关键词: 水稻, 叶片, 植物建模, 渲染, 可视化

Abstract: In this paper, a method to model rice leaves is proposed. The silhouette of the leaf is defined by inputting a grayscale which is converted from a scanned rice leaf image. By creating many spline curves and calculate the intersections of them, and rice leaf veins are constructed by sweeping these generating curves along these intersections, then the rice leaf three-dimensional grid model is established. After that, the rice leaf grayscale image as the texture map which provides texture information and material information for the leaf model is used with texture-mapping technology to generate the three-dimensional leaf model with material information. Combined with the relationship model between the rice leaf color channel  R、G、B and SPAD, it realizes the real-time rendering of rice leaf color, and achieves promising realistic rendering results.

Key words: rice, leaf, plant modeling, rendering, visualization