CAJ | 학술논문

提出了一种新的基于子空间的仿射不变图像匹配算法。首先，分析了仿射不变特征空间的非线性几何结构，给出了图像特征的仿射不变子空间表示模型。其次，根据目标特征矩阵由它的正交投影矩阵唯一确定这一特性实现特征的全局一致性匹配。最后，通过计算同一目标在仿射变换下的子空间几何距离度量达到匹配识别的目的。模拟变换匹配实验和真实图像序列实验结果表明：所提出的匹配方法对仿射变化下的图像目标匹配具有很好的适应性和较高的鲁棒性。
제출료일충신적기우자공간적방사불변도상필배산법。수선，분석료방사불변특정공간적비선성궤하결구，급출료도상특정적방사불변자공간표시모형。기차，근거목표특정구진유타적정교투영구진유일학정저일특성실현특정적전국일치성필배。최후，통과계산동일목표재방사변환하적자공간궤하거리도량체도필배식별적목적。모의변환필배실험화진실도상서렬실험결과표명：소제출적필배방법대방사변화하적도상목표필배구유흔호적괄응성화교고적로봉성。
This paper presented a novel affine invariant image matching algorithm based on subspace theory. Firstly, the nonlinear geometry structure of the affine invariant feature space was explored and the affine invariant subspace image features were extracted; then the global consistent matching of shape feature was realized based on the theory that the feature matrix of target shape can be determined only by its orthogonal projection matrix; finally, the same target images were matched with affine transform through computing the subspace distance. Matching experiment results on simulated transformed real images and real images shows that the proposed algorithm exhibits higher capacity to affine transform and robust to perturbations.