Showing posts with label imaging. Show all posts

2009-04-30

World's Fastest Camera

Clipped from: BBC NEWS | Science & Environment | Debut for world's fastest camera

Debut for world's fastest camera

The fastest imaging system ever devised has been demonstrated by researchers reporting in the journal Nature.
Their camera's "shutter speed" is just a half a billionth of a second, and it can capture over six million images in a second continuously.
Its "flashbulb" is a fast laser pulse dispersed in space and then stretched in time and detected electronically.

The technique hinges on an ordered spreading of the colours in laser light

Clipped from: Fastest Camera Ever Built Uses Lasers | Wired Science

Fastest Camera Ever Built Uses Lasers

Scientists have made the fastest camera ever. It can take 6.1 million pictures in a single second, at a shutter speed of 440 trillionths of a second. Light itself moves just a fraction of a centimeter in that time.
The camera works by illuminating objects with a laser that emits a different infrared frequency for every single pixel, allowing them to custom-amplify a signal that would otherwise be too dim to see.

Clipped from: YouTube - World's Fastest Camera

Clipped from: World's fastest camera : Nature News

Speedy snapshots captured using laser light.

The new camera can take snaps every 163 nanoseconds.

The team captured pictures of tiny beads moving through microfluidic channels.

Clipped from: Keisuke Goda @ UCLA

Welcome to Keisuke Goda @ UCLA

Keisuke Goda is currently a postdoctoral fellow in the Optoelectronic Circuits and Systems Laboratory led by Prof. Bahram Jalali in the Department of Electrical Engineering at University of California, Los Angeles. His research interests lie in the fields of optoelectronics, biomedical optics, and silicon photonics for biomedical and defense applications. For more information about his ongoing research projects, go to the Research page.

STEAM - the world's fastest camera demonstrated

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2009-04-22

Ultrasound Imaging with a Smartphone

Clipped from: Ultrasound imaging now possible with a smartphone

Ultrasound imaging now possible with a smartphone
Imaging device fits in the palm of a hand

William D. Richard (left) takes an ultrasound probe of colleague David Zar's carotid artery with a low-power imaging device he designed.

Computer engineers at Washington University in St. Louis are bringing the minimalist approach to medical care and computing by coupling USB-based ultrasound probe technology with a smartphone, enabling a compact, mobile computational platform and a medical imaging device that fits in the palm of a hand.

The image of Zar's carotid artery appears on this small, portable smartphone connected to the probe by a USB driver.

"You can carry around a probe and cell phone and image on the fly now," said Richard. "Imagine having these smartphones in ambulances and emergency rooms. On a larger scale, this kind of cell phone is a complete computer that runs Windows. It could become the essential computer of the Developing World, where trained medical personnel are scarce, but most of the population, as much as 90 percent, have access to a cell phone tower."

The electronics for the ultraprobe have shrunk over 25 years from cabinet-sized to a tiny circuit board one inch by three inches (left). WUSTL's William D. Richard and Dave Zar have wedded a small, portable ultra sound imaging device with a smartphone (right).

Clipped from: YouTube - CellPhoneUltrasound Demo

CellPhoneUltrasound Demo

Clipped from: Cell Phone SDK - Ultrasound

Cell Phone SDK

The World's First Ultrasound Machine Based on a Cell Phone

Working under a Microsoft Research grant, Cell Phone as a Platform for Healthcare, we modified commercially available USB ultrasound probes to work with a smart phone and developed the SDK presented, here.

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William D. Richard, Ph.D.

David M Zar - Department of Computer Science & Engineering - Washington University

2008-12-12

Mind Reading Software

clipped from www.cns.atr.jp

clipped from www.medgadget.com

fMRI Extracts Images From The Brain

Researchers from ATR Computational Neuroscience Laboratories in Japan used a functional MRI machine on the brain to read the letters and symbols that the eyes of a subject were seeing.

clipped from www.telegraph.co.uk

Scientists develop software that can map dreams

clipped from www.newscientist.com

'Mind-reading' software could record your dreams

Brain scanning can now extract information directly from the brain: the subject read the word "neuron" at the top, and software working with the brain scan images reconstructed the word (below) (Image: Neuron/Cell Press)

clipped from www.cns.atr.jp

Cognitive
Modules in the Cerebellum

Forward
Thinking, MOSAIC Model and Mirror Neurons

Motor
Control and Learning

Vision
Dynamics

Decoding Neural Signals

Associate Professor

Yukiyasu Kamitani

We develop the decoding techniques reading the states of mind by non-invasive brain imaging, fMRI or MEG. Especially, we aim to reveal subjective perceptual and cognitive contents.

LinkNotes

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