By Joachim Keinert
Design of photograph Processing Embedded platforms utilizing Multidimensional info stream Joachim Keinert Jürgen Teich This ebook offers a brand new set of embedded method layout options in keeping with multidimensional information move, which mix a few of the advantages provided by means of latest methodologies similar to block-based procedure layout, high-level simulation, procedure research and polyhedral optimization. It describes a unique structure for effective and versatile high-speed verbal exchange in that may be used either in handbook and automated process layout and that gives a variety of layout choices, balancing plausible throughput with required dimension. This e-book demonstrates multidimensional facts move through exhibiting its capability for modeling, research, and synthesis of complicated snapshot processing purposes. those purposes are offered by way of their basic houses and ensuing layout constraints. assurance contains a dialogue of the way some distance the latter will be met greater by way of multidimensional facts circulation than substitute techniques. in line with those effects, the e-book explains the rules of fine-grained procedure point research and high-speed verbal exchange synthesis. also, an in depth overview of comparable options is given for you to express their relation to multidimensional information circulation. •First ebook on multidimensional information circulation, together with a number of varied versions of computation and ensuing research and synthesis demanding situations and advantages; •Presents modeling, procedure research and synthesis, utilizing multidimensional info circulate, in addition to a close dialogue of comparable ways to illustrate what matches designers’ wishes top; •Describes how multidimensional facts movement can coexist with classical, one-dimensional versions of computation; •Applies multidimensional information movement to numerous picture processing examples, similar to JPEG2000 encoding, movement JPEG interpreting, binary morphological reconstruction and multi-resolution filtering.
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Additional info for Design of Image Processing Embedded Systems Using Multidimensional Data Flow
Entropy encoding is a typical example because the amount of produced output data strongly depend on the input pixel values. Static algorithms, on the other hand, transform the input image in a predefined manner. In other words, the operations to execute can be predicted beforehand and do not depend on the actual pixel values. The distinction between these two algorithm classes is important because of their different characteristics. Dynamic algorithms, for instance, typically do not allow prediction of run-time or required buffer memory.
Whereas point algorithms are often trivial to implement and only require modest hardware resources, local algorithms are already more challenging because of increased memory requirements and a typically higher computational work load. Global algorithms finally are often less regular and more difficult to parallelize, which makes them particularly adapted for execution on general-purpose or embedded processors. 2 JPEG2000 Image Compression 11 In order to clarify these concepts, the next section considers a concrete application in form of a JPEG2000 encoder.
This comprises generation of the hardware accelerators, instantiation of the micro-processors and the corresponding software, and communication synthesis. In this book, particular focus has been put on the automatic derivation of high-speed hardware primitives for multidimensional communication. Although they provide a FIFO-like interface for easy system integration, they significantly outperform classical FIFOs by • permitting parallel access to several data elements on both the read and write side, • allowing for one read and write operation per clock cycle while supporting very high clock frequencies, • being able to exploit tradeoffs between achievable throughput and required hardware resources, and • handling different read and write orders as, for instance, occurring in JPEG2000 tiling or block building.
Design of Image Processing Embedded Systems Using Multidimensional Data Flow by Joachim Keinert