What is Plenoptic imaging?
What is Plenoptic imaging?
A light field camera, also known as a plenoptic camera, is a camera that captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the precise direction that the light rays are traveling in space. Holograms are a type of film-based light field image.
What happened to light field cameras?
Futuristic “light field” camera maker Lytro is shutting down, according to a statement posted online. The company says that starting today, it will stop “taking on new productions and providing professional services,” as it prepares to “wind down” the company over an unspecified period of time.
What is the Plenoptic function?
The plenoptic function is the 5-dimensional function representing the intensity or chromacity of the light observed from every position and direction in 3-dimensional space. This is because any particular ray through the convex space always intersects the same surface.
What is sub aperture image?
Sub-aperture images. Each image displays light incident on. sensor from a small region of aperture. Note slight shift in perspective.
How do lightfield displays work?
Light Field Displays (LFDs) work by chopping up the image volume radially, a bit like a cake. This is unlike volumetric displays, which slices the volume like a loaf of bread. LFDs typically have an angular separation of around one degree between slices.
How many degrees of freedom does the plenoptic function have?
Note that direction has only two degrees of freedom, and so the total dimensionality of the plenoptic function is five plus time. All cameras sample a subset of this function: a monocular pinhole camera measures a pencil of rays passing through a fixed position x at time t.
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