Abstract: A 3D video device (40,50) is provided for processing a three dimensional [3D] video signal for avoiding visual disturbances during displaying on a 3D display (63). The 3D video signal comprises a left view and a right view for generating a 3D effect. The invention involves recognizing and solving a so-called dirty window effect, i.e. the problem that correlation between noise in both views results in the 3D noise being perceived on a particular depth. The video processor (42,52,53) is arranged for processing the 3D video data in dependence of at least one amount of visual disturbances to be expected during displaying of the 3D video data due to correlation of coding noise between said views for reducing said correlation of coding noise. The device has transfer means (46,55) for transferring the processed 3D video data for displaying on the 3D display. Also a 3D video signal (41) and a record carrier are provided.

Abstract: In an encoder, an offset processor (307) generates picture elements with sub-pixel offsets for a picture element in a reference frame. A scan processor (309) searches a frame to find a matching picture element and a selection processor (311) selects the offset picture element resulting in the closest match. The first frame is encoded relative to the selected picture element, and displacement data comprising sub-pixel data indicative of the selected offset picture element and integer pixel displacement data indicating an integer pixel offset between the first picture element and the matching picture element is included the video data. A video decoder extracts the first picture element from a reference frame and generates an offset picture element in response to the sub-pixel information by interpolation in the reference frame. A predicted frame is decoded by shifting the offset frame in response to the integer pixel information.

Abstract: A method, filter and a video coder filtering a signal is described. The filter (92) comprises a first set of multipliers (102, 104, 106) filtering samples of the signal with a first phase of filter coefficients (C2, C4, C6), first summing units (108, 110) adding together the first filtered samples for forming a first sum signal, a second set of multipliers (114, 116, 118, 120) filtering the samples with a second phase of filter coefficients (C1, C3, C5, C7), second summing units (122, 124, 126) adding together the second filtered samples for forming a second sum signal and normalizers (112, 128) dividing the first sum signal with the sum of the first phase coefficients and the second sum signal with the sum of the second phase coefficients for providing first and second output signals. This allows optimisation of the coefficients without making the sums of the coefficient sets equal.

Abstract: A method and apparatus for providing spatial scalable compression of an input video stream is disclosed. A base stream is encoded which comprises base features. A residual signal is encoded to produce an enhancement stream comprising enhancement features, wherein the residual signal is the difference between original frames of the input video stream an upscaled frames from the base layer. A processed version of the base features are subtracted from the enhancement features in the enhancement stream.

Abstract: A method and apparatus for providing spatial scalable compression of a video stream is disclosed. The video stream is downsampled to reduce the resolution of the video stream. The downsampled video stream is encoded to produce a base stream. The base stream is decoded and upconverted to produce a reconstructed video stream. The reconstructed video stream is subtracted from the video stream to produce a residual stream. It is then determined which segments or pixels in each frame have a predetermined chance of having a predetermined characteristic. A gain value for the content of each segment or pixel is calculated, wherein the gain for pixels which have the predetermined chance of having the predetermined characteristic is biased toward 1 and the gain for other pixels is biased toward 0. The residual stream is multiplied by the gain values so as to remove bits from the residual stream which do not correspond to the predetermined characteristic.

Abstract: Video signals are converted into a stream of digital numbers arranged in a sequence of digitized video frames (14), neighboring frames being separated by a synchronization signal (16). A sensing circuitry (30) monitors the synchronization signals and detects absent synchronization signals. A clock generator (32) generates a replacement synchronization signal based on the monitored synchronization signals. The replacement signals can replace all of the synchronization signals, e.g., with an average sync frequency, or replace only missing or corrupted synchronization signals. The replacement synchronization signals are generated and inserted either at a fixed rate or at an actual clock rate. In a preferred embodiment, a learning circuitry (42) collects and averages the clock rate of the synchronization signals for a preselected duration. The value is supplied to the clock generator to output the replacement synchronization signals at the actual clock rate.