The University of Surrey Department of Computing's Watermarking and Multimedia Security research group receives a boost to its work this month with a visit from Professor Yun Qing Shi of the Department of Electrical and Computer Engineering, New Jersey Institute of Technology. The visit is being sponsored by the Royal Society, and will help enhance the awareness of digital watermarking research in the UK.
Professor Shi will be visiting the Department from 30 July through to 19 August. During his visit, he will provide three tutorials on 'Fragile and Semi-fragile Reversible Data Hiding', 'Steganography and Steganalysis', and 'Digital Forensics', each key areas in multimedia security that the Watermarking and Multimedia Security group at Surrey are actively engaged in researching.
Professor Shi is a leading researcher in the field of multimedia security, contributing in the region of 200 authored and co-authored papers in top ranking conferences and journals, 18 patents and 1 book. He is also a Fellow of the Institute of Electrical and Electronics Engineers (IEEE).
The Watermarking and Multimedia Security group was established early in 2006, combining expertise from coding theory and cryptography, formal methods, and image processing and data hiding. Led by Professor Anthony T S Ho, the group is currently investigating binary, halftone and video watermarking, and error control coding. Professor Ho won the IET Engineering in Innovation Award 2006 for Security, for research and commercialisation of digital watermarking, with DataMark Technologies.
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At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.
Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
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Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
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