{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Phone app identifies tree species' data-url='/boclips/videos/5c54bba2d8eafeecae12684c' data-video-url='/boclips/videos/5c54bba2d8eafeecae12684c' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nPhone app identifies tree species\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eAP TelevisionWashington - 28 April, 20111. Various of leaves on trees in Rock Creek Park2. Exterior of Smithsonian Institution3. Close up, sign of National Museum of Natural History4. Various close ups of leaf specimens at Smithsonian...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eAP Television\u003cbr/\u003eWashington - 28 April, 2011\u003cbr/\u003e1. Various of leaves on trees in Rock Creek Park\u003cbr/\u003e2. Exterior of Smithsonian Institution\u003cbr/\u003e3. Close up, sign of National Museum of Natural History\u003cbr/\u003e4. Various close ups of leaf specimens at Smithsonian Institution\u003cbr/\u003e5. Research botanist at Smithsonian's National Museum of Natural History, John Kress\u003cbr/\u003e6. SOUNDBITE (English) John Kress, Research botanist at Smithsonian's National Museum of Natural History :\u003cbr/\u003e\"I take a picture of the leaf and now what it's doing, it's calculating the shape of the leaf with this algorithm that the computer scientists at Columbia University and the University of Maryland figured out.  And that was the tough part of this. How do we actually turn a photograph of a leaf into something, into a number really, that we can compare to all these other leaf shapes we have in the library?\" \u003cbr/\u003e7. Close up of phone screen as Kress scrolls through tree field guide details\u003cbr/\u003e8. SOUNDBITE (English) John Kress, Research botanist at Smithsonian's National Museum of Natural History :\u003cbr/\u003e\"The plan is to first expand this to include all the trees of the Northeast U.S., and we're doing that right now. We have people out taking images of leaves, as we speak. So you'll be able to identify a leaf from Maine down to Virginia over to the Mississippi River.\"\u003cbr/\u003e9. Close up of phone screen showing tree field guide details\u003cbr/\u003e10. Pan along trees of National Mall to reveal Smithsonian Castle building\u003cbr/\u003e11. Various of trees lining National Mall, where the phone app can be used, along with Rock Creek Park and New York's Central Park\u003cbr/\u003e12. SOUNDBITE (English) John Kress, Research botanist at Smithsonian's National Museum of Natural History : \u003cbr/\u003e\"What we're doing is using the shape of the leaf and the margins of the leaf, whether it's a margin like an oak that's very pointy or a maple that has these kind of relatively broad lobes, it uses that shape to identify the plant.\"\u003cbr/\u003e13. Close up of phone screen \u003cbr/\u003eIf you've ever wondered what type of tree is nearby but didn't have a guide book, finding the answer is now as easy as a taking a photograph.\u003cbr/\u003eThe mobile phone app, called Leafsnap, instantly searches a growing library of leaf images amassed by the Smithsonian Institution and lets you know exactly which tree you are looking for.\u003cbr/\u003eScientists are introducing the first mobile phone app to help people identify plants by simply photographing a leaf. \u003cbr/\u003eJohn Kress is a research botanist at Smithsonian's National Museum of Natural History.\u003cbr/\u003eHe says the app works out what type of tree the leaf is from based on a series of calculations.\u003cbr/\u003e\"I take a picture of the leaf and now what it's doing, it's calculating the shape of the leaf with this algorithm that the computer scientists at Columbia University and the University of Maryland figured out, and that was the tough part of this. How do we actually turn a photograph of a leaf into something, into a number really that we can compare to all these other leaf shapes we have in the library?\" \u003cbr/\u003eThe database covers trees in New York's Central Park and Washington's Rock Creek Park. \u003cbr/\u003eSoon it will cover all the northeast states of the USA and most of North America. \u003cbr/\u003eKress says they have only just begun photographing leaves in some parts of the USA.\u003cbr/\u003e\"The plan is to first expand this to include all the trees of the Northeast U.S., and we're doing that right now. We have people out taking images of leaves as we speak. So you'll be able to identify a leaf from Maine down to Virginia over to the Mississippi River. The big goal is to do all the trees of North America.\"\u003cbr/\u003eThe free app has been unveiled by its creators at Columbia University, the University of Maryland and the Smithsonian. \u003cbr/\u003eKress says finding out about the identity of the tree is all in the shape of the leaf.\u003cbr/\u003e\"What we're doing is using the shape of the leaf and the margins of the leaf, whether it's a margin like an oak that's very pointy, or a maple that has these kind of relatively broad lobes, it uses that shape to identify the plant.\"\u003cbr/\u003eThe project was funded by a 2.3 (m) million US dollar grant from the National Science Foundation.\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead 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