What is parallax?

  • (noun): The apparent displacement of an object as seen from two different points that are not on a line with the object.


Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines. The term is derived from the Greek παράλλαξις (parallaxis), meaning "alteration". Nearby objects have a larger parallax than more distant objects when observed from different positions, so parallax can be used to determine distances.

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Some articles on parallax:

Parallax Scanning - Related Items
... stereopsis parallax scrolling Critical alignment through Parallax Induction Parallax Image Display (PID) Vision III Imaging, Inc ...
LP 944-020 - Distance
... very low-mass stars", LP 944-020 (designated there as BRI 0337-3535) has relative parallax mas, and correction from relative to absolute parallax (i ... mean parallax of the reference frame stars) mas ... This yields absolute parallax mas, and standard deviation of absolute parallax (according formula ) mas, and this corresponds to a distance of pc, or ...
Minolta AL-F
... was coupled to a superimposed rangefinder and had a mechanical horizontal parallax correction ... For vertical parallax only a parallax arrow ...
List Of Common Microcontrollers - Parallax
... Parallax has accumulated a large stock of the dies and is managing the packaging ... the SX-18 and SX-52 have been discontinued) Parallax's SX series is an 8-bit microcontroller which has unusually high speed, up to 75 MHz (75 MIPS), and a high degree of flexibility ... While Parallax's SX micros are limited in variety, their high speed and additional resources allow programmers to create 'virtual devices', including complete video controllers ...