These new techniques have many advantages over traditional geometry - based rendering , such as requiring only modest computational resources and achieving photorealistic virtual images with no additional operations 因此，从图像真实感和绘制速度而言，图像绘制技术具有几何绘制技术无法比拟的优势。
Real - time realistic image rendering is one of the most important and difficult problems in computer graphics , previous methods cannot provide highly realistic image in real time 实时的高真实感图像绘制是计算机图形学中的主要难题之一，传统的方法难以在提供真实感图像绘制结果的同时保证足够的绘制速度。
In this paper , through researching algorithm of a flame and explosion image rendering technology , the basic ideas of particle system and application in computer image rendering technology are depicted 摘要本文通过一种焰火爆炸的图像绘制技术算法的研究，叙述了粒子系统的基本思想和在图像绘制技术领域中的应用。
We present a simple and practical self - calibration method of estimating the parameters of digital cameras for image - based rendering system . depth maps recovering has long been one of the central research problems in computer vision 相机定标是提取图像中3d信息必不可少的前提和基础，我们提出了适用于图像绘制系统的相机自定标方法，算法简便实用。
Camera calibration , depth maps recovering and constructing representation scheme are important issues in ibr , on which our research is concentrating . camera calibration is the preliminary step towards deriving metric information from the images 相机定标、图像深度信息提取和建立图像模型是图像绘制技术的重要研究内容，本文着重对这些问题开展研究。
This thesis focuses on pre - computation and sampling based real - time realistic image rendering . the key idea is to use the information in pre - computation results or pictures captured , for presenting effects of highly realistic shading and supporting fast rendering 本文主要研究基于预计算及采样的实时高真实感图像绘制技术，该技术的思想是利用图像或预计算结果的采样数据，展现高真实感的图像效果，支持快速的绘制计算。
We scan photographs of tissue slices to get 2d data and then these data are classified and transfer into 3d data which are saved into database . we do geometric construction by contour connection algorithm and render the tissue using volume data based on surface . some algorithms used widely are compared in this article and implemented in the experimental system : simulating lost datum by linear interpolation , adjusting surface profile by twice bezier interpolation , dealing with some special normalized vector 通过扫描输入的人体组织的切片图象，获得组织的二维信息，再将这些二维数据经过分类和转换，把它们转换成对应的三维体数据，在数据库中保存：然后采用contourconnection算法进行几何重构，用三角面进行等值面拟合，实现基于等值面的体数据的三维图像绘制。
Spherical panoramic technology is a kind of image based rending technique . it models the virtual environment using data structure construct from optical image . compare with the traditional 3 - d model technique , it has higher performance in rending virtual scene 球面全景图技术是一种基于图像绘制( image - basedrendering ，简称ibr )的方法，它是利用光学图像构建数据模型进行虚拟场景的绘制，与传统的通过三维建模的绘制方法相比，这种方法在绘制的效率和效果方面有巨大的优势，因而是近年来的一个重要研究方向。
Otherwise in virtual reality based on images we can create a virtual space by this way : first we shoot pictures at the same site but in different directions , then stitch these pictures to get cylindrical or spherical surface panoramas after they were processed some way , last establish the relationships of these panoramas 为此，近几年开始流行基于图像绘制的虚拟现实技术。基于图像绘制的虚拟现实技术是把在相同节点位置拍摄的照片图像经过处理后拼接成一个圆柱形或者球面形全景图像，并根据拍摄时的空间位置，在不同节点的全景图像之间建立起空间关系，就得到了一个虚拟空间。
In order to meet the needs of this application , we propose several approaches to compute reliable dense depth maps , such as a feature - constrained stereo matching algorithm , a stereo matching algorithm based on gray segments and a stereo matching algorithm based on fuzzy identification , we demonstrate these techniques on synthetic and real image pairs , indicating that these approaches are feasible 图像深度提取一直是计算机视觉领域的中心研究问题，为了得到图像绘制系统必需的比较精确的高密度深度图像，我们相继提出了基于特征约束的立体匹配算法、基于灰度段的立体匹配算法和基于模糊判别的立体匹配算法，通过实验验证上述三种算法均获得了良好的效果。
