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Recognising 'leaves' of a tree

April 4, 2014 - 12:52am #1



I write in the capacity of a business manager. I haven't downloaded the SDK yet.


I have seen the stone pebbles as well as the book example online. I would appreciate if the forum leads could opinionate on Vuforia's capability vis-a-vis recognising tree 'leaves'.  Each leaf is characterised by shape, size, vein framework, etc. 


Could I hope that my app can secure "reco events" with the camera aimed at tree leaves?


Look forward to your prompt response.


Best regards,


Recognising 'leaves' of a tree

April 5, 2014 - 6:06am #4

Nice. If you find something interesting with your experiments on leaf recognition, feel free to post back here.



Recognising 'leaves' of a tree

April 4, 2014 - 11:23am #3

Appreciate the prompt response, Alessandro.


Concerns 1-3, 8 are addressable.


With regards to the remaining four concerns, I'd draw your attention - for the benefit of this forum's visitors - to Leafsnap at http://leafsnap.com/


As you suggested, some experiments are in order.




Recognising 'leaves' of a tree

April 4, 2014 - 1:02am #2


recognizing tree leaves sounds like a challenging case, primarily because:

- you would need to take a picture or make a scan of a certain nuber of real leaves

- you should then upload each leaf image to the Cloud so to create an Image Target in a Cloud DB

- the above already implies that you would know in advance what leaves you are going to want to detect (i.e. you would need a set of pre-define leaves, not just any generic leaf on any tree)

- also, depending on the type of leaf, the amount of details on the leaf surface might be insufficient for detection (for example, a uniformly colored green leaf would not work)

- the shape (borders) of the leaves would not help

- the leaves are generally not flat (or not perfectly flat), which would possibly make detection even harder (assumption is that Cloud image targets should be flat)

- in addition, the highly varying and uncontrolled lighting conditions of an outdoor environemnt would pose additional challenges

- finally, the leaves in a tree might occlude each other from the camer point of view


So, nothing prevents you from making some experiments with this, but this is not really the intended use case for Vuforia Cloud Reco (as of today at least).


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