From sukhad.anand at gmail.com Mon Jan 2 15:45:54 2017 From: sukhad.anand at gmail.com (Sukhad Anand) Date: Tue, 3 Jan 2017 02:15:54 +0530 Subject: [Kwiver-users] code for loop closure Message-ID: Can you please provide compilable source code for homography_guided_loop_closure or the library from which i can extract the code? -------------- next part -------------- An HTML attachment was scrubbed... URL: From matt.leotta at kitware.com Mon Jan 2 16:06:06 2017 From: matt.leotta at kitware.com (Matthew Leotta) Date: Mon, 2 Jan 2017 16:06:06 -0500 Subject: [Kwiver-users] code for loop closure In-Reply-To: References: Message-ID: <79D72A40-740A-4B20-8052-5BE97FF45B5C@kitware.com> > On Jan 2, 2017, at 3:45 PM, Sukhad Anand wrote: > > Can you please provide compilable source code for homography_guided_loop_closure or the library from which i can extract the code? > > On the current release branch it is here: https://github.com/Kitware/maptk/blob/release/maptk/plugins/vxl/close_loops_homography_guided.cxx On the current master branch all the plugins have moved out of MAP-Tk and into KWIVER. You can now find it here: https://github.com/Kitware/kwiver/blob/master/arrows/vxl/close_loops_homography_guided.cxx ?Matt -------------- next part -------------- An HTML attachment was scrubbed... URL: From matt.leotta at kitware.com Mon Jan 2 16:11:31 2017 From: matt.leotta at kitware.com (Matthew Leotta) Date: Mon, 2 Jan 2017 16:11:31 -0500 Subject: [Kwiver-users] (no subject) In-Reply-To: References: Message-ID: > On Dec 23, 2016, at 3:46 AM, Sukhad Anand wrote: > > what does the camera sample rate signify in the bundle_adjust_tracks.conf ? That parameter is the rate at which to sample your frames for the purpose of bundle adjustment. That is, if you tracked features on every frame, but only need cameras on a subset of frames you can adjust this parameters. If you set it to ?2? it will use every other frame. If you set it to ?3? it will use every third frame. Generally you can just leave it at ?1? unless you have high frame rate video and need to temporally down sample. Sometimes having more redundant video frames improves feature tracking, but you might not want or need that many frames for 3D reconstruction. ?Matt From matt.leotta at kitware.com Mon Jan 2 16:13:25 2017 From: matt.leotta at kitware.com (Matthew Leotta) Date: Mon, 2 Jan 2017 16:13:25 -0500 Subject: [Kwiver-users] errors on a dataset In-Reply-To: References: Message-ID: <43EA06AE-E39C-4C06-9CF6-CE19074B8BED@kitware.com> This is not enough information to debug the problem. It would be helpful to have the complete log. > On Dec 23, 2016, at 3:33 AM, Sukhad Anand wrote: > > I ran bundle_adjust_tracks on my own dataset > > The processing hangs after displaying the below output > > E matrix num inliers = 12257/12257 > median scale = 1 > no landmark projections for new camera > current reprojection RMSE: -nan > frame 0 - num landmarks = 0 > frame 0 uses reference 0 > > please suggest how to correct this