1) 3D background
三维背景
2) background maintenance
背景维护
1.
By analyzing the luminance change between adjacent frames,this paper presents threshold calculation method based on the third central moments of frame difference,and proposes an anti-noise background maintenance model and finally we combine the ideas of background subtraction with frame difference algorithm to detect motion object.
运动对象检测是智能视频监控的基础,现有的运动对象检测算法在实时性和检测精度方面仍有待提高,本文在分析相邻帧间的亮度变化基础上,提出了基于三阶中心矩统计分布的背景点阈值计算方法,给出了抗噪声干扰的背景维护模型,最后综合利用时间差分法和背景减法进行运动对象检测,为了提高检测精度使用了形态学的腐蚀与扩张处理。
4) Third-party Contest
三方背景
5) 3D landscape
三维景观
1.
Research on modeling 3D landscape of virtual city based on Google SketchUp;
基于Google SketchUp的虚拟城市三维景观构建技术研究
2.
Research on Some Techniques of Interactive Designing of 3D Landscape;
三维景观交互设计若干技术研究
3.
Reconstruction of 3D landscape for urban region is an important research in digital photogrammetry and visualization.
进而在地面与建筑物表面二维半不规则三角网和原始数字影像的基础上，实现了建筑物可见表面纹理的恢复，重建了城市真实三维景观。
6) 3D scenes
三维场景
1.
A simulation system of down-hole production using the desktop operate system is obtained, which utilizes the 3D modeling software "MultiGen"and the 3D scenes managing software "OpenGVS".
文章介绍了虚拟制造的概念和分类 ,并阐述了其关键技术 ,包括三维建模、三维场景显示和三维运动模拟。
补充资料：3K背景辐射
见微波背景辐射。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条