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LaVision FRAME Imaging Technology: Fastest camera in the world

 

Forget high-speed cameras capturing 100 000 images per second. A research group at Lund University in Sweden has developed a camera that can film at a rate equivalent to five trillion images per second, or events as short as 0.2 trillionths of a second. This is faster than has previously been possible.

Lund University has developed a high-speed camera featuring 5 trillion frames per second using the LaVision FRAME imaging technology.

The novel FRAME (Frequency Recognition Algorithm for Multiple Exposures) approach opens up new possibilities in ultra-fast imaging at reduced costs. The technique permits a conventional camera to store several images simultaneously in a single exposure on its sensor. The resulting multiply exposed image is processed by the FRAME algorithm which reconstructs the original individual images.

3398 17 FRAME Imaging Technology

The FRAME imaging technology offers the unique ability to acquire and store multiple exposures in one frame of a standard camera sensor. This new Frequency Recognition Algorithm for Multiple Exposures (FRAME) imaging concept uses an image-coding strategy, where different exposures are given a unique structural code allowing multiple on-chip exposures before readout. At the end of such a superimposed recording each image is unlocked by its unique structural code. This on-chip recording of structural coded images opens up a variety of new measurement schemes such as

  • ultra-high-speed imaging
  • instantaneous 3-dimensional imaging
  • simultaneous, multispectral imaging

Ultra-high-speed imaging
Together with researchers from Lund University LaVision has developed a FRAMEimaging setup for high speed shadow imaging. The FRAME illumination unit consists of 4 pulsed LEDs firing a sequence of 4 structural coded illuminations at a frequency of up to 1 MHz. A standard still camera captures on-chip all 4 exposures. After readout a post-processing procedure decodes the multi-exposure recording into the 4 time-separated snapshots.

  • 4 images at 1 MHz frame rate using standard high resolution camera
  • FRAME illumination unit for structural light exposure
  • cost effective alternative to expensive high-speed cameras

3399 19 setup with spray

High-speed spray images reconstructed from one FRAME recording

The temporal resolution and frame rate of FRAME imaging are determined by the light source. Using e. g. femtosecond lasers in combination with a FRAME projector will permit video imaging at several trillion frames/s – using a single standard high resolution camera!

 3400 19 Spraysequenz FRAME

Instantaneous 3-dimensional imaging
Coded light sheets at different spatial locations are used in combination with FRAME imaging technology for 3D laser imaging of e. g. 3D concentration fields of LIF species in flames.

Simultaneous, multispectral imaging

Performing multispectral imaging with FRAME allows the simultaneous recording of images with different wavelength information. For example, species-specific LIF processes in biological samples can be recorded parallel in time for higher throughput screening. 

3402 19 Multispectral imaging

Download detailed pdf datasheet here.

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