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公开(公告)号：US11561085B2
公开(公告)日：2023-01-24
申请号：US16682530
申请日：2019-11-13
Applicant: QUALCOMM Incorporated
Inventor： Biay-Cheng Hseih , Jian Ma , Sergiu Radu Goma
IPC: G01B11/22 , G01S7/491 , G02B27/42 , G06T7/521 , H01L27/146 , G01S7/4915
Abstract: Aspects of the present disclosure relate to depth sensing using a device. An example device includes a light projector configured to project light in a first and a second distribution. The first and the second distribution include a flood projection when the device operates in a first mode and a pattern projection when the device operates in a second mode, respectively. The example device includes a receiver configured to detect reflections of light projected by the light projector. The example device includes a processor connected to a memory storing instructions. The processor is configured to determine first depth information based on reflections detected by the receiver when the device operates in the first mode, determine second depth information based on reflections detected by the receiver when the device operates in the second mode, and resolve multipath interference (MPI) using the first depth information and the second depth information.
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公开(公告)号：US11516391B2
公开(公告)日：2022-11-29
申请号：US17166861
申请日：2021-02-03
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Shen-Ge Wang , Sergiu Radu Goma
Abstract: Systems and techniques are described for large field of view digital imaging. A device's first image sensor captures a first image based on first light redirected from a first path onto a redirected first path by a first light redirection element, and the device's second image sensor captures a second image based on second light redirected from a second path onto a redirected second path by a second light redirection element. A virtual extension of the first path beyond the first light redirection element can intersect with a virtual extension of the second path intersect beyond the second light redirection element. The device can modify the first image and second image using perspective distortion correction, and can generate a combined image by combining the first image and the second image. The combined image can have a larger field of view than the first image and/or the second image.
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公开(公告)号：US10901310B2
公开(公告)日：2021-01-26
申请号：US16253538
申请日：2019-01-22
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma
IPC: G03B21/20 , G02B27/09 , G02F1/1335 , G02B5/02 , G02B5/18
Abstract: Aspects of the present disclosure relate to a device for active depth sensing with an adjustable distribution of light projected. An example device includes a light projector. The light projector includes a light source configured to emit a light and a diffractive element. The diffractive element includes a first diffractive optical element having a first refractive index and configured to project a first distribution of light, a second diffractive optical element having a second refractive index and configured to project a second distribution of light based on a refractive material between the first diffractive optical element and the second diffractive optical element, and the refractive material located between the first diffractive optical element and the second optical element. The refractive material is adjustable to have a second refractive index for the first mode and a third refractive index for the second mode.
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公开(公告)号：US11763425B2
公开(公告)日：2023-09-19
申请号：US17166990
申请日：2021-02-03
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Radu Goma , Biay-Cheng Hseih
CPC classification number: G06T3/4053 , G02B26/0833 , G06T7/593 , G06T7/80 , G06T2207/10028
Abstract: Techniques and systems are provided for high resolution time-of-flight (ToF) depth imaging. In some examples, an apparatus includes a projection system including one or more light-emitting devices, each light-emitting device being configured to illuminate at least one portion of an entire field-of-view (FOV) of the projection system. The entire FOV includes a plurality of FOV portions. The apparatus also includes a receiving system including a sensor configured to sequentially capture a plurality of images based on a plurality of illumination reflections corresponding to light emitted by the one or more light-emitting devices. Each image of the plurality of images corresponds to one of the plurality of FOV portions. An image resolution associated with each image corresponds to a full resolution of the sensor. The apparatus further includes a processor configured to generate, using the plurality of images, an increased resolution depth map associated with the entire FOV.
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公开(公告)号：US10969668B2
公开(公告)日：2021-04-06
申请号：US16253648
申请日：2019-01-22
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma
IPC: G03B21/20 , G02B27/09 , G02F1/1335 , G02B5/02 , G02B5/18
Abstract: Aspects of the present disclosure relate to systems and methods for active depth sensing. An example device includes a light projector. The light projector includes a light source to emit light and a diffractive element. The diffractive element is configured to receive the emitted light that is polarized, project a first distribution of light when the received light has a first polarity, and project a second distribution of light when the received light has a second polarity.
