跳到主要內容

臺灣博碩士論文加值系統

(44.220.62.183) 您好!臺灣時間:2024/02/29 03:23
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

: 
twitterline
研究生:蕭刷琛
研究生(外文):Shua-Shen Hsiao
論文名稱:有效率且實用性高的影像動態範圍壓縮演算法
論文名稱(外文):An Efficient and Effective Algorithm of Image Dynamic Range Compression
指導教授:戴顯權戴顯權引用關係
指導教授(外文):Shen-Chuan Tai
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系碩博士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:英文
論文頁數:47
中文關鍵詞:動態範圍壓縮高變動範圍影像
外文關鍵詞:High dynamic range imageDynamic Range Compression
相關次數:
  • 被引用被引用:1
  • 點閱點閱:301
  • 評分評分:
  • 下載下載:33
  • 收藏至我的研究室書目清單書目收藏:2
  此論文包含一個用在可顯示高變動範圍影像的有效率且實用性高的影像動態範圍壓縮算法。最近的研究中如何顯示高變動範圍影像(High Dynamic Range Image)在是一門很重要的題目,因為這種影像可以顯示出比一般影像格式更接近人眼所察覺的反應。高變動範圍影像(真實拍攝或虛擬合成的)有著比一般顯示設備( 監視器、印表機)更高的動態範圍。因此要顯示出所有影像中的資訊就需要一個動態範圍壓縮方法並且這個方法要兼顧人類視覺上的反應。
  我們提出了一個簡單且有效率的方法來得到影像中的照度,並由照度再求得影像中的反射度。我們的目的是在照度的部分用一個 有效率的動態範圍壓縮來降低動態範圍,並保留住反射度來維持影像的視覺反應,最後要維持色彩上的一致性,我們還提供了一個色彩回復的方法,實驗結果顯示我們提出的方法有不錯的效果。
  This Thesis presents an efficient and effective algorithm for image processing used in high dynamic range (HDR) images display. How to display high dynamic range image on a low dynamic range display device is recently been discussed in previous literatures. High dynamic range images, real or synthetic, typically have luminance with much higher than that of standard output devices, e.g. monitor and printer. Therefore we need a range compression method in order to visualize all the information in the scene, and to produce images that are perceptually accurate.
  We present a simple and efficient method for the high dynamic range images to extract illumination from the original image, and to derive distribution of the reflectance. The goal is to perform a simple range compression function on the illumination part while preserving the details to maintain natural appearance. And for color consistency, a color restoration function is applied to the dynamic range compressed image.
Chapter 1 Introduction 1
Chapter 2 Background & Related Work 3
2.1 High Dynamic Range Image 3
2.2 Dynamic Range Compression 4
2.3 Tone Mapping Algorithm 6
2.4 Recent works on Dynamic Range Compression 8
2.4.1 Globe operators 8
2.4.2 Local operators 10
2.5 Artifacts 16
Chapter 3 Proposed Algorithm 18
3.1 Overview 18
3.2 Basic structure 18
3.3 Illumination and Reflectance extraction 19
3.3.1 Penalty function with level dependency 21
3.4 Illumination reduction 24
3.4.1 Gamma correction 24
3.4.2 S-Shaped function 25
3.5 color restoration 26
3.6 The proposed framework and flowchart 27

Chapter 4 Simulation Results
4.1 Parameters setting of implementation 28
4.2 Simulation results of dynamic range compression 30
4.3 Comparison 34
4.4 LDR image enhancement 37
4.5 Other HDR image experimental Results 40
4.6 Algorithm on YCbCr Domain 42

Chapter 5 Conclusion and Future Work 43
[1] A. Oppenheim, R. Schafer, and T. Stockham. “Nonlinear filtering of multiplied and convolved signals,” In Proceeding of the IEEE, volume 56, pages 1264-1291, August 1968.
[2] D. J. Jobson, Z. Rahman, and G. A. Woodell, “A Multi-Scale Retinex for bridging the gap Between color images and the human observation of scenes,” IEEE Transactions on Image Processing: Special Issue on Color Processing, July 1997
[3] D. J. Jobson, Z. Rahman, and G. A. Woodell, “Retinex processing for automatic image enhancement,” Human Vision and Electronic Imaging VII, SPIE Symposium on Electronic Imaging, Porc. SPIE 4662, (2002).
[4] Debevec, P. E., and Malik, J. “Recovering high dynamic range images,” in proceeding of the SPIE: Image Sensors, Vol. 3965,392-401, 1997.
[5] Fredo Durand and Juile Dorsey. “Fast bilteral filtering for the display of high dynamic range image,” in John Hughes, editor, SIGGRAPH2002 conference Proceedings, Annual Conference Series, pages 257-265. ACM Press/ACM SIGGRAPH 2002.
[6] Greg Ward. “A contrast-based scalefactor for luminsnce displsy,” in Paul Heckbert, editor, Grsphics Gems IV, pages 415-421. Academic Press, Boston, 1994
[7] Gregory Ward Larson, Holly Rushmeier, and Christine Piatko. “A visibilty matching tone reproduction opreator for high dynamic range scenes,” IEEE Transcation on Visualization and Computer Graphics, 3(4):291-306, 1997
[8] H. Wallah. “Brightness constancy and the nature of achromatic colors,” Journal of Experimental Psychology, 38:310-324, 1948.

[9] H. R. Blackwell. “An analytical model for describing the influence of lighting parameters upon visual performance,” volume 1: Technical Foundations. Commission Internation De L' Eclairage, 1981.
[10] Jack Tumblin and Greg Turk. “Lcis: A boundary hierarchy for detail-preserving contrast reduction,” in Proceedings of SIGGRAPH 99, Computer Graphics Proceedings, Annual Conference Series, pages 83–90, Los Angeles, California, August 1999. ACM SIGGRAPH / Addison Wesley Longman. ISBN 0-20148-560-5.
[11] Jack Tumblin and H. Rushmeier. “Tone reproduction for computer generated images,” IEEE Computer Graphics and Applications, 13(6):42–48, November 1993.
[12] James A. Ferwerda, Sumant N. Pattanaik, Peter Shirley, and Donald P. Greenberg. “An adaptation model for realistic image sysnthesis,” in SIGGRAPH 96 Proceeding, pages 249-258.
[13] Land, Edwin, “An alternative technique for the computation of the designator in the retinex theory of color vision,” Proc. of the National Academy of Science USA, 83, 2078-3080, May 1986.
[14] Pattanaik, S. N., and Yee, H. “Adpative gain control for high dynamic range image display,” in Proceedings of Spring Conference in Computer Graphic (SCCG2002), Budnerice, Slovak Republic, April 24-27, 2002
[15] R. Shpaley and C. Enroth-Cugell. “Visual adaptation and retinal gain-controls,” Progress in Reintal and Eye Rsesearch, 3:263-346, 1984.
[16] Raanan Fattal, Dani Lischinski, and Micheal Werman. “Gradient domain high dynamic range compression,” in Proceedings of ACM SIGGRAPH 2002, Computer Graphics Proceedings, Annual Conference Series. ACM Press / ACM SIGGRAPH, July 2002.

[17] Reihard, E., Stark, M., Shirley, P., and Ferwerda, J. “Photographic tone reproduction for digital images,” in Proceedings of SIGGRAPH02, pp.267-276, 2002.
[18] Schlick, C. “Quantization techniques for visualization of high dynamic range pictures,” in Proceeding of 5th Eurographics Workshop, June 1994, pp.7-20, 1994
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top