Image processing - Photonik

4D-tomography with MHz-OCT: Optics goes big data
Bild: Optores

Image Processing

4D-tomography with MHz-OCT: Optics goes big data

Thanks to a new laser technology, OCT imaging speed can be increased by more than one order of magnitude. This enables real-time video-rate investigation of three-dimensional sample structure. mehr

Global shutter image sensors
Bild: CMOSIS

Image processing

Global shutter image sensors

Today, most CMOS image sensors use rolling shutter (RS) pixels. This can result in image artifacts when the camera or the subject is moving fast compared to the frame rate. To avoid this, global shutter (GS) pixels are required. However, typical GS based imagers underperform, compared to RS pixel of the same size, in the Dynamic Range (DR). Recent... von CMOSIS NV mehr

Design and development of a 28 Gb/s 850 nm Oxide VCSEL
Bild: Avago Technologies

Image processing

Design and development of a 28 Gb/s 850 nm Oxide VCSEL

In this technical article, we will present the progress of an 850 nm VCSEL which can meet the VCSEL requirements for 25Gbps to 28Gbps applications where the overall design approach focused not on the fastest possible VCSEL at room temperature, but rather on a reliable VCSEL with optimized performance over a 0°C to 85°C extended temperature range.... von Avago Technologies mehr

Image processing

High-resolution InGaAs-based imaging improves biomedical infrared OCT

Optical coherence tomography (OCT), a significant technique in the realm of spectroscopy, has been used in biomedical applications for about 20 years. It has evolved to a standard non-invasive examination procedure yielding detail-rich cross-sectional images of living tissue. With longer wavelengths in the IR spectrum and the availability of InGaAs... von Raf Vandersmissen, sInfraRed Pte Ltd, SingaporePatrick Merken, Xenics nv, Leuven, Belgium / RMA, Brussels, Belgium mehr

Image processing

Integrative open-source software enables image analysis in biological sciences

Todays biological scientists would struggle without advanced imaging and analysis techniques. Together with the highly-developed optics and measurement technologies often found in modern microscopy systems, these techniques provide hundreds of gigabytes of images and videos. In turn, there is an increasing requirement for complex analysis software... von Christian Dietz, Martin Horn, Heather Fyson, Michael R. Berthold, University of Konstanz, Germany mehr

Image processing

Real-time closed-loop control by high-speed image processing optimises laser welding

It is hard to imagine modern manufacturing without laser welding processes. These allow fast and flexible welding in vehicle body construction at points that cannot be easily accessed. Nevertheless, for the sake of quality assurance, the problem of real-time process control for optimised manufacturing methods has not been satisfactorily solved... von Andreas Blug, Fraunhofer IPM, Freiburg, GermanyFelix Abt, University of Stuttgart, GermanyLeonardo Nicolosi, Technical University of Dresden, Germany mehr

Image processing

Line scan cameras inspect internal O-ring groove surfaces

With a ?Scheimpflug Configuration?, three line scan cameras simultaneously inspect not only the horizontal floor and surrounding flanking areas, but also the vertical sides of an O-ring groove at high resolution, in spite of oblique angles. von Anja Krischke, Peter Gips, Ulrich Oechsner, Schäfter+Kirchhoff GmbH, Hamburg, Germany mehr

A new generation of high-end imagers

There are two worlds of imagers. There are the low-cost CMOS imagers in smartphones and digital cameras. And then there are the high-end imagers based on CCD and CMOS. These high-end specialty imagers are undergoing a major revolution regarding technological innovations, and market opportunities. We offer you a glimpse of market trends and associated... von Els Parton | Piet De Moor mehr

Image Processing

Fluorescent imaging of optogenetic pacemaker cells for the heart

Optogenetics uses light to stimulate genetically modified cells. Researchers at Stony Brook University plan to use these cells as optical cardiac pacemakers. A dedicated high-speed camera is being employed to monitor the work of the cells, providing relevant insight into the propagation patterns of the activation signal. von Bernd Müller, Freelance Journalist in Science and Technology, Bonn, Germany Gerhard Holst, PCO AG, Kelheim, Germany mehr

Image processing

Backside-illuminated CMOS image sensors deliver higher sensitivity

Backside-illuminated CMOS image sensors possess higher sensitivity in a broader spectrum than mainstream image sensors using frontside illumination. This article explores recent developments, which establish CMOS-sensors for high-end and specialty applications instead of CCD sensor technology. von Jan Provoost, Piet De Moor, imec, Leuven, Belgium mehr

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