Benbrook Chen Leckie Lopez
Introduction
Image alignment is the process of matching one image called template with another image. It is a crucial step in many image systems engineering applications such as video stabilization, summarization, and the creation of panoramic mosaics.
Background
Previous work on image alignment algorithms fall into two categories: intensity-based and feature-based. Intensity-based algorithms compare the spatial intensity in sets of images, while feature-based algorithms detect image features like objects or lines. Image alignment algorithms can alternatively be sorted according to the transformation on the target image space to the reference image space. Some models use linear transformations, while other models use non-linear transformations that are elastic or non-rigid.
Methods
The main goal of this project is to experiment with existing image alignment algorithms and analyze their performance. We will focus on comparing algorithms that utilize feature-based, linear transformation models. We used data from the ISET3D software on simulated images taken by various cameras and sensors, and images where the object is moving as well as the global scene. Once we align images, we can use root mean squared error or SSIM (structural similarity) as metrics to compare the results between algorithms.
Results
Conclusions
Appendix
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