Abstract: A system and method for content aware monitoring of an output of a media channel by a media system is provided herein. In at least one embodiment, the method comprises: receiving a media assertion schedule comprising a schedule of assertion checks which allow validating that the output of the media channel, by the media system, is synchronized with an expected media channel output; receiving, from a signature generating module, at least one observed signature file; determining that the timestamp data, in each of the at least one received observed signature file, aligns with at least one timecode included in an assertion check in the media assertion schedule; identifying an assertion condition included in the assertion check; and validating the assertion condition using the observed media frame signatures included in each of the at least one received observed signature file.

Abstract: A system and method for content aware monitoring of an output of a media channel by a media system is provided herein. In at least one embodiment, the method comprises: receiving a media assertion schedule comprising a schedule of assertion checks which allow validating that the output of the media channel, by the media system, is synchronized with an expected media channel output; receiving, from a signature generating module, at least one observed signature file; determining that the timestamp data, in each of the at least one received observed signature file, aligns with at least one timecode included in an assertion check in the media assertion schedule; identifying an assertion condition included in the assertion check; and validating the assertion condition using the observed media frame signatures included in each of the at least one received observed signature file.

Abstract: A system and method for content aware monitoring of an output of a media channel by a media system is provided herein. In at least one embodiment, the method comprises: receiving a media assertion schedule comprising a schedule of assertion checks which allow validating that the output of the media channel, by the media system, is synchronized with an expected media channel output; receiving, from a signature generating module, at least one observed signature file; determining that the timestamp data, in each of the at least one received observed signature file, aligns with at least one timecode included in an assertion check in the media assertion schedule; identifying an assertion condition included in the assertion check; and validating the assertion condition using the observed media frame signatures included in each of the at least one received observed signature file.

Abstract: A system and method for content aware monitoring of an output of a media channel by a media system is provided herein. In at least one embodiment, the method comprises: receiving a media assertion schedule comprising a schedule of assertion checks which allow validating that the output of the media channel, by the media system, is synchronized with an expected media channel output; receiving, from a signature generating module, at least one observed signature file; determining that the timestamp data, in each of the at least one received observed signature file, aligns with at least one timecode included in an assertion check in the media assertion schedule; identifying an assertion condition included in the assertion check; and validating the assertion condition using the observed media frame signatures included in each of the at least one received observed signature file.

Abstract: A method and apparatus detects the presence of a watermark in digital data. The digital data may represent picture or sound information and maybe in the form of a broadcast television signal or a signal that has been recorded on a recording medium such as a compact disc. The watermark includes coefficients which have been subject to an inverse local orthogonal transform before being embedded in the input data. In order to detect the presence of the watermark, the input watermarked data is first forward transformed and subtracted from the watermark coefficients so as to derive the data coefficients. The data coefficients are squared and formed into a local average to obtain a measure of the power in the local average. The watermark coefficients are divided by the local average so as to scale them and the scaled watermark coefficients are cross-correlated with the input data to detect whether the watermark is present.

Abstract: A motion factor coding apparatus receives an input video signal which is applied to a subtractor and to a motion estimator which generates motion vectors for the current frame relative to a reference frame that is stored in the motion estimator. The motion vectors are passed to a buffer which are then iteratively update in a re-estimator. The number of iterations can be set to a fixed number or can be controlled by measuring the effect of each successive update on the motion. When a satisfactory number of iterations is reached, update motion vectors are passed to a motion compensator which generates a predicted frame which is applied as another input to the subtractor where the predicted frame is subtracted from the current frame in the input digital video signal. The subtraction removes temporal redundancy in the signal.

Abstract: The present invention relates to converting a video signal comprising input image samples conforming to an interlace scanning lattice into a video signal comprising output image samples conforming to a progressive scanning lattice. First and second temporal filters receive and divide the input image samples into first and second temporal sub-bands. First and second low-pass vertical filters vertically filter each temporal sub-band such that the higher temporal sub-band is vertically filtered to a greater degree than the lower temporal sub-band. The filtered image samples from each sub-band are combined to form a filter output signal and a re-sampler re-samples the filter output signal to form the output image samples.

Abstract: This invention relates to improvements in selecting prediction parameters, particularly in relation to, but not exclusively to, selecting motion vectors in the compression of digital video signals.

Abstract: Video signals are subjected to a filtering process in which the signals are multiplied by a first variable gain coefficient and a delayed sample of the signals is derived by a delay circuit and the delayed sample is multiplied by a second variable gain coefficient. The two multiplied signals are added together. The magnitudes of the first and second gain coefficients are varied in dependence upon a comparison between the input video signal relative to the delayed sample from the delay circuit and in an opposite sense to one another. By a suitable choice of the gain coefficients, the filtering process can be used to preserve the sharpness of large transitions in picture information and the impulse response of the filter can be readily modified by re-calculating the gain coefficient. The filtering process may be used in a cascade of stages to achieve filtering in vertical, horizontal and temporal domains.