Noise Cancellation Device for an Image Signal Processing System
First Claim
1. A noise cancellation device for an image signal processing system comprising:
- a receiving end for receiving an image signal;
a 3D (three-dimensional) filtering unit for adjusting a filtering parameter according to a motion estimation value, and filtering the image signal and a former filtering result for generating a current filtering result;
an motion detection unit for comparing the former filtering result and the image signal received by the receiving end, so as to generate a current motion factor and the motion estimation value according to a former motion factor;
an memory unit for receiving and storing the current filtering result outputted from the 3D filtering unit and the current motion factor outputted from the motion detection unit as the former filtering result and the former motion factor; and
an output end for outputting the current filtering result provided by the 3D filtering unit.
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Abstract
A noise cancellation device for an image signal processing system includes a receiving end for receiving image signals, a 3D filtering unit for adjusting a filtering parameter according to a motion estimation value, and filtering the image signals and a former filtering result for generating a current filtering result, a motion detection unit for comparing the former filtering result and the image signals, so as to generate a current motion factor and the motion estimation value according to a former motion factor, a memory unit for receiving and storing the current filter result and the current motion factor as the former filtering result and the former motion factor, and an output end for outputting the current filtering result provided by the 3D filtering unit.
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Citations
19 Claims
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1. A noise cancellation device for an image signal processing system comprising:
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a receiving end for receiving an image signal; a 3D (three-dimensional) filtering unit for adjusting a filtering parameter according to a motion estimation value, and filtering the image signal and a former filtering result for generating a current filtering result; an motion detection unit for comparing the former filtering result and the image signal received by the receiving end, so as to generate a current motion factor and the motion estimation value according to a former motion factor; an memory unit for receiving and storing the current filtering result outputted from the 3D filtering unit and the current motion factor outputted from the motion detection unit as the former filtering result and the former motion factor; and an output end for outputting the current filtering result provided by the 3D filtering unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification