摘要:
Functional data structure for coding a set of digital images which are divided into macroblocks ofpixels coded with colour value statements, including intraprediction macroblocks, wherein each of the images is compressed into at least-one first data stream portion, which comprises a portion of the macroblocks reduced by physical redundancies, and-one second data stream portion, which describes the redundancies, wherein for the intraprediction macroblocks-the first data stream portion is reduced by colour value statements with correlations to colour values from rows of pixels outside and at one edge of the intraprediction macroblock and for which, in the case of pixels outside the compressed image, a colour value default is assumed,-and the second data stream comprises intrapredictors for describing the correlations, with coding of an area which is divided into first areas, each of which is occupied by the macroblocks of one of the digital images, and a second area which spaces apart the first areas and is occupied by pixels with the colour value default.
摘要:
In a method and arrangement for processing a digitized picture with pixels, pixels of the picture are grouped into picture blocks. The picture is segmented into at least a first picture object and a second picture object, at least one picture block being assigned at least to a part of an edge of the first picture object. Information about the picture object is assigned to the at least one picture block.
摘要:
The invention relates to an improvement for a wafer mounting table particularly for use in photolithographic apparatus for processing wafers comprising a compact mounting block made of glass-ceramics which has two neighboring back supports limiting two sides of a top face of said mounting block. The top face is provided with at least three studs for supporting a wafer to be processed. The sides of the back-supports facing away from said top face are provided with an elongated horizontally extending silvered area each, which is in opposition to a laser path measuring system each. The laser beams of said laser path measuring system define a plane which coincides with a projection plane of a projection lens being provided in opposition to a wafer mounted on said studs. Means are provided for substantially eliminating departures of the silvered areas from a straight plane. Further means are provided which enable a quick adaption of the laser mount for wafer charges having different thicknesses or diameters.