2014-04-08 20:44:24 -0500 | commented answer | sobel for image matching thank you! I have readed the ref,but it's not suitable for my use.Could you give me some advice about how to make my own sobel descriptor? Is there any function in the opencv ? |

2014-04-08 07:04:59 -0500 | asked a question | sobel for image matching I want to use the sobel filter for the image matching ,but i don't know how to make the sobel descriptor in the opencv? For example ,if I want to use the 5*5 sobel block as the matching descripotr,what should i do? |

2014-03-17 07:31:12 -0500 | asked a question | Please help me! How to compute the rotation and translation matrix? I have computed the corresponding coordinates from two successive images,but I do not know how to compute the rotation and translation matrix (which I use the matrix to estimate the camera motion) ? Is there a function in opencv that could solve my problem? |

2014-03-17 06:33:26 -0500 | answered a question | solvePnPRansac incorrect result I have done !!! |

2014-03-12 22:08:27 -0500 | asked a question | solvePnPRansac incorrect result when i use the solvepnpransac ,i end up with the bad result [1 0 0 0, 0 1 0 0, 0 0 1 0], anyone know the reason? |

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