TECHNOLOGY

Noise Reduction

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Description

  • Image noise is interference in the video signal that shows up as grainy specks. As light level decreases, AGC (Automatic Gain Control) value of the image sensor increases to compensate the brightness levels and that is major cause of image noise.
  • Noise Reduction(NR) is a technique of removing image noise from a video signal with 2D and 3D NR filter.
  • 2D NR filter performs edge-preserving filter operation by considering the noise level of each pixel. 3D NR filter performs adaptive noise filtering by estimating the noise level of the current and previous input image. 3D filter automatically adjusts filtering intensity based on frame clearness level. 3D NR filter can effectively reduce noise in the image with suppressed ghost-tail artifacts using noise level adaptive motion detector and auto intensity adjustment.

Demo Image

  • 2D/3D NR Off

  • 2D/3D NR On

Demo Video