Method of and apparatus for processing image data for display by a multiple-view display device
AssigneeSharp Kabushiki Kaisha
InventorsGraham Roger Jones, Benjamin James Hammett, Teofilo Emidio De Campos
Life of this patent
Estimating the term…
Abstract
A method is provided for processing image data for display by a multiple-view display device (24) so as to reduce the visibility of undesirable artefacts. Image pixel data are received (20, 21) representing the pixel brightnesses of respective images or sequences of images. The pixel data are processed (22) by applying a unidirectional filter. The processed pixel data for the images may then be interleaved (23) and supplied to the display device (24).
Claims41
A method of processing image data for display by a multiple-view display device, the method comprising:
- receiving a plurality of sets of image pixel data, where each set represents the pixel brightnesses of a respective image or sequence of images;
- and
- processing the sets of image pixel data by applying, to each pixel of each of at least one of the sets, a correction to compensate for the absence of at least one omitted adjacent pixel of the same set caused by the at least one of the sets having undergone image interleaving, wherein
- the correction processes a pixel in at least one of the sets by using (i) a first set of coefficient data derived from pixels surrounding said pixel in the at least one of the sets before interleaving has been performed and (ii) a second set of coefficient data derived from pixels surrounding said pixel other than the omitted adjacent pixel in the at least one of the sets after image interleaving has been performed, wherein
- in the first set, the correction process assigns a weighting factor to the adjacent pixels of said pixel which are to be omitted after image interleaving has been performed according to a Gaussian function of distance from said pixel.
A method as claimed in clam 1, in which the pixels represent grey levels of monochrome images.
A method of processing image data for display by a multiple-view display device, the method comprising:
- receiving a plurality of sets of image pixel data, where each set represents the pixel brightness of a respective image or sequence of images;
- and
- processing at least one of the plurality of sets of image pixel data by applying a unidirectional filter, wherein
- the unidirectional filter processes pixels only on one side of the processed pixel, and
- the unidirectional filter is always applied to the at least one of the plurality of sets of image pixel data regardless of the respective image or the sequence of images.
A method of processing image data for display by a multiple-view display device, the method comprising:
- receiving a plurality of sets of image pixel data, where each set represents the pixel brightnesses of a respective image or sequence of images;
- processing the sets of image pixel data by comparing, for each of a plurality of subsets of each of at least one of the sets where each subset includes at least four pixels and represents the brightnesses of a same number of pixel groups and each pixel group comprises at least one pixel, the brightness pattern of the pixel groups of the subset with a first predetermined pattern;
- wherein,
- when the pixel brightness pattern substantially matches the first predetermined pattern, applying a first filter to derive a first processed brightness of at least one of the pixel groups of the subset, and
- when the pixel brightness pattern does not substantially match the first predetermined pattern, applying a unidirectional filter to derive a first processed brightness of at least one of the pixel groups of the subset, the unidirectional filter processing pixels only on one side of the processed pixel.
Dependencies are inferred from the claim text.