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图象漫游
相关语句
  image roan
     Freely Implementation of Image Roan with VB Delphi
     利用VB、Delphi轻松实现图象漫游
短句来源
  相似匹配句对
     Walkthrough in Image-Based Virtual In-door Environment
     基于图象的室内虚拟漫游系统
短句来源
     Study on Image-Based Real Time Walkthrough
     基于图象的实时漫游技术研究
短句来源
     On Image Matching Technology
     图象匹配技术
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     Tour to Toronto
     漫游多伦多
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     On the Dielectric Image Wang Lixiang
     论电介质图象
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Two schemes how to implement images roan technique in the program are analyzed,and their advantages and disadvantages are described respectively.A simple method to implement image roan with VB,Delphi,etc.RAD is obtained to result in two types of roaning efficiencies of draging image and point and move with mouse in famous view software ACDSee32.

分析了为解决如何在自己的程序中实现图象漫游技术的两个方案 ,指出了各自的优缺点 ,总结出利用VB、Delphi等 RAD实现图象漫游的便捷方法 ,可产生出类似于著名看图软件 ACDSee32中拖动图象和随鼠标即指即移等两种漫游效果 ,给出了编程步骤和代码。

Massive data of remote sensing images has been generated as remote sensing technology develops rapidly. The disfluency when displaying massive data was once a problem. We found that these phenomena mainly occurred at the operation of panning or zooming out. In this paper, we analyze the reason of these phenomena at current level of computer software and hardware technology. We also present one method to solve this problem based on the intermediate-image technique, raster-division technique, cache technique and...

Massive data of remote sensing images has been generated as remote sensing technology develops rapidly. The disfluency when displaying massive data was once a problem. We found that these phenomena mainly occurred at the operation of panning or zooming out. In this paper, we analyze the reason of these phenomena at current level of computer software and hardware technology. We also present one method to solve this problem based on the intermediate-image technique, raster-division technique, cache technique and intermediate-image-sequence technique. We had programmed on Windows 9X/2000 platforms by Visual C ++6 0 and applied this system at the investigation project of natural environment by remote sensing method in Zhejiang Province. In this project we accomplished the selection of reference points, image inlay and the matching of the TM images of Zhejiang province at 1997 and 2000. Our practices showed this method can avoid the stagnation when displaying in existing device conditions.

为了解决随着遥感技术的飞速发展而产生的海量遥感图象 ,以及在计算机显示时 ,操作不流畅的问题 ,结合当前计算机软件和硬件的技术对其原因进行了深入分析 ,并针对影响显示速度的图象漫游和缩小操作等关键问题提出了基于中间图象技术、栅格分块技术、高速缓存技术以及中间图象序列技术等解决手段 ,同时在 Windows9X/ 2 0 0 0操作系统上 ,利用 VC+ + 6 .0给予了具体程序实现 ,并在浙江省水土流失遥感调查中得到了充分利用 ,实践表明本文提出的技术手段能够在现有的计算机条件下 ,较好地解决图象显示不流畅的问题 .

Three questions are discussed in the paper: a). Using cube face to map omnidirectional image. The transforming formula between cubic surface and a plane are deduced and the transformation is carried out. This helps observe the omnidirectional image on the cube face. b). Accurate camera calibration is necessary in creating full omnidirectinal image. This paper analyses the error of an ordinary method for camera calibration, and discovers that the length difference between object and image is the main source of...

Three questions are discussed in the paper: a). Using cube face to map omnidirectional image. The transforming formula between cubic surface and a plane are deduced and the transformation is carried out. This helps observe the omnidirectional image on the cube face. b). Accurate camera calibration is necessary in creating full omnidirectinal image. This paper analyses the error of an ordinary method for camera calibration, and discovers that the length difference between object and image is the main source of calibration error. A method is proposed to correct the error. This makes the camera calibration result more accurate and effective. c). This paper proposes a method to browse on the basis of omnidirectional image. A simple virtual reality system is developed to implement the browsing in virtual space based on omnidirectional image. Users can browse in it much more freely than the same system based on panoramic image.

本文首先介绍了基于图象的绘制方法和全景图象 ,然后深入研究了三个与全方位全景图象有关的问题。 1、本文利用立方体表面来映射全方位全景图象 ,通过定向投影 ,推导了立方体表面与观察平面之间相互变换的公式 ,并实现了这些变换 ,这有利于在研究全方位全景图象时对立方体表面的图象进行观察。 2、准确的照相机标定是生成完整的全方位全景图象的必要条件 ,本文以常用的标准件标定法为基础 ,分析了其中产生误差的各项因素 ,认为与全方位全景图象有关的主要误差因素为物象距离 ,对此提出了一套修正方法 ,从而得到了一个简单有效的照相机标定方法。 3、本文提出了一个利用全方位全景图象来实现虚拟场景漫游的机制 ,实现了基于全方位全景图象的漫游 ,得到了一个简单的虚拟现实系统 ,用户在其中漫游的自由度远大于基于柱面全景图象的漫游系统。

 
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