Using laser projectors for augmented reality

Schwerdtfeger, Björn; Pustka, Daniel; Hofhauser, Andreas; Klinker, Gudrun

doi:10.1145/1450579.1450608

Cited by 49 publications

(22 citation statements)

References 10 publications

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“…Two ways have been proposed to do this. One is with a specialised welding gun [14] and the other is with laser projectors [24,27]. In both the cases, the AR interaction is limited to single user, is quite expensive and can pose as a safety hazard in the plant.…”

Section: Prior Workmentioning

confidence: 99%

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Use of projector based augmented reality to improve manual spot-welding precision and accuracy for automotive manufacturing

Doshi

Smith

Thomas

et al. 2016

Int J Adv Manuf Technol

117

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This paper presents the use of a projector-based spatial augmented reality system in an industrial quality assurance setting to highlight spot-weld locations on vehicle panels for manual welding operators. The aim of this work is to improve the precision and accuracy of manual spot-weld placements with the aid of visual cues as a proactive step by the automotive manufacturer to enhance product quality. The prototype system was deployed at General Motors (GM) Holden plant in Elizabeth, Australia on the production line building Holden Cruze vehicles. Production trials were conducted and techniques developed to analyse and validate the precision and accuracy of spot-welds both with and without the visual cues. A reduction of 52 % of the standard deviation of manual spot-weld placement was observed when using augmented reality visual cues. The average standard deviation with-AR assistance (19 panels and 114 spot-welds) was calculated at 1.94 mm compared to without-AR (45 panels and 270 spot-welds) at 4.08 mm. All welds were within the required specification and panels evaluated in this study were used as the final product made available to consumers. The visual cues enabled operators to spot-weld at a higher degree of precision and accuracy.

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Section: Prior Workmentioning

confidence: 99%

“…Although a wearable device such as used in [27] would have a number of advantages, a wearable system was impractical for use on this production line (especially with large surface area of the panel) and could lead to slower production turnover.…”

Section: Human Requirementsmentioning

confidence: 99%

Use of projector based augmented reality to improve manual spot-welding precision and accuracy for automotive manufacturing

Doshi

Smith

Thomas

et al. 2016

Int J Adv Manuf Technol

117

View full text Add to dashboard Cite

show abstract

“…The Bonfire system was used to show that merely projecting a static pictorial guide (for say a paper cutout shape) onto a desk can be more effective than displaying it on a screen. Schwerdtfeger et al (2008) also described a helmet mounted laser projector for task guidance, and Zhou et al (2011) described a similar, but room mounted, system specifically for welding inspection. Like iLamps and Bonfire, these were also used to display only pre-authored guidance cues.…”

Section: Projected Guidancementioning

confidence: 99%

Using Projected Light for Mobile Remote Guidance

Adcock

Gunn

2015

Comput Supported Coop Work

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A worker performing a physical task may need to ask for advice and guidance from an expert. This can be a problem if the expert is in some distant location. In this paper, we describe a system which allows the expert to see the workplace from the worker's point of view, and to draw annotations directly into that workplace using a pico-projector. Since the system can be worn by the worker, these projected annotations may move with the worker's movements. We describe a method for sticking these annotations to the original positions thereby compensating for the movement of the worker. We call this 'StickyLight'. We conducted a user study to evaluate the performance and user preference for the system in 'sticky' and freehand ('non-sticky') modes. We also compared the system on two platforms: helmet mounted and tripod mounted. Results indicate that freehand conditions took less time than sticky, and that tripod conditions took less time than helmet. However, participants reported preferences for sticky over non-sticky, likely due to the relative discomfort of keeping the helmet steady. This echoes the findings of several recent similar investigations..

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“…Stationary laser pointers have also been explored as an alternative to HMD for Augmented Reality applications [9] but our study is the first attempt to develop and evaluate a wearable laser pointer as an alternative to HMD for remote collaboration.…”

Section: Related Workmentioning

confidence: 99%

Wearable laser pointer versus head-mounted display for tele-guidance applications?

Jalaliniya

Pederson

Houben

2014

Proceedings of the 2014 ACM International Symposium on Wearable Computers: Adjunct Program

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Wearable camera and display technology allow remote collaborators to guide activities performed by human agents located elsewhere. This kind of technology augments the range of human perception and actuation. In this paper we quantitatively determine if wearable laser pointers are viable alternatives to Head-Mounted Displays for indicating where in the physical environment the local agent should direct her/his attention. The potential benefit of the laser pointer would be reduced eye fatigue, due to the fact that the documented refocusing challenges associated with HMD use would be completely eliminated. 10 participants where asked to perform a short tele-guided pick-and drop task using both approaches. The quantitative analysis indicates that user performance in the laser pointer condition is higher than the HMD approach (P = .064, α = 0.1). While all 10 participants found the task easy in both conditions, 8 of 10 participants found the laser pointer system more convenient.

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Using laser projectors for augmented reality

Cited by 49 publications

References 10 publications

Use of projector based augmented reality to improve manual spot-welding precision and accuracy for automotive manufacturing

Use of projector based augmented reality to improve manual spot-welding precision and accuracy for automotive manufacturing

Using Projected Light for Mobile Remote Guidance

Wearable laser pointer versus head-mounted display for tele-guidance applications?

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