Abstract: A video apparatus is provided with automatic deinterlacing and inverse telecine pre-filtering capability to automatically analyze the frames of the video to determine at least whether the video is one of telecine, non-telecine progressive and non-telecine interlaced formatted, and to automatically reformat the video into a non-telecine progressive format if the video is determined to be one of telecine and non-telecine interlaced formatted.

Abstract: The present invention is directed to systems and methods for video compression. In one embodiment, a method of encoding a matrix of transform coefficients is performed. The method includes receiving a matrix of transform coefficients, creating a probabilistic model representing dependencies and correlations between coefficient locations and groups of coefficients from said matrix, and utilizing the probabilistic model to create an entropy encoding of the matrix. The probabilistic model my be, by way of example, a Markov model.

Abstract: The present invention is generally directed to automated methods and systems for converting image streams having a first frame rate to a second frame rate without the need for user intervention. Embodiments of the present invention obviate the effects of processing of a telecine process. In one embodiment, where frames are encoded by a single video field, a statistical analysis of the differences between adjacent frames reveals a telecine pattern, thereby identifying which frames to remove. In another embodiment, where frames are encoded by even and odd video fields, which are interleaved to produce the frame, a statistical analysis of the differences between adjacent fields reveals the telecine pattern, identifies which frames to remove, and identifies frames that are candidates for re-interleaving.