Researchers design software to detect changes in colour vision

Jun 18, 2013
Image from Ishihara test used for diagnosis and classification of changes in colour vision, such as colour blindness.

Researchers at the University of Alicante have developed new software that will interpret the vision of people affected by alterations in colour vision.

The technology, developed by the UA Research Group in Optics and , in collaboration with researchers from the Vision Group at the University of Valencia, is applicable in a variety of sectors, for example, graphic design, the toy industry, accessibility, recruitment, human resources, and the field of optometry.

Colour perception can be key in fields as diverse as science, industry and leisure. In industry, there are sectors where the control of colour reproduction is basic as well as the proper viewing by users. "We can quote, for example, the design of video games, websites, paintings, books, educational, quality control in food and manufactured goods, etc.. Also, there are many occupations where professionals must possess good , even in some cases is a given. For example, airline pilots, fire fighters, police, mechanics, and in general any profession where they work with colour codes", Professor Dolores de Fez Saiz, head of the Research Group in Optics and Visual Perception explains.

"The range of the colours perceived by a person with impaired vision in colour is smaller than in the case of a normal subject, so it may happen that different objects in a scene look the same and can not be distinguished from each other. A proper design of the original colour range can avoid these problems, because although the subject with problems in colour vision does not perceive the colours properly, they will have information to distinguish them as different and therefore belonging to different objects, "said Dolores Fez.

The software has been developed to simulate the perception of a subject with different alterations of colour vision. "For this, it is only necessary to have a or a video file and select one of the three types of colour . It also allows expert users to select different models of colour , adaptation conditions and output formats. In this way, we know if a particular scene can be interpreted correctly when viewed by the subject who has the problem, or if you lose some information", Dolores de Fez adds.

The technology has been tested in real conditions and can be customized according to the needs of the company or a particular disorder. It also can be used as a preliminary stage in the design of a product to the target customer with an alteration in colour perception to interpret correctly. Use of the software is simple and one does not need to be an expert in optics.

Explore further: Radar sensors support parking management

add to favorites email to friend print save as pdf

Related Stories

Colour vision link may help myopia research

Mar 01, 2013

(Medical Xpress)—A possible link between colour vision and the development of myopia - or near-sightedness - has been discovered by an international group, including a researcher from The University of Western Australia.

Human vision inadequate for research on bird vision

May 12, 2008

The most attractive male birds attract more females and as a result are most successful in terms of reproduction. This is the starting point of many studies looking for factors that influence sexual selection in birds. However, ...

Flexible polymer opals

May 29, 2013

A synthetic material which mimics the brightest and most vivid colours in nature, and changes colour when twisted or stretched, has been developed by researchers at the University of Cambridge, and could have important ...

Recommended for you

Florentine basilica gets high-tech physical

8 hours ago

Late last year, two University of California, San Diego students set out for Florence, Italy, to diagnose a patient that had no prior medical record, couldn't be poked or prodded in any way, and hadn't been ...

Radar sensors support parking management

9 hours ago

Siemens is researching the use of sensor networks in an advanced parking management solution that will hopefully counter the increasing parking space crisis in cities. The online magazine Pictures of the ...

SatisFactory project for more attractive factories launched

9 hours ago

Known as either "Industrial Revolution 4.0" or as "Industrial Renaissance", the need for visionary industrial approaches is widely recognized in the European Union. SatisFactory, a three-year research project funded by the ...

Life-saving train design is rarely used

Feb 25, 2015

(AP)—Nearly a decade ago, the U.S. secretary of transportation stood at the site of a horrendous commuter train crash near downtown Los Angeles and called for the adoption of a new train car design that ...

Lexus tops auto dependability survey

Feb 25, 2015

(AP)—Lexus is the most dependable car brand for the fourth consecutive year in rankings that increasingly hinge on high-tech features.

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

antialias_physorg
3 / 5 (2) Jun 18, 2013
A proper design of the original colour range can avoid these problems, because although the subject with problems in colour vision does not perceive the colours properly, they will have information to distinguish them as different

addnig a slight variation in texture also is very efficient. It won't throw off people with regular vision (as the color difference dominates easily), but will be easily visible to those with color blindness.

The software has been developed to simulate the perception of a subject with different alterations of colour vision

From this step it should be rather simple to quantify/compare the information content of a 'normal vision' image with an 'impaired vision' image (e.g. via a mutual information filter) and get a quality measure for how wel the original is designed.

It's a simple idea but rather useful.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.