1 Overview In this paper, a new method for drawing straight lines suitable for use on raster scan displays and plotters is presented. Unlike previous methods which are based on DDA or midpoint algorithms, this technique is based on signal processing concepts related to resampling, multirate processing and sample rate conversion generally, and decimation in particular. An algorithm based on spat...

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If the SRC is performed between arbitrary sampling rates, then the SRC factor can be a ratio of two very large integers or even an irrational number. An efficient way to reduce the implementation complexity of a SRC system in those cases is to use polynomial-based interpolation filters with the impulse response ha(t) having the following properties. ha(t) is nonzero for an interval 0 ≤ t < NT w...

Frame rate up-conversion is a post processing tool to convert the frame rate from a lower number to a higher one. This paper presents a motion compensated frame rate up-conversion algorithm that uses the expanded range of the adaptive bilateral motion estimation to enhance the accuracy of motion vectors. In experiments using benchmark test sequences, the proposed algorithm improves the average ...

OBJECTIVE To quantify the proportion of requests for colonoscopy that are performed as flexible sigmoidoscopy and documented reasons for this in ordinary UK hospital practice. To determine the effect these requests have on colonoscopy completion rate if they are included in the denominator of the calculated rate by individual endoscopist. DESIGN Retrospective study of 22 months flexible sigmo...