abstract invariant

基本解释

The development of abstract algebra, combinatory, computer science and the rise of computer algebra injected new vitality into invariant theory;
抽象代数的发展，组合学的进步，计算机科学的发展和计算机代数学的出现为不变量理论注入了新的活力；
Abstract : In order to improve the stability and reliability of image matching, this paper applied the scale invariant feature transform algorithm to image matching.
摘要：针对图像特征提取与匹配的适应性和准确性的问题，本文提出将尺度不变特征变换算法应用到图像特征点提取与匹配。
Abstract : The Scale-invariant Feature Transform(SIFT) algorithm was improved in this paper, which could match two pictures and could also compute the object rotation angles in the pictures.
摘要：改进了传统的尺度不变特征变换（SIFT）算法，使其在进行图像匹配的同时，可以求取出物体的旋转角度。