These notes are based on the course COS429, which is taught at Princeton by Professor Jianxiong Xiao.
Notes with their own pages
Notes that have not been organized
From class notes: Conceptually, each pixel is a sample of the radiance arriving at a camera viewpoint from a direction. The camera records the number of photons captured for each pixel in its sensor in a given period of time and approximates the power (energy from the photons in a given time) for all pixels.
From class notes: A photograph is a slice of the plenoptic function
- At a particular point of view $(x,y,z)$
- In the camera’s field of view (range over $\theta$ and $\phi$)
- At a certain time $t$
- Over a range of frequencies $\lambda$
- Image warping changes the domain of the image. In other words, we move pixels around (e.g., moving, scaling, rotating, fisheye).
- Image filtering changes the range of the image. In other words, we modify the pixels, but keep them in the same location (e.g., Instagram filters).