Inexpensive motion-blur tracking camera being obtained

The BlurBusters Lab is expanding!  Two new developments:

(1) A Casio Exilim EX-FC200 has been obtained, for high speed (480fps, 1000fps) capture of scanning/impulse/flashing backlight patterns of existing and future LCD displays.

(2) An open-source motion-blur tracking camera dolly is being developed for the BlurBusters Laboratory. Moving camera setups are used by the display industry to record motion blur, because camera-tracking blur equals eye-tracking blur. For more information, see page 43 of this excellent Nokia Japan presentation, and the “pursuit camera” mentioned in documents about Motion Picture Response Time (MPRT)

Stationary camera images are excellent for measuring pixel persistence effects, while tracking camera images are excellent for measuring eye-tracking motion blur. In fact, it also successfully captured the triple-frame effect seen by human eye (caused by CCFL backlight PWM flickering at 180 Hz, which causes a triple-frame effect at 60fps).

EDIT (March 12, 2013): Blur Busters Breakthrough: Inexpensive blogger-friendly pursuit camera technique successfully developed!; see LCD Motion Artifacts 101.

EDIT (July 15, 2013): Blur Busters News: Pursuit camera instructions are now public!  It uses the Ghosting pattern in the Blur Busters UFO Motion Tests at See the Pursuit Camera instructions.

About Chief Blur Buster

Chief Blur Buster
This entry was posted in Homebrew. Bookmark the permalink.

4 Responses to Inexpensive motion-blur tracking camera being obtained

  1. scanmaster says:

    Here’s a commercial moving-camera tracking system:
    This unit costs many thousands of dollars — probably well into the 5 figure range. The system I’m obtaining, is based on open-source parts, and will not be as accurate, but will be sufficient to produce useful measurement values.

  2. scanmaster says:

    Another method of MPRT measurements is to use a high-framerate camera (e.g. 1000fps), and use computer software to stack pixel-shifted frames on top of each other, to generate a composite motion-blur image. This would work, but the resolution of MPRT measurements would be limited to the framerate.

    e.g. 1000fps camera = allows MPRT measurements accurate to 1ms

    The good news is that this is a cheap to achieve; using a Casio Exilim EX-FC200 which can be imported from Japan for less than $400. Only the software needs to be written.

  3. scanmaster says:

    A very good Google Search for commercially motion blur measurement cameras:

    However, most of them are well beyond the budget of this blog. I have come up with a new blogger-friendly system that is much simpler than I expected; which I will be testing and discussing later during 2013!

  4. Blur Busters Breakthrough — blogger friendly pursuit camera technique has successfully been developed. I have published some photographs illustrating LCD motion blur:

Leave a Reply