“zDOF: a fast, physically accurate algorithm for simulating depth-of-field effects in synthetic images using z-buffers” by Budin

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Title:

    zDOF: a fast, physically accurate algorithm for simulating depth-of-field effects in synthetic images using z-buffers

Session/Category Title:   Rendering


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Abstract:


    The author presents a two-step image processing technique for accurately simulating depth-of-field and focus effects familiar from practical photography. Step one spreads pixels out into circles of confusion based on pixel depth and user camera parameters, taking occlusion into account. Step two re-normalizes pixel intensities based on accumulated pixel coverage values.

References:


    Jacobson, David. Lens Tutorial http://www.photo.net/learn/optics/lensTutorial
    Koren, Norman. Understanding image sharpness part 6: Depth of field and diffraction http://www.normankoren.com/Tutorials/MTF6.html
    Sushkin, Nicholas V. Depth of Field Calculation http://www.dof.pcraft.com/dof.cgi


Acknowledgements:


    I would like to thank my fellow current and former BlueSky employees Irene Kim, Carl Ludwig and Andrew Beddini for their valuable contributions to this research and development effort.


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