Abstract: A calibration device performs a calibration between a plurality of imaging devices, each of which outputs field-of-view information which is information on a field-of-view of the imaging device itself. The field-of-view information contains a bitmap image and a range image. The calibration device includes: a state estimation part configured to detect, in a field of view of a first imaging device, an image of a second imaging device, and estimate a relative position and a relative attitude of the second imaging device with respect to the first imaging device, based on the detected image; and a transformation information calculation part configured to calculate transformation information between a coordinate system of the first imaging device and a coordinate system of the second imaging device, based on the estimated relative position and relative attitude.

Abstract: An object of the invention is to provide a technique of performing alignment with high accuracy between a plurality of sensors even when a visual field overlapping region at the time of installation of the sensors is small in a case of imaging a subject using the plurality of sensors. An integrated image generation apparatus according to the invention generates a first pseudo visual field image that is able to be acquired by a first sensor in a first pseudo visual field generated by moving a relative position between the subject and the first sensor, and performs the alignment between the first pseudo visual field image and a second sensor image.

Abstract: Monitoring device monitors an optical transmission line by using electric field information signal indicating an electric field of received optical signal. The monitoring device includes a processor. The processor sequentially compensates for first chromatic dispersion among chromatic dispersion of the optical fiber transmission line, nonlinear distortion of the optical fiber transmission line, and remaining chromatic dispersion among the chromatic dispersion in the electric field information signal to generate a reference signal indicating the electric field of the optical signal in the transmitter node. The processor detects, in the electric field information signal, second distortion different from the nonlinear distortion. The processor processes the reference signal based on the second distortion to generate a second reference signal.

Abstract: A characteristics estimation device estimates characteristics of an optical fiber transmission line in an optical transmission system in which an optical signal is transmitted from first node to second node via the optical fiber transmission line. The characteristics estimation device includes a processor. The processor generates, based on electric field information indicating an electric field of the optical signal received by the second node via the optical fiber transmission line, a power profile indicating a relationship between power of the optical signal and dispersion amount corresponding to a transmission distance from the first node or the second node. The processor detects a span forming the optical fiber transmission line by using the power profile. The processor calculates, for the detected span, a dispersion coefficient of the optical fiber transmission line by dividing the dispersion amount estimated based on the power profile by a corresponding span length.

Abstract: A three-dimensional data processing device according to the present invention detects each of a first area at a first time and a second area at a second time as an area including a subject in three-dimensional data, and calculates a difference of the three-dimensional data between the first time and the second time using coordinate transformation between the first area and the second area.

Abstract: An arithmetic apparatus displays a 3D work-target object in a 3D coordinate space on a display device, and receives a motion signal that is a signal representing a motion measured by any one of sensor units. When receiving the motion signal, the arithmetic apparatus identifies the measured motion based on the motion signal. When the identified motion is a motion regarding a spatial shift that is a shift of a viewpoint in the 3D coordinate space of a user, the arithmetic apparatus shifts the viewpoint in the 3D coordinate space of the user in accordance with the identified motion. When the identified motion is a hand motion regarding a work movement with respect to a work target, the arithmetic apparatus outputs output information including information representing the work movement in accordance with the identified motion.

Abstract: An optical network device includes a receiver that receives a polarization multiplexed optical signal and a processor. The processor separates an electric field information signal indicating the polarization multiplexed optical signal into first and second polarization components orthogonal to each other, generates third and fourth polarization components by controlling the first and second polarization components, calculates an evaluation value corresponding to a power of the third or fourth polarization component for each of a plurality of positions on a transmission line, calculates a variation in the evaluation value for a control amount for each of the plurality of positions, and decides whether a first position is a position to be detected based on a result of comparing a variation in an evaluation value for the first position with a variation in an evaluation value for a second position adjacent to the first position.

Abstract: A mobile communication terminal A performs near field communication with another mobile communication terminal B by a near field communication unit and obtains a communication distance with another mobile communication terminal B. An information acquisition unit acquires information on another mobile communication terminal B, information on the mobile communication terminal A, or both of the information when the communication distance to the other mobile communication terminal B is equal to or more than a threshold. An abnormality determination unit determines an abnormal state of the mobile communication terminal A based on information (position information, wearing information, or the like) acquired by the information acquisition unit. When the abnormality determination unit determines that the mobile communication terminal A is in the abnormal state, a lock unit locks the mobile communication terminal A, the other mobile communication terminal or both of those mobile communication terminals.

Abstract: A mobile communication terminal A performs near field communication with another mobile communication terminal B by a near field communication unit and obtains a communication distance with another mobile communication terminal B. An information acquisition unit acquires information on another mobile communication terminal B, information on the mobile communication terminal A, or both of the information when the communication distance to the other mobile communication terminal B is equal to or more than a threshold. An abnormality determination unit determines an abnormal state of the mobile communication terminal A based on information (position information, wearing information, or the like) acquired by the information acquisition unit. When the abnormality determination unit determines that the mobile communication terminal A is in the abnormal state, a lock unit locks the mobile communication terminal A, the other mobile communication terminal B or both of those mobile communication terminals.

