根据CSLBP(center-symmetric local binary pattern)和Uniform LBP(local binary pattern)特征描述行人局部纹理互补性的特点,提出将二者级联的组合特征用于行人检测:基于灰度图像的纹理特征(hybrid local binary pattern,HLBP)和基于...根据CSLBP(center-symmetric local binary pattern)和Uniform LBP(local binary pattern)特征描述行人局部纹理互补性的特点,提出将二者级联的组合特征用于行人检测:基于灰度图像的纹理特征(hybrid local binary pattern,HLBP)和基于颜色空间的纹理特征(color based hybrid local binary pattern,CHLBP)。实验结果表明,当FPPW=10–4时,HLBP特征的检测率为93.96%,与Uniform LBP和CSLBP特征相比分别提高3.46%和9.68%,基于颜色空间L′C′C′与HIKSVM分类器结合时的检测率高达98.58%。与传统的纹理特征检测方法相比,该特征提高了行人检测精度,降低了误检率,检测性能得到较大幅度的提升。展开更多
With the methods of I& and *m index,the vein of spatial patterns of P. densiflora population in Shandong province has been preliminarily studied.The results show that the clump is bigger and the vein is rougher fo...With the methods of I& and *m index,the vein of spatial patterns of P. densiflora population in Shandong province has been preliminarily studied.The results show that the clump is bigger and the vein is rougher for P.densiflora forest with high administrative age levels than that with low age levels.The clump of artificial forest doesn’t show evident patches,and the vein is trifling.The individual distribution pattern of P.densiflora forest with light artificial influence is always random,while that of P.densiflora forest with heavy artificial influence is always even.展开更多
文摘根据CSLBP(center-symmetric local binary pattern)和Uniform LBP(local binary pattern)特征描述行人局部纹理互补性的特点,提出将二者级联的组合特征用于行人检测:基于灰度图像的纹理特征(hybrid local binary pattern,HLBP)和基于颜色空间的纹理特征(color based hybrid local binary pattern,CHLBP)。实验结果表明,当FPPW=10–4时,HLBP特征的检测率为93.96%,与Uniform LBP和CSLBP特征相比分别提高3.46%和9.68%,基于颜色空间L′C′C′与HIKSVM分类器结合时的检测率高达98.58%。与传统的纹理特征检测方法相比,该特征提高了行人检测精度,降低了误检率,检测性能得到较大幅度的提升。
文摘With the methods of I& and *m index,the vein of spatial patterns of P. densiflora population in Shandong province has been preliminarily studied.The results show that the clump is bigger and the vein is rougher for P.densiflora forest with high administrative age levels than that with low age levels.The clump of artificial forest doesn’t show evident patches,and the vein is trifling.The individual distribution pattern of P.densiflora forest with light artificial influence is always random,while that of P.densiflora forest with heavy artificial influence is always even.
