公开(公告)号：US20230224599A1

公开(公告)日：2023-07-13

申请号：US17572236

申请日：2022-01-10

申请人： Wisconsin Alumni Research Foundation

发明人： Felipe Gutierrez Barragan ,  Yuhao Liu ,  Atul Ingle ,  Mohit Gupta ,  Andreas Velten

IPC分类号： H04N5/355 ,  H01L27/146

CPC分类号： H04N5/35563 ,  H01L27/14634 ,  H01L27/14645

摘要： In accordance with some embodiments, systems, methods, and media for high dynamic range imaging using single-photon and conventional image sensor data are provided. In some embodiments, the system comprises: first detectors configured to detect a level of photons proportional to incident photon flux; second detectors configured to detect arrival of individual photons; a processor programmed to: receive, from the first detectors, first values indicative of photon flux from a scene with a first resolution; receive, from the second detectors, second values indicative of photon flux from the scene with a lower resolution; provide a first encoder of a trained machine learning model first flux values based on the first values, provide the second encoder of the model second flux values; receive, as output, values indicative of photon flux from the scene; and generate a high dynamic range image based on the third plurality of values.

公开(公告)号：US20190149713A1

公开(公告)日：2019-05-16

申请号：US16230467

申请日：2018-12-21

申请人： DePuy Synthes Products, Inc.

发明人： Laurent Blanquart ,  John Richardson

IPC分类号： H04N5/235 ,  A61B1/045 ,  H04N9/04 ,  H04N5/3745 ,  H04N9/07 ,  H04N5/225 ,  H04N5/355 ,  A61B1/06 ,  H04N13/239

CPC分类号： H04N5/2355 ,  A61B1/045 ,  A61B1/06 ,  H04N5/2256 ,  H04N5/2354 ,  H04N5/35536 ,  H04N5/35554 ,  H04N5/35563 ,  H04N5/37457 ,  H04N9/045 ,  H04N9/07 ,  H04N13/239 ,  H04N2209/042

摘要： The disclosure extends to methods, systems, and computer program products for widening dynamic range within an image in a light deficient environment.

公开(公告)号：US20180366513A1

公开(公告)日：2018-12-20

申请号：US15628304

申请日：2017-06-20

申请人： OMNIVISION TECHNOLOGIES, INC.

发明人： Dajiang Yang ,  Oray Orkun Cellek ,  Duli Mao ,  Xianfu Cheng ,  Xin Wang ,  Bill Phan ,  Dyson Tai

IPC分类号： H01L27/148 ,  H01L27/146 ,  H04N5/378

CPC分类号： H01L27/14831 ,  H01L27/14621 ,  H01L27/14868 ,  H04N5/35563 ,  H04N5/3559 ,  H04N5/37452 ,  H04N5/37457 ,  H04N5/378

摘要： A single-exposure high dynamic range (HDR) image sensor includes a first photodiode and a second photodiode, with a smaller full-well capacity than the first photodiode, disposed in a semiconductor material. The image sensor also includes a first floating diffusion disposed in the semiconductor material and a first transfer gate coupled to the first photodiode to transfer first image charge accumulated in the first photodiode into the first floating diffusion. A second floating diffusion is disposed in the semiconductor material and a second transfer gate is coupled to the second photodiode to transfer second image charge accumulated in the second photodiode into the second floating diffusion. An attenuation layer is disposed between the second photodiode and image light directed towards the single-exposure HDR image sensor to block a portion of the image light from reaching the second photodiode.

公开(公告)号：US20180249136A1

公开(公告)日：2018-08-30

申请号：US15967678

申请日：2018-05-01

申请人： OmniVision Technologies, Inc.

发明人： Gang Chen ,  Duli Mao ,  Dyson Hsin-Chih Tai

IPC分类号： H04N9/083 ,  H04N5/225 ,  H01L27/146 ,  H04N5/369 ,  H04N9/04

CPC分类号： H04N9/083 ,  H01L27/14605 ,  H01L27/1462 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14645 ,  H04N5/2252 ,  H04N5/2253 ,  H04N5/2257 ,  H04N5/35563 ,  H04N5/3696 ,  H04N9/045

摘要： An image sensor includes a substrate, a first set of sensor pixels formed on the substrate, and a second set of sensor pixels formed on the substrate. The sensor pixels of the first set are arranged in rows and columns and are configured to detect light within a first range of wavelengths (e.g., white light). The sensor pixels of the second set are arranged in rows and columns and are each configured to detect light within one of a set of ranges of wavelengths (e.g., red, green, and blue). Each range of wavelengths of the set of ranges of wavelengths is a subrange of said first range of wavelengths, and each pixel of the second set of pixels is smaller than each pixel of the first set of pixels.

