{"action":"created","issue":{"url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace/issues/347","repository_url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace","labels_url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace/issues/347/labels{/name}","comments_url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace/issues/347/comments","events_url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace/issues/347/events","html_url":"https://github.com/TadasBaltrusaitis/OpenFace/issues/347","id":295077036,"number":347,"title":"Gaze angles are incorrect for Fish eye lens","user":{"login":"DayanandVH","id":32278839,"avatar_url":"https://avatars0.githubusercontent.com/u/32278839?v=4","gravatar_id":"","url":"https://api.github.com/users/DayanandVH","html_url":"https://github.com/DayanandVH","followers_url":"https://api.github.com/users/DayanandVH/followers","following_url":"https://api.github.com/users/DayanandVH/following{/other_user}","gists_url":"https://api.github.com/users/DayanandVH/gists{/gist_id}","starred_url":"https://api.github.com/users/DayanandVH/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DayanandVH/subscriptions","organizations_url":"https://api.github.com/users/DayanandVH/orgs","repos_url":"https://api.github.com/users/DayanandVH/repos","events_url":"https://api.github.com/users/DayanandVH/events{/privacy}","received_events_url":"https://api.github.com/users/DayanandVH/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-02-07T10:09:13Z","updated_at":"2018-02-20T20:07:24Z","closed_at":null,"author_association":"NONE","body":"Hi Tadas,\r\n\r\nCongratulations on the OpenFace project. Its really great work as so many features are included in it. \r\n\r\nI'm planning to use OpenFace for one of my project. But I have one issue with it. I'm attaching fisheye lens to my webcam and collecting videos. When I extracted features(I'm mainly interested in Gaze angles) of videos collected using fisheye lens using FeatureExtraction command the output is totally wrong. Even tough I'm looking at the all the corners of my laptop screen in the video(fisheye) the output shows almost same gaze angles throughout the video with slight variations. I undistorted the collected fisheye videos to normal lens videos. OpenFace output for converted video also showing similar wrong output(it was showing same Gaze angles throughout the video).   \r\nBut when tested same command for same webcam video which is collected without fisheye lens(or by removing fisheye lens), the output is showing almost correct gaze angles. Is there any problem with OpenFace when using with fisheye lens or do I need to make any modifications to make OpenFace to work with Fisheye videos. Any suggestions or help would be appreciated.\r\nThanks"},"comment":{"url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace/issues/comments/367102803","html_url":"https://github.com/TadasBaltrusaitis/OpenFace/issues/347#issuecomment-367102803","issue_url":"https://api.github.com/repos/TadasBaltrusaitis/OpenFace/issues/347","id":367102803,"user":{"login":"TadasBaltrusaitis","id":7542364,"avatar_url":"https://avatars1.githubusercontent.com/u/7542364?v=4","gravatar_id":"","url":"https://api.github.com/users/TadasBaltrusaitis","html_url":"https://github.com/TadasBaltrusaitis","followers_url":"https://api.github.com/users/TadasBaltrusaitis/followers","following_url":"https://api.github.com/users/TadasBaltrusaitis/following{/other_user}","gists_url":"https://api.github.com/users/TadasBaltrusaitis/gists{/gist_id}","starred_url":"https://api.github.com/users/TadasBaltrusaitis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/TadasBaltrusaitis/subscriptions","organizations_url":"https://api.github.com/users/TadasBaltrusaitis/orgs","repos_url":"https://api.github.com/users/TadasBaltrusaitis/repos","events_url":"https://api.github.com/users/TadasBaltrusaitis/events{/privacy}","received_events_url":"https://api.github.com/users/TadasBaltrusaitis/received_events","type":"User","site_admin":false},"created_at":"2018-02-20T20:07:24Z","updated_at":"2018-02-20T20:07:24Z","author_association":"OWNER","body":"I have never tested OpenFace on a fisheye or other very wide angle lenses so do not know how well it would work, but I'm not that surprised that it fails. \r\n\r\nHow bad is the distortion? I would have suggested that you undistort the fisheye lens, but it seems you have already tried that. Have you calibrated the camera with the fisheye lens? What were the camera intrinsic parameters?"}}
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