An aspect of the invention is a map generation system including a three-dimensional data acquisition unit configured to acquire three-dimensional data from a scanning distance measurement sensor measuring a distance to a target to be measured, an operation information acquisition unit configured to acquire operation information representing an operation of a work machine occurring in a cycle of update of the three-dimensional data by the scanning distance measurement sensor, a correction amount calculation unit configured to calculate a correction amount of each measurement point of the three-dimensional data based on the operation information, and a correction processing unit configured to apply the correction amount to each measurement point of the three-dimensional data to correct the three-dimensional data.

An aspect of the invention is a map generation system including a three-dimensional data acquisition unit configured to acquire three-dimensional data from a scanning distance measurement sensor measuring a distance to a target to be measured, an operation information acquisition unit configured to acquire operation information representing an operation of a work machine occurring in a cycle of update of the three-dimensional data by the scanning distance measurement sensor, a correction amount calculation unit configured to calculate a correction amount of each measurement point of the three-dimensional data based on the operation information, and a correction processing unit configured to apply the correction amount to each measurement point of the three-dimensional data to correct the three-dimensional data.

A distance measuring camera disclosed to an embodiment includes an image sensor, a light source, a first lens portion including a plurality of lenses disposed on the light source, and a driving member for moving the light source or the first lens portion in at least one direction of first and second directions perpendicular to an optical axis of the first lens portion, wherein output light emitted from the light source passes through the first lens portion and form a field of illumination (FOI) region including a plurality of dot patterns arranged in two-dimension in a region spaced apart from the first lens portion, wherein the driving member controls a position of the FOI region to be located in first or second region, wherein when the driving member moves the position of the FOI region from the first region to the second region, a first dot pattern located at one end of the plurality of dot patterns is moved outward relative to the first region than a second dot pattern located at the other end of the plurality of dot patterns.

A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body provided at a known distance from a lower end of the monopod and at a known angle with respect to an axis of the monopod and having a reference optical axis, wherein the surveying instrument main body performs an image pickup of an object to be measured and scans the object to be measured by a closed loop scan pattern respectively at a pre-rotation and a post-rotation of the surveying instrument main body, obtains cross points of a locus of a scan pattern of the pre-rotation and the post-rotation, obtains deflection angles of the cross point with respect to the reference optical axis of the pre-rotation and the post-rotation, and calculates a rotation angle of the surveying instrument main body based on a deviation between both of the deflection angles.

A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body provided at a known distance from a lower end of the monopod and at a known angle with respect to an axis of the monopod and having a reference optical axis, wherein the surveying instrument main body performs an image pickup of an object to be measured and scans the object to be measured by a closed loop scan pattern respectively at a pre-rotation and a post-rotation of the surveying instrument main body, obtains cross points of a locus of a scan pattern of the pre-rotation and the post-rotation, obtains deflection angles of the cross point with respect to the reference optical axis of the pre-rotation and the post-rotation, and calculates a rotation angle of the surveying instrument main body based on a deviation between both of the deflection angles.

The present invention discloses a laser range finder for two-color switching display, comprising a monocular telescope, a laser light emitting system, a laser receiver and an OLED liquid crystal display (LCD) imaging system, wherein the monocular telescope comprises an objective lens, a roof half penta prism, a cemented prism, an eyepiece and an LCD unit; laser light emitted by the laser light emitting system is emitted onto an object to be measured, and the reflected back laser light is received by the laser receiver after passing through the objective lens, the roof half penta prism and the cemented prism; and light emitted by the OLED LCD imaging system is imaged on the focal plane of the eyepiece through the cemented prism. The present invention can achieve two-color display of the laser range finder, meeting the requirements for use in a variety of conditions.

An example method includes generating a graphical representation of a point cloud of an environment overlaid on a video stream of the environment. The method further includes receiving a first selection of a first point pair, the first point pair including a first virtual point of the point cloud and a first real point of the environment, the first real point corresponding to the first virtual point. The method further includes receiving a second selection of a second point pair, the second point pair including a second virtual point of the point cloud and a second real point of the environment, the second real point corresponding to the second virtual point. The method further includes aligning the point cloud to the environment based at least in part on the first point pair and the second point pair and updating the graphical representation based at least in part on the aligning.

An arbitrary current waveform generator operates by oversampling an input clock signal, and decimating the oversampled clock signal to a decimated clock signal. The oversampled clock signal can be provided as a clock signal to a shift register preloaded with digital values corresponding to samples of a selected waveform to provide as output, and the decimated clock signal can be used to maintain phase synchronization with the input clock signal. Digital output of the shift register is provided to a digital to analog converter, output from which may be used to drive a current-controlled electronic circuit element.

Aspects of the disclosure relate to providing sensor data on a display of a vehicle. For instance, data points generated by a lidar sensor may be received. The data points may be representative of one or more objects in an external environment of the vehicle. A scene including a representation of the vehicle from a perspective of a virtual camera, a first virtual object corresponding to at least one of the one or more objects, and a second virtual object corresponding to at least one object identified from pre-stored map information may be generated. Supplemental points corresponding to a surface of the at least one object identified from the pre-stored map information may be generated. A pulse including at least some of the data points generated by the sensor and the supplemental points may be generated. The scene may be displayed with the pulse on the display.

Aspects of the disclosure relate to providing sensor data on a display of a vehicle. For instance, data points generated by a lidar sensor may be received. The data points may be representative of one or more objects in an external environment of the vehicle. A scene including a representation of the vehicle from a perspective of a virtual camera, a first virtual object corresponding to at least one of the one or more objects, and a second virtual object corresponding to at least one object identified from pre-stored map information may be generated. Supplemental points corresponding to a surface of the at least one object identified from the pre-stored map information may be generated. A pulse including at least some of the data points generated by the sensor and the supplemental points may be generated. The scene may be displayed with the pulse on the display.