公开(公告)号：US20180241955A1

公开(公告)日：2018-08-23

申请号：US15556866

申请日：2016-03-03

申请人： SONY CORPORATION

发明人： Yorito SAKANO ,  Isao HIROTA ,  Motonobu TORII ,  Masaaki TAKIZAWA ,  Junichiro AZAMI ,  Motohashi YUICHI ,  Atsushi SUZUKI

IPC分类号： H04N5/355 ,  H04N5/378

CPC分类号： H04N5/3559 ,  H01L27/14641 ,  H04N5/35563 ,  H04N5/37457 ,  H04N5/378

摘要： The present technology relates to a solid-state imaging device, a method for driving the solid-state imaging device, and an electronic apparatus, the solid-state imaging device being capable of expanding the dynamic range without deteriorating the image quality. The solid-state imaging device includes a pixel array section having a plurality of unit pixels and a drive section. Each of the unit pixels includes a first photoelectric conversion section, a second photoelectric conversion section which is less sensitive than the first photoelectric conversion section, a charge storage section configured to store charges generated by the second photoelectric conversion section, a charge-voltage conversion section, a first transfer gate section configured to transfer charges from the first photoelectric conversion section, and a second transfer gate section configured to combine the potential of the charge-voltage conversion section with the potential of the charge storage section. The present technology is applicable to solid-state imaging devices, for example.

公开(公告)号：US20180227518A1

公开(公告)日：2018-08-09

申请号：US15872986

申请日：2018-01-16

申请人： VAREX IMAGING CORPORATION

发明人： Arundhuti GANGULY ,  Pieter Gerhard ROOS

IPC分类号： H04N5/363 ,  H04N5/357 ,  H04N5/359 ,  H04N5/355 ,  H04N5/3745

CPC分类号： H04N5/363 ,  H04N5/3415 ,  H04N5/35509 ,  H04N5/35563 ,  H04N5/3559 ,  H04N5/3575 ,  H04N5/359 ,  H04N5/3745

摘要： An example imaging system includes a plurality of pixel circuits each having a photodiode, a biasing circuit and a charge-to-voltage converter. The photodiode is configured to generate charges in response to light or radiation. The biasing circuit includes an operational amplifier having an input signal port for receiving a bias reference signal which controls a bias current flowing through an internal circuit of the operational amplifier. The charge-to-voltage converter is configured to accumulate the charges drained by the biasing circuit and convert the accumulated charges into a corresponding output voltage.

公开(公告)号：US20180204882A1

公开(公告)日：2018-07-19

申请号：US15743348

申请日：2016-08-05

申请人： SONY INTERACTIVE ENTERTAINMENT INC.

发明人： Hiroyuki SEGAWA ,  Hidehiko OGASAWARA

IPC分类号： H01L27/30 ,  H01L27/28 ,  H01L51/44 ,  H04N5/341 ,  H04N5/355

CPC分类号： H01L27/307 ,  G01J4/04 ,  H01L27/14 ,  H01L27/146 ,  H01L27/286 ,  H01L31/10 ,  H01L51/448 ,  H04N5/341 ,  H04N5/35563 ,  H04N5/357 ,  H04N5/367 ,  H04N5/374 ,  H04N9/045

摘要： In an imaging element 28, a first light detecting layer 12 includes organic photoelectric conversion films 38a and 38b oriented in a prescribed axial direction so that it detects a polarized component of incident light which is directed parallel to the orientation axis. The first light detecting layer 12 also has an organic photoelectric conversion film oriented in another axial direction which is arranged in a prescribed pattern on a two-dimensional plane. A second light detecting layer 16 disposed under the first light detecting layer 12 includes photoelectric conversion elements 54a and 54b and detects a polarized component which has passed through the first light detecting layer 12 and which is directed perpendicularly to the orientation axis of the organic photoelectric conversion films 38a and 38b.

