| 摘要 |
An encoded video signal is decoded to obtain a decoded video signal, wherein the decoded video signal includes a previous and a current frames and is processed an a macroblock-by-macroblock basis, each frame's data containing pixel values, by deriving a set of quantized discrete cosine transform coefficients corresponding to current frame data and converting the set of quantized discrete cosine transform coefficients into a set of discrete cosine transform coefficients. Thereafter, depending on the complexity of the current frame data detected, high frequency components of the set of discrete cosine transform coefficients within a preset region are filtered based on the set of discrete cosine transform coefficients and the complexity of the current frame data, to thereby produce a set of filtered discrete cosine transform coefficients. The set of filtered discrete cosine transform coefficients is transformed into a set of inverse discrete cosine transform data, and the current frame data is generated through the use of motion compensation and provided as the decoded video signal. |
