CAJ | 학술논문

为增强直方图距离度量的辨别力，对二次型的直方图距离度量问题进行了研究。首先，对传统的二次型距离及其存在的问题进行了简要评述；然后，通过对传统二次型距离度量函数进行改进和构建新的相关矩阵，提出了改进的二次型直方图距离度量准则；最后对所提距离度量的快速计算以及高维直方图的距离度量问题进行了讨论。改进的距离度量准则充分考虑了直方图子区间之间的相关性。通过形状匹配、图像检索以及视觉跟踪等一系列实验测试，验证了所提距离度量准则的有效性和优越性。
위증강직방도거리도량적변별력，대이차형적직방도거리도량문제진행료연구。수선，대전통적이차형거리급기존재적문제진행료간요평술；연후，통과대전통이차형거리도량함수진행개진화구건신적상관구진，제출료개진적이차형직방도거리도량준칙；최후대소제거리도량적쾌속계산이급고유직방도적거리도량문제진행료토론。개진적거리도량준칙충분고필료직방도자구간지간적상관성。통과형상필배、도상검색이급시각근종등일계렬실험측시，험증료소제거리도량준칙적유효성화우월성。
In order to improve the discrimination of histogram distance measurement,the problem of histogram distance measurement based on the quadratic-form metric is researched.Firstly,the traditional quadratic-form metric and its disadvantage are briefly reviewed.Then,an improved quadratic-form metric for histogram distance measurement is proposed by modifying the traditional quadratic-form distance function and the correlation matrix. Finally, the fast computation of the proposed metric and the measurement of high dimension histograms are discussed.The proposed metric takes a full consideration of the correlation between histogram bins,which increases its discrimination.Experiments based on shape matching,image retrieval and visual tracking validate the effectiveness of the proposed metric and its superiority over the traditional ones.