Patent ID: 7035479
Filing Date: 2006-04-25
Classification: G08B,H04N

Abstract:
1. A surveillance system for providing a view of a scene under surveillance, wherein said scene has a bottom and a top and a near field and a far field, said scene represented by a plurality of lines of pixels, comprising: a digital network, a digital camera connected to said digital network, said digital camera capturing said view of said scene under surveillance and representing said scene under surveillance by said plurality of lines of pixels, and a computer connected to said digital network, wherein said computer applies a specific zooming scale factor to each of said horizontal line of pixels and continuously increases the scale factor of said horizontal line of pixels from said bottom to said top to capture said scene in said near field, yet maintain resolution in said scene in said far field resulting in any distortion in said view being reduced; wherein said lines of pixels are horizontal lines of pixels and said computer contains a computer program that applies a specific zooming scale factor to each of said horizontal lines of pixels and continuously increases the scale factor of said horizontal lines of pixels from said bottom to said top to capture said scene in said near field, yet maintain resolution in said scene in said far field; wherein said lines of pixels are over-sampled; and wherein said computer contains a computer program that utilizes the equation: where S is the rate of said over-sampling, N is the number of said plurality of lines of pixels, n is the horizontal line number counting from said bottom to said top, Zt is the zoom ratio at said top of said scene, and Zb is the zoom ratio at said bottom of said scene.