A color image edge detector based on quaternion representation 基于四元数描述的彩色图象边缘检测器
2 . the design problem of edges detector steering orientation 具有方向可调节性的边缘检测器的设计问题。
The results of image analyzing and object recognition have a close relationship with the performance of edges detector 边缘检测器的性能直接影响着图像分析和物体识别的结果。
Generally , edges in some specified directions can be only detected by most of edges detectors , and detecting edges in many different orientations using usual convolution means is very costly computationally 通常的边缘检测器只能有效检测几个特定方向的边缘,如果需要检测图像中各个不同方向的边缘,使用通常的卷积方法在计算上是十分费时的。