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Lion Conservation Benefits from Recognition Tool

Joanne's Blog

10 Aug
John African Lion at Cinti Zoo

The Lion Identification Network of Collaborators- LINC

Lion conservation is benefitting from a new recognition tool enabling researchers to identify individual lions. Members of The Tiniest Tiger community know that we support Lion Guardians. We have also supported L.I.N.C. and today on World Lion Day we were able to make another donation to this amazing project to help identify African Lions

Lipap with Lion Guardian logo
Lipap Ole Sayioki, Lion Guardian.

The Lion Identification Network of Collaborators- LINC is an innovative open source platform that allows collaboration in research and African Lion conservation across international boundaries. The accurate monitoring of lion populations and better understanding of the connectivity between them is critical to maintaining the genetic viability of increasingly isolated populations.

“Lions roam over such vast areas that no one research group can effectively study them across their entire range. Platforms like LINC enable us to work together and identify lions from photos more easily, thereby increasing the chances of picking up potential movement between populations.” 

– Stephanie Dolrenry – Co-founder of Lion Guardians

Lion Conservation Data is Shared Across Initiatives

LINC is a technology based solution that generates a rich source of information on lions across their range. This data enables lion conservation researchers to be alerted to priority areas where connection is known to be occurring. LINC employs cutting-edge methodologies for sharing data across research initiatives and included innovative features such as automated lion recognition tools.

Artificial Intelligence Technology

LINC is an innovative automated lion recognition algorithm. With the simple click of a button, hours of pouring over photographs of whisker spots can be eliminated.

The LINC Lion identification algorithms use two methods to match individual lions: 

Lion Whisker Pattern Identification

Whisker Patterns

“The first uses the lion’s whisker patterns, comparing them between individuals as if matching constellations in the night sky. This AI method is based on a modified chamfer technique. It is implemented in combination with an affine transform and iterative closest point matching to sum a mean average score of the difference between the pattern alignment of the two whisker spot images.”

Individual Lion Faces

“The second method looks at the feature groups of individual lion faces, akin to how we identify faces through reduction; even if there is a mud splatter on a friend’s face we recognize the shape of their eyes. This method leverages a fine-tuned Deep Convolutional Neural Network with Residual Inception Blocks (“Inception ResNet v2”) pretrained on ImageNet and fine-tuned on the normalized LINC datasets labelled by conservationists. This network architecture is computationally efficient as it exhibits a high accuracy to parameter count ratio and it converges quickly on the LINC dataset when fine-tuned on a pre-trained ImageNet model.

Both these AI methodologies in conjunction with the continued integration of human-centered development of the user interface, allow researchers to handle and access previously unmanageably large datasets. The LINC project is an open source model allowing a sustained development that benefits the whole conservation community.”

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Hi, I'm Joanne and I love all cats. With a Global Field Master of Zoology degree focused on big cat conservation, I like to learn and talk about big cats too. I share my habitat with Paul and we were adopted by our cats Annie, Eddie and Mercy. The Tiniest Tiger has a fierce following of cat lovers and we'd love it, if you'd join us.

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