forward: Chinese augmented reality glasses 10.04.2013

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

When brushing your teeth, it is important not to overdo it 03.02.2004

Brushing your teeth too long and too hard can be more harmful than helpful.

This was discovered by English dentists led by Peter Hisman. They gave twelve volunteers each an electric toothbrush connected to a computer. The brush recorded the duration of brushing and the force of pressure on the teeth. 16 different combinations of time and force were used: brushing 30, 60, 120 and 180 seconds at 75, 150, 225 or 300 grams of pressure.

It turned out that it is best to brush your teeth for two minutes with a brush pressure of 150 grams. With longer brushing, the teeth do not become cleaner (all impurities have already been removed), and with stronger pressure, the risk of damaging the gums and even tooth enamel increases.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews