Panoramic viewing system and method thereof
The present invention provides a panoramic viewing system, which includes a panoramic reflection mirror, formed in an elliptical conical status, and the conical surface thereof is defined as a curved surface used for reflecting an ambient light source; and an image sensor, disposed at one side of the panoramic reflection mirror and used for receiving a light source from the panoramic reflection mirror so as to generate an image data; wherein the panoramic reflection mirror allows a panoramic image to be formed in a rectangular area when the panoramic image is projected by the panoramic reflection mirror to the image sensor. In addition, the present invention also discloses a method of panoramic viewing, a panoramic projecting system, a method of panoramic projecting and a panoramic image sensor.
1. A panoramic image sensor, used in a panoramic viewing system and including:
a plurality of photo sensing units, arranged in said image sensor, and said photo sensing units being respectively formed with different photo sensing areas according to arranged locations, wherein said photo sensing areas of said photo sensing units being determined by an elliptical conical curved surface of a panoramic reflection mirror, central photo sensing areas of said photo sensing areas with lower illuminance are formed with a larger photo sensing area, and outer photo sensing areas of said photo sensing areas with higher illuminance are formed with a smaller photo sensing area;
the different photo sensing areas of the photo sensing unit are designed to match gradients of the curved surface of the panoramic reflection mirror, different gradients of the curved surface of the panoramic reflection mirror map onto the different photo sensing areas of the photo sensing unit, the different photo sensing areas of the photo sensing unit have smaller area sizes corresponding to larger gradients of the elliptical conical curved surface of the panoramic reflection mirror and the different photo sensing areas of the photo sensing unit have larger area sizes corresponding to smaller gradients of the elliptical conical curved surface of the panoramic reflection mirror.
2. The panoramic image sensor as claimed in claim 1 , wherein said photo sensing unit is a photodiode, a charge-coupled device, a complementary metal-oxide semiconductor or other photo sensitive material.
3. The panoramic image sensor as claimed in claim 1 , wherein the gradient of said elliptical conical curved surface is defined by a linear relation of an image projected by said panoramic reflection mirror to said image sensor.