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首页> 外文期刊>Optical engineering >Dynamic visualization of three-dimensional images from multiple texel images created from fused ladar/digital imagery
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Dynamic visualization of three-dimensional images from multiple texel images created from fused ladar/digital imagery

机译：从融合的激光/数字图像创建的多个纹理像素图像中动态显示三维图像

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摘要

The ability to create three-dimensional (3-D) image models, using registered texel images (fused ladar and digital imagery), is an important topic in remote sensing. These models are automatically generated by matching multiple texel images into a single common reference frame. However, rendering a sequence of independently registered texel images often provides challenges. Although accurately registered, the model textures are often incorrectly overlapped and interwoven when using standard rendering techniques. Consequently, corrections must be done after all the primitives have been rendered by determining the best texture for any viewable fragment in the model. This paper describes a technique to visualize a 3-D model image created from a set of registered texel images. The visualization is determined for each viewpoint. It is, therefore, necessary to determine which textures are overlapping and how to best combine them dynamically during the rendering process. The best texture for a particular pixel can be defined using 3-D geometric criteria, in conjunction with a real-time, view-dependent ranking algorithm. As a result, overlapping texture fragments can now be hidden, exposed, or blended according to their computed measure of reliability. The advantages of this technique are illustrated using artificial and real data examples.
机译：使用注册的纹理像素图像（融合的激光图像和数字图像）创建三维（3-D）图像模型的能力是遥感中的重要主题。通过将多个纹理像素图像匹配到单个公共参考框架中，可以自动生成这些模型。但是，渲染一系列独立注册的纹理像素图像通常会带来挑战。尽管已精确注册，但使用标准渲染技术时，模型纹理通常会错误地重叠和交织。因此，必须在渲染完所有图元之后，通过为模型中的任何可见片段确定最佳纹理来进行校正。本文介绍了一种可视化从一组注册的纹理像素图像创建的3D模型图像的技术。确定每个视点的可视化。因此，有必要确定哪些纹理重叠，以及如何在渲染过程中最佳地动态组合它们。可以使用3-D几何标准结合实时，与视图相关的排名算法来定义特定像素的最佳纹理。结果，重叠的纹理片段现在可以根据其计算出的可靠性度量进行隐藏，暴露或混合。使用人工和真实数据示例说明了此技术的优势。

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