FIELD: image forming device.
SUBSTANCE: described herein are techniques related to noise reduction for image sequences or videos. Tool also includes a shot detector that is configured to detect a shot change within the sequence of input frames and to trigger the noise spectrum estimator in response to the detected shot change, a noise spectrum validator, and a noise reducer. A noise reduction tool includes a motion estimator configured to estimated motion in the video. Noise spectrum estimator configured to estimate noise in the video. Shot detector configured to trigger the noise estimation process. Noise spectrum validator configured to validate the estimated noise spectrum. Noise reducer to reduce noise in the video using the estimated noise spectrum.
EFFECT: reduced noise in video is provided.
33 cl, 5 dwg
