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使用QR CODE二維條碼實現多重標籤擴增實境技術Applying QR code to implementing Multi-marker

Argument Reality

洪得翔Advisor: Shing-Min Liu

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Introduction

internetUsing QR-AR…

?

Traditional AR …

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Introduction (cont)

QR碼資料容量數字 最多 7,089字元字母 最多 4,296字元二進位數（ 8 bit）

最多 2,953 位元組

日文漢字／片假名 最多 1,817字元（採用 Shift JIS）

中文漢字 最多 984字元（採用 UTF-8）

中文漢字最多 1,800字元（採用 BIG5）數字

http://www.cs.ccu.edu.tw/~hth96u/mqomod.zip

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Objective Advertisement provider can change the

module on the web server

Replace traditional AR marker by QR code

Applying multi-marker with QR code

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Processing

Decoding…

http://.......

internet

Specify if the QR marker

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Replacing AR marker by QR marker． Change the pattern． Rotation of marker． Points recognizing

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Changing the pattern

Past pattern New pattern

Three bull-eyes set the QR marker

Calculate the 4th virtual point and get the Transform Matrix

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Rotation of marker QR code has 4 rotation types

If we want to calculate the following code translate matrix, We must know its “4 bull-eyes’ positions” & “rotation types”

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Points recognizing

P1P2

P3P3 y-axis>p2 y-axis

P1 x-axis>p3 x-axisP1 y-axis<p3 yaxis

Find the smallest dot value

(0,0) X(+)

Y(+)

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Points’ order & rotation DEMO

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Decoding and loading the module． Single & multi-marker processing． Image decoding． Loading the modules

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Processing

Capture decoding Download

the modelGroup

patternsImage

division

Swap buffer

Single or

multi marker

?

Single marker

multi

Exception

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Multi marker processing Group

patternsX軸 (+)

Y軸 (+)

(0,0)X軸 (+)

Y軸 (+)

(0,0)

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Multi marker processing (cont)

Image division

Capture ImageDivision part

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Image DecodingAvailable image No available image

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Change the module on the internet

FTP server

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Results

http://www.cs.ccu.edu.tw/~hth96u/mqomod.zip http://0rz.tw/gbyCt

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Demo-Single marker

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Demo-Multi-marker

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Fighting!!

Conclusion

AR visiting card

QR-AR card

Interactive AR online game

Hello, I’m XXX …JISJKLAJSDKLJKPAKSJDKLSJADKL

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Reverence 1. Jiun-Tung Wang, “Design and Implementation of

Argumented Reality System Collaborating with QR code”

2. Tai-Wei Kan, Chin-Hung Teng, Wen-Shou Chou, “Applying QR code in augmented reality applications”

3. Zxing - Multi-format 1D/2D barcode image processing library, http://code.google.com/p/zxing/

4. ARToolKit Documentation, http://artoolkit.sourceforge.net/apidoc/index.html

5. OpenCV wiki, http://opencv.willowgarage.com/wiki/