Abstract: There is disclosed a system for transmitting digital data with error detection, the system comprising a sender, configured to receive source data and to send transfer data, and a receiver configured to receive the transfer data and to output result data, wherein the sender is further configured to receive the source data, to numerically multiply the source data by an integer number greater than 2, and to output the multiplied source data as the transfer data, and wherein the receiver is further configured to receive the transfer data, to check if dividing the transfer data by the integer number results in an integer result, and, if the checking fails, to output an error indication, and, if the checking succeeds, to output the transfer data divided by the integer number as the result data. Also, a corresponding method is disclosed.

Abstract: An improved algorithm for edge detection is provided that utilizes the second order derivative of the intensity distribution function of an image to provide edge orientation information for the detected edges. An exemplary embodiment of the improved algorithm includes determining the second order derivative of the intensity distribution function, identifying zero-crossings in the horizontal and vertical directions, assigning angle information to the identified zero-crossings in the horizontal and vertical directions; and identifying an edge orientation based the assigned angle information for the horizontal and vertical zero-crossing of the edge and adjacent edges.

Abstract: A pipelined video pre-processor includes a plurality of configurable image-processing modules. The modules may be configured using direct processor control, DMA access, or both. A block-control list, accessible via DMA, facilitates configuration of the modules in a manner similar to direct processor control. Parameters in the modules may be updated on a frame-by-frame basis.

Abstract: An improved algorithm for edge detection is provided that utilizes the second order derivative of the intensity distribution function of an image to provide edge orientation information for the detected edges. An exemplary embodiment of the improved algorithm includes determining the second order derivative of the intensity distribution function, identifying zero-crossings in the horizontal and vertical directions, assigning angle information to the identified zero-crossings in the horizontal and vertical directions; and identifying an edge orientation based the assigned angle information for the horizontal and vertical zero-crossing of the edge and adjacent edges.