1. 佛山科学技术学院计算机系,广东,佛山,528000
2. 广东技术师范学院电子与信息学院,广东,广州,510665
3. 华中科技大学计算机学院,湖北,武汉,430074
4. 佛山科学技术学院计算机系,广东,佛山,528000
5. 广东技术师范学院电子与信息学院,广东,广州,510665
6. 华中科技大学计算机学院,湖北,武汉,430074
纸质出版:2014
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周燕, 曾凡智, 赵慧民, 等. 一种基于精细化稀疏自适应匹配追踪算法的图像检索方法研究[J]. 电子学报, 2014,42(12):2457-2466.
ZHOU Yan, ZENG Fan-zhi, ZHAO Hui-min, et al. An Image Retrieval Method Based on Meticulous Sparsity Adaptive Matching Pursuit Algorithm[J]. Acta Electronica Sinica, 2014, 42(12): 2457-2466.
周燕, 曾凡智, 赵慧民, 等. 一种基于精细化稀疏自适应匹配追踪算法的图像检索方法研究[J]. 电子学报, 2014,42(12):2457-2466. DOI: 10.3969/j.issn.0372-2112.2014.12.018.
ZHOU Yan, ZENG Fan-zhi, ZHAO Hui-min, et al. An Image Retrieval Method Based on Meticulous Sparsity Adaptive Matching Pursuit Algorithm[J]. Acta Electronica Sinica, 2014, 42(12): 2457-2466. DOI: 10.3969/j.issn.0372-2112.2014.12.018.
基于压缩感知理论
研究了一种精细化稀疏自适应匹配追踪(Meticulous Sparsity Adaptive Matching Pursuit
MSAMP)算法
在此基础上提出了一种新的数字图像检索方法.首先对图像的RGB颜色、灰度共生矩阵按照列优先次序形成颜色及纹理的原始信号
然后对这两类信号采用分块压缩感知测量方法对图像进行分块测量
得到代表颜色特征和纹理特征的分块测量向量.其次利用MSAMP算法进行分块重构
计算出分块原始信号差量及其稀疏值.最后在图像检索时
通过计算图像的整体相似度
重点对差量的稀疏性进行估计
不需要精确恢复原始信号
从而减少迭代次数
加快检索速度.仿真实验表明
应用MSAMP算法的图像检索方法在检索速度和查准率等指标上具有较高的性能.
Based on compressed sensing theory
we research a meticulous sparsity adaptive matching pursuit algorithm
and propose a new method for digital image retrieval on this basis.Firstly
the original signal of color and vein are formed from RGB color and gray level co-occurrence matrix by order of column prior.Then
these two signals are measured by the blocked compressive sensing method
and measurement vectors are obtained which representing the color and texture features.Secondly
we reconstruct the image by blocks using the MSAMP(Meticulous Sparsity Adaptive Matching Pursuit) algorithm
and calculate the difference and sparse value between the original blocked signals.Finally
we calculate the overall image similarity
and focus on estimating the sparseness of measurement difference.Because it does no need to recover the original signal precisely
so it can reduce the number of iteration and accelerate the retrieval speed.Simulation results show that the retrieval speed and retrieval precision about this image retrieval algorithm based on compressive sensing signal have higher performance.
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