Abstract: An optical transmitter includes: a modulator, square law detector, and a processor. The modulator generates an optical signal indicating transmission data. The square law detector detects an intensity of the optical signal using a photodetector and output first intensity data indicating the detected intensity. The processor calculates, based on the transmission data, an electric field of the optical signal generated by the modulator by using parameters pertaining to a state of the modulator. The processor calculates second intensity data indicating the intensity of the optical signal based on the calculated electric field. The processor updates the parameters so as to reduce a difference between the first intensity data and the second intensity data. The processor controls the state of the modulator based on the parameters.

Abstract: An optical network device includes a receiver that receives a polarization multiplexed optical signal and a processor. The processor separates an electric field information signal indicating the polarization multiplexed optical signal into first and second polarization components orthogonal to each other, generates third and fourth polarization components by controlling the first and second polarization components, calculates an evaluation value corresponding to a power of the third or fourth polarization component for each of a plurality of positions on a transmission line, calculates a variation in the evaluation value for a control amount for each of the plurality of positions, and decides whether a first position is a position to be detected based on a result of comparing a variation in an evaluation value for the first position with a variation in an evaluation value for a second position adjacent to the first position.

Abstract: A calibration device performs a calibration between a plurality of imaging devices, each of which outputs field-of-view information which is information on a field-of-view of the imaging device itself. The field-of-view information contains a bitmap image and a range image. The calibration device includes: a state estimation part configured to detect, in a field of view of a first imaging device, an image of a second imaging device, and estimate a relative position and a relative attitude of the second imaging device with respect to the first imaging device, based on the detected image; and a transformation information calculation part configured to calculate transformation information between a coordinate system of the first imaging device and a coordinate system of the second imaging device, based on the estimated relative position and relative attitude.

Abstract: An optical transmitter includes: a modulator, square law detector, and a processor. The modulator generates an optical signal indicating transmission data. The square law detector detects an intensity of the optical signal using a photodetector and output first intensity data indicating the detected intensity. The processor calculates, based on the transmission data, an electric field of the optical signal generated by the modulator by using parameters pertaining to a state of the modulator. The processor calculates second intensity data indicating the intensity of the optical signal based on the calculated electric field. The processor updates the parameters so as to reduce a difference between the first intensity data and the second intensity data. The processor controls the state of the modulator based on the parameters.

Abstract: An optical network device receives an optical signal, to which polarization information is added, from a transmitter via a transmission line. The receiver generates electric-field-information signal of the optical signal. The processor acquires, for respective polarization rotation amounts, the electric-field-information signal during a period specified by the polarization information. The processor calculates, for respective polarization rotation amounts and based on the electric-field-information signal, evaluation values corresponding to powers of the optical signal at a plurality of positions on the transmission line. The processor calculates, for respective positions, variations in the evaluation values corresponding to the polarization rotation amounts.

Abstract: An optical network device receives an optical signal, to which polarization information is added, from a transmitter via a transmission line. The receiver generates electric-field-information signal of the optical signal. The processor acquires, for respective polarization rotation amounts, the electric-field-information signal during a period specified by the polarization information. The processor calculates, for respective polarization rotation amounts and based on the electric-field-information signal, evaluation values corresponding to powers of the optical signal at a plurality of positions on the transmission line. The processor calculates, for respective positions, variations in the evaluation values corresponding to the polarization rotation amounts.

Abstract: An imaging device includes: a modulator configured to modulate the intensity of light, based on a grating pattern; an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image; a complex sensor image processing unit configured to generate, from the sensor image, a complex sensor image comprising a complex number; and a data transmission unit configured to transmit the complex sensor image.

Abstract: An imaging device includes: a modulator configured to modulate the intensity of light, based on a real pattern; an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image; a complex sensor image processing unit configured to generate a complex sensor image including a complex number, from an image obtained by executing predetermined positioning for the sensor image taken through the real pattern; and an image processing unit configured to restore an image, based on an operation with the complex sensor image and data of a pattern for reconstruction.

Abstract: An imaging device includes: an image sensor including a plurality of light-receiving elements, configured to generate a sensor image by photoelectrically converting received light through the light-receiving elements; and a modulating unit configured to modulate the intensity of the light received by the image sensor, through a real pattern provided at a predetermined distance from a light-receiving surface of the image sensor, and the imaging device is characterized in that the width of an aperture of the real pattern provided for the modulating unit is determined, based on the predetermined distance and a two-dimensional size of the image sensor.

Abstract: An imaging device includes: an image sensor including a plurality of light-receiving elements, configured to generate a sensor image by photoelectrically converting received light through the light-receiving elements; and a modulating unit configured to modulate the intensity of the light received by the image sensor, through a real pattern provided at a predetermined distance from a light-receiving surface of the image sensor, and the imaging device is characterized in that the width of an aperture of the real pattern provided for the modulating unit is determined, based on the predetermined distance and a two-dimensional size of the image sensor.

Abstract: An optical transmission device that is provided at a first site includes: an optical transmitter that transmits a first optical signal that includes first ID information to a second site using a first wavelength; and an optical receiver that receives a second optical signal that includes second ID information and that is transmitted using the first wavelength from the second site. When the first ID information matches the second ID information, the optical transmitter transmits a wavelength report that indicates a second wavelength to the second site using the first wavelength. When the optical receiver receives a completion report that indicates the wavelength report has been received at the second site, the optical transmitter transmits an optical signal to the second site using the second wavelength, and the optical receiver ceases to receive an optical signal of the first wavelength from the second site.