{"action":"closed","issue":{"url":"https://api.github.com/repos/apple/turicreate/issues/148","repository_url":"https://api.github.com/repos/apple/turicreate","labels_url":"https://api.github.com/repos/apple/turicreate/issues/148/labels{/name}","comments_url":"https://api.github.com/repos/apple/turicreate/issues/148/comments","events_url":"https://api.github.com/repos/apple/turicreate/issues/148/events","html_url":"https://github.com/apple/turicreate/issues/148","id":285227941,"node_id":"MDU6SXNzdWUyODUyMjc5NDE=","number":148,"title":"Should I expect object detection on iPhone to be as good as using Turi Create on Mac?","user":{"login":"dmcgloin","id":457139,"node_id":"MDQ6VXNlcjQ1NzEzOQ==","avatar_url":"https://avatars0.githubusercontent.com/u/457139?v=4","gravatar_id":"","url":"https://api.github.com/users/dmcgloin","html_url":"https://github.com/dmcgloin","followers_url":"https://api.github.com/users/dmcgloin/followers","following_url":"https://api.github.com/users/dmcgloin/following{/other_user}","gists_url":"https://api.github.com/users/dmcgloin/gists{/gist_id}","starred_url":"https://api.github.com/users/dmcgloin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dmcgloin/subscriptions","organizations_url":"https://api.github.com/users/dmcgloin/orgs","repos_url":"https://api.github.com/users/dmcgloin/repos","events_url":"https://api.github.com/users/dmcgloin/events{/privacy}","received_events_url":"https://api.github.com/users/dmcgloin/received_events","type":"User","site_admin":false},"labels":[{"id":962930602,"node_id":"MDU6TGFiZWw5NjI5MzA2MDI=","url":"https://api.github.com/repos/apple/turicreate/labels/object%20detection","name":"object detection","color":"bf251a","default":false},{"id":766077336,"node_id":"MDU6TGFiZWw3NjYwNzczMzY=","url":"https://api.github.com/repos/apple/turicreate/labels/question","name":"question","color":"cc317c","default":true}],"state":"closed","locked":false,"assignee":{"login":"gustavla","id":902935,"node_id":"MDQ6VXNlcjkwMjkzNQ==","avatar_url":"https://avatars1.githubusercontent.com/u/902935?v=4","gravatar_id":"","url":"https://api.github.com/users/gustavla","html_url":"https://github.com/gustavla","followers_url":"https://api.github.com/users/gustavla/followers","following_url":"https://api.github.com/users/gustavla/following{/other_user}","gists_url":"https://api.github.com/users/gustavla/gists{/gist_id}","starred_url":"https://api.github.com/users/gustavla/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gustavla/subscriptions","organizations_url":"https://api.github.com/users/gustavla/orgs","repos_url":"https://api.github.com/users/gustavla/repos","events_url":"https://api.github.com/users/gustavla/events{/privacy}","received_events_url":"https://api.github.com/users/gustavla/received_events","type":"User","site_admin":false},"assignees":[{"login":"gustavla","id":902935,"node_id":"MDQ6VXNlcjkwMjkzNQ==","avatar_url":"https://avatars1.githubusercontent.com/u/902935?v=4","gravatar_id":"","url":"https://api.github.com/users/gustavla","html_url":"https://github.com/gustavla","followers_url":"https://api.github.com/users/gustavla/followers","following_url":"https://api.github.com/users/gustavla/following{/other_user}","gists_url":"https://api.github.com/users/gustavla/gists{/gist_id}","starred_url":"https://api.github.com/users/gustavla/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gustavla/subscriptions","organizations_url":"https://api.github.com/users/gustavla/orgs","repos_url":"https://api.github.com/users/gustavla/repos","events_url":"https://api.github.com/users/gustavla/events{/privacy}","received_events_url":"https://api.github.com/users/gustavla/received_events","type":"User","site_admin":false}],"milestone":null,"comments":8,"created_at":"2017-12-30T22:38:17Z","updated_at":"2018-08-08T00:55:35Z","closed_at":"2018-08-08T00:55:35Z","author_association":"NONE","body":"I've gone through the Object Detection tutorial here:\r\n\r\nhttps://github.com/apple/turicreate/blob/master/userguide/object_detection/introduction.md\r\n\r\n...and created my own inventory of images (100+ jpgs) to train to recognize a particular object. After a lot of struggling with docs, python learning (including switching between multiple Python environments), etc., I finally was able to generate several object detection predictions that I can visualize in the Turi Create visualizer.\r\n\r\nI was very surprised that this worked at all (especially given the object I was trying to recognize).  I got several predictions with very good confidence levels.  **This is awesome stuff!!!**\r\n\r\nHowever, after exporting the model to CoreML and embedding in a sample app using the same test images, I don't seem to get prediction results with the same high quality - either on the iOS Simulator or an actual iPhone X. The prediction results are OK, but definitely not as good as when run on the Mac. The prediction bounding boxes are not matching the location as well as on the Mac.\r\n\r\nI'm using the Swift code in the 'Advanced Usage' tutorial here:\r\n\r\nhttps://github.com/apple/turicreate/blob/master/userguide/object_detection/advanced-usage.md\r\n\r\n...to calculate the \"best prediction\" using the non-maximum suppression example function, etc.\r\n\r\nSo, without going deep on what exactly could be wrong in my particular setup, I have some basic questions:\r\n\r\nShould I expect similar results when run in iOS? Do I need to increase my training image set to a larger number, run more iterations, something else?\r\n\r\nthanks in advance\r\n\r\nAny info is appreciated."}}
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