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December 13, 2019

What animals see

Screen Shot 2019-12-11 at 8.08.04 AM

Above, a field of bluebells as seen by a human (left) and a bee (right).

From Phys.org:

Humans are now closer to seeing through the eyes of animals, thanks to an innovative software framework developed by researchers from the University of Queensland and the University of Exeter.

"Most animals have completely different visual systems to humans, so — for many species — it is unclear how they see complex visual information or color patterns in nature, and how this drives their behaviour," he said.

"The Quantitative Colour Pattern Analysis (QCPA) framework is a collection of innovative digital image processing techniques and analytical tools designed to solve this problem."

"Collectively, these tools greatly improve our ability to analyse complex visual information through the eyes of animals."

Dr. Jolyon Troscianko, the study's co-leader from the University of Exeter, said color patterns have been key to understanding many fundamental evolutionary problems, such as how animals signal to each other or hide from predators.

"We have known for many years that understanding animal vision and signalling depends on combining color and pattern information, but the available techniques were near impossible to implement without some key advances we developed for this framework."

The framework's use of digital photos means it can be used in almost any habitat — even underwater — using anything from off-the-shelf cameras to sophisticated full-spectrum imaging systems.

"You can even access most of its capabilities by using a cheap ($80 USD) smartphone to capture photos," Dr. Troscianko said.

It took four years to develop and test the technology, which included the development of an extensive interactive online platform to provide researchers, teachers and students with user-guides, tutorials and worked examples of how to use the tools.

UQ's Dr. Karen Cheney said the framework can be applied to a wide range of environmental conditions and visual systems.

"The flexibility of the framework allows researchers to investigate the color patterns and natural surroundings of a wide range of organisms, such as insects, birds, fish and flowering plants," she said.

"For example, we can now truly understand the impacts of coral bleaching for camouflaged reef creatures in a new and informative way."

"We're helping people—wherever they are—to cross the boundaries between human and animal visual perception."

"It's really a platform that anyone can build on, so we're keen to see what future breakthroughs are ahead."

More?

Your wish is my demand: read the original paper, published in the December 2, 2019 Methods in Ecology and Evolution.

December 13, 2019 at 02:01 PM | Permalink


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