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公开(公告)号：US12105197B2
公开(公告)日：2024-10-01
申请号：US17144119
申请日：2021-01-07
发明人： Yunpeng Song
摘要： A method includes acquiring range data and intensity data of a first image frame captured at a high illumination, the first image frame including an image of a high-reflectivity object and a low-reflectivity object, the image of the high-reflectivity object being saturated; acquiring range data intensity data of a second image frame captured at a reduced illumination, the second image frame including an image of the high-reflectivity object, with the low-reflectivity object being invisible; and identifying a saturation region on the first image frame. The method further includes performing a cross-correlation operation between the identified saturation region and a corresponding region on the second image frame to identify a region in the saturation region, the identified region corresponding to an expected size of the high-reflectivity object on the first image frame; and replacing the identified region in the saturation region with a corresponding region in the second image frame.
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公开(公告)号：US20240280673A1
公开(公告)日：2024-08-22
申请号：US18571205
申请日：2022-06-16
发明人： Gaelle Palmigiani , Yvon Cazaux , Alexis Rochas , Francois Ayel
IPC分类号： G01S7/481 , G01S7/4914 , G01S7/4915 , G01S17/32 , G01S17/894
CPC分类号： G01S7/4816 , G01S7/4914 , G01S7/4915 , G01S17/894 , G01S17/32
摘要： A sensor of a reflected light signal for acquiring a depth map of the scene. Each depth pixel of the sensor includes at least one pair of photosites. Each pair of photosites incudes a first photosite of a first semiconductor substrate and a second photosite of a second substrate having the first substrate stacked thereon. Each pixel is configured to acquire, for each pair of photosites of the pixel, at least one sample of charges simultaneously photogenerated in photosensitive elements of the photosites of said pair.
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公开(公告)号：US20240264310A1
公开(公告)日：2024-08-08
申请号：US18614789
申请日：2024-03-25
发明人： KAZUYA HISADA , YUMIKO KATO , KOHEI KIKUCHI , YASUHISA INADA
摘要： A data processing device includes: a storage device storing measurement data, including position information and velocity information about multiple measurement points in a space; and a processing circuit. The processing circuit acquires the measurement data from the storage device, recognizes measurement points on a stationary object from among the multiple measurement points on the basis of the velocity information, and generates point cloud data including the position information about the measurement points on a stationary object on the basis of a result of the recognition.
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公开(公告)号：US20240264288A1
公开(公告)日：2024-08-08
申请号：US18499233
申请日：2023-11-01
发明人： Chi-Feng Lee
IPC分类号： G01S7/4911 , G01S7/4915 , G01S17/32
CPC分类号： G01S7/4911 , G01S7/4915 , G01S17/32
摘要： The invention provides a time-of-flight ranging system and a time-of-flight ranging method. The time-of-flight ranging system includes a time-of-flight ranging sensor, a decoder, a computing processor, and a fusion processor. The time-of-flight ranging sensor receives a first reflected light and a second reflected light reflected by a sensing target, and generates first raw data and second raw data according to the first reflected light. The decoder generates a first input according to the first raw data and generates a second input according to the second raw data. The computing processor generates a first output and a second output according to the first input and the second input. The fusion processor performs a weighted average operation according to a first amplitude, a second amplitude, the first output, and the second output to generate depth information.
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公开(公告)号：US20240248177A1
公开(公告)日：2024-07-25
申请号：US18601761
申请日：2024-03-11
申请人： AEVA, INC.
CPC分类号： G01S7/4808 , G01S7/4817 , G01S17/08 , G01S17/32 , G01S17/58
摘要： A method of operating a LIDAR system includes determining, from a first signal in a frequency domain, signal intensities for a first plurality of frequencies around a first peak frequency, determining, from a second signal in the frequency domain, signal intensities for a second plurality of frequencies around a second peak frequency, and performing a convolution of the signal intensities for the first plurality of frequencies and the signal intensities for the second plurality of frequencies. The method further includes performing a correction of the first peak frequency based on a third peak frequency identified from the convolution to obtain a corrected first peak frequency and determining range and velocity information associated with a target based on the corrected first peak frequency.
