A Flexible Pinhole Camera Model For Coherent Nonuniform Sampling

The flexible pinhole camera (FPC) allows flexible modulation of the sampling rate over the field of view. The FPC is defined by a viewpoint and a map specifying the sampling locations on the image plane. The map is constructed from known regions of interest with interactive and automatic approaches. The FPC provides inexpensive 3D projection that allows rendering complex datasets quickly, in feed-forward fashion, by projection followed by rasterization. The FPC supports many types of data, including image, height field, geometry, and volume data. The resulting image is a coherent nonuniform sampling (CoNUS) of the dataset that matches the local variation of the dataset’s importance. CoNUS images have been successfully implemented for remote visualization, focus-plus-context visualization, and acceleration of expensive rendering effects such as surface geometric detail and specular reflection.

Voicu Popescu, Bedrich Benes, Paul Rosen, Jian Cui, and Lili Wang. A Flexible Pinhole Camera Model For Coherent Nonuniform Sampling. IEEE Computer Graphics and Applications (CG&A), 2014.

@article{popescu2014flexible,
  title = {A Flexible Pinhole Camera Model for Coherent Nonuniform Sampling},
  author = {Popescu, Voicu and Benes, Bedrich and Rosen, Paul and Cui, Jian and Wang,
    Lili},
  journal = {IEEE Computer Graphics and Applications (CG&A)},
  volume = {34},
  pages = {30--41},
  year = {2014},
  keywords = {Approximation methods; Cameras; Context modeling; Data visualization; Image
resolution; Rendering (computer graphics); Servers; camera models; computer
graphics; focus-plus-context visualization; graphics; interactive rendering; nonpinhole
cameras; nonuniform sampling; pinhole cameras; remote visualization; specular-reflection
rendering; surface-geometric-detail rendering; visualization; volume rendering},
  abstract = {The flexible pinhole camera (FPC) allows flexible modulation of the
    sampling rate over the field of view. The FPC is defined by a viewpoint and a map
    specifying the sampling locations on the image plane. The map is constructed from known
    regions of interest with interactive and automatic approaches. The FPC provides
    inexpensive 3D projection that allows rendering complex datasets quickly, in
    feed-forward fashion, by projection followed by rasterization. The FPC supports many
    types of data, including image, height field, geometry, and volume data. The resulting
    image is a coherent nonuniform sampling (CoNUS) of the dataset that matches the local
    variation of the dataset's importance. CoNUS images have been successfully implemented
    for remote visualization, focus-plus-context visualization, and acceleration of
    expensive rendering effects such as surface geometric detail and specular reflection.}
}