ML Anthology

A Generalized Brightness Change Model for Computing Optical Flow

Shahriar Negahdaripour, Chih-Ho Yu
ICCV 1993 pp. 2-11
doi:10.1109/ICCV.1993.378241 /iccv/1993/negahdaripour1993iccv-generalized/

Abstract

The authors propose an image motion constraint equation based on a model which allows the brightness of a scene point to vary with time, unlike the case in the brightness constancy model. Using this model, they describe a method for the computation of optical flow and investigate its performance in a variety of conditions involving brightness variations of scene points, due to illumination nonuniformity, light source motion, specular reflection, and/or interreflection. It is shown that in the application of this method, care must be taken in the estimation of image derivatives using finite difference methods to prevent biases in the solution. A simple modification is suggested to overcome the problem. A comparison is made with two other models, including the classical brightness constancy model, through results from experiments with real images.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

ICCV Semantic Scholar

Cite

Text

Negahdaripour and Yu. "A Generalized Brightness Change Model for Computing Optical Flow." IEEE/CVF International Conference on Computer Vision, 1993. doi:10.1109/ICCV.1993.378241

Markdown

[Negahdaripour and Yu. "A Generalized Brightness Change Model for Computing Optical Flow." IEEE/CVF International Conference on Computer Vision, 1993.](https://mlanthology.org/iccv/1993/negahdaripour1993iccv-generalized/) doi:10.1109/ICCV.1993.378241

BibTeX

@inproceedings{negahdaripour1993iccv-generalized,
  title     = {{A Generalized Brightness Change Model for Computing Optical Flow}},
  author    = {Negahdaripour, Shahriar and Yu, Chih-Ho},
  booktitle = {IEEE/CVF International Conference on Computer Vision},
  year      = {1993},
  pages     = {2-11},
  doi       = {10.1109/ICCV.1993.378241},
  url       = {https://mlanthology.org/iccv/1993/negahdaripour1993iccv-generalized/}
}