Author: K. M. Chen, L. L. Chen, S. T. Shen Displays 29 (2008) 33-40 Reporter: Yang Kun Ou
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Transcript of Author: K. M. Chen, L. L. Chen, S. T. Shen Displays 29 (2008) 33-40 Reporter: Yang Kun Ou
Development and comparison of a full-scale car display and
communication system by applying Augmented Reality
Author: K. M. Chen, L. L. Chen, S. T. Shen
Displays 29 (2008) 33-40
Reporter: Yang Kun Ou
PurposePurpose
First, we set out to build a design evaluation environment that combines a full-scale car display and a visual evaluation system and communication in virtual design.
The basic idea is to combine both AR and PDA techniques.
ReferenceReference
Virtual reality (VR) techniques have been applied to vehicle design many times in the past
In 1998, Purshke and his co-workers developed a more intuitive VR system for vehicle design
The designer can change the color, surface structures of the car’s interior, or any arbitrary components simply by a wave of hand
ReferenceReference
This system is established for the purpose of evaluating ergonomic considerations on the interior design of a vehicle by J. Fruend et al.
Raczynski and the others have applied AR and PDA project on Workflow (including Workflow- Editor, Workflow Server, and Workflow Viewer)
ReferenceReference
Usually through 3D Modeling or design sketches combining with texts, audio, and images to discuss the design content. But the information presented will influence the quality of communication by M.-L. Chiu
ARPDA systemARPDA system
To display the car model, the virtual prototype is converted into wrl file format and checked by AR Toolkit
The size of the virtual prototype is adjusted to reflect the real size when observed in HMD
The users may walk around to observe the virtual product, which is surrounded by environment images simultaneously sent to HMD from the camera
ARPDA systemARPDA system
There are two common scenarios for communication in the environment: • one is to discuss the design in one place with many
people• the other is to discuss the design remotely through
LAN
ARPDA systemARPDA system
ARPDA systemARPDA system
A standard PC is used as the main device for visual computing, including the composition of pictures in AR Toolkit, the exchange of information with remote machines, and database access
A PDA is used as a mobile interface device for showing the pre-rendered image, and for sending and receiving messages via wireless LAN with PC
ARPDA systemARPDA system
ARPDA systemARPDA system
ARPDA systemARPDA system
HardwareHardware
The design display/evaluation system consists of the following hardware components: • the clients are two sets of HP iPAQ H5550 series P
DA• The PC servers are two Intel(R) Xeon(TM) CPU 3.
06 GHz AT/AT COMPATIBLE with NVIDIA Quadro FX3000 computers with LAN (100 Mbit/s)
• The HMDs are two sets of SONY PLMA55 series HMD
• i-CAM VC USB Camera (MC-310)
ExperimentExperiment
We drafted four communication schemes (modes) as the design communication ways in planning the experiments• Scheme one: MSN, i.e. instant message• scheme two: the telephone communication• scheme three: Polycom video conference • Scheme four: ARPDA
ExperimentExperiment PDA operating interface
ExperimentExperiment User interface implementation
ExperimentExperiment User control using HMD and PDA
ExperimentExperiment Synchronous discussion (composite image)
ExperimentExperiment
Each test items will be tested eight times altogether in this experiment; the following Table 3 explains experiment results
Discussion and future workDiscussion and future work
we understand that traditional telephone design communication still keeps good exactness. But because of the traditional telephone design communication’s lack of display of communication material, it is more time consuming than ARPDA
Discussion and future workDiscussion and future work
The ARPDA facilitates instant 3D imaging and note taking one can record the result with least error; but 3D imaging is simulated from 2D image there can be errors under some circumstances
Discussion and future workDiscussion and future work
The present development of the 3D VR car cooperative design evaluations system is difficult to exchange 3D file in real time, because of the limitation of network bandwidth