公开(公告)号：US20180176438A1

公开(公告)日：2018-06-21

申请号：US15381371

申请日：2016-12-16

申请人： Goodrich Corporation

发明人： Robert Brubaker ,  Gavin Dyer ,  Davis A. Lange

IPC分类号： H04N5/235 ,  H04N5/445 ,  G06T3/40

CPC分类号： H04N5/2352 ,  G06T3/40 ,  G06T5/50 ,  G06T2207/10144 ,  G06T2207/20208 ,  H04N5/35563 ,  H04N5/35572 ,  H04N5/35581 ,  H04N5/37206 ,  H04N5/3743 ,  H04N5/44504

摘要： The present disclosure generally relates to HDR imaging techniques, and more specifically to HDR imaging techniques for use when a scene is moving. For time delay integration, the same scene location is repeatedly imaged on sequential rows, allowing for different gain values and/or exposure times to be utilized in different rows. The present disclosure utilizes a static or dynamic selection of gain values and/or exposure times on each row to enable stitching of the rows for high dynamic range.

公开(公告)号：US09998692B1

公开(公告)日：2018-06-12

申请号：US15192550

申请日：2016-06-24

申请人： David J. Griffiths

发明人： David J. Griffiths

IPC分类号： H04N5/235 ,  H04N9/07 ,  H04N5/355 ,  H04N5/247 ,  H04N5/238 ,  G02B27/10 ,  H04N5/359 ,  H04N5/357 ,  H04N5/232 ,  G02B5/20

CPC分类号： H04N5/35563 ,  G02B5/20 ,  G02B5/205 ,  G02B27/10 ,  G02B27/106 ,  H04N5/232 ,  H04N5/23293 ,  H04N5/235 ,  H04N5/2355 ,  H04N5/238 ,  H04N5/247 ,  H04N5/3572 ,  H04N5/3591

摘要： A process is provided for providing high contrast motion picture imagery. The camera system includes a physical architecture that enables multiple sensors to simultaneously acquire a visual scene without parallax or dissimilar exposures. The system architecture enables current off the shelf components to be used to develop the architecture or a specific sensor array to be developed. The architecture includes optical components that split an incident light ray into multiple beams of varying intensity. Each respective split light ray is then attenuated further with neutral density filters for the wavelengths to be observed before the light ray impacts the respective pixel sights. A process has been developed to use the camera system architecture to stochastically recombine the acquired energy and estimate what the original energy was before attenuation. The process involves the development of an optimal non recursive weighting function that can be used and constructed into a lookup table. The weighting function is used to minimize the error associated with symmetrically distributed error sources. A second filtering routine then takes place to remove the nonsymmetrical sources of error such as intraocular flare. This is accomplished by estimating the symmetric errors prior to acquisition and detecting when a sensors radiant exitance estimate does not fall within this symmetrical error bounds. The final reconstructed HDR image is formed once a pool of cameras is determined and a weighting average of the viable guesses is used to estimate the actual scene radiant exitance, or in a non-unitary sense, a photometric radiance. The HDR image can be saved as a high bit depth image or tone-mapped either by the method introduced or by other means and stored to memory via convention 8-bit encoding methods for storage.

公开(公告)号：US20180152642A1

公开(公告)日：2018-05-31

申请号：US15623158

申请日：2017-06-14

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： Xiaopeng LI ,  Gong ZHANG

IPC分类号： H04N5/265 ,  H04N5/247 ,  G06T7/11 ,  G06T5/20

CPC分类号： H04N5/265 ,  G06T5/20 ,  G06T7/11 ,  G06T2207/10016 ,  H04N5/2258 ,  H04N5/2355 ,  H04N5/247 ,  H04N5/35554 ,  H04N5/35563

摘要： A method and an apparatus for shooting an image and a terminal device are provided. The method is applied in a terminal device having a first camera assembly and a second camera assembly, and includes: controlling n adjacent pixel points corresponding to a same filter unit in the second image sensor to be under respective different amounts of exposure; obtaining a first image and a second image of an object respectively by the first image sensor and the second image sensor; performing an image splitting on the second image to obtain a third image having a same number of pixels as the first image; performing an image composition on the third image and the first image to obtain a high dynamic range image of the object.