Abstract: Provided is a floodlight control apparatus including a light receiving part which is provided with a plurality of light receiving elements which receives reflected light of light projected by a light projecting part, and an object detecting part which performs object detection targeted within a distance measurable range which is a range where the light receiving part is operable to receive the reflected light. The floodlight control apparatus further includes a control part which performs control of differentiating a light projection amount provided by the light projecting part in accordance with detection presence/absence of an object performed by the object detecting part and in a case where the object detecting part detects the object, differentiating a projection mode of the light projecting part between a detection region and a non-detection region of the object.

Abstract: The present disclosure generally pertains to time-of-flight demodulation circuitry configured to: determine a light event pattern with an event-based light detection element of a plurality of event-based light detection elements; and determine, for a demodulation element of a plurality of demodulation elements, a timing for a demodulation signal to be applied to the demodulation element based on the light event pattern, wherein the demodulation element is associated with the event-based light detection element.

Abstract: A pixel is appropriately interpolated regarding a histogram image in which a distance histogram is allocated to each pixel position. A signal processing apparatus according to the present technology includes a histogram generation unit that inputs a histogram image in which a distance histogram indicating results of a plurality of times of distance measurement as frequency information for each distance is allocated to each pixel position and generates a distance histogram of an interpolation target position in the histogram image on the basis of distance histograms of a plurality of pixel positions near the interpolation target position.

Abstract: Ranging devices and light reception methods wherein the modulation frequencies of a light source and a ToF sensor are synchronized are disclosed. In one example, a ranging device includes a reception section that generates, by executing a synchronization process on a transmission signal transmitted from a separate device through wireless communication, a signal synchronized with a synchronization clock signal of the separate device, a reference clock generation section that generates, on the basis of the synchronization clock signal, a reference clock signal to be used as a reference for light emission from the light source, and a ToF sensor that receives, on the basis of the reference clock signal, reflection light resulting from irradiation light applied from the light source and reflected by an object.

Abstract: Distance measuring is disclosed. In one example, a distance measuring device includes a ToF (time of flight) sensor, a distance calculation unit, a mode switching unit, and an estimation unit. The ToF sensor has a sensor clock that controls a photographing timing. The sensor clock is a device-specific clock different from a light source clock that controls a modulation frequency of a light emission pulse of a light source. The ToF sensor performs photographing by reflecting, on a surface of an object, emission light of the light source that emits pulse light. The distance calculation unit calculates a distance to the object based on image data captured by the ToF sensor. The estimation unit estimates the modulation frequency of the light source generated from the light source clock based on pieces of image data captured in an operation mode switched by the mode switching unit.

Abstract: A measurement apparatus (1a) according to an embodiment includes: a first pixel (10); a light source (131); a control unit (150) that controls emission of light emitted from the light source by generating light emission commands that allow the light source to emit light; a first measuring unit (133ref) that measures a first time period between a first light emission command timing at which the control unit generates a first light emission command out of the light emission commands and a light emission timing at which the light source emits light in accordance with the first light emission command; second measuring units (1331, 1332, 1333, and . . . ) each of which measures a second time period between a second light emission command timing at which the control unit generates a second light emission command out of the light emission commands and a time at which the light is received by the first pixel; and generating units (1401, 1402, 1403, and . . .

Abstract: Provided are an imaging device and a monitoring device capable of accurately measuring a distance and a shape of a region of an object that is difficult to measure by one distance measuring camera. Provided is an imaging device including a sensor unit configured to irradiate an object with light and detect the light reflected by the object; a distance calculation unit configured to calculate a distance to the object on the basis of sensing data of the sensor unit; a specular reflector located on an opposite side of the sensor unit across the object; and a correction unit configured to correct an error included in the calculated distance, the error being caused by an interference between the light following a first path from the sensor unit toward the object and the light following a second path from the sensor unit, reflected by the specular reflector, and going toward the object.

Abstract: The flow rate of light scattering fluid is measured more easily and at a higher speed. A flow rate measuring method according to the present disclosure includes: generating two or more speckle images by continually imaging light scattering fluid to be measured, while defining time shorter than spatial correlation disappearance time corresponding to time in which spatial correlation between speckle patterns generated by the light scattering fluid disappears as exposure time, at a time interval shorter than the spatial correlation disappearance time; and calculating direction and speed of flow of the light scattering fluid from time variation of the speckle patterns between the two or more speckle images, in which the speckle images are imaged by using an imaging device mounted with an area sensor and a pixel group of a part of the area sensor or by using an imaging device mounted with a line sensor.

Abstract: By making power consumption required for light projection efficient regarding an optical distance measurement system, low power consumption is devised. A floodlight control apparatus according to the present technology includes: a light receiving part which is provided with a plurality of light receiving elements which receives reflected light of light projected by a light projecting part; an object detecting part which performs object detection targeted within a distance measurable range which is a range where the light receiving part is operable to receive the reflected light; and a control part which performs control of differentiating a light projection amount provided by the light projecting part in accordance with detection presence/absence of an object performed by the object detecting part and in a case where the object detecting part detects the object, differentiating a projection mode of the light projecting part between a detection region and a non-detection region of the object.

