Simeon Wahl

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Many state-of-the-art lossless image compression standards feature adaptive error modelling. This, however, leads to data dependency loops of the compression scheme such that a parallel compression of neighboring pixels is not possible. In this paper, we analyse the parallelism provided in JPEG-LS by the large number of different and independent context(More)
A parallel lossless image compression engine based on memory efficient tiling and context-based predictive coding is presented for high performance embedded systems. The engine compresses n pixels in parallel with n elementary processing units (EPUs). The low complexity of the JPEG-LS algorithm, combined with its competitive performance, is an advantage for(More)
The method particle image velocimetry (PIV) measures particle velocities in natural sciences and engineering based on the determination of the optical flow. Classical PIV requires capturing the particles twice with short delay and with very short exposure time which exceeds the frame rate and the shutter speed of typical imaging systems. Thus, the exposure(More)
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