Patent Document ID: 20110181689
Application ID: 12670319
Patent Status: 0

Claim One:
1. A panoramic imaging system comprising: an image acquisition means for acquiring a wide-angle image using a wide-angle imaging lens rotationally symmetric about an optical axis; an image processing means for generating a panoramic image based on the said wide-angle image; and an image display means for displaying the said panoramic image on a rectangular screen, wherein; a coordinate of an image point on the rectangular screen corresponding to an object point having a coordinate (X, Y, Z) in a world coordinate system, which has a nodal point of the wide-angle lens as an origin and a vertical line passing through the origin as the Y-axis and an intersection line between a reference plane containing the said Y-axis and the said optical axis of the lens and a horizontal plane perpendicular to the said vertical line as the Z-axis, is given as (x″, y″), a horizontal incidence angle ψ, which an incident ray originating from the said object point makes with the said reference plane, is given as ψ = tan - 1 ( X Z ) , a vertical incidence angle δ, which the said incident ray makes with the X-Z plane, is given as δ = tan - 1 ( Y X 2 + Z 2 ) , an elevation angle μ of the said incident ray is given as μ=δ−χ, herein, χ is a reference angle larger than −90° and smaller than 90°, a lateral coordinate x″ of the said image point is given as x″=cψ, herein, c is proportionality constant, a longitudinal coordinate y″ of the said image point is given as y″=cF(μ), herein, the said function F(μ) is a monotonically increasing function passing through the origin, which satisfies the relations given as F(0)=0 and ∂ F ( μ ) ∂ μ > 0.