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公开(公告)号：US12019186B2
公开(公告)日：2024-06-25
申请号：US16829125
申请日：2020-03-25
发明人： Nir Osiroff , Matityahu Shani , David Elooz , Smadar David Raly
IPC分类号： G01C3/08 , B60S1/02 , B81B3/00 , G01H1/00 , G01S7/48 , G01S7/481 , G01S7/484 , G01S7/4863 , G01S7/4911 , G01S7/4914 , G01S7/497 , G01S17/06 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/58 , G01S17/89 , G01S17/931 , G02B26/12
CPC分类号： G01S7/4817 , B60S1/02 , B81B3/0018 , G01H1/00 , G01S7/4802 , G01S7/4808 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/484 , G01S7/4863 , G01S7/4911 , G01S7/4914 , G01S7/497 , G01S17/06 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/58 , G01S17/89 , G01S17/931 , B81B2201/04 , G01S2007/4975 , G02B26/122
摘要： In some embodiments, a LIDAR system may include at least one processor configured to control at least one light source for projecting light toward a field of view and receive from at least one first sensor first signals associated with light projected by the at least one light source and reflected from an object in the field of view, wherein the light impinging on the at least one first sensor is in a form of a light spot having an outer boundary. The processor may further be configured to receive from at least one second sensor second signals associated with light noise, wherein the at least one second sensor is located outside the outer boundary; determine, based on the second signals received from the at least one second sensor, an indicator of a magnitude of the light noise; and determine, based on the indicator the first signals received from the at least one first sensor and, a distance to the object.
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公开(公告)号：US20240192365A1
公开(公告)日：2024-06-13
申请号：US18553055
申请日：2021-12-02
申请人： XTIA LTD
发明人： Kazuhiro Imai , Motonobu Kourogi
IPC分类号： G01S17/32 , G01S7/4911 , G02F1/35
CPC分类号： G01S17/32 , G01S7/4911 , G02F1/353
摘要： A purpose of the present invention is to provide an optical comb generation device capable of obtaining an absolute distance result with high accuracy by reducing a phase offset by a signal transmission path of an object other than an object to be measured, for example in an optical comb distance meter for measuring a distance from a time difference between an interference signal of a measuring light and an interference signal of a reference light. A drive control unit controls to output M (M is an integer of two or more) types of optical combs with mutually different modulation frequencies in which N (N is an integer of three or more) types of modulation frequencies are switched cyclically, by respectively modulating a phase or an intensity periodically, from M optical comb generators, by supplying driving signals to the M optical comb generators comprised in an optical comb generation unit.
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公开(公告)号：US20240176021A1
公开(公告)日：2024-05-30
申请号：US18516926
申请日：2023-11-21
摘要： This application discloses a LiDAR and a mobile device, where LiDAR includes a lens and a photonic chip, an optical axis of the lens extends along a first preset direction; the photonic chip and the lens are spaced apart along the first preset direction, the photonic chip includes a cladding layer and multiple receiving waveguide core layers, all the receiving waveguide core layers are located at an end of the cladding layer that is closer to the lens and are spaced apart along a second preset direction, each receiving waveguide core layer has a first end surface and a second end surface opposite to each other, the first end surface is closer to the lens than the second end surface; and there is a distance between a first end surface of at least one receiving waveguide core layer and a focal plane of the lens.
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公开(公告)号：US11994628B2
公开(公告)日：2024-05-28
申请号：US17099220
申请日：2020-11-16
发明人： Changho Chong
IPC分类号： G01S7/4911 , G01S7/481 , G01S17/32
CPC分类号： G01S7/4911 , G01S7/4817 , G01S17/32
摘要： A LIDAR sensing system includes a light source that is controlled to project a collimated beam at various wavelengths. An interferometer receives the collimated beam and projects an object beam corresponding to the collimated beam at a diffraction grating. The object beam is diffracted from the diffraction grating at different angles corresponding to the wavelength of the collimated beam, creating a two dimensional scan along a first axis. The object beam is also controlled along a second axis that is perpendicular to the first axis. As a result, the LIDAR sensing system generates a horizontal and vertical scan (e.g., a three-dimensional scan) of the external environment.
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公开(公告)号：US11977157B2
公开(公告)日：2024-05-07
申请号：US17038647
申请日：2020-09-30
发明人： Kiyoshi Onohara , Hiroki Goto
摘要： The optical distance measurement device is configured to include an optical interference unit for separating the reflected light into a reflected light of a first polarized wave and a reflected light of a second polarized wave, extracting first and second components orthogonal to each other from an interference light of the reflected light of the first polarized wave and the reference light, and extracting third and fourth components orthogonal to each other from an interference light of the reflected light of the second polarized wave and the reference light, and a polarization rotation unit for acquiring one or more components of horizontal and vertical components of a polarized wave by rotating a polarization angle of a first complex signal having the first and second components and a polarization angle of a second complex signal having the third and fourth components, so that a distance calculation unit calculates, on the basis of the components acquired by the polarization rotation unit, a difference between a frequency of the reflected light and a frequency of the reference light, and calculates a distance to a measurement target from the difference.
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