• 沒有找到結果。

一、本研究使用噴墨印刷作為輸出方式,未來可嘗試以其他版式印刷進行輸出,

配合印刷柵格化處理器(Raster Image Processor, RIP)可針對各色墨量作精確控 制,由於印刷材料特性對是影響本研究隱藏效果的重要關鍵,後續可針對色 墨材料對紅外線的光學特性進行探討,期望能更進一步強化浮水印的隱藏效 果。

二、本系統除了應用於隱藏浮水印外,未來亦可以應用於擴增實境(Augmented Reality, AR)系統中辨識標籤(Marker)的製作,將辨識標籤以本研究之浮水印 系統列印輸出,就可以達到與圖形、文字整合的效果,正常光源觀看時是一 般圖文,需要偵測辨識標記時再利用紅外線攝影裝置取像(如圖 5-2),如此提 供擴增實境的辨識標記另一種呈現方式,圖5-3 為實驗初步顯示電腦可以辨

64

識本研究浮水印系統所產生之辨識標記,也表示本研究之浮水印技術應用於 擴增實境系統是可行的,然而運用到這類即時辨識的偵測系統,還有許多取 像的技術細節可以探討,以上提供給後續研究者參考之用。

(a) (b)

圖5-2、本研究系統輸出之辨識標記(a) 辨識標記於可見光下觀看;(b) 辨識 標記於紅外線下觀察。

圖5-3、經VR4MAX擴增實境軟體辨識成功產生3D物件機器人

65

參考文獻

英文部分

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[2]Y.T. Chen, and H.C. Wang, “A watermarking technique for print-and-scanned digital pictures with the modification of geometrical transformation”, 15th Conference on Computer Vision, Graphics, and Image Processing, proceedings, Shinchu, Taiwan, August 2002.

[3]C.M. Chou, W.C. Wang, H.C. Wang, “Watermarking a Holographic image on CD-R Disks”, proceedings, 2006 Conference on Computer Vision, Graphics and Image Processing, pp. 804-811, Taoyuan, Taiwan, August, 2006.

[4]R. Eschbach, “Recent Progress in Digital Halftoning”, Recent Progress in Digital Halftoning II, Reprinted from IS&T Proceedings, pp. 9-11, 1999.

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[7]D. Gruhl, and W. Bender, “Information Hiding to Foil the Casual Counterfeiter”, proceedings (Lecture Notes in Computer Science; 1525), 2nd International Workshop on information hiding, pp. 1-15, Portland, Oregon, April 1998.

[8]D.L. Hecht, “Embedded Data Glyph Technology for Hardcopy Digital Documents”, in Proc. SPIE Color Hard Copy and Graphic Arts III, pp. 341-352, 1994.

[9]M. Kiuchi, and K. Saito, “Frequency Analysis for Security Printing Lines”, SPIE

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proceedings, Conference on Optical Security and Counterfeit Deterrence Techniques V,vol.4677, pp. 110-120, 2002.

[10]H. Kipphan, “Handbook of print media: technologies and manufacturing processes”,1 edtion, Springer, New York, 2004.

[11]O. Kohei, and S. Mitsuo, “Carbon black” (United States Patent 6136286), Japan:

Mitsubish Chemical Corporation, 2000.

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[13] T. N. Pappas, Jan P. Allebach, David L. Neuhoff, “Model-Based Digital Halftoning”, IEEE Signal Processing Magazine, pp. 14-27, July 2003.

[14]G.K. Philips, “Combining Nanocharacter Printing, Digital Watermarking and UV Coded Taggents for Optimal Machine-Readable Security”, SPIE proceedings, Conference on Optical Security and Counterfeit Deterrence Techniques V,vol.4677, pp. 150-158, 2002.

[15] I.S. Reed and X. Chen, “Error-Control Coding for Data Networks”, Kluwer.

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