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基于改進(jìn)Fast MBD顯著(zhù)性檢測和多特征融合匹配的靶紙區域快速檢測算法
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華中科技大學(xué)自動(dòng)化學(xué)院,華中科技大學(xué)自動(dòng)化學(xué)院

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A Fast Detection Algorithm of Target Sheets Based on Improved Fast MBD Saliency Detection and Multi-Feature Fusion Matching
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School of Automation, Huazhong University of Science and Technology,

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    摘要:

    為了解決基于機器視覺(jué)的自動(dòng)報靶系統快速、準確定位靶紙區域的問(wèn)題,通過(guò)對靶紙圖像的顏色和形狀特性分析,提出一種基于改進(jìn)Fast Minimum Barrier Distance顯著(zhù)性和多特征匹配的靶紙區域快速檢測算法。該算法在原始Fast Minimum Barrier Distance顯著(zhù)區域提取算法的基礎上,引入局部區域對比度先驗和形狀先驗作為顯著(zhù)性區域提取的補充準則。同時(shí),為了判斷提取到的區域是否包含靶紙,再引入多特征匹配算法。首先,分別對圖像邊界連通先驗、局部區域對比度先驗和形狀先驗進(jìn)行量化,形成距離圖、對比度圖和形狀圖,再結合三者分割出顯著(zhù)性目標區域,然后提取分割出的各目標區域的多種特征,并將其進(jìn)行特征融合,最后利用1-范式將得到的目標特征與模板特征進(jìn)行匹配,把匹配結果小于閾值的目標視為靶紙。在400張包含靶紙圖像數據集上的實(shí)驗結果顯示了該算法的有效性。同時(shí),在華為海思平臺上,該算法處理速度能達到30幀/秒,足以證明該算法的實(shí)時(shí)性。

    Abstract:

    In order to solve the problem of automatic target-scoring systems, which is finding target sheet regions quickly and accurately from image, we propose a fast detection algorithm of target sheets based on Improved Fast Minimum Barrier Distance Saliency Detection and Multi-Feature Fusion Matching by analyzing the color character and the shape character of target sheets. We introduce local regional contrast prior knowledge and shape prior knowledge that are the compensation extraction criteria of salient regions to the origin Fast MBD Saliency Detection. Meanwhile, to determine whether the extracted region contains a target sheet, we introduce Multi-feature Fusion Matching. Firstly, we quantify image boundary connectivity prior knowledge, local regional contrast prior knowledge and shape prior knowledge respectively to calculate distance map, contrast map and shape map. Then we incorporate the three maps to segment salient regions. When we get salient regions, we extract their multi-feature to measure similarity with saved model feature by L1 norm. Finally, we regard the salient region whose similarity measuring value is less than threshold as target sheet. Experimental results on the dataset that has 400 images containing target sheets show that the algorithm we proposed is effective. Meanwhile, it is enough to prove real-time that the speed of the algorithm we proposed will achieve 30FPS at Hua Wei HiSilicon platform.

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劉森斌,汪國有.基于改進(jìn)Fast MBD顯著(zhù)性檢測和多特征融合匹配的靶紙區域快速檢測算法計算機測量與控制[J].,2018,26(9):23-28.

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  • 收稿日期:2018-02-09
  • 最后修改日期:2018-03-15
  • 錄用日期:2018-03-15
  • 在線(xiàn)發(fā)布日期: 2018-09-14
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