During her doctoral research in the Netherlands, Gemma Piella developed a new method for processing images. With this method more details are visible at a lower resolution than the original image: both the wood and the individual trees are distinct. Piella also combined various images of the same object to produce a detailed complete picture.
Mathematician Gemma Piella has developed a new technique for processing images. For this she used a mathematical operation that makes use of so-called wavelets. Just like a sinus, the upward and downward deviation of each of these small waves is the same. However, the wavelets only exist over a short distance and all of the peaks and troughs have different heights and widths. These characteristics ensure that a single operation can simultaneously render both large and small objects visible. This enables you to see both the entire wood and the individual trees at the same time.
A scene can only be fully understood if it can be seen at many different levels. For example, if you see a wood from a distance, your first impression is just a green surface. If you come closer by, you can see the trees. If you zoom in even further still, you can even see the leaves and the bark. Therefore, which information you extract from the picture depends upon the level at which you see it. So-called multiresolution techniques such as those used by Piella, render all details, at every level in the image visible at the same time.
Lydie van der Meer | NWO
Stanford researchers create new special-purpose computer that may someday save us billions
21.10.2016 | Stanford University
New 3-D wiring technique brings scalable quantum computers closer to reality
19.10.2016 | University of Waterloo
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
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21.10.2016 | Materials Sciences