Measurement of Useful Field of View in Eye and Head-Free Condition while Driving

Navigation systems are nowadays widely used for cars though it is yet to be able to say popularized for motorcycles. While motorcycle navigation systems are not popularized yet, previous research indicates motorcyclist's high demand against a useful navigation system. The absence of useful motorcycle navigation system is an issue of current products not capable of providing navigation information efficiently. To work with the issue, information presentation design is necessary to consider the motorcyclist's characterful viewpoint movement of looking at the road surface carefully in a vertical movement. As a solution to this issue, we propose the use of head-up display for information presentation. Previous studies have revealed the amount and positions suitable to present information for motorcyclist while riding, although the timing of information presentation is yet to be discussed. Thus, in this paper, the information presentation timing to provide navigation information has been evaluated. Experiment using an immersive CAVE motorcycle simulator was conducted with the configuration of five timings between 25 m to 85 m prior to the intersection under conditions of urban street with 30 km/h speed limit. Durations of motorcyclist's viewpoint movement and five scale subjective ratings were used for evaluation. The experimental results from 10 subjects showed a statistically significant difference in subjective ratings. In conclusion, suitable information presentation timing of riding in urban streets with 30 km/h speed limit is around 40 m to 55 m prior to the target intersection.

show abstract

Estimation of mental workload during automobile driving based on eye-movement measurement with a visible light camera

Chihara

Kobayashi

Sakamoto

2020

Transactions of the JSME (In Japanese)

View full text Add to dashboard Cite

The aim of this study was to investigate the effective parameters of eye movement for estimation of mental workload (MWL) during automobile driving by using a visible light camera. Twelve students (6 males and 6 females) participated in this study. The participants performed a driving task with a driving simulator and a secondary task simultaneously. The N-back task was taken as the secondary task so as to control the MWL. The levels of N-back task were as follows: none, 0-back, 1-back, 2-back, and 3-back. The gaze and head angles and blink frequency were measured with a visible light camera. The eyeball rotation angle was calculated from the gaze and head angle. The sharing rate of head movement, which is the ratio of head movement against the gaze movement, was calculated. The subjective MWL and accuracy of N-back task were also measured. The result showed that the subjective MWL monotonically increased with the increase of the difficulty of N-back task. The effect of the difficulty of N-back task was statistically significant for the standard deviations (SDs) of horizontal and vertical gaze angle, SD of horizontal eyeball rotation angle, sharing rate of head movement in horizontal direction, and blink frequency. The result of logistic regression analysis showed that the SD of horizontal eyeball rotation angle and blink frequency were the most significant parameters to estimate the MWL. The area under the curve (AUC) of receiver operating characteristic (ROC) curve for the regression equation was 0.822; thus, it has relatively high discrimination ability on the MWL.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Measurement of Useful Field of View in Eye and Head-Free Condition while Driving

Cited by 3 publications

References 5 publications

Estimation of Mental Workload during Motorcycle Operation

Estimation of Mental Workload during Motorcycle Operation

Evaluation of the information presentation timing for motorcycle head-up display

Estimation of mental workload during automobile driving based on eye-movement measurement with a visible light camera

Contact Info

Product

Resources

About