Abstract: To achieve a configuration of controlling a light source unit having a plurality of light sources and a rangefinder (camera) by individual clocks to allow for setting the light sources at optional positions. The output light of a plurality of light sources of the light source unit is reflected from an object's surface, and a ToF sensor captures the reflected light to calculate the distance to the object. A sensor clock that controls the image capturing timing of the ToF sensor is the clock specific to the rangefinder, which is different from a light source unit clock that controls the light emission timing of the light sources of the light source unit. The rangefinder creates a difference calculation formula of a plurality of distance calculation formulas used to calculate the distance from each light source to the rangefinder to calculate the distance to the object using the created difference calculation formula.

Abstract: To reduce power consumption in an apparatus for measuring a distance on the basis of a phase difference between light beams. A distance measuring apparatus includes: a phase difference detecting section; and a distance measuring section. In the distance measuring apparatus, the phase difference detecting section detects a phase difference between light beams from a pair of external light sources. In addition, in the distance measuring apparatus, the distance measuring section acquires any one of a distance from one of the pair of external light sources and an interval between the pair of external light sources as known data and measures a distance from another of the pair of external light sources on a basis of the known data and the phase difference.

Abstract: The flow rate of light scattering fluid is measured more easily and at a higher speed. A flow rate measuring method according to the present disclosure includes: generating two or more speckle images by continually imaging light scattering fluid to be measured, while defining time shorter than spatial correlation disappearance time corresponding to time in which spatial correlation between speckle patterns generated by the light scattering fluid disappears as exposure time, at a time interval shorter than the spatial correlation disappearance time; and calculating direction and speed of flow of the light scattering fluid from time variation of the speckle patterns between the two or more speckle images, in which the speckle images are imaged by using an imaging device mounted with an area sensor and a pixel group of a part of the area sensor or by using an imaging device mounted with a line sensor.

Abstract: Provided are an imaging device and a monitoring device capable of accurately measuring a distance and a shape of a region of an object that is difficult to measure by one distance measuring camera. Provided is an imaging device including a sensor unit configured to irradiate an object with light and detect the light reflected by the object; a distance calculation unit configured to calculate a distance to the object on the basis of sensing data of the sensor unit; a specular reflector located on an opposite side of the sensor unit across the object; and a correction unit configured to correct an error included in the calculated distance, the error being caused by an interference between the light following a first path from the sensor unit toward the object and the light following a second path from the sensor unit, reflected by the specular reflector, and going toward the object.

Abstract: A method to improve convenience for providing a coupon with the use of a spatial or temporal modulation component added to light that can be captured while a service is being used. Provided is a method for providing a coupon by using a terminal device and at least one server configured to provide a service to the terminal device, the method includes capturing light while the service is being used, transmitting key information based on a spatial or temporal modulation component of the light to the server, and receiving coupon information related to the service transmitted from the server by using the terminal device; and receiving the key information from the terminal device and issuing the coupon information in accordance with the key information by using the server.

Abstract: There is provided an information processing apparatus that includes an image acquisition unit that acquires a captured image, a key information acquisition unit that acquires key information for extracting a light temporal modulation component included in the captured image, and a modulation component extraction unit that extracts the modulation component from the captured image based on the key information.

Abstract: In an electronic apparatus that captures images, characters in an image are accurately recognized. The electronic apparatus includes an imaging section, a distance measurement section, a shape estimation section, and a coordinate conversion section. The imaging section images an object and captures image data. The distance measurement section measures distances from the imaging section to a plurality of measurement points on a surface of the object. The shape estimation section estimates a shape of the object from the measured distances. The coordinate conversion section performs coordinate conversion on the image data, the coordinate conversion including converting three-dimensional coordinates on the surface of the object into plane coordinates on a predetermined reference plane on the basis of the estimated shape.

Abstract: An information processing system including: an information processing device including a light source, and a visible light communication control unit configured to control a light emission state of the light source on the basis of identification information of the information processing device and transmit the identification information; and an information processing terminal including an imaging unit, an identification information acquiring unit configured to perform image processing on an image of the light source captured by the imaging unit and acquire the identification information of the information processing device, a display control unit configured to control display of an input screen for input of an operation to the information processing device on the basis of the identification information, and an input information transmitting unit configured to transmit input information input to the input screen to the information processing device.

Abstract: The present technology relates to an information processing device, an information processing method, a program, and an information processing system realizing smooth entrance with an electronic ticket. ID information used for determining admittance or non-admittance of entrance with an electronic ticket is extracted from a captured image of a superimposition image which contains a predetermined image and the ID information superimposed on the predetermined image to determine admittance or non-admittance of entrance with the electronic ticket on the basis of the electronic ticket and the ID information. For example, the present technology is applicable to an entrance gate system or others provided to check entrance into an event site or the like.

Abstract: One information processing device may comprise circuitry configured to cause an image to be displayed on a display together with a superimposed light component having a characteristic that changes as a function of time and represents a code to be processed by a receiving terminal. Another information processing device may comprise circuitry configured to process image data from an image sensor, which image data represents an image generated on a display together with a superimposed light component having a characteristic that changes as a function of time, to identify a code represented by the superimposed light component.

Abstract: [Object] To provide an image processing device capable of outputting audio acquired as an audio data signal by capturing an arbitrary image. [Solution] Provided is an image processing device, including: a separation unit that separates a flicker pattern from an image obtained by capturing, at multiple exposure times, an image containing a scene that emits light on a basis of a flicker pattern converted from an audio signal; and a conversion unit that converts the separated flicker pattern to an original audio signal.