The shape of the detector must match the varying curvature of the imagesurface to accommodate continuously adjustable zoom, and this is easily done with this new hemispherical eye camera.
Firstly, this paper assumes that the surface of range image is piecewise smooth, and estimates curvature from the smooth piece of surface to which the current point belongs.
首先，提出曲面是分片光滑的假设，表面曲率需从该像素所属的光滑曲面片来估计。
3
Image can be regarded as curved surface, and Gaussian Curvature can be used to describe the curves degree of curved surface relative to ball.