@conference {19284,
	title = {Automated generation of an efficient MPEG-4 Reconfigurable Video Coding decoder implementation},
	booktitle = {2010 Conference on Design and Architectures for Signal and Image Processing (DASIP)},
	year = {2010},
	month = {2010},
	pages = {265 - 272},
	abstract = {This paper proposes an automatic design flow from user-friendly design to efficient implementation of video processing systems. This design flow starts with the use of coarse-grain dataflow representations based on the CAL language, which is a complete language for dataflow programming of embedded systems. Our approach integrates previously developed techniques for detecting synchronous dataflow (SDF) regions within larger CAL networks, and exploiting the static structure of such regions using analysis tools in The Dataflow interchange format Package (TDP). Using a new XML format that we have developed to exchange dataflow information between different dataflow tools, we explore systematic implementation of signal processing systems using CAL, SDF-like region detection, TDP-based static scheduling, and CAL-to-C (CAL2C) translation. Our approach, which is a novel integration of three complementary dataflow tools - the CAL parser, TDP, and CAL2C - is demonstrated on an MPEG Reconfigurable Video Coding (RVC) decoder.},
	keywords = {automated generation, automatic design flow, CAL language, CAL networks, CAL-to-C translation, CAL2C translation, coarse-grain dataflow representations, Computational modeling, data flow computing, dataflow information, Dataflow programming, decoding, Digital signal processing, Libraries, MPEG-4 reconfigurable video coding decoder implementation, parallel languages, SDF detection, synchronous dataflow detection, TDP, TDP-based static scheduling, The Dataflow interchange format Package, Transform coding, user-friendly design, video coding, video processing systems, XML, XML format},
	author = {Gu, Ruirui and Piat, J. and Raulet, M. and Janneck, J.W. and Bhattacharyya, Shuvra S.}
}
@conference {19281,
	title = {Design and implementation of real-time signal processing applications on heterogeneous multiprocessor arrays},
	booktitle = {2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)},
	year = {2010},
	month = {2010},
	pages = {2121 - 2125},
	abstract = {Processing structures based on arrays of computational elements form an important class of architectures, which includes field programmable gate arrays (FPGAs), systolic arrays, and various forms of multicore processors. A wide variety of design methods and tools have been targeted to regular processing arrays involving homogeneous processing elements. In this paper, we introduce the concept of field programmable X arrays (FPXAs) as an abstract model for design and implementation of heterogeneous multiprocessor arrays for signal processing systems. FPXAs are abstract structures that can be targeted for implementation on application-specific integrated circuits, FPGAs, or other kinds of reconfigurable processors. FPXAs can also be mapped onto multicore processors for flexible emulation. We discuss the use of dataflow models as an integrated application representation and intermediate representation for efficient specification and mapping of signal processing systems on FPXAs. We demonstrate our proposed models and techniques with a case study involving the embedding of an application-specific FPXA system on an off-the-shelf FPGA device.},
	keywords = {application specific integrated circuits, application-specific integrated circuits, computational elements, Computer architecture, decoding, Field programmable gate arrays, field programmable X arrays, FPGA, FPXA, Integrated circuit modeling, Logic Design, microprocessor chips, multicore processors, multiprocessor arrays, real-time signal processing, reconfigurable architectures, reconfigurable processors, Routing, Signal processing, Signal processing systems, systolic arrays, Viterbi algorithm},
	author = {Wu, Hsiang-Huang and Chung-Ching Shen and Bhattacharyya, Shuvra S. and Compton, K. and Schulte, M. and Wolf, M. and Zhang, Tong}
}
@conference {18568,
	title = {Field-to-frame transcoding with spatial and temporal downsampling},
	booktitle = {Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on},
	volume = {4},
	year = {1999},
	month = {1999///},
	pages = {271 -275 vol.4 - 271 -275 vol.4},
	abstract = {We present an algorithm for transcoding high-rate compressed bitstreams containing field-coded interlaced video to lower-rate compressed bitstreams containing frame-coded progressive video. We focus on MPEG-2 to H.263 transcoding, however these results can be extended to other lower-rate video compression standards including MPEG-4 simple profile and MPEG-1. A conventional approach to the transcoding problem involves decoding the input bitstream, spatially and temporally downsampling the decoded frames, and re-encoding the result. The proposed transcoder achieves improved performance by exploiting the details of the MPEG-2 and H.263 compression standards when performing interlaced to progressive (or field to frame) conversion with spatial downsampling and frame-rate reduction. The transcoder reduces the MPEG-2 decoding requirements by temporally downsampling the data at the bitstream level and reduces the H.263 encoding requirements by largely bypassing H.263 motion estimation by reusing the motion vectors and coding modes given in the input bitstream. In software implementations, the proposed approach achieved a 5 times; speedup over the conventional approach with only a 0.3 and 0.5 dB loss in PSNR for the Carousel and Bus sequences},
	keywords = {data compression, decoding, Encoding, field-coded interlaced video, field-to-frame transcoding, frame-coded progressive video, H.263 motion estimation, H.263 transcoding, high-rate compressed bitstreams, lower-rate compressed bitstreams, Motion estimation, MPEG-1, MPEG-2, MPEG-4, spatial downsampling, standards, temporal downsampling, transcoder, video coding, video compression standards},
	doi = {10.1109/ICIP.1999.819593},
	author = {Wee,S.J. and Apostolopoulos,J.G. and Feamster, Nick}
}
