Reconfigurable computing: a survey of systems and software
ACM Computing Surveys (CSUR)
Configurable Systems-on-Chip (CSoC)
Proceedings of the 15th symposium on Integrated circuits and systems design
IV '04 Proceedings of the Information Visualisation, Eighth International Conference
A video segmentation algorithm for hierarchical object representations and its implementation
IEEE Transactions on Circuits and Systems for Video Technology
Proceedings of the conference on Design, automation and test in Europe
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Visual information processing will play an increasingly important role in future electronics systems. In many applications, e.g. video surveillance cameras, data throughput of microprocessors is not sufficient and power consumption is too high. Instruction profiling on a typical test algorithm has shown that pixel address calculations are the dominant operations to be optimized. Therefore AddressLib, a structured scheme for pixel addressing was developed, that can be accelerated by AddressEngine, a coprocessor for visual information processing. In this paper, the architectural design of AddressEngine is described, which in the first step supports a subset of the AddressLib. Dataflow and memory organization are optimized during architectural design. AddressEngine was implemented in a FPGA and was tested with MPEG-7 Global Motion Estimation algorithm. Results on processing speed and circuit complexity are given and compared to a pure software implementation. The next step will be the support for the full AddressLib, including segment addressing. An outlook on further investigations on dynamic reconfiguration capabilities is given.