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公开(公告)号：US20140267822A1
公开(公告)日：2014-09-18
申请号：US14203917
申请日：2014-03-11
Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS
Inventor： Gregory Roffet
IPC: H04N5/225
CPC classification number: H04N5/225 , G06T5/009 , G06T5/40 , G06T2207/20208
Abstract: Generating by a digital processing device, of a first digital image from a second digital image, by: for each pixel of the second image, determining a pixel luminance; dividing the interval ranging from the lowest to the highest luminance into a plurality of sub-intervals; and determining the value of at least one pixel of the first image by multiplying the value of a pixel of the second image by a gain determined by interpolation by taking into account the distance of the pixel luminance of the second image to the limits of the sub-interval containing this luminance.
Abstract translation: 通过以下方式由数字处理装置产生来自第二数字图像的第一数字图像：对于第二图像的每个像素，确定像素亮度; 将从最低亮度到最高亮度的间隔划分成多个子间隔; 以及通过将所述第二图像的像素的值乘以由所述第二图像确定的增益乘以所述第二图像的像素亮度与所述子像素的极限的距离来确定所述第一图像的至少一个像素的值 -interval包含这个亮度。
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12.发明公开公开(公告)号：US20230362511A1
公开(公告)日：2023-11-09
申请号：US18353665
申请日：2023-07-17
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Gregory Roffet , Pascal Mellot
IPC: H04N25/71 , H04N25/46 , H04N25/583
CPC classification number: H04N25/745 , H04N25/46 , H04N25/583
Abstract: The image sensor includes an array of photosensitive pixels comprising at least two sets of at least one pixel, control circuit configured to generate at least two different timing signals and adapted to control an acquisition of an incident optical signal by the pixels of the array, and distribution circuit configured to respectively distribute the at least two different timing signals in the at least two sets of at least one sensor, during the same acquisition of the incident optical signal.
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公开(公告)号：US11750948B2
公开(公告)日：2023-09-05
申请号：US17456846
申请日：2021-11-29
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Gregory Roffet , Pascal Mellot
IPC: H04N25/71 , H04N25/46 , H04N25/583
CPC classification number: H04N25/745 , H04N25/46 , H04N25/583
Abstract: The image sensor includes an array of photosensitive pixels comprising at least two sets of at least one pixel, control circuit configured to generate at least two different timing signals and adapted to control an acquisition of an incident optical signal by the pixels of the array, and distribution circuit configured to respectively distribute said at least two different timing signals in said at least two sets of at least one sensor, during the same acquisition of the incident optical signal.
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Patent Agency Ranking
公开(公告)号：US20220174234A1
公开(公告)日：2022-06-02
申请号：US17456846
申请日：2021-11-29
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Gregory Roffet , Pascal Mellot
Abstract: The image sensor includes an array of photosensitive pixels comprising at least two sets of at least one pixel, control circuit configured to generate at least two different timing signals and adapted to control an acquisition of an incident optical signal by the pixels of the array, and distribution circuit configured to respectively distribute said at least two different timing signals in said at least two sets of at least one sensor, during the same acquisition of the incident optical signal.
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公开(公告)号：US20210183018A1
公开(公告)日：2021-06-17
申请号：US17112341
申请日：2020-12-04
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Cedric Tubert , Jeremie Teyssier , Gregory Roffet , Stephane Drouard
Abstract: In an embodiment, a method includes: receiving data signals from a plurality of pixels of an array of pixels; generating a plurality of signal-to-noise ratios by determining signal-to-noise ratios for each respective pixel of the plurality of pixels on the basis of the data signals received from the respective pixel; and filtering the data signals received from each pixel of the plurality of pixels by using an adaptive filter configured on the basis of the plurality of the signal-to-noise ratios to generate filtered data signals.
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公开(公告)号：US09998693B2
公开(公告)日：2018-06-12
申请号：US15272206
申请日：2016-09-21
Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS
Inventor： Gregory Roffet
IPC: H04N5/355 , G01J1/42 , H04N5/235 , H04N5/3745
CPC classification number: H04N5/35581 , G01J1/4228 , H04N5/2357 , H04N5/35554 , H04N5/37452 , H04N5/37457
Abstract: An image sensor including: a plurality of pixels each including a photodiode coupled to first and second capacitive elements by first and second transistors; a control circuit provided to acquire, for each pixel, a first and second value V_S and V_M representative of illumination levels of the photodiode during the first second periods, the first period being divided into a plurality of first sub-periods and the second period being divided into a plurality of second sub-periods, the first and second sub-periods sub-periods being interlaced; and a sum circuit capable of calculating, for each pixel, a value V_MS=C_S*V_S+C_M*V_M, C_S et C_M being first and second coefficients such that values C_S*V_S and C_M*V_M are substantially equal when the illumination of the photodiode is continuous.
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公开(公告)号：US09147236B2
公开(公告)日：2015-09-29
申请号：US14195472
申请日：2014-03-03
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Gregory Roffet , Pascal Mellot
CPC classification number: G06T5/009 , G06T2207/10016 , G06T2207/10024 , G06T2207/10144 , G06T2207/20208 , H04N5/235
Abstract: A method of generation, by a digital processing device, of a first high dynamic range digital image from second and third digital images of a same scene, including, for at least one point of the first image: determining a brightness index; comparing this index with at least one of first, second, third, and fourth decreasing thresholds stored in a memory; and determining the value of the point by taking into account the value of the index.
Abstract translation: 一种通过数字处理装置从相同场景的第二和第三数字图像生成第一高动态范围数字图像的方法，包括：对于第一图像的至少一个点：确定亮度指数; 将该索引与存储在存储器中的第一，第二，第三和第四减小阈值中的至少一个进行比较; 并通过考虑索引的值来确定点的值。
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公开(公告)号：US20140247979A1
公开(公告)日：2014-09-04
申请号：US14195472
申请日：2014-03-03
Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS
Inventor： Gregory Roffet , Pascal Mellot
IPC: G06T5/00
CPC classification number: G06T5/009 , G06T2207/10016 , G06T2207/10024 , G06T2207/10144 , G06T2207/20208 , H04N5/235
Abstract: A method of generation, by a digital processing device, of a first high dynamic range digital image from second and third digital images of a same scene, including, for at least one point of the first image: determining a brightness index; comparing this index with at least one of first, second, third, and fourth decreasing thresholds stored in a memory; and determining the value of the point by taking into account the value of the index.
Abstract translation: 一种通过数字处理装置从相同场景的第二和第三数字图像生成第一高动态范围数字图像的方法，包括：对于第一图像的至少一个点：确定亮度指数; 将该索引与存储在存储器中的第一，第二，第三和第四减小阈值中的至少一个进行比较; 并通过考虑索引的值来确定点的值。
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