Abstract: A method for motion estimation and for motion compensated interpolation. By taking a source of video data into account, a size of update vectors to be employed for determining spatial prediction vectors is set in accordance with a detected source mode. By selecting an appropriate update vector size, accuracy of predicted motion and consequently, a picture quality of motion compensated interpolated images can be increased considerably.

Abstract: The present invention relates to an improved interpolation based on motion compensation. In order to avoid interpolation artifacts in proximity to the image borders, in particular in letterbox type images, each motion compensated image data is subjected to a position validation in order to determine whether or not the motion compensated image data can be used for interpolation purposes. By comparing the position of the motion compensated image data in the referenced images with predefined borderlines, impermissible image data positions can be detected and interpolation based on such image data prevented.

Abstract: The present invention relates to a correction of image status information assigned on a local basis to a video image. Upon evaluating a predefined image portion comprising a plurality of image elements, incorrect determinations are detected and eliminated.

Abstract: The present invention relates to a correction of image status information assigned on a local basis to a video image. Upon evaluating a predefined image portion comprising a plurality of image elements, incorrect determinations are detected and eliminated.

Abstract: The present invention enables to improve film mode determinations in particular for border areas of moving objects. This is achieved by a film mode extrapolation. The direction of a motion vector of a current block is reversed and the film mode indication of the target block determined based on the reversed motion vector is extrapolated towards the current block. In this manner, the accuracy of film mode determination for the current image can be improved and image processing yielding improved picture quality can be improved accordingly.

Abstract: The present invention provides an improved method for motion estimation and in particular for a motion compensated interpolation. By taking the source of the video data into account, the size of update vectors to be employed for determining spatial prediction vectors is set in accordance with the detected source mode. By selecting an appropriate updata vector size, the accuracy of the predicted motion and consequently, the picture quality of motion compensated interpolated images can be increased considerably.

Abstract: A method and a device for generating synchronization signals according to a predefined output timing standard and based on received synchronization signals is provided. Deviations of the timing of the received synchronization signals from a predefined input timing standard are detected, and the timing of the generated synchronization signals is adjusted based on the detected deviations.

Abstract: The present invention relates to an improved interpolation based on motion compensation. In order to avoid interpolation artefacts in proximity to the image borders, in particular in letterbox type images, each motion compensated image data is subjected to a position validation in order to determine whether or not the motion compensated image data can be used for interpolation purposes. By comparing the position of the motion compensated image data in the referenced images with predefined borderlines, impermissible image data positions can be detected and interpolation based on such image data prevented.