Abstract: A time of flight sensor system having a time of flight sensor layer is disclosed. The system includes a covering window layer spaced apart from the time of flight sensor layer, with an exit window and an entrance window, an emitting element in the time of flight sensor layer that transmits an emission signal, a receiving element in the time of flight sensor layer that receives a reception signal, one or more opaque walls, and light baffles incorporated into the one or more opaque walls. The one or more opaque walls extend at least a portion of the distance from the time of flight sensor layer to the covering window layer. The one or more opaque walls reduce the reflection backscatter of emission signals and reception signals. The light baffles in the one or more opaque walls reduce backscatter of emission signals and reception signals.

Abstract: A distance measuring module includes a light emitter, a reflecting unit and a light receiver. The light emitter is configured to emit first light, wherein an object reflects the first light to form second light. The reflecting unit is configured to perform a movement to reflect the first light or the second light. The light receiver is configured to receive the second light for calculating a distance between the distance measuring module and the object. An axis is oriented at a first angle or a second angle with respect to a baseline when the reflecting unit is performing the movement. When the axis is oriented at the first angle, the first light is reflected to the object by the reflecting unit. When the axis is oriented at the second angle, the second light is reflected to the light receiver by the reflecting unit.

Abstract: In one general aspect, a non-transitory computer-readable storage medium can be configured to store instructions that when executed cause a processor to perform a process. The process can include transmitting a plurality of laser beams at a feature on an object, and calculating a candidate shape parameter representing the feature based on a plurality of laser beams reflected from the feature. The process can include determining that the candidate shape parameter matches a measured shape parameter stored in a shape parameter database and representing a measured feature of the object, and identifying an absolute location corresponding with the measured feature of the object.

Abstract: A road boundary detection system includes: an optical scanner configured to emit a light to an object to acquire measurement data reflected from the object; and a processor configured to extract a plurality of straight lines in order of a priority on each of the plurality of straight lines when a higher priority is given to a straight line including more of the contact points, based on the measurement data, configured to calculate a score of each straight line by assigning a score to the contact point included in the extracted straight lines and by assigning a score to a non-contact point included in other straight line having the same angle as the contact point, and configured to select a road boundary according to the priority of the calculated score of each straight lines.

Abstract: In one embodiment, an imaging device includes a light-emitting device, a driving circuit, a return single-photon avalanche diode (SPAD) array and readout circuitry. The driving circuit generates a driving signal, and the light-emitting device generates an optical pulse based on the driving signal. The return SPAD array is configured to receive a first portion of the optical pulse that is reflected by an object in an image scene. The readout circuitry receives a signal indicative of the received first portion of the optical pulse, and a signal indicative of the driving signal, and determines a distance between the imaging device and the object based on a difference between a time of receiving the signal indicative of the received first portion of the optical pulse and a time of receiving the signal indicative of the driving signal.

Abstract: The invention relates to a HDR pixel comprising a photo-sensitive element; a detector node connected to the photo-sensitive element; a reset switch connected to the detector node for resetting the detector node to a predetermined voltage; a buffer amplifier having an input connected to the detector node; a selecting transistor operable to select said pixel during a read out process; an intrinsic parasitic capacitance originated from at least one of the photo-sensitive element, the detector node, the reset switch, the buffer amplifier, the selecting transistor and operable to store the minority carriers generated by the photo-sensitive element; characterized in that the pixel further comprises a dual-mode capacitance having an input connected to the detector node and being operable in storing and destoring modes, for storing the generated minority carriers while being in the storing mode and destoring the minority carriers into the parasitic capacitance, while being in the destoring mode.

Abstract: A line-of-sight (LOS) speed calculator obtains a LOS speed of particles traveling with the atmosphere. A LOS direction corrector corrects a LOS direction using attitude angle information. A wind vector calculator calculates a wind vector expressed with a wind direction and wind speed of the atmosphere at a measurement point by using LOS data including a set of the corrected LOS direction corrected by the LOS direction corrector and the LOS speed obtained by the LOS speed calculator. A shift detection range changer changes a shift detection range that is a divided range of the received signal in the time-domain used for obtaining the Doppler frequency shift to correspond to a range of the received signal reflected by particles at altitudes within a predetermined range including an altitude of the measurement point, on the basis of the attitude angle information.

Abstract: A multi-wavelength array lidar system and a method of designing an array lidar system include arranging a plurality of lasers in an array to transmit a respective plurality of beams, arranging a lens to disperse the plurality of beams at a respective plurality of angles, and arranging a band pass filter to filter a plurality of reflections received at a respective plurality of incident angles resulting from the plurality of beams transmitted by the plurality of lasers at a respective plurality of transmit angles. Selecting a transmit wavelength of each of the plurality of beams is based on the respective plurality of transmit angles to ensure that a receive wavelength of each of the plurality of reflections is within a narrower range than a range of the transmit wavelengths.