图像拼接的相位相关（使用汉明窗） [英] phase correlation for image stitching (using of Hamming Window)

问题描述

我使用相位相关进行图像拼接，它可以为我的大部分测试数据提供良好的结果。我只是stitiching图像左右和上下（只有移位）
但是有一些奇怪的行为。
第一个奇怪的坐标，我必须转换坐标

I use phase correlation for image stitching and it gives good results for most part of my test data. I just stitiching pairs of image left-right and top-bottom(only shift) But there is some strange behaviour. First strange coordinates, I must convert coordinates

//if L-R
pt.x= src->width-maxloc.x;
pt.y= src->height-maxloc.y;
if(pt.y>(temp->height/2))
  pt.y= -(maxloc.y+1);
//if T-B
pt.x= src->width-maxloc.x;
pt.y= src->height-maxloc.y;
if(pt.x>(temp->width/2))
  pt.x= -(maxloc.x+1);

然后使用Hamming窗口似乎当我使用Hamming窗口进行左右拼接时效果更好（即使是不好的情况），但是如果我使用汉明窗口进行上下工作则很糟糕（即使情况很好）。
我认为我不需要为L-R和T-B分离个别情况，我希望相位相关只给我全局最大值，但似乎在理解FFT或相位相关时会出现一些错误。
这里是我使用的代码 http://codepaste.ru/9415/

Then usage of Hamming window it seems that when I use Hamming window for left-right stitching it works better(even for bad cases), but if I use Hamming window for top-bottom it works bad (even in good cases). And I think I don't need to separate individual cases for L-R and T-B, I expect that phase correlation just give me the global maximum, but it seems that some mistakes in understanding of FFT or phase correlation. here is the code that I use http://codepaste.ru/9415/

推荐答案

您的代码有一个明显的错误：

Your code has a glaring mistake:

//if L-R
pt.x= src->width-maxloc.x;
pt.y= src->height-maxloc.y;
if(pt.y>(temp->height/2))
  pt.y= -(maxloc.y+1);
//if T-B
pt.x= src->width-maxloc.x;  // (repeated)
pt.y= src->height-maxloc.y; // <- overwrites previous value
if(pt.x>(temp->width/2))
  pt.x= -(maxloc.x+1);

请显示您尝试注册的图片。

Please can you show the images that you are trying to register.

这篇关于图像拼接的相位相关（使用汉明窗）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！