tag:blogger.com,1999:blog-2281405972012786457.post8369545437448470953..comments2024-03-21T00:28:14.467-07:00Comments on DsynFLO: simplAR: Augmented reality for OpenCV beginnersBharath Prabhuswamyhttp://www.blogger.com/profile/11625552783909809165noreply@blogger.comBlogger19125tag:blogger.com,1999:blog-2281405972012786457.post-90400662639999408622012-12-14T22:57:02.067-08:002012-12-14T22:57:02.067-08:00hello.
nice post..
i want to implement same with...hello.<br /><br />nice post..<br /><br />i want to implement same with android..can u please guide for the same.<br /><br />Anonymoushttps://www.blogger.com/profile/07172470259051985257noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-17121797167445969312012-12-12T13:41:31.328-08:002012-12-12T13:41:31.328-08:00Thanks a lot, it worked very well
I was trying to ...Thanks a lot, it worked very well<br />I was trying to find a simple marker tracker in opencv !!!<br /><br />RogerRogerhttps://www.blogger.com/profile/14157944795883859895noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-30629393769657650582012-12-01T14:34:11.960-08:002012-12-01T14:34:11.960-08:00Gr8! Works out of the box - Used it on Ubuntu !
Gr8! Works out of the box - Used it on Ubuntu !<br />tneahelphttps://www.blogger.com/profile/15977070083098100266noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-91523917989741315032012-09-25T03:16:34.437-07:002012-09-25T03:16:34.437-07:00Hey awesome work buddy..similarly is it possible t...Hey awesome work buddy..similarly is it possible to overlay 3d models on to the pattern ..if yes then pls do sharevicky singhhttps://www.blogger.com/profile/12717139011380982120noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-56582492722745780452012-07-15T15:50:16.926-07:002012-07-15T15:50:16.926-07:00Thanks the program is working perfectly (QT 4.7 an...Thanks the program is working perfectly (QT 4.7 and OpenCV 2.1), just would be better if you use some "if" when the pointer to images and videos is empty.<br /><br />Bye!Chechushttps://www.blogger.com/profile/08755037131358539482noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-63060588423704989152012-05-30T23:05:16.159-07:002012-05-30T23:05:16.159-07:00Hi Bharath,
thank you for the wonderful example.
B...Hi Bharath,<br />thank you for the wonderful example.<br />But I am having trouble compiling the source file, I am getting this error:<br /><br />error LNK2019: unresolved external symbol _cvFindChessboardCorners referenced in function _main<br /><br />I have included almost all files, which header file I might be missing?Misbahuddinhttps://www.blogger.com/profile/17670571354979122602noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-82831355429307705152011-09-14T08:49:40.169-07:002011-09-14T08:49:40.169-07:00Is there a way to do multiple marker tracking? tha...Is there a way to do multiple marker tracking? thankspjhttps://www.blogger.com/profile/17444065470186686060noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-70164863092755512252011-03-21T20:55:07.102-07:002011-03-21T20:55:07.102-07:00Its a good idea to have a copy of Opencv O'rei...Its a good idea to have a copy of Opencv O'reilly book.<br />http://oreilly.com/catalog/9780596516130<br /><br />You can look into ARToolkit, an open source lib. for augmented reality. It can track multiple markers and augment it.<br />http://www.hitl.washington.edu/artoolkit/documentation/Bharath Prabhuswamyhttps://www.blogger.com/profile/11625552783909809165noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-36460047713512714482011-03-21T18:10:15.569-07:002011-03-21T18:10:15.569-07:00thanks for the info, do you have any helpful links...thanks for the info, do you have any helpful links where I could start to do this?Eamonn Finnhttps://www.blogger.com/profile/08673501607365319211noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-60444140693556396982011-03-21T09:22:02.404-07:002011-03-21T09:22:02.404-07:00@tanarama:
I ve not heard of any 3D animation usi...@tanarama:<br /><br />I ve not heard of any 3D animation using opencv, i would suggest combining opengl to get 3d objects in to the frame.<br /><br />@Eamonn:<br /><br />Thanks..:)..<br />Yes it is possible to have multiple marker tracking system. The above program and any other program for that matter which uses the function <br /><b>cvFindChessboardCorners</b> detects only one pattern. if two such patterns are shown it would be confused and throw an error.<br /><br />The only way to detect more than one pattern is to have a custom pattern detecting algorithm.Bharath Prabhuswamyhttps://www.blogger.com/profile/11625552783909809165noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-29615236630821395752011-03-21T09:11:58.960-07:002011-03-21T09:11:58.960-07:00hi,
I'm wondering if it would be possible to...hi, <br /><br />I'm wondering if it would be possible to track multiple markers using opencv? This is a very cool sample by the way!Eamonn Finnhttps://www.blogger.com/profile/08673501607365319211noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-88498220016236656992011-03-11T07:50:15.067-08:002011-03-11T07:50:15.067-08:00hi bharath is there any sample with 3d animation w...hi bharath is there any sample with 3d animation with c# & open cvtanahttps://www.blogger.com/profile/09309135477140168313noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-51101874888082290742011-02-20T19:32:59.741-08:002011-02-20T19:32:59.741-08:00@segfault: I agree that this code is Horrible.
I ...@segfault: I agree that this code is Horrible.<br /><br />I quote what I said before..."These programs are just guidelines of the algorithms that help you achieve the objective of the program."<br /><br />..And its up to you to go ahead and show all the programming skills, having done this.Bharath Prabhuswamyhttps://www.blogger.com/profile/11625552783909809165noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-12701625973409622312011-02-20T12:09:23.128-08:002011-02-20T12:09:23.128-08:00@segfault: True, here's an article that might ...@segfault: True, here's an article that might help - http://www.aishack.in/2010/01/opencv-memory-managementUtkarsh Sinhahttps://www.blogger.com/profile/00170959329814822659noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-57871951093781726102011-02-20T11:57:03.560-08:002011-02-20T11:57:03.560-08:00While the sample works, the coding is horrible.
In...While the sample works, the coding is horrible.<br />In your example you have multiple memory leaks - when you create images using cvCreateImage, images are never released. Compiler will not automatically free this memory for you, so the application will run out of memory and crash. This isn't java or python, if you want memory to be automatically released, use smart pointers.SegFaulthttps://www.blogger.com/profile/15188291661092699245noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-59067135166039557642010-08-22T20:36:46.204-07:002010-08-22T20:36:46.204-07:00great sample.... thanks 4 sharing..... :)great sample.... thanks 4 sharing..... :)Sagar Shelarhttps://www.blogger.com/profile/10651403158097061151noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-43388376325406904782010-06-26T10:41:30.163-07:002010-06-26T10:41:30.163-07:00Ok.. great!Ok.. great!Utkarsh Sinhahttps://www.blogger.com/profile/00170959329814822659noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-89792489557639984802010-06-23T19:51:25.104-07:002010-06-23T19:51:25.104-07:00As long as the pattern is visible, the picture get...As long as the pattern is visible, the picture gets augmented (up to certain acute angle and distance).Bharath Prabhuswamyhttps://www.blogger.com/profile/11625552783909809165noreply@blogger.comtag:blogger.com,1999:blog-2281405972012786457.post-9686834778740812022010-06-22T13:32:30.583-07:002010-06-22T13:32:30.583-07:00Hi! I haven't tried running this, but what wil...Hi! I haven't tried running this, but what will happen if I tilt the pattern towards or away from the camera (about an axis parallel to the cam)?Utkarsh Sinhahttps://www.blogger.com/profile/00170959329814822659noreply@blogger.com