分形图像编码,基于分形维数对图像进行块分割,提出了一种混合编码方法,引入不变矩限制匹配块的搜索范围.-fractal image coding, based on the fractal dimension of the image segmentation block, a mixed-encoding method, the introduction of the same restrictions Moment matching piece of the scope of the sear

Recognition of visual patterns and characters are independent of position, size, and orientation in the visual field has been the goal of much recent research. The method presented in this paper meets all these condition. An off-line signature matchi

经典矩量法点匹配程序，重推导，注释说明详细-Classical point matching moment method procedure

现在，基于视觉的手势识别中起着重要的在图像处理领域的作用，模式识别等在。人类的手是高度可变的器官和手特点是很容易受到各种环境因素的影响。考虑到手势的特性，在本文中我们提出了一种改进的YCbCr颜色空间的分割方法手势图像，并提取傅里叶描述子和胡矩作为识别特征。最后，Hausdorff距离用于识别手势的建模方法匹配。实验结果表明，提出的方法具有较高的操作和识别率。 关键词：-Now vision-based gesture recognition plays an important rol