{"action":"created","issue":{"url":"https://api.github.com/repos/opentrack/opentrack/issues/428","repository_url":"https://api.github.com/repos/opentrack/opentrack","labels_url":"https://api.github.com/repos/opentrack/opentrack/issues/428/labels{/name}","comments_url":"https://api.github.com/repos/opentrack/opentrack/issues/428/comments","events_url":"https://api.github.com/repos/opentrack/opentrack/issues/428/events","html_url":"https://github.com/opentrack/opentrack/pull/428","id":172637790,"number":428,"title":"PT: improving point extractor's precision","user":{"login":"DaMichel","id":2240628,"avatar_url":"https://avatars.githubusercontent.com/u/2240628?v=3","gravatar_id":"","url":"https://api.github.com/users/DaMichel","html_url":"https://github.com/DaMichel","followers_url":"https://api.github.com/users/DaMichel/followers","following_url":"https://api.github.com/users/DaMichel/following{/other_user}","gists_url":"https://api.github.com/users/DaMichel/gists{/gist_id}","starred_url":"https://api.github.com/users/DaMichel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DaMichel/subscriptions","organizations_url":"https://api.github.com/users/DaMichel/orgs","repos_url":"https://api.github.com/users/DaMichel/repos","events_url":"https://api.github.com/users/DaMichel/events{/privacy}","received_events_url":"https://api.github.com/users/DaMichel/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-08-23T08:14:12Z","updated_at":"2016-08-23T16:04:18Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/opentrack/opentrack/pulls/428","html_url":"https://github.com/opentrack/opentrack/pull/428","diff_url":"https://github.com/opentrack/opentrack/pull/428.diff","patch_url":"https://github.com/opentrack/opentrack/pull/428.patch"},"body":"I finally finished implementing additional mean-shift filtering of the tracked blob-centers.\r\n\r\nMore importantly, I'm now rather sure that it is actually good. See comparison video on dropbox https://www.dropbox.com/sh/38get6zoksw7bw4/AAAoHiGetDZn_KFHLbHLKV3Ra?dl=0\r\n\r\nMoreover, I guess I went a little bit over board trying different methods to improve the tracker's precision. To this end I implemented some prototypes in python. It is probably not immediately useful. But if you want to toy around with things some day, I guess this might be a solid basis.\r\nhttps://github.com/DaMichel/opentrack-prototyping/blob/master/pointextractor.py"},"comment":{"url":"https://api.github.com/repos/opentrack/opentrack/issues/comments/241784587","html_url":"https://github.com/opentrack/opentrack/pull/428#issuecomment-241784587","issue_url":"https://api.github.com/repos/opentrack/opentrack/issues/428","id":241784587,"user":{"login":"DaMichel","id":2240628,"avatar_url":"https://avatars.githubusercontent.com/u/2240628?v=3","gravatar_id":"","url":"https://api.github.com/users/DaMichel","html_url":"https://github.com/DaMichel","followers_url":"https://api.github.com/users/DaMichel/followers","following_url":"https://api.github.com/users/DaMichel/following{/other_user}","gists_url":"https://api.github.com/users/DaMichel/gists{/gist_id}","starred_url":"https://api.github.com/users/DaMichel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DaMichel/subscriptions","organizations_url":"https://api.github.com/users/DaMichel/orgs","repos_url":"https://api.github.com/users/DaMichel/repos","events_url":"https://api.github.com/users/DaMichel/events{/privacy}","received_events_url":"https://api.github.com/users/DaMichel/received_events","type":"User","site_admin":false},"created_at":"2016-08-23T16:04:18Z","updated_at":"2016-08-23T16:04:18Z","body":"Well in the videos I wore my tracking cap, obviously. So I guess I can keep my head quite still because there is a noticeable difference between my patch and original. IMO less measurement noise, not to be mistaken for head wobble noise, is good because it gives the user the option to use less filtering for faster response.\r\n\r\nWe can argue about performance though. Later ..."}}
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