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Patent Agency Ranking
公开(公告)号：US12250465B2
公开(公告)日：2025-03-11
申请号：US17844600
申请日：2022-06-20
Applicant: QUALCOMM Incorporated
Inventor： Shen-Ge Wang , Jian Ma
Abstract: Systems and techniques are described for large field of view imaging. A device's first image sensor captures a first image based on first light from a scene redirected by a light redirection element (e.g., a first prism and/or first reflective surface), and the device's second image sensor captures a second image based on second light from the scene redirected by the light redirection element (e.g., a second prism and/or second reflective surface). The device can modify the first image and/or second image using perspective distortion correction and/or to align one or more properties of two respective depictions of a shared portion of a scene in the two images. The one or more properties can include brightness, contrast, positioning, sharpness, tint, hue, and/or saturation. The device can generate a combined image with a large field of view and smooth transitions by combining the first image and the second image.
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公开(公告)号：US11037966B2
公开(公告)日：2021-06-15
申请号：US15713217
申请日：2017-09-22
Applicant: QUALCOMM Incorporated
Inventor： Biay-Cheng Hseih , Todor Georgiev Georgiev , Jian Ma , Sergiu Goma
IPC: H01L27/146 , G01J1/04 , G01J3/02 , G01J1/16 , G01J3/36 , H01L31/02 , H04N5/374 , H01L31/0216
Abstract: Various embodiments are directed to an image sensor that includes a first sensor portion and a second sensor portion. The second sensor portion may be positioned relative to the first sensor portion such that the second sensor portion may initially detect light entering the image sensor, and some of that light passes through the second sensor portion and may be detected by the first sensor portion. In some embodiments, one more optical filters may be disposed within the image sensor. The one or more optical filters may include at least one of a dual bandpass filter disposed above the second photodetector or a narrow bandpass filter disposed between the first photodetector and the second photodetector.
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公开(公告)号：US11022813B2
公开(公告)日：2021-06-01
申请号：US16378255
申请日：2019-04-08
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma
Abstract: Aspects of the present disclosure relate to a device including a light projector. An example light projector includes a light source that emits a light, a first diffractive optical element block comprising a first diffractive optical element and a first refractive material, and a second diffractive optical element block comprising a second diffractive optical element and a second refractive material. The first diffractive optical element is configured to project a first distribution of light, and the first refractive material is configured to switch the first diffractive optical element between projecting the first distribution of light and being prevented from projecting the first distribution of light. The second diffractive optical element is configured to project a second distribution of light, and the second refractive material is configured to switch the second diffractive optical element between projecting the second distribution of light and being prevented from projecting the second distribution of light.
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公开(公告)号：US20200033713A1
公开(公告)日：2020-01-30
申请号：US16253648
申请日：2019-01-22
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma
Abstract: Aspects of the present disclosure relate to systems and methods for active depth sensing. An example device includes a light projector. The light projector includes a light source to emit light and a diffractive element. The diffractive element is configured to receive the emitted light that is polarized, project a first distribution of light when the received light has a first polarity, and project a second distribution of light when the received light has a second polarity.
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公开(公告)号：US11563873B2
公开(公告)日：2023-01-24
申请号：US16848487
申请日：2020-04-14
Applicant: QUALCOMM Incorporated
Inventor： Jian Ma , Sergiu Goma , Biay-Cheng Hseih
Abstract: Aspects of the present disclosure relate to depth sensing using a device. An example device includes a first light projector configured to project light towards a second light projector configured to project light towards the first light projector. The example device includes a reflective component positioned between the first and second light projectors, the reflective component configured to redirect the light projected by the first light projector onto a first portion of a scene and to redirect the light projected by the second light projector onto a second portion of the scene, and the first and second portions of the scene being adjacent to one another and non-overlapping relative to one another. The example device includes a receiver configured to detect reflections of redirected light projected by the first and second light projectors.
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