Image-based modeling and rendering

<h2 id="light-modeling">Light modeling</h2>
<p>Instead of considering only the physical model of a solid, IBMR methods usually focus more on light modeling.  The fundamental concept behind IBMR is the <a href="/facts/Plenoptic_illumination_function/03Bcot3s">plenoptic illumination function</a> which is a parametrisation of the <a href="/facts/Light_field/03Bcot3s">light field</a>. The plenoptic function describes the light rays contained in a given volume. It can be represented with seven dimensions: a ray is defined by its position 
  
    
      
        (
        x
        ,
        y
        ,
        z
        )
      
    
    {\displaystyle (x,y,z)}
  
, its orientation 
  
    
      
        (
        θ
        ,
        ϕ
        )
      
    
    {\displaystyle (\theta ,\phi )}
  
, its wavelength 
  
    
      
        (
        λ
        )
      
    
    {\displaystyle (\lambda )}
  
 and its time 
  
    
      
        (
        t
        )
      
    
    {\displaystyle (t)}
  
: 
  
    
      
        P
        (
        x
        ,
        y
        ,
        z
        ,
        θ
        ,
        ϕ
        ,
        λ
        ,
        t
        )
      
    
    {\displaystyle P(x,y,z,\theta ,\phi ,\lambda ,t)}
  
.  IBMR methods try to approximate the plenoptic function to render a novel set of two-dimensional images from another.  Given the high dimensionality of this function, practical methods place constraints on the parameters in order to reduce this number (typically to 2 to 4).
</p>
<h2 id="ibmr-methods-and-algorithms">IBMR methods and algorithms</h2>
<ul><li>View <a href="/facts/Morphing/KKsCeSHp">morphing</a> generates a transition between images</li>
<li>Panoramic imaging renders panoramas using image mosaics of individual still images</li>
<li>Lumigraph relies on a dense sampling of a scene</li>
<li>Space carving generates a 3D model based on a <a href="/facts/Photo-consistency/7vjHVohq">photo-consistency</a> check</li></ul>
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/View_synthesis/PRAWmSbv">View synthesis</a></li>
<li><a href="/facts/3D_reconstruction/MlnAUm3l">3D reconstruction</a></li>
<li><a href="/facts/Structure_from_motion/swh21JgG">Structure from motion</a></li></ul>

<h2 id="external-links">External links</h2>
<ul><li>Quan, Long. <i>Image-based modeling</i>. Springer Science & Business Media, 2010. <a href="https://www.springer.com/us/book/9781441966780">[1]</a></li>
<li>Ce Zhu; Shuai Li (2016). "Depth Image Based View Synthesis: New Insights and Perspectives on Hole Generation and Filling". <i>IEEE Transactions on Broadcasting</i>. 62 (1): 82–93. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1109%2FTBC.2015.2475697">10.1109/TBC.2015.2475697</a>. <a href="/facts/S2CID_(identifier)/ldJsHa2Y">S2CID</a> <a href="https://api.semanticscholar.org/CorpusID:19100077">19100077</a>.</li>
<li>Mansi Sharma; Santanu Chaudhury; Brejesh Lall; M.S. Venkatesh (2014). "A flexible architecture for multi-view 3DTV based on uncalibrated cameras". <i>Journal of Visual Communication and Image Representation</i>. 25 (4): 599–621. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1016%2Fj.jvcir.2013.07.012">10.1016/j.jvcir.2013.07.012</a>.</li>
<li>Mansi Sharma; Santanu Chaudhury; Brejesh Lall (2014). <i>Kinect-Variety Fusion: A Novel Hybrid Approach for Artifacts-Free 3DTV Content Generation</i>. In 22nd International Conference on Pattern Recognition (ICPR), Stockholm, 2014. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1109%2FICPR.2014.395">10.1109/ICPR.2014.395</a>.</li>
<li>Mansi Sharma; Santanu Chaudhury; Brejesh Lall (2012). <a href="http://dl.acm.org/citation.cfm?id=2425374"><i>3DTV view generation with virtual pan/tilt/zoom functionality</i></a>. Proceedings of the Eighth Indian Conference on Computer Vision, Graphics and Image Processing, ACM New York, NY, USA. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1145%2F2425333.2425374">10.1145/2425333.2425374</a>.</li></ul>

Image-based modeling and rendering open-in-new

Image-based modeling and rendering