Publication statistics

Pub. period:2004-2012
Pub. count:4
Number of co-authors:7


Number of publications with 3 favourite co-authors:

M. Stella Atkins:
Xianta Jiang:
Geoffrey Tien:



Productive colleagues

Bin Zheng's 3 most productive colleagues in number of publications:

Shahram Payandeh:19
M. Stella Atkins:14
Christine L. MacKe..:13

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Bin Zheng


Publications by Bin Zheng (bibliography)

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Tien, Geoffrey, Atkins, M. Stella and Zheng, Bin (2012): Measuring gaze overlap on videos between multiple observers. In: Proceedings of the 2012 Symposium on Eye Tracking Research & Applications 2012. pp. 309-312.

For gaze-based training in surgery to be meaningful, the similarity between a trainee's gaze and an expert's gaze during performance of surgical tasks must be assessed. As it is difficult to record two people's gaze simultaneously, we produced task videos made by experts, and measured the amount of overlap between the gaze path of the expert surgeon and third-party observers while watching the videos. For this investigation, we developed a new, simple method for displaying and summarizing the proportion of time during which two observers' points of gaze on a common stimulus were separated by no more than a specified visual angle. In a study of single-observer self-review and multiple-observer initial view of a laparoscopic training task, we predicted that self-review would produce the highest overlap. We found relatively low overlap between watchers and the task performer; even operators with detailed task knowledge produce low overlap when watching their own videos. Conversely, there was a high overlap among all watchers. Results indicate that it may be insufficient to improve trainees' eye-hand coordination by just watching a video. Gaze training will need to be integrated with other teaching methods to be effective.

© All rights reserved Tien et al. and/or ACM Press

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Atkins, M. Stella, Jiang, Xianta, Tien, Geoffrey and Zheng, Bin (2012): Saccadic delays on targets while watching videos. In: Proceedings of the 2012 Symposium on Eye Tracking Research & Applications 2012. pp. 405-408.

To observe whether there is a difference in eye gaze between doing a task, and watching a video of the task, we recorded the gaze of 17 subjects performing a simple surgical eye-hand coordination task. We also recorded eye gaze of the same subjects later while they were watching videos of their performance. We divided the task into 9 or more sub-tasks, each of which involved a large hand movement to a new target location. We analyzed the videos manually and located the video frame for each sub-task where the operator's saccadic movement began, and the frame where the watcher's eye movement began. We found a consistent delay of about 600 ms between initial eye movement when doing the task, and initial eye movement when watching the task, observed in 96.3% of the sub-tasks. For the first time, we have quantified the differences between doing and watching a manual task. This will help develop gaze-based training strategies for manual tasks.

© All rights reserved Atkins et al. and/or ACM Press

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Zheng, Bin and MacKenzie, Christine L. (2009): A Comparison of Human Performance in Grasping Virtual Objects by Hand and with Tools of Different Length Ratios. In: Proceedings of the Human Factors and Ergonomics Society 53rd Annual Meeting 2009. pp. 1156-1160.

Tool use brings challenges to human movement control. Mental calibrations are constantly needed to incorporate tool properties into the movement system. This project examines the accuracy of mental calibrations and studies the impact of tool use on the movement control. Eight university students were instructed to perform a matching task using a hand-held grasper. The grasper had a changeable hinge that alters the length ratios of the tool for different trials. Throughout the matching, visual feedback regarding the hand position and tool was not available. The matching accuracy was significantly reduced when using the grasper compared to using the hand directly. This indicates that the mental calibration is not as accurate as visual or proprioception for guiding movement. No significant matching difference was observed as a function of length ratios of the grasper, suggesting similar steps were involved in the mental calibration process for one kind of tool property.

© All rights reserved Zheng and MacKenzie and/or their publisher

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Kuang, Alex B., Payandeh, Shahram, Zheng, Bin, Henigman, Frank and MacKenzie, Christine L. (2004): Assembling Virtual Fixtures for Guidance in Training Environments. In: HAPTICS 2004 - 12th International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems 27-28 March, 2004, Chicago, IL, USA. pp. 367-374.

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