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公开(公告)号：US10944922B2
公开(公告)日：2021-03-09
申请号：US16751020
申请日：2020-01-23
IPC分类号： H04N5/3745 , H04N5/357 , H04N5/232 , H04N5/353 , H04N5/374 , H04N5/343 , H04N5/347 , H04N5/378
摘要： An imaging system is provided that includes a pixel array having a plurality of columns with rows of pixels and with each pixel having a plurality of photodiodes and a common readout circuit that stores respective accumulation voltages from each of the plurality of photodiodes. Moreover, the system includes row driver circuitry that control the pixel array for pixel addressing and readout, such that the respective accumulation voltages of the photodiodes is read out on a readout channel coupled to a bit line column, and a hybrid multiplexer that multiplexes and routes output signals from the pixel array to a video imaging device to be displayed thereon.
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公开(公告)号：US11258959B2
公开(公告)日：2022-02-22
申请号：US16752124
申请日：2020-01-24
发明人： Jeroen Rotte , Rik Visser
摘要： An image processor is provided for correcting brightness of saturated pixels of a captured image. The image processor can include a pixel saturation determiner that whether one or more pixels in an image sensor have been saturated by comparing pixel brightness levels of the pixels to a predetermined saturation threshold. Moreover, the image processor includes an image enhancer that generates a corrected image without artifacts due to the saturated pixel(s) by replacing the pixel brightness of the saturated pixel(s) with a pixel correction value that is based on a pixel brightness of one or more unsaturated pixel in the image sensor.
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公开(公告)号：US10547795B2
公开(公告)日：2020-01-28
申请号：US15693295
申请日：2017-08-31
发明人： Jeroen Rotte , Rik Visser
摘要： An image processor is provided for correcting brightness of saturated pixels of a captured image. The image processor can include a pixel saturation determiner that whether one or more pixels in an image sensor have been saturated by comparing pixel brightness levels of the pixels to a predetermined saturation threshold. Moreover, the image processor includes an image enhancer that generates a corrected image without artifacts due to the saturated pixel(s) by replacing the pixel brightness of the saturated pixel(s) with a pixel correction value that is based on a pixel brightness of one or more unsaturated pixel in the image sensor.
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公开(公告)号：US11272129B2
公开(公告)日：2022-03-08
申请号：US16750602
申请日：2020-01-23
摘要： An imager that includes a pixel array with a plurality of columns having rows of pixels and with each pixel having a plurality of photodiodes and a common readout circuit that stores respective accumulation voltages from each of the plurality of photodiodes. The imager further includes row driver circuitry that controls the pixel array for pixel addressing and readout, with the row driver circuitry including a plurality of shift registers, and an image sensor controller that controls the plurality of shift registers to address the rows of pixels in the pixel array. Moreover, the row driver circuitry dynamically upward and downward shifts control signals to the pixel array, such that two rows of pixels in a single column of the pixel array are addressed during a single row time.
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公开(公告)号：US10270997B2
公开(公告)日：2019-04-23
申请号：US15362023
申请日：2016-11-28
发明人： Petrus Gijsbertus Centen , Jeroen Rotte , Juul Josephus Johannes Van Den Heijkant , Rudolf Van Ree
IPC分类号： H01L27/146 , H04N5/374 , H04N5/378 , H04N5/345 , H04N5/363 , H04N5/3745 , H04N5/357 , H04N5/376
摘要： A CMOS image sensor with reducing interconnections is provided. The CMOS image sensor may include a first row of pixels that includes a first pixel. The first pixel may include a first plurality of photodiodes and a first plurality of transfer gates. Each of the first plurality of photodiodes may be associated with a corresponding one of the first plurality of transfer gates. The CMOS image sensor may include a second row of pixels that includes a second pixel. The second pixel may include a second plurality of photodiodes and a second plurality of transfer gates. Each of the second plurality of photodiodes may be associated with a corresponding one of the second plurality of transfer gates. A first one of the transfer gates of the first plurality of transfer gates may be coupled to a first one of the transfer gates of the second plurality of transfer gates.
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6.发明授权公开(公告)号：US10270987B2
公开(公告)日：2019-04-23
申请号：US15697349
申请日：2017-09-06
发明人： Petrus Gijsbertus Centen , Jeroen Rotte , Juul Josephus Johannes Van Den Heijkant , Rudolf Van Ree
摘要： A camera using a CMOS image sensor based on a shared pixel array technology avails both high definition (HD) and ultra-high definition (UHD) resolution mode formats. Dynamic pixel management allows for both sequential and binned timing formats of pixel signals using switched capacitor noise reduction techniques. When UHD resolution mode is selected, noise can be reduced using both digital double sampling (DDS) or differential digital double sampling (dDDS), and when HD resolution mode is selected noise can be reduced using DDS. Additionally, both rolling shutter and global shutter modes can be selected when HD resolution mode is selected.
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公开(公告)号：US09654710B2
公开(公告)日：2017-05-16
申请号：US14102463
申请日：2013-12-10
发明人： Jeroen Rotte , Peter Centen
CPC分类号： H04N5/3698 , H04N5/353 , H04N5/3594 , H04N5/3742 , H04N5/3745 , H04N5/378
摘要： An image sensor is provided. In one aspect, the image sensor includes a pixel coupled to an output line. The pixel includes a photodiode configured to generate electrical charges in response to light and a supply circuit configured to supply a voltage to the photodiode to keep a voltage of the photodiode at or above a threshold level in an integration time. In another aspect, the pixel includes a supply circuit configured to selectively supply voltage to the photodiode in a first charge holding capacity and a second charge holding capacity.
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公开(公告)号：US11368641B2
公开(公告)日：2022-06-21
申请号：US16992492
申请日：2020-08-13
摘要： A system and method is provided for performing high dynamic range digital double sampling. More particularly, a CMOS image sensor is provided that includes a pixel array with each pixel sampling both dark and bright values for digital double sampling. After the sampled signals are digitized, a mean dark value is determined and each dark value is further fed to a lookup table that generates an output value taking into account whether the pixel has been saturated. In over exposed conditions, the lookup table will generate a negative value output to eliminate image artifacts. All three values are fed to adder logic circuit that subtracts the mean dark value and the lookup table output from the bright value. This resulting output is fed to a video viewer.
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公开(公告)号：US10764519B2
公开(公告)日：2020-09-01
申请号：US16571660
申请日：2019-09-16
摘要： A system and method is provided for performing high dynamic range digital double sampling. More particularly, a CMOS image sensor is provided that includes a pixel array with each pixel sampling both dark and bright values for digital double sampling. After the sampled signals are digitized, a mean dark value is determined and each dark value is further fed to a lookup table that generates an output value taking into account whether the pixel has been saturated. In over exposed conditions, the lookup table will generate a negative value output to eliminate image artifacts. All three values are fed to adder logic circuit that subtracts the mean dark value and the lookup table output from the bright value. This resulting output is fed to a video viewer.
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公开(公告)号：US10430931B2
公开(公告)日：2019-10-01
申请号：US16361094
申请日：2019-03-21
摘要： An apparatus for HDR image processing is provided. The apparatus determines an imaging sensitivity value. The apparatus then compares subsets of imaging information with the determined imaging sensitivity value and applies a gamma correction to each subset of imaging information using a gamma low contrast curve or a gamma high contrast curve based on the comparison to obtain the gamma corrected subset of imaging information.
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