Rainbow Pattern Blur

What Causes this Effect?

Rainbow pattern blur occurs under the following conditions:

  • An object in the scene moves during 2D image capture.

  • The camera moves relative to the scene during 2D image capture.

../_images/rainbow-pattern-motion-blur.png

Is it a Problem or a Feature?

Is addressing rainbow blur necessary? Zivid cameras are primarily used for capturing stationary scenes, where minimizing motion is typically desirable. As such, this phenomenon can act as a useful indicator of motion within the scene. Rainbow blur in the color image may point to issues such as a non-rigid camera setup or vibrations present in the environment.

Mitigation Strategies

To minimize or eliminate rainbow blur:

  • Ensure objects remain stationary within the scene during capture.

  • Reduce the exposure time and compensate by adjusting the aperture, gain, or projector brightness settings.

  • Use grayscale image for 2D captures. Grayscale image capture is faster than color image capture and avoids the rainbow motion blur effect entirely.