| 摘要 |
A device and a method of estimating noise of an image signal, and an apparatus and a method of converting an image signal using the same are provided. The apparatus for converting the image signal includes a noise estimation device determining a noise level by using the minimum frame sum of absolute difference (SAD) detected from a plurality of input image fields; an interpolation filter interpolating the input image fields; and an interpolation filter control unit generating a filter coefficient control signal of the interpolation filter by using the noise level obtained by the noise estimation device. Accordingly, it is possible to effectively and accurately estimate noise of a frame based image field by providing the method of estimating the noise using the minimum frame SAD. |
