What to expect from your remote eye-tracker when participants are unrestrained.
What to expect from your remote eye-tracker when participants are unrestrained.
复制标题
DOI：
10.3758/s13428-017-0863-0
复制
发表时间：
2018-03
影响因子：
5.4
通讯作者：
Hessels RS
中科院分区：
文献类型：
--
作者：
Niehorster DC;Cornelissen THW;Holmqvist K;Hooge ITC;Hessels RS
远程眼动仪的营销材料表明，只要参与者的眼睛位于眼动仪的前箱（可以进行跟踪的区域）内，数据质量就不会因参与者的位置和方向而变化。因此，远程眼球追踪器在市场上被宣传为可以可靠地记录无法限制的参与者群体的目光，例如婴儿、学童以及患有肌肉或大脑疾病的患者。然而，实践经验和之前的研究告诉我们，眼球追踪数据的质量，例如当参与者不受约束并在眼动仪面前采取非最佳姿势时，记录的注视位置的准确性和数据丢失量会恶化（与下巴托中训练有素的参与者相比）。那么，与不受约束的参与者一起工作的研究人员如何选择眼动仪呢？在这里，我们研究了来自 EyeTribe、SMI、SR Research 和 Tobii 的五种流行远程眼动仪在一系列任务中的表现，其中参与者采取非最佳姿势。我们报告说，测试的系统在我们的任务期间观察到的数据丢失量和系统偏移量各不相同。 EyeLink 和 EyeTribe 尤其存在很大的问题。此外，当眼动仪只能看到一只眼睛时，Tobii 眼动仪会报告两只眼睛的数据。这项研究提供了关于流行的远程眼动仪在不受限制的参与者进行记录时的表现的实用见解。它还提供了一种测试方法，用于评估跟踪器是否适合研究特定目标人群，制造商可以在开发新的眼动仪时使用该方法。
The marketing materials of remote eye-trackers suggest that data quality is invariant to the position and orientation of the participant as long as the eyes of the participant are within the eye-tracker’s headbox, the area where tracking is possible. As such, remote eye-trackers are marketed as allowing the reliable recording of gaze from participant groups that cannot be restrained, such as infants, schoolchildren and patients with muscular or brain disorders. Practical experience and previous research, however, tells us that eye-tracking data quality, e.g. the accuracy of the recorded gaze position and the amount of data loss, deteriorates (compared to well-trained participants in chinrests) when the participant is unrestrained and assumes a non-optimal pose in front of the eye-tracker. How then can researchers working with unrestrained participants choose an eye-tracker? Here we investigated the performance of five popular remote eye-trackers from EyeTribe, SMI, SR Research, and Tobii in a series of tasks where participants took on non-optimal poses. We report that the tested systems varied in the amount of data loss and systematic offsets observed during our tasks. The EyeLink and EyeTribe in particular had large problems. Furthermore, the Tobii eye-trackers reported data for two eyes when only one eye was visible to the eye-tracker. This study provides practical insight into how popular remote eye-trackers perform when recording from unrestrained participants. It furthermore provides a testing method for evaluating whether a tracker is suitable for studying a certain target population, and that manufacturers can use during the development of new eye-trackers.
登录
查看更多内容
影响因子：
2.6
作者：
Hessels, Roy S.;Andersson, Richard;Kemner, Chantal
通讯作者：
Kemner, Chantal
影响因子：
--
作者：
Pelli, DG
通讯作者：
Pelli, DG
影响因子：
5.4
作者：
Hessels, Roy S.;Cornelissen, Tim H. W.;Hooge, Ignace T. C.
通讯作者：
Hooge, Ignace T. C.
DOI：
10.3758/bf03195489
发表时间：
2002-11-01
期刊：
BEHAVIOR RESEARCH METHODS INSTRUMENTS & COMPUTERS
影响因子：
--
作者：
Cornelissen, FW;Peters, EM;Palmer, J
通讯作者：
Palmer, J
影响因子：
2.1
作者：
Oturai, Gabriella;Kolling, Thorsten;Knopf, Monika
通讯作者：
Knopf, Monika