We provide conditions on a monoidal model categoryM so that the category of commutative monoids in M inherits a model structure from M in which a map is a weak equivalence or fibration if and only if it is so inM. We then investigate properties of cofibrations of commutative monoids, rectification between E∞-algebras and commutative monoids, the relationship between commutative monoids and mono...

Orthophoto imagery is a valuable layer in a GIS because it provides a generic, inexpensive, and accurate base map. However, in cities with tall buildings it is difficult to create a seamless database of orthophoto imagery. Traditional methods for orthophoto rectification disregard buildings. In this paper, we describe a fully automated process, developed by ASI, that creates true orthophotograp...

This paper examines accurate image depth determination in order to achieve accurate navigation. This is critical for Unmanned Aerial Vehicle or UAV aerial refueling and also space debris clearance operations. The theory behind image depth calculation is explained and then synthetic pixel data is manufactured in order to determine a 95% confidence interval on image depth under various errors con...

In most integral image analysis and processing tasks, accurate knowledge of the internal image structure is required. In this paper we present a robust framework for the accurate rectification of perspectively distorted integral images based on multiple line segment detection. The use of multiple line segments increases the overall fault tolerance of our framework providing strong statistical s...

We propose a simple method for computing a metric rectification of a plane from multiple views taken by Ki = diag( fi, fi,1) cameras. The orthogonality properties of this camera model are exploited from an early stage to achieve a straightforward optimization process with only two degrees of freedom, even if the fi in all views are unknown. We study the optimization landscapes for several typic...

Nonlinear lens distortion rectification is a common first step in image processing applications where the assumption of a linear camera model is essential. For rectifying the lens distortion, forward distortion model needs to be known. However, many self-calibration methods estimate the inverse distortion model. In the literature, the inverse of the estimated model is approximated for image rec...

Grid computing seeks to aggregate computing resources within an enterprise and leverage on resources you don’t own for compute-intensive applications. Geo-rectification is a process for correcting spatial location and orientation of a satellite image. This paper focuses on the parallelization of the computeintensive satellite image geo-rectification problem on a cluster grid. We discuss our app...

In this paper, we introduce an efficient method of trinocular rectification to enhance the performance of stereo vision. In order to perform the trinocular rectification, we first obtain trinocular images by three cameras lying on a plane that faces the target objects. Then, we extract the original camera parameters, and compute the new camera parameters that transform the epipole on each image...

In this paper, an algorithm for rectifying heterogeneous and uncalibrated pairs of stereo images is presented. In particular, a pair of images is captured by using a combination of static and dynamic cameras at unequal zoom, thus having different focal lengths and/or image resolutions. The rectification of such pairs of images is made in two steps. In the first step, image shrinking based on fo...