A system includes: a device capable of surveying a measurement target or emitting laser light; an acceleration sensor capable of detecting an acceleration of the device; an output unit capable of outputting information; a storage unit configured to store: history information on the acceleration; and a correspondence table including a predetermined condition to be detected based on the acceleration and an operation detail in correspondence with each other; and a control unit configured to control output of the output unit based on the operation detail corresponding to the predetermined condition of the device associated in accordance with the history information, if the acceleration detected by the acceleration sensor is determined to correspond to the predetermined condition.

The present technology relates to an observation apparatus, an observation method, and a distance measurement system capable of improving distance measurement accuracy. A first measurement unit that measures a first number of reactions of a light receiving element in response to incidence of photons on a first pixel, a second measurement unit that measures a second number of reactions of the light receiving element in response to incidence of photons on a second pixel, a light emitting unit that emits light to the second pixel, and a light emission control unit that controls the light emitting unit according to a difference between the first number of reactions and the second number of reactions are included. The present technology can be applied to, for example, a distance measurement apparatus that measures a distance to a predetermined object, and can be applied to an observation apparatus that observes a characteristic of a pixel included in the distance measurement apparatus.

A method, system, and computer product that track scanning data acquired by a three-dimensional (3D) coordinate scanner is provided. The method includes storing a digital representation of an environment in memory of a mobile computing device. A first scan is performed with the 3D coordinate scanner in an area of the environment. A location of the first scan is determined on the digital representation. The first scan is registered with the digital representation. The location of the 3D coordinate scanner is indicated on the digital representation at the time of the first scan.

A target of a geodetic system based on global and local identification references. The target comprises a light emitter (LE) for emitting n predetermined modulated light patterns (MLPs) permanently assigned to one of m (m>n) global identification reference (GIR). The target transmits or receives data based on the assigned GIR. The geodetic system further comprises a geodetic surveying instrument comprising an optical sensor (OS) receives the MLPs and digitizes them using a fast sampling analogue-to-digital converter (ADC). A computing system selects one of the targets or receives a selection of the at least one target assigned to a selected GIR. One of n local identification references (LIRs) is temporarily assigned to the selected GIR. The light emitter of the selected target is directed to emit an MLP corresponding with the assigned LIR. Thus, by detection of the assigned LIR, the selected target is identified.

A surveying data processing device includes a point cloud data acquiring unit, a three-dimensional model acquiring unit, a first correspondence relationship determining unit, an extended three-dimensional data generating unit, and a second correspondence relationship determining unit. The point cloud data acquiring unit acquires first point cloud data obtained by laser scanning, at a first viewpoint, and acquires second point cloud data obtained by laser scanning, at a second viewpoint. The three-dimensional model acquiring unit acquires data of a three-dimensional model. The first correspondence relationship determining unit obtains a correspondence relationship between the first point cloud data and the three-dimensional model. The extended three-dimensional data generating unit generates extended three-dimensional data in which the first point cloud data is extended, on the basis of the correspondence relationship. The second correspondence relationship determining unit determines a correspondence relationship between the extended three-dimensional data and the second point cloud data.

A system, apparatus, computer program product, and method use a convolutional neural network to auto-determine a first floor height (FFH) and a FFH elevation (FFE) of a building. The FFH, and FFE of the building are determined with respect to the terrain or surface of the parcel of land on which the building is located. In turn, by knowing the FFH and/or FFE of the building on the parcel, it is possible to use that information while performing a flood risk assessment to a property without requiring a personal inspection of the parcel by a human.

A total station or a theodolite includes scanning functionality for optical surveying of an environment, in which the total station or the theodolite is configured such that direction-dependent active acquisition regions of the receiver are defined depending on the transmission direction of the transmitted radiation to adapt the receiver surface mechanically and/or electronically to a varying imaging position of the received radiation on the overall detector surface.

A system for monitoring a building structure is described. The system comprises a laser source which emits an infrared radiation and an interferometric arrangement which divides the radiation into an object beam and a reference beam. The object beam irradiates the building structure and is scattered by it, while the reference beam interferes with the scattered object beam so as to create a hologram of the building. The system also comprises a sensor which detects a sequence of holograms and a processing unit which reconstructs the evolution in time of deformations or displacements of the building by numerically processing the sequence of holograms. The system—being based on digital holography—offers various advantages compared to known monitoring techniques, for example techniques which make use of seismometers (possibility of remote monitoring, substantial space-time continuity of the monitoring, capacity for detecting a wider range of deformations and displacements).

A surveying device for determining the position of a target, comprising a means for orienting a target axis of the surveying device towards the target point, an angle-measuring functionality for the highly precise detection of the orientation of the target axis, and evaluation means for data storage, a height measuring system for determining a height of the surveying device above the ground by means of triangulation, wherein the height measuring system comprises at least one laser plummet for emitting a laser beam along a standing axis of the surveying device onto a ground point, and a detection unit comprising a line sensor for detecting a diffuse backscattering of the laser beam, and wherein the height measuring system for determining a height of the surveying device above the ground point is designed based on a position of the diffuse backscattering on the line sensor.

The invention provides a laser scanner system, which comprises a laser scanner which includes a distance measuring unit for emitting a distance measuring light, receiving a reflected light, and performing a distance measurement, a scanning unit for rotatably irradiating the distance measuring light, a directional angle detecting unit for detecting an irradiating direction of the distance measuring light, a GNSS device and a control arithmetic unit, and a target which sets a back sight point, wherein the control arithmetic unit has a target scanning mode and a point cloud data measurement mode, and is configured to calculate point cloud data with a global coordinate value and a global coordinate value of the target based on the global coordinate value obtained by the GNSS device, a measurement result obtained by executing the point cloud data measurement mode and a measurement result obtained by executing the target scanning mode.