Basically I have 3 mat like this: Mat descriptors1 Mat descriptors2 Mat descriptors3 Where each descriptors have been loaded like this: extractor->compute( object, kp, descriptors ); How c...

I am trying to detect an object from the following code involving surf detector, I do not want to draw matches, I want to draw a rectangle around the detected object, but somehow I am unable to get...

I used a SURF program from a tutorial to detect object in a video frame. but that detects all the key points and descriptors. how i change the program to detect only specific object? CvSeq *imageK...

I'm trying to instantiate a SURF object in python using OpenCV as described here but this happens: >>> import cv2 >>> cv2.__version__ '2.4.0' >>> cv2.SURF() Traceback (m...

for my master thesis, i am running some test on the SIFT SURF en FAST algoritms for logo detection on smartphones. when i simply time the detection, description en matching for some methods i get ...

I know there are already several questions with the same subject asked here, but I couldn't find any help. So I want to compare 2 images in order to see how similar they are and I'm using the well...

I'm using OpenCV 2.3 for keypoints detection and matching. But I am a bit confused with the size and response parameters given by the detection algorithm. What do they exactly mean? Based on the O...

I'm trying to implement a traffic sign recognizer with OpenCV and SURF method. My problem is that i get random results (sometimes really accurate, sometimes obviously wrong) and i cant undertsand w...

So, I'm trying to stitch images taken by a microscope of a microchip, but it's very hard to have all the features aligned. I already have a 50% overlap between two adjacent images, but even with th...

Here's my problem. I manually extracted key points features with SURF on multiple images. But I also already know which pair of points are going to match. The thing is, I'm trying to create my matc...

I am trying to use OpenCV to match images like these: img2 http://img849.imageshack.us/img849/8177/clearz.jpg And I need to find the best intersection of them. I tried using SURFDetector and ...

I want to compare the SURF descriptors in one image (A), with the descriptors in several other images (B,C,D,..) to find the most similar image to A. The descriptors have 64 dimensions. Using C# a...

After asking here and trying both SURF and SIFT, neither of them seams to be efficient enough to generate interest points fast enough to track a stream from the camera. SURF, for example, takes ar...

Which method is the best to compare two images and discard outliers points? In find_obj.cpp opencv example, they use FLANN, but don't discard outliers. I have seen some methods like using Kmeans o...

I'm searching for a usable metric for SURF. Like how good one image matches another on a scale let's say 0 to 1, where 0 means no similarities and 1 means the same image. SURF provides the followi...

I have made a videochat, but as usual, a lot of men like to ehm, abuse the service (I leave it up to you to figure the nature of such abuse), which is not something I endorse in any way, nor do mos...

After having this question answered through a link to an external site, I realized that I solved a problem, just to get another one: On a logarithm scale the C=Z parameter of MESH and SURF function...