Visualization of 3D images from multiple texel images created from fused LADAR/digital imagery

Cody C. Killpack; Scott E. Budge

doi:10.1117/12.2177463

19 May 2015 Visualization of 3D images from multiple texel images created from fused LADAR/digital imagery

Cody C. Killpack, Scott E. Budge

Proceedings Volume 9465, Laser Radar Technology and Applications XX; and Atmospheric Propagation XII; 94650I (2015) https://doi.org/10.1117/12.2177463
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

The ability to create 3D 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. Determining the best texture is difficult, as each texel image remains independent after registration. The depth data is not merged to form a single 3D mesh, thus eliminating the possibility of generating a fused texture atlas. It is therefore necessary to determine which textures are overlapping and how to best combine them dynamically during the render process. The best texture for a particular pixel can be defined using 3D 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.

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Cody C. Killpack and Scott E. Budge "Visualization of 3D images from multiple texel images created from fused LADAR/digital imagery", Proc. SPIE 9465, Laser Radar Technology and Applications XX; and Atmospheric Propagation XII, 94650I (19 May 2015); https://doi.org/10.1117/12.2177463

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KEYWORDS

3D modeling

Reliability

Cameras

Electro optical modeling

3D image processing

Visualization

LIDAR

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