CAJ | 학술논문

许多局部特征描述都假设场景是平面的,而在真实场景中捕捉到的图片都是来自三维世界.在图像匹配和目标检测中,三维角点作为一种包含三维信息的形状特征,是一种新的重要不变特征,但从普通角点中自动鉴选出三维角点比较困难.基于图像的图形文法提出一种新的三维角点检测方法.该方法在一定程度上能够检测出角点的三维特性.实验结果表明三维角点特征在图像匹配中是适用的,证明了所提出的方法的有效性.
허다국부특정묘술도가설장경시평면적,이재진실장경중포착도적도편도시래자삼유세계.재도상필배화목표검측중,삼유각점작위일충포함삼유신식적형상특정,시일충신적중요불변특정,단종보통각점중자동감선출삼유각점비교곤난.기우도상적도형문법제출일충신적삼유각점검측방법.해방법재일정정도상능구검측출각점적삼유특성.실험결과표명삼유각점특정재도상필배중시괄용적,증명료소제출적방법적유효성.
Most of local feature descriptors assume that the scene is planar.In the real scene,the captured images come from the 3-D world.3-D corner as a novel invariant feature is important for the image matching and the object detection,while automatically discriminating 3-D corners from ordinary corners is difficult.A novel method for 3-D corner detection is proposed based on the image graph grammar,and it can detect the 3-D features of corners to some extent.Experimental results show that the method is valid and the 3-D corner is useful for image matching.