Characterizing Drivers' Peripheral Vision via the Functional Field of View for Intelligent Driving Assistance
DOI: 10.1109/IV55152.2023.10186746
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Summary
This study investigates the shape and dynamics of the Functional Field of View (FFoV) during active driving to improve the design of intelligent driving assistance systems. Current gaze-based models often rely solely on foveal vision, ignoring the critical role of peripheral vision in maintaining situational awareness. The authors aim to characterize how the FFoV behaves during complex urban driving, specifically examining whether it exhibits spatial asymmetries and how it changes dynamically following eye movements (saccades). To address these questions, the researchers conducted two psychophysics studies using a virtual reality (VR) driving simulator equipped with eye-tracking hardware. In the primary Driving Task, ten licensed drivers navigated urban environments while performing a peripheral detection task, pressing a button when red orbs appeared in their field of view. A control Non-Driving Task involved six participants fixating on a moving cross in a virtual room while responding to similar peripheral stimuli. This design allowed for the isolation of driving-specific visual effects from general visual phenomena. The results revealed a vertically asymmetric FFoV during the driving task, characterized by an "upward inhibition" where drivers were significantly less likely to detect targets in the upper portion of their visual field compared to the lower portion. This asymmetry was statistically significant in the driving condition but absent in the non-driving condition, indicating it is task-dependent rather than a fixed biological trait. No horizontal asymmetry (left vs. right bias) was observed, contradicting some prior studies conducted in left-sided driving nations. Regarding dynamics, the study found that peripheral detection ability is inhibited immediately after a saccade. Misses were significantly more likely to occur within the first second of a new fixation, with 81.5% of misses happening within 0.5 seconds of fixation onset. However, the data did not support the hypothesis that the FFoV progressively expands during fixation; detection rates did not improve significantly at higher eccentricities as fixation duration increased. These findings have direct implications for Advanced Driver Assistance Systems (ADAS). The task-dependent vertical asymmetry suggests that assistance systems should allocate more perceptual resources or active sensing to the upper field of view, where driver attention is naturally inhibited. Furthermore, the post-saccade inhibition indicates that ADAS should increase caution levels or lower intervention thresholds during and immediately after driver eye movements, as drivers are most vulnerable to missing peripheral hazards during these brief periods. Accurately modeling these FFoV limitations can prevent redundant alerts and provide more effective, context-aware assistance.
Key finding
Drivers exhibit a vertically asymmetric, upward-inhibited Functional Field of View during active urban driving that disappears in non-driving tasks, alongside partial evidence of post-saccadic inhibition in peripheral target detection.
Methodology
simulator
Sample size: 10
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via qwen3.6_summarize on 2026-05-28 (3 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | — | — | — | 1 | 2026-05-07 |
| archive | success | canonical_url | — | — | 2 | 2026-06-03 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-07 |
| promote | success | — | — | — | 3 | 2026-06-06 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 17 | 2026-06-11 |
| verify | partial | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified_with_issues.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
- peripheral attention
- useful field of view
- eye movements scanning
- sensory abilities
- visual
- gaze based attention detection
Information type
What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).
- Empirical Findings: behavioral performance data
- Methodological Resource: tool software, measurement protocol