Patent ID: 6897883

Claim:
An omniazimuthal visual system, comprising: an optical system capable of instantaneously obtaining an image of 360° view field area therearound and capable of central projection transformation for acquiring the image; an imaging section for converting the image obtained through the optical system into image data represented by polar coordinates; an image transformation section for transforming the image data into display data represented by rectangular coordinates; a display section for displaying a transformed image based on the display data from the image transformation section; and a display control section for controlling the transformed image to be displayed on the display section, wherein the image transformation section includes at least one buffer memory for temporarily storing the image data and the display data, an arithmetic/logic circuit for performing coordinate transformation of a polar coordinate when the image data is transformed into the display data as a rectangular coordinate with reference to a lookup table of a trigonometric function, and a CPU for controlling the at least one buffer memory, the arithmetic/logic circuit, and the lookup table; and wherein the arithmetic/logic circuit is formed only by linear operation circuits.