Emerging Technologies

AI is being trained to recognize giraffes. Here's why 

A.I. has been used to detect and recognize unique giraffe markings.

Gail McCormick
Contributor, Futurity

“Many researchers need to identify and collect data on specific individuals in their work, for example, to estimate survival, reproduction, and movement,” says Derek Lee, associate research professor of biology at Penn State and principal scientist of the Wild Nature Institute.

“Instead of tags and other human-applied markings that could interfere with the animal’s behavior, many researchers take photographs of the animal’s unique markings. We have pattern recognition software to help analyze these photos, but the photos all have to be manually prepared for analysis. Because we often have thousands of photos to go through, this creates a serious bottleneck.”

Giraffe torso photos

Lee uses photographs as part of a large ongoing study to understand births, deaths, and the movement of more than 3,000 giraffes in East Africa. He and his team take digital photos of each animal’s unique and unchanging spot patterns to identify them throughout their lives. But before pattern recognition software can process the images to identify individuals, the research team has to manually crop each photo or delineate an area of interest.

Image: Wild Nature Institute/Penn State

Lee collaborated with scientists at Microsoft, who have provided a new image processing service to automate this essential and time-consuming process using machine-learning technology deployed on the Microsoft Azure cloud.

Using a computer algorithm for object detection, the Microsoft team trained a program to recognize giraffe torsos using existing photos that had been annotated by hand. The program was iteratively improved using an active learning process, where the system showed predicted cropping squares on new images to a human who could quickly verify or correct the results.

Have you read?

These new images then went back into the training algorithm to further update and improve the program. The resulting system identifies—with a very high accuracy—the location of giraffe torsos in images, even when the giraffe is a small portion of the image or vegetation partially blocks its torso.

“The system achieves near-perfect recognition of giraffe torsos without expensive hardware requirements like a dedicated, high-powered, graphics processing unit,” says Lee. “It is wonderful how the Azure team automated this tedious aspect of our work. It used to take us a week to process our new images after a survey, and now it is done in minutes. This system moves us closer to fully automatic animal identification from photos.”

Big data for big animals

The new system will dramatically accelerate Lee’s research on giraffe populations, which have rapidly declined across Africa due to habitat loss and illegal killing for meat.

“Giraffe are big animals, and they cover big distances, so naturally we are using big data to learn where they are doing well, where they are not, and why, so we can protect and connect the areas important to giraffe conservation,” says Lee.

This process will also be useful to researchers studying other animals with unique identifying patterns —including some wild cats, elephants, salamanders, fish, penguins, and marine mammals.

A paper describing the work appears in Ecological Informatics. Partial funding came from the Sacramento Zoo, the Columbus Zoo, the Cincinnati Zoo, Safari West, Tierpark Berlin, and the Tulsa Zoo

Don't miss any update on this topic

Create a free account and access your personalized content collection with our latest publications and analyses.

Sign up for free

License and Republishing

World Economic Forum articles may be republished in accordance with the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License, and in accordance with our Terms of Use.

The views expressed in this article are those of the author alone and not the World Economic Forum.

Stay up to date:

Digital Communications

Related topics:
Emerging TechnologiesNature and Biodiversity
Share:
The Big Picture
Explore and monitor how Digital Communications is affecting economies, industries and global issues
World Economic Forum logo

Forum Stories newsletter

Bringing you weekly curated insights and analysis on the global issues that matter.

Subscribe today

Here’s why it’s important to build long-term cryptographic resilience

Michele Mosca and Donna Dodson

December 20, 2024

How digital platforms and AI are empowering individual investors

About us

Engage with us

  • Sign in
  • Partner with us
  • Become a member
  • Sign up for our press releases
  • Subscribe to our newsletters
  • Contact us

Quick links

Language editions

Privacy Policy & Terms of Service

Sitemap

© 2024 World Economic Forum