Patent ID: 8184208

Claim:
A method for processing video data, the video data including a plurality of fields, the method comprising: dividing each of the plurality of fields into a plurality of image blocks; examining each image block of a target field to determine whether each image block of the target field corresponds to a film mode or a non-film mode, wherein the target field is one of the plurality of fields; examining each image block of the target field that corresponds to the film mode to determine whether each image block corresponds to a pure film mode or a mix film mode; and utilizing a specific image processing mechanism to process each of the plurality of image blocks, and the step of using the specific image processing mechanism to process each of the image blocks comprises: utilizing a pure film mode image processing mechanism to process a specific image block when the specific image block of the target field corresponds to the pure film mode; utilizing a mix film mode image processing mechanism to process a specific image block when the specific image block of the target field corresponds to the mix film mode; and utilizing a non-film mode image processing mechanism to process a specific image block when the specific image block of the target field corresponds to the non-film mode; wherein the step of examining each image block of the target field that corresponds to the film mode to determine whether each image block corresponds to a pure film mode or a mix film mode is implemented by executing a sawtooth detection; if the image block includes sawtooth, the image block is determined to be corresponding to the mix film mode; and if the image block does not include the sawtooth, the image block is determined to be corresponding to the pure film mode.