2014-04-05 19:27:00 -0600 | received badge | ● Necromancer (source) |
2013-11-21 04:06:53 -0600 | commented answer | haar cascade parameters @ioanna read section 5.3 and look at figure 11 in this paper: http://www.multimedia-computing.de/mediawiki/images/5/52/MRL-TR-May02-revised-Dec02.pdf larger input pattern size for the cascade training are not advisable. to detect a complex pattern like a car for instance, you need to decide on the viewing angle. top and side views of a car will likely have rectangular bounding box. front and rear views could fit in a square region. haar wavelets are always square or rectangular. you have to construct a feature set with those wavelets to describe the complex pattern you are interested in. finding the smallest such feature set is computationally advantageous. |
2013-11-21 02:46:41 -0600 | commented answer | haar cascade parameters i trained a haar cascade face detector using real adaboost with |
2013-11-06 05:57:43 -0600 | answered a question | Mergevec.cpp : Error (compilation) some more details about solving issues related to making mergvec from mergvec.cpp can be found here: and here: https://code.google.com/p/tutorial-haartraining/issues/detail?id=2 |
2013-11-04 11:30:01 -0600 | commented question | Python, OpenCV: unable to make custom LBP cascade using opencv_traincascade started a bounty on SO: http://stackoverflow.com/q/19464834/1463143 lets see if someone can help find a solution |
2013-10-23 05:00:32 -0600 | commented question | Problems with Traincascade: A Practical Problem @Median did you manage to solve the problem or get a meaningful error message via VisualStudio? |
2013-10-22 23:26:55 -0600 | commented question | Python, OpenCV: unable to make custom LBP cascade using opencv_traincascade it crashes right away. the training doesn't start. |
2013-10-22 23:24:54 -0600 | commented question | VideoCapture not working even in opencv 2.4.6.1 my solution was to install opencv 2.4.4 via macports. |
2013-10-22 03:06:52 -0600 | asked a question | Python, OpenCV: unable to make custom LBP cascade using opencv_traincascade This is a copy of my question on stackoverflow... I am using opencv 2.4.4 installed via macports with python 2.7.5 on a mac os x 10.7.5. I want to train a cascade to look for male frontal faces. But I am getting the The negative (background) image are taken from google: googleImages_noFaces (293 images) The positive images are taken from Karolinska database: trainingSet (70 images) I created a text file which indicates the relative location of background images: bgDesc.txt I also created a text file indicating the relative location, number of positive instances in the image (which is always 1) and bounding region of the object (which is the entire image): maleDesc.txt All these files can be downloaded from here The organization of the files is in this form: when I use opencv_createsamples a maleDesc.vec file is successfully created with the following line: if I use I then try which gives me an error. I have tried different values of I have not tried different values of -minHitRate, -maxFalseAlarmRate, -weightTrimRate, -maxDepth, -maxWeakCount because I don't really understand how they influence the behavior of opencv_traincascade algorithm. Any help is much appreciated :) |
2013-09-16 09:24:07 -0600 | asked a question | VideoCapture not working even in opencv 2.4.6.1 I installed opencv @2.4.6.1_0 + python27 via macports on my mac os x 10.7.5 and the VideoCapture stopped working. Can any of you verify that the latest version of opencv with python27 on macports is working properly? I've read all the discussions online about how opencv 2.4.6 had a bug in the video capture pipeline for linux machines and I've noticed how people have had to rebuild and reinstall python, numpy and opencv in the past week. Their problem seemed to have been resolved by rebuilding opencv 2.4.6.1 with WITH_V4L=ON. But I am stuck because I have been using macports for various libraries and I dont want to go through the whole download>build>make>install routine for all my different libraries. Please help. |
2013-05-28 08:30:53 -0600 | received badge | ● Supporter (source) |