Abstract: Provided is a work machine capable of achieving both low fuel consumption and ensuring of workability. The work machine is configured to, in a state where an output of an engine or hydraulic pump has increased to an increase threshold (S12: Yes) with the rotational speed being at a first rotational speed (S11: Yes), raise the rotational speed from the first rotational speed to a second rotational speed (S13); in a process of raising the rotational speed to the second rotational speed, output, to a regulator, a signal instructing reduction in the discharge rate (S14) so as to keep the output of the engine or hydraulic pump constant; and after the rotational speed has reached the second rotational speed, output, to the regulator, a signal instructing increase in the discharge rate (S16) so as to make the output of the engine or hydraulic pump have a value corresponding to a request load.

Abstract: Systems and methods for generating image tour are provided. Method includes receiving sequence of images. Each image has associated depth map and is characterized by plurality of parameters. Method includes interpolating flow path containing points corresponding to each image for each parameter. Each flow path relates parameterization to parameter. Method includes identifying rendering artifacts based on sequence of images, associated depth maps, and interpolated flow paths. Method includes identifying slow segments and fast segments in each of interpolated flow paths based on identified rendering artifacts. Method includes determining start/stop times for each of slow segments. Method includes interpolating time curve based on determined start/stop times for each of slow segments and fixed duration of time for each of fast segments. Time curve relates time to parameterization.

Abstract: Systems and methods for generating a depthmap for images of structures in a geographic area are provided. In some aspects, a method includes dividing the area into cells. Each of the cells is visible in no more than a threshold number of images. The method also includes: generating, using multi-view stereo processing, a set of three-dimensional (3D) points of structures in each of the cells based on the images associated with a corresponding one of the cells; generating a mesh model of the structures in each of the cells based on the set of 3D points for a corresponding one of the cells; identifying one or more of the mesh models visible in a corresponding one of the images; and generating a depthmap for each of the images based on the identified one or more mesh models visible in a corresponding one of the images.

Abstract: A computer-implemented method, system and computer-readable medium for transitioning between images in a three-dimensional space are provided. A three-dimensional (3D) model of a location that includes multiple two-dimensional images textured onto the 3D model and each image is associated with a set of credentials is provided. A virtual path is generated within the 3D model, the virtual path including at least some of the plurality of images in the sequential order. For each image in the virtual path, a type of a transition within each image and between the adjacent images in the sequential order is determined. The type of transition is based on the set of credentials associated with each image. As the virtual path is traversed using a virtual camera, where the virtual camera activates transitions associated with each image and the transitions ensure that the movement within the 3D model appears constant to the user.

Abstract: Systems and methods for generating a depthmap for images of structures in a geographic area are provided. In some aspects, a method includes dividing the area into cells. Each of the cells is visible in no more than a threshold number of images. The method also includes: generating, using multi-view stereo processing, a set of three-dimensional (3D) points of structures in each of the cells based on the images associated with a corresponding one of the cells; generating a mesh model of the structures in each of the cells based on the set of 3D points for a corresponding one of the cells; identifying one or more of the mesh models visible in a corresponding one of the images; and generating a depthmap for each of the images based on the identified one or more mesh models visible in a corresponding one of the images.

Abstract: Systems and methods for reconstructing a floorplan of a building for generating a three-dimensional model are provided. One aspect of the present disclosure is directed to a computer-implemented method for generating a three-dimensional model of a building. The method includes estimating a floor height and a ceiling height of the building. The method also includes identifying a core region of a two-dimensional graph, the core region corresponding to an interior of the building. The method includes determining a solution path that circumnavigates the core region and minimizes a cost formula, the cost formula providing an edge cost for each of a plurality of edges. The method further includes generating a three-dimensional model of the interior of the building based on the floor height, the ceiling height, and the solution path.

Abstract: Systems, methods and articles of manufacture for minimizing parallax based on depth map generation are described herein. Embodiments of the present disclosure relate to cameras positioned on a camera assembly that capture digital photographic images. The digital photographic images are stitched together into a panoramic image. In order to minimize the parallax while stitching, the procedure includes estimating a distance of a pixel corresponding to a scene point on the scene surface from a panoramic center of projection positioned on the camera assembly to the scene surface. A depth map is generated that provides the estimated depth of the pixel. Based on the estimated depth, the pixel may be projected onto each camera. A panoramic pixel corresponding to the scene point may be obtained from the values of each projected pixel. The panoramic pixel may then be mapped onto the panoramic image with parallax minimized.

Abstract: System and methods for preparing a model of an environment for display are provided. In some aspects, a system includes a transformation module configured to modify a three-dimensional (3D) model of an environment such that a target wall portion of the 3D model is more visible from a viewing direction after the modification than prior to the modification. The modification of the 3D model is based on constructive solid geometry and comprises at least one of i) a removal of at least one ceiling wall portion of the 3D model, ii) a thickening of at least one lateral wall portion of the 3D model, and iii) a removal of an obstructing wall portion. The obstructing wall portion blocks at least a partial view of the target wall portion from the viewing direction.

Abstract: System and methods for generating a model of an environment are provided. In some aspects, a system includes a layer module configured to identify one or more layers of the environment based on a plurality of three-dimensional (3D) points mapping the environment. The system also includes a layout module configured to generate a layout for each layer. Each layout includes a two-dimensional (2D) model of the environment. The system also includes a construction module configured to generate a 3D model of the environment based on the 2D model of each layout.

Abstract: In accordance with one or more aspects of a match, expand, and filter technique for multi-view stereopsis, features across multiple images of an object are matched to obtain a sparse set of patches for the object. The sparse set of patches is expanded to obtain a dense set of patches for the object, and the dense set of patches is filtered to remove erroneous patches. Optionally, reconstructed patches can be converted into 3D mesh models.

Abstract: In accordance with one or more aspects of a match, expand, and filter technique for multi-view stereopsis, features across multiple images of an object are matched to obtain a sparse set of patches for the object. The sparse set of patches is expanded to obtain a dense set of patches for the object, and the dense set of patches is filtered to remove erroneous patches. Optionally, reconstructed patches can be converted into 3D mesh models.

Abstract: Systems and methods for generating a depth tile are provided. In some aspects, a system includes an alignment module configured to map each pixel of a depthmap to a corresponding pixel of a map tile. Each pixel of the depthmap includes a depth value, and each pixel of the map tile is associated with a terrain elevation value. The system also includes a transform module configured to adjust the depth value of each pixel of the depthmap based on a corresponding terrain elevation value. The system also includes a depth tile module configured to generate the depth tile. Each pixel of the depth tile includes a corresponding adjusted depth value.

Abstract: In accordance with one or more aspects of a match, expand, and filter technique for multi-view stereopsis, features across multiple images of an object are matched to obtain a sparse set of patches for the object. The sparse set of patches is expanded to obtain a dense set of patches for the object, and the dense set of patches is filtered to remove erroneous patches. Optionally, reconstructed patches can be converted into 3D mesh models.

Abstract: A melt filling pressure difference control method controls a pressure difference used to supply melt from a holding furnace to a cavity of a casting machine by generating a pressure difference between an interior space of holding furnace and the cavity formed inside the mold. The method includes the steps of setting up a program pattern comprising time-varying characteristics of pressure difference target values, controlling the pressure difference so as to follow the program pattern that was set up, detecting whether the melt surface has risen to a predetermined level inside the cavity, compensating the program pattern based on the melt surface level when the melt surface has risen to a predetermined level inside cavity, and controlling the pressure difference between space inside the holding furnace and the cavity so as to follow the compensated program pattern.