new digital high speed camera

[andiwm2003]

well, 1000 times shorter exposure times will change photography for sure. but it's still in early development. will take some time to trickle down to consumer level cameras....................


Nature Magazine:

Serial time-encoded amplified imaging for real-time
observation of fast dynamic phenomena
K. Goda1*, K. K. Tsia1* & B. Jalali1*
Ultrafast real-time optical imaging is an indispensable tool for
studying dynamical events such as shock waves1,2, chemical
dynamics in living cells3,4, neural activity5,6, laser surgery7–9 and
microfluidics10,11. However, conventional CCDs (charge-coupled
devices) and their complementary metal–oxide–semiconductor
(CMOS) counterparts are incapable of capturing fast dynamical
processes with high sensitivity and resolution. This is due in part
to a technological limitation—it takes time to read out the data
from sensor arrays. Also, there is the fundamental compromise
between sensitivity and frame rate; at high frame rates, fewer
photons are collected during each frame—a problem that affects
nearly all optical imaging systems. Here we report an imaging
method that overcomes these limitations and offers frame rates
that are at least 1,000 times faster than those of conventional
CCDs. Our technique maps a two-dimensional (2D) image into
a serial time-domain data stream and simultaneously amplifies the
image in the optical domain. We capture an entire 2D image using
a single-pixel photodetector and achieve a net image amplification
of 25 dB (a factor of 316). This overcomes the compromise between
sensitivity and frame rate without resorting to cooling and highintensity
illumination. As a proof of concept, we perform continuous
real-time imaging at a frame speed of 163 ns (a frame rate of
6.1 MHz) and a shutter speed of 440 ps. We also demonstrate realtime
imaging of microfluidic flow and phase-explosion effects that
occur during laser ablation.

 

[iJohnHenry]

That is near impossible to read.

Nature Magazine:

Serial time-encoded amplified imaging for real-time observation of fast dynamic phenomena K. Goda1*, K. K. Tsia1* & B. Jalali1*

Ultrafast real-time optical imaging is an indispensable tool for studying dynamical events such as shock waves1,2, chemical dynamics in living cells3,4, neural activity5,6, laser surgery7–9 and microfluidics10,11. However, conventional CCDs (charge-coupled devices) and their complementary metal–oxide–semiconductor (CMOS) counterparts are incapable of capturing fast dynamical processes with high sensitivity and resolution.

This is due in part to a technological limitation—it takes time to read out the data from sensor arrays. Also, there is the fundamental compromise between sensitivity and frame rate; at high frame rates, fewer photons are collected during each frame—a problem that affects nearly all optical imaging systems.

Here we report an imaging method that overcomes these limitations and offers frame rates that are at least 1,000 times faster than those of conventional CCDs. Our technique maps a two-dimensional (2D) image into a serial time-domain data stream and simultaneously amplifies the image in the optical domain.

We capture an entire 2D image using a single-pixel photodetector and achieve a net image amplification of 25 dB (a factor of 316). This overcomes the compromise between sensitivity and frame rate without resorting to cooling and high intensity illumination.

As a proof of concept, we perform continuous real-time imaging at a frame speed of 163 ns (a frame rate of 6.1 MHz) and a shutter speed of 440 ps. We also demonstrate realtime imaging of microfluidic flow and phase-explosion effects that occur during laser ablation.

 

[macryder]

Could you show as a sample image of that camera or a link to other site? I think in this section alone, you must provide a link for that in this section of the forum only. Thanks!

 

[t0mat0]

Doing things one at a time, not in parallel, they're doing images to help look at things that change and happen fast e.g. a shock wave, activity in the brain, living cells.

CCDs and CMOSs aren't normally able to capture fast events with a decent reolution and sensitivity (i.e.able to take pictures in low level of light = more sensitive - quicker the image, less light is captured for it)

The bit that's the hard to comprehend is the

New technique

"maps a two-dimensional (2D) image into
a serial time-domain data stream and simultaneously amplifies the
image in the optical domain. "

By using a a single-pixel photodetector they can get an entire 2D image with decent sensitivity. They showed they could do continuous
real-time imaging at a frame speed of 6,000,000 or so frames a second.

(163 ns (a frame rate of 6.1 MHz) and a shutter speed of 440 ps. )

Will try and have a look

For those looking - there are some decent v. high number of frames per second pro and normal consumer level digital cameras out - maybe not image cells or shockwaves, but definitely do slow-mos of things (search gizmodo slow-mo or similar - can't find link at moment)