2014-10-31 10:29:22 -0600 | received badge | ● Editor (source) |
2014-10-31 10:27:11 -0600 | commented question | how to calibrate camera (stereo) No problem, in fact thank you for your efforts. The two cameras are fixed on the microscope (with screw). So I am pretty sure their position doesn't change and I don't process the images after the acqusition. Yea, hopefully someone knows what is wrong with my images. Thanks again :D |
2014-10-31 05:32:23 -0600 | commented question | how to calibrate camera (stereo) the calibration target is a circle grid. the calibration images is here https://dl.dropboxusercontent.com/u/15437492/images.zip I have to mask these images appropiately in order to find the circles. images with markers: https://dl.dropboxusercontent.com/u/15437492/marked_images.zip markers data (points only; format is objectX,objectY,objectZ,img1X,img1Y,img2X,img2Y per line) https://dl.dropboxusercontent.com/u/15437492/markers.zip if you want you can load these points as the input for stereocalib. My program is very similar to the one from opencv example. I tried both First: to calibrate the camera individually before stereo-calibration (ofc fix-intrinsic flag is set while using stereocalib) Second: directly use stereocalib I still have black images as output. |
2014-10-30 13:35:31 -0600 | commented question | how to calibrate camera (stereo) hi thanks for your answer, i am gonna post them tomorrow. |
2014-10-30 13:12:09 -0600 | asked a question | how to calibrate camera (stereo) Hi i am trying to calibrate two cameras which are looking at a mini object through a microscope. The calibration target is a circle grid. I have to mark these images appropriately in order to find the circles (images with markers) markers data : (points only; format is objectX,objectY,objectZ,img1X,img1Y,img2X,img2Y per line) if you want you can load these points as the input for stereocalib. My program is very similar to the one from opencv example. I tried both :
I still have black images as rectification output. From what I read the calibration should be done by moving the calibration target around, so that it fulfill some criteria:
But due to space and lighting limitation I can only move up and down using the calibration target. It is impossible to do the (stereo) calibration like this? Since I got only black images after using stereo rectify. Thank you |
2013-08-26 07:21:49 -0600 | received badge | ● Scholar (source) |
2013-08-13 03:44:15 -0600 | asked a question | stereo rectify incorrect result Hi i am new to computer vision and also to opencv. I am trying to rectify a stereo images with the following workflow:
After remap I got a weird result, the images are not rectified at all. These are the images I used: These are the result: I think I made a basic mistake but I don't know what. Could anyone clarify me? Thank you in advance! |