Abstract: The skew angle of a document image is determined or estimated. The skew angle is determined or estimated by examining patterns found within a Fast Fourier Transform of a subset of the document image. This technique exploits the internal structure of the document designs to allow fast and accurate skew angle estimation, including for arbitrary document fragments.

Abstract: The skew angle of a document image is determined or estimated. The skew angle is determined or estimated by examining patterns found within a Fast Fourier Transform of a subset of the document image. This technique exploits the internal structure of the document designs to allow fast and accurate skew angle estimation, including for arbitrary document fragments.

Abstract: The present invention provides an FFT/IFFT processor for use with N data values. In one embodiment, the FFT/IFFT processor includes an even-odd data mapper configured to provide a mapping of the N data values into N/2 mapped complex data values if the N data values are real. Additionally, the FFT/IFFT processor also includes a separator-combiner, coupled to the even-odd data mapper, configured to compute either an FFT based on the mapping or an IFFT based on the N data values if the N data values are complex.

Abstract: A method and system for efficient buffer rendering. An object mask, typically a character font mask, is aligned with a memory tiling arrangement (1102). A tile map is generated (1104) to indicate active tiles. An active tile is selected (1106) and the portion of the buffer corresponding to the active tile is transferred (1108) from a first memory, typically an off-chip memory, to a second memory, typically an on-chip memory to allow a processor to render the band buffer tile. The portion of the band buffer is rendered (1110) and returned (1112) to the first memory. The next active tile is selected and the process continues until all active tiles have been rendered (1114).

Abstract: The specification discloses a roller conveyor having a plurality of elongated cylinders arranged to define a planar conveyor path. Each of the cylinders includes a low friction plastic bearing member rigidly mounted in the end thereof, with each of the bearing members including blind sockets formed in the centers. The cylinders are disposed between a pair of parallel side rails and a plurality of rigid metal shafts are connected along the interior sides of the rails. The ends of the shafts are received within the blind sockets in the bearing members such that the bearing members and cylinders rotate relative to the rigid metal shafts.

Abstract: The specification discloses a roller conveyor having a plurality of elongated cylinders arranged to define a planar conveyor path. Each of the cylinders includes a low friction plastic bearing member rigidly mounted in each end thereof, with each of the bearing members including blind sockets formed in the centers. The cylinders are disposed between a pair of parallel side rails and a plurality of rigid metal shafts are connected along the interior sides of the rails. The ends of the shafts are received within the blind sockets in the bearing members such that the bearing members and cylinders rotate relative to the rigid metal shafts.

Abstract: The specification discloses a roller conveyor having a plurality of elongated cylinders arranged to define a planar conveyor path. Each of the cylinders includes a low friction plastic bearing member rigidly mounted in the end thereof, with each of the bearing members including blind sockets formed in the centers. The cylinders are disposed between a pair of parallel side rails and a plurality of rigid metal shafts are connected along the interior sides of the rails. The ends of the shafts are received within the blind sockets in the bearing members such that the bearing members and cylinders rotate relative to the rigid metal shafts.