Abstract: A 3-D model of a subject matter may be constructed from a plurality of lidar shots and overlapping EO images of the subject matter. Each of the lidar shots may be mapped to image patches within two or more of the EO images using navigation data associated with the lidar shots and EO images. Each of the back-projected lidar points may be set as a centroid of an image patch (collection of pixels) within an EO image. With the aid of the lidar centroids, the image patches in overlapping EO images may be correlated and an image-based pixel-to-pixel coordinate association therebetween may be calculated. Using this refined pixel-to-pixel coordinate association, a 3-D model of the subject matter may be constructed and refined using photogrammetry techniques. Videogrammetry techniques, such as optical flow techniques, may be applied if a sufficient amount of EO imagery data is available.

Abstract: A lidar and one or more electro-optical (EO) imaging device may asynchronously acquire lidar shots and EO images. Navigation data comprising positioning, orientation, acceleration, and/or velocity information may be acquired as the lidar and EO data is captured. The lidar shots, EO images, and/or navigation data may be time stamped. The navigation and timing data may be used to associate a particular lidar shot and/or EO image with navigation data. The EO images may be captured at a higher capture rate and at a higher spatial resolution than the lidar shots. The navigation data may be used to cross correlate a lidar shot to a selected plurality of overlapping EO images. Ranging model information may be determined from EO image sequences using a stereo imaging technique. The stereo imaging technique may be seeded using the lidar shot data.

Abstract: A camera including a Lidar and an optical camera captures 3D data representing scans of an object. The Lidar and optical camera may synchronously or asynchronously capture 3D data. An image is generated for each scan. The images are aligned and combined to generate a total image. Alignment of images may be based on received spatial information. The total image is processed to generated a 3D model.