Leafsnap: An Electronic Field Guide
For press inquiries, please email email@example.com.
Frequently Asked Questions
- How do I create an account?
- The first time you take a photo, it automatically creates an account for you, after which you can go to the options screen and change your username and/or password.
- How do I label a potential match as the correct species?
- Simply "swipe" across the result to mark it as that species.
- How do I delete an image from my collection?
- Simply "swipe" across the image on the collection page to delete it.
- Why was my leaf not recognized?
- Photos of leaves must be taken with a single leaf on a fully-white background for our automatic algorithms to find them. Also, keep in mind that the app must first send the image to our servers for processing, and so you must have a working internet connection when you press "Snap It!" No internet connection is required to browse through the rest of the field guide, however.
- When will there be an Android version of Leafsnap?
- We have one under development, but since the app is free and the work is being done by volunteers, we do not have a release date, nor a firm guess as to when this will be.
- Will there be a Blackberry/Palm/Windows Mobile/Windows/Computer version of Leafsnap?
- We are working on a volunteer basis and thus have to prioritize our efforts. Our primary goals are to expand coverage and release an Android app first. After that, we will consider additional platforms if there is sufficient demand.
- When will you have coverage of my city/region/country?
- We are working to first complete coverage of the Northeast US, then the rest of the United States, and finally the rest of the world.
- I am a botanist, ecologist, arborist, or tree expert, and would like to volunteer in future collection efforts. How can I do this?
- Please email us at firstname.lastname@example.org - we are keeping a list of those experts that have offered to volunteer, with the hope of building such a collaborative mechanism in the near future.
- I am not an expert on trees but would like to help in collecting photographs. How can I do this?
- Please email us at email@example.com - we are keeping a list of potential volunteers that could help with collecting field photographs.
Aman Agrawal improved the performance of the feature extraction code.
Guangyu Sun is investigating new leaf identification algorithms.
Peiti Li is developing the website.
Sean White lead the design and development of early tablet PC, UMPC, and mobile phone prototypes and helped with the initial design of the current iPhone app.
Ila Agrawal helped with leaf identification.
Joseph Lin helped develop the iPhone app and was one of the original Central Park Collectors.
Jacky Jacob helped develop the iPhone app.
Chun-Kang Chen is automating the backend processing pipeline.
Yi Zhang is developing the Android app.
Gaurav Agrawal explored the use of SIFT for leaf recognition.
Paul Vishayanuroj is developing the iPhone app.
Oliver Sui is developing the Android app.
Wenxin Zhu is developing the Android app.
Priyank Singh worked on improving the leaf identification algorithms.
Weikang Wan is building an automated tool for data curation.
Qi Liang helped work on the website design.
Yu-Wei Chang is developing the iPad app.
Wei An is developing the website.
Vincent Zeng worked on profiling and porting the segmentation and recognition code to the iPhone.
Steve Feiner is helping supervise the design of the user interfaces.
Neeraj Kumar is leading the software development effort.
Peter Belhumeur supervises the Columbia team.
Wei Li designed the Leaflet game and has worked on automating our image editing pipeline.
Emma Liu is developing the iPad app.
Yin Liu is developing the website.
Yu Huang is working on testing the website and API.
Vinay Kumar stress-tested the backend and worked on database management.
Jian Ma originally created the website and is working on its design.
Ivy Deliz started the iPad app, helped develop the iPhone app, and lent a hand in the design of the Leaflet game.
Daozheng Chen has worked on speeding up the recognition code.
Haibin Ling designed the original leaf recognition algorithm and participated in the development of the initial electronic field guide (EFG) prototype.
Aditya Malik is working on image segmentation for leaves.
Arijit Biswas is working on improving the leaf identification algorithms.
David Jacobs supervises the University of Maryland team.
Joao Soares is working on image segmentation for leaves.
Angjoo Kanazawa is working on improving the leaf recognition algorithm.
Ida C. Lopez is the project coordinator at Smithsonian. She also led the collection expedition into the wilds of Central Park in New York City.
Ellen Farr is the Smithsonian Botany Department computer specialist.
Rusty Russell, US Herbarium Manager, is the Smithsonian co-investigator for the project.
