Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Pieter Blignaut"'
Publikováno v:
Frontiers in Artificial Intelligence, Vol 5 (2022)
COVID-19, a deadly and highly contagious virus, caused the deaths of millions of individuals around the world. Early detection of the virus can reduce the virus transmission and fatality rate. Many deep learning (DL) based COVID-19 detection methods
Externí odkaz:
https://doaj.org/article/3b803f80beb7475b8e1482c9472c66da
Publikováno v:
IEEE Access, Vol 8, Pp 142581-142605 (2020)
Eye tracking is becoming a very important tool across many domains, including human-computer-interaction, psychology, computer vision, and medical diagnosis. Different methods have been used to tackle eye tracking, however, some of them are inaccurat
Externí odkaz:
https://doaj.org/article/1b7f1504ac554d599b9405f2a90398fd
Publikováno v:
Frontiers in Artificial Intelligence, Vol 4 (2022)
Eye tracking is becoming a very popular, useful, and important technology. Many eye tracking technologies are currently expensive and only available to large corporations. Some of them necessitate explicit personal calibration, which makes them unsui
Externí odkaz:
https://doaj.org/article/523fa753a3994e06ba950cdee04207f2
Autor:
Pieter Blignaut
Publikováno v:
Journal of Eye Movement Research, Vol 12, Iss 2 (2019)
Prior to delivery of data, eye tracker software may apply filtering to correct for noise. Although filtering produces much better precision of data, it may add to the time it takes for the reporting of gaze data to stabilise after a saccade due to th
Externí odkaz:
https://doaj.org/article/ada19ba1ff854b76a83687534e6094fa
Publikováno v:
Heliyon, Vol 5, Iss 1, Pp e01127- (2019)
Oculomotor dysfunction may originate from physical, physiological or psychological causes and may be a marker for schizophrenia or other disorders. Observational tests for oculomotor dysfunction are easy to administer, but are subjective and transien
Externí odkaz:
https://doaj.org/article/e13a960f86ae41dd983644f861f208df
Autor:
Pieter Blignaut
Publikováno v:
Journal of Eye Movement Research, Vol 11, Iss 1 (2018)
Following a patent owned by Tobii, the framerate of a CMOS camera can be increased by reducing the size of the recording window so that it fits the eyes with minimum room to spare. The position of the recording window can be dynamically adjusted with
Externí odkaz:
https://doaj.org/article/7f8a646340264dcf98d05e8845b8f5f5
Autor:
Pieter Blignaut
Publikováno v:
Journal of Eye Movement Research, Vol 10, Iss 4 (2017)
Although the 45-dots calibration routine of a previous study (Blignaut, 2016) provided very good accuracy, it requires intense mental effort and the routine proved to be unsuccessful for young children who struggle to maintain concentration. The cali
Externí odkaz:
https://doaj.org/article/04d0affeb07a4e51991c7f1a90f9bf14
Publikováno v:
Journal of Eye Movement Research, Vol 9, Iss 4 (2016)
Eye tracking is a well-established tool that is often utilised in research. There are currently many different types of eye trackers available, but they are either expensive, or provide a relatively low sampling frequency. The eye tracker presented i
Externí odkaz:
https://doaj.org/article/430084daa1c54923b74f823063aea8bc
Autor:
Pieter Blignaut
Publikováno v:
Journal of Eye Movement Research, Vol 9, Iss 3 (2016)
It is argued that polynomial expressions that are normally used for remote, video-based, low cost eye tracking systems, are not always ideal to accommodate individual differences in eye cleft, position of the eye in the socket, corneal bulge, astigma
Externí odkaz:
https://doaj.org/article/3313490195964c1eaa98047052f071d4
Autor:
Pieter Blignaut
Publikováno v:
Journal of Eye Movement Research, Vol 7, Iss 1 (2013)
In a video-based eye tracker, the normalized pupil-glint vector changes as the eyes move. Using an appropriate model, the pupil-glint vector can be mapped to gaze coordinates. Using a simple hardware configuration with one camera and one infrared sou
Externí odkaz:
https://doaj.org/article/0c9fde1012a945dfa3e947982f6fad43