Low Cost Implementation of Motion Estimation System Based on Diagonal Match Criterion
DOI: 10.1109/CISP.2008.569 Conference: Image and Signal Processing, 2008. CISP '08. Congress on, Volume: 2
Source: IEEE Xplore
To reduce the excessive amount of computation of traditional motion estimation (ME) algorithm, the diagonal match criterion (DMC) was proposed. DMC brings 75% reduction of computation Complexity and just 2.08% reduction of performance (PSNR) compare with traditional ME algorithm. What’s more important is that beside low, the performance reduction is very stable. And this makes DMC a valuable criterion. However, at the implementing side, DMC brings much irregularity of data flow. So the Lean snake registers array (LSRA) was proposed to conquer the irregularity. With this problem solved, the implementation makes a good use of the advancement of the algorithm, leading to high speed with very low cost of PEs and bandwidth. The implementation was designed when DMC was used in full-search strategy. The implementation supports real-time processing of 720×576 video with 25 fps at 80 MHz for a search range of [-7, +7] and macro block size of 8.
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ABSTRACT: Neurodegenerative diseases are associated with neuroinflammation, manifested by over-production of nitric oxide (NO) by microglial cells. Now there still lack effective treatment and prevention for the neurodegenerative diseases. Concerning neuroinflammation mediated by microglia cell, bioactivity-guided phytochemical research of Pongamia pinnata (L.) Pierre. was performed in this study. A new chlorinated flavonoid, 2’, 6’-dichlore-3’, 5’-dimethoxy- [2”,3”:7,8] -furanoflavone (1) was identified together with 29 known compounds, including flavonoids (compounds 2-17), isoflavonoids (compounds 18-23), chalcones (compounds 24-25), flavonones (compounds 26-27), triterpenes (28-29) and alkaloid (30) from the effective dichloride methane extract of dry stem of P. pinnata (L.) Pierre. Their structures were elucidated by physicochemical and spectral methods. The anti-neuroinflammatory activities were assayed in BV-2 cells by assessing LPS-induced NO production. Then pongaglabol methyl ether (2), lonchocarpin (24) and glabrachromene II (25) were selected as potential therapeutic agents for neurodegenerative diseases because of their significant anti-neuroinflammatory activities. Furthermore, the characteristics of structure type existing in P. pinnata (L.) Pierre and brief SAR were summarized respectively.Bioorganic & Medicinal Chemistry Letters 11/2014; 25(1). DOI:10.1016/j.bmcl.2014.11.015 · 2.42 Impact Factor
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