Daniel Grant is a long-term volunteer in the Smithsonian Botany Department. He assists with specimen and image data processing.
Ingrid Pol-Yin Lin is the Smithsonian photographer who images voucher specimens and leaves used in the project.
Norm Bourg, PhD., was the plant specimen collector for much of the project.
James Short is a long-term volunteer in the Smithsonian Botany Department. He assists with specimen and image data processing.
W. John Kress, PhD. is the Principal Investigator of the Leaf Project at the Smithsonian.
Jamie Whitacre is the Smithsonian database developer for the project.
Gorky F. Villa Muñoz is the current lead botanist for LeafSnap from Finding Species, collecting and photographing plants throughout the US.
Diego Acosta assists with processing and editing photographs, and photographs plants on special expeditions.
Yuri Huta created Finding Species'' photographic method for the high-resolution photographs in LeafSnap, and has photographed plants.
Hugo Mogollon supervises the Finding Species team, in the US and South America.
Matthew Smith has collected plants in the DC area.
Roxana Bravo has refined details in the high-resolution photographic method, and has photographed plants.
Michelle Downey collects plants in the Southeastern US and processes photographs.
Tanya Tarasova has researched flowering times, coordinated expeditions, and assisted with permits. She has provided administrative oversight.
Martin Bustamante coordinates the Finding Species photographers and solves photographic challenges.
Linda Keenan writes the Plant Profiles and has collected plants in the DC and Boston areas.
Leonel Velasquez trains the Finding Species botanical photographers. He photographs plants for LeafSnap on special expeditions.
Michael Honsaker has provided technology support and maintained photographic metadata.
Margot S. Bass coordinates the Finding Species LeafSnap US team, and conceived of the standardized high-resolution plant photographs.
Bejat McCracken is the current lead US photographer for LeafSnap from Finding Species and selects high-resolution photographs.
- The Leafsnap team extends many thanks to the gardens, parks and arboreta which gave us the opportunities to photograph and gather data for the Leafsnap app.
- Adkins Arboretum, Ridgely, MD
- The Arnold Arboretum of Harvard University, Boston, MA
- Brookside Gardens, Wheaton, MD
- Central Park Conservancy, New York City, NY
- The City of Takoma Park, MD
- The City of New York, NY
- Chesapeake and Ohio Canal National Historic Park, National Park Service, DC, MD and WV
- George Washington National Forest, U.S. Forest Service, Millboro, VA
- Houston Arboretum and Nature Center, Houston, TX
- Mercer Arboretum & Botanic Garden, Humble, TX
- Montgomery County Department of Parks, Silver Spring, MD
- Smithsonian National Zoological Park, Washington, DC
- Old City Cemetery, Lynchburg, VA
- Rock Creek Park, National Park Service, DC
- San Antonio Botanical Gardens, San Antonio, TX
- The Scott Arboretum of Swarthmore College, Swarthmore, PA
- The State Arboretum of Virginia (Orland E. White Arboretum) and Blandy Experimental Farm, Boyce VA
- Stephen F. Austin Mast Arboretum at Stephen F. Austin University, Nacogdoches, TX
- Smithsonian Conservation Biology Institute, Front Royal, VA
- United States National Arboretum, Washington, DC
- Our sincere appreciation to the following individuals who have facilitated use of their garden, park or arboretum collections and supported the team in gathering data for Leafsnap.
- Ellie Altman, Edward Sibley Barnard, Jane and George Bass, Scott Bell, Carole Bergmann, Todd Bolton, Norman Bourg, Ph.D., Matthew Brown, Andrew Bunting, Neil Calvanese, David Carr, Nancy Cowden, PhD., Charlie Davis, Ted Delaney, Michael S. Dosmann, Ph.D., Geoffrey Fenner, Doug Gill, Ph.D., Sarah Hill, Jack Kyte, Richard Lieberman, Cheryl A. Lindeman, Ed.D., Rhoda Maurer, Shawn McCracken, PhD, Phil Normandy, Janice Owens, Kathryn Reshetiloff, Kathryn Richardson, T'ai Roulston, and Kevin Tunison.