Techniques are described for efficient label insertion and collision handling. A bounding geometry for a label to be graphically displayed on a display screen as part of an electronic map is determined, wherein the bounding geometry comprises a circle. The bounding geometry is inserted into a grid index, wherein the grid index represents a viewport of the electronic map. Disjoint regions of the grid index intersected by the bounding geometry are identified, wherein each disjoint region represents a different portion of the viewport. For each intersected disjoint region, it is identified whether there is at least one collision between the bounding geometry and one or more existing bounding geometries in the disjoint region; and responsive to identifying whether there is at least one collision in the intersected disjoint region, a target opacity of the label is set.

A method is provided for determining angular relationships from a point of interest to a plurality of peripheral points of interest on a map. One or more cost functions from the point of interest to the plurality of the peripheral points of interest on the map are analyzed. A plurality of vectors emanating from the point of interest to the plurality of the peripheral points of interest on a different representation of the map are displayed. Another method is provided for identifying points of interest on a map. Regions of high interest are identified on the map. Regions of low interest are identified on the map. The regions of high interest are expanded on a different representation of the map. The regions of low interest are contracted by an amount proportional to an amount the regions of high interest are expanded on the different representation of the map.

A method and an apparatus for correcting deformation of a digital map for a vehicle, includes loading a related part from the digital map; determining whether the related part includes road coordinate information in a first zone and road coordinate information in a second zone, wherein the road coordinate information in the first zone is associated with a first Cartesian coordinate system and the road coordinate information in the second zone is associated with a second Cartesian coordinate system; transforming the road coordinate5 information in the second zone to the first Cartesian coordinate system, if the related part includes the road coordinate information in the first zone and the road coordinate information in the second zone; and generating a corrected map by combining the road coordinate information in the first zone and the transformed road coordinate information in the second zone; wherein the first Cartesian coordinate system is the coordinate system of the vehicle for processing the road coordinate information.

A user interface for rotating imagery among a plurality of canonical views of a geographic area of interest is disclosed. The interface includes at least one rotation control icon for rotating the imagery among a plurality of canonical views of the geographic area, and a direction indicating portion that indicates a compass direction associated with the canonical view presented on the display device. In particular implementations, the interface can be configured to come into view over the imagery whenever a user navigates to a particular view of the imagery where a plurality of canonical views is available. The motion of the navigation control interface appearing into the imagery is intended to draw attention to the control interface to inform the user that additional canonical views are available.

In a specific implementation of the method a reflectance map is constructed based on a position and an Euler angle, obtained through a global optimization and used for constructing a reflectance map, of a center of a laser radar corresponding to each frame laser point cloud used for constructing the reflectance map collected in each collection region. This implementation implements the level-by-level pose optimization of laser point clouds used for constructing a reflectance map that are collected in each collection region in an excessively large region, to obtain an accurate position and Euler angle, used for constructing the reflectance map, of a laser radar center corresponding to each frame laser point cloud used for constructing the reflectance map.

A user interface for rotating imagery among a plurality of canonical views of a geographic area of interest is disclosed. The interface includes at least one rotation control icon for rotating the imagery among a plurality of canonical views of the geographic area, and a direction indicating portion that indicates a compass direction associated with the canonical view presented on the display device. In particular implementations, the interface can be configured to come into view over the imagery whenever a user navigates to a particular view of the imagery where a plurality of canonical views is available. The motion of the navigation control interface appearing into the imagery is intended to draw attention to the control interface to inform the user that additional canonical views are available.

In certain embodiments, a system and method for generating a stereoscopic image pair from a 2D satellite or aerial image and a 3D model.

A method is provided for determining angular relationships from a point of interest to a plurality of peripheral points of interest on a map. One or more cost functions from the point of interest to the plurality of the peripheral points of interest on the map are analyzed. A plurality of vectors emanating from the point of interest to the plurality of the peripheral points of interest on a different representation of the map are displayed. Another method is provided for identifying points of interest on a map. Regions of high interest are identified on the map. Regions of low interest are identified on the map. The regions of high interest are expanded on a different representation of the map. The regions of low interest are contracted by an amount proportional to an amount the regions of high interest are expanded on the different representation of the map.

Techniques are described for efficient label insertion and collision handling. A bounding geometry for a label to be graphically displayed on a display screen as part of an electronic map is determined, wherein the bounding geometry comprises a circle. The bounding geometry is inserted into a grid index, wherein the grid index represents a viewport of the electronic map. Disjoint regions of the grid index intersected by the bounding geometry are identified, wherein each disjoint region represents a different portion of the viewport. For each intersected disjoint region, it is identified whether there is at least one collision between the bounding geometry and one or more existing bounding geometries in the disjoint region; and responsive to identifying whether there is at least one collision in the intersected disjoint region, a target opacity of the label is set.

Systems and methods are provided for obtaining and managing remote sensing data (e.g. Earth observation data). A remote sensing platform obtains imagery and other remote sensing data of the Earth and other planetary objects. The remote sensing platform includes the International Space Station, or manned and unmanned spacecraft or aircraft. A sensor captures observation data and transmits the data to ground stations on the Earth. A ground segment receives and stores the data. Users use an order management system to place orders for the observation data, which specify processing parameters for the remote sensing data. The remote sensing data is retrieved from storage is processed according to the parameters to generate a data product. This system provides tools for searching and analyzing the data, and for interacting with the system through an API. The system combines data that is produced by the remote sensing platform and by third parties.