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1.发明公开公开(公告)号：US20240340552A1
公开(公告)日：2024-10-10
申请号：US18742377
申请日：2024-06-13
发明人： Atsumi Niwa , Yusuke Oike
IPC分类号： H04N25/772 , H04N25/443 , H04N25/445 , H04N25/47 , H04N25/53 , H04N25/707
CPC分类号： H04N25/772 , H04N25/443 , H04N25/445 , H04N25/47 , H04N25/53 , H04N25/707
摘要： An object is to reduce a circuit scale in a solid-state imaging element that detects an address event. The solid-state imaging element is provided with a plurality of photoelectric conversion elements, a signal supply unit, and a detection unit. In this solid-state imaging element, each of the plurality of photoelectric conversion elements photoelectrically converts incident light to generate a first electric signal. Furthermore, in the solid-state imaging element, the detection unit detects whether or not a change amount of the first electric signal of each of the plurality of photoelectric conversion elements exceeds a predetermined threshold and outputs a detection signal indicating a result of the detection result.
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公开(公告)号：US12096137B2
公开(公告)日：2024-09-17
申请号：US17769157
申请日：2020-11-18
发明人： Shun Kaizu
IPC分类号： H04N25/47 , H04N23/74 , H04N23/745
CPC分类号： H04N25/47 , H04N23/74 , H04N23/745
摘要： There is provided a signal processing device, a signal processing method, and a detection sensor that makes it possible to detect flicker information from an output indicating a luminance change. The signal processing device includes: a change detection unit that detects a first luminance change in a positive direction and a second luminance change in a negative direction among luminance changes detected by a light receiving unit; a coefficient generation unit that generates a coefficient depending on a time at which the luminance change is detected; and an integration unit that integrates a result of multiplication of the first luminance change and the coefficient and integrates a result of multiplication of the second luminance change and the coefficient. The present technology can be applied to, for example, an event detection sensor and the like.
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公开(公告)号：US20240292120A1
公开(公告)日：2024-08-29
申请号：US18585217
申请日：2024-02-23
发明人： Keunjoo PARK , Junseok KIM , Bongki SON , Jaeha PARK , Inchun LIM
IPC分类号： H04N25/47 , H04N25/587 , H04N25/707
CPC分类号： H04N25/47 , H04N25/587 , H04N25/707
摘要： Provided is an image sensor. The image sensor including a plurality of pixels, and processing circuitry configured to, generate first image data by converting optical signals received by each of the plurality of pixels during a first exposure time into electrical signals, generate event data including information related to a change in intensity of the optical signals received by each of the plurality of pixels during the first exposure time, the event data having a frame rate greater than a frame rate of the first image data, receive the first image data and the event data, and generate output data by sequentially packing the first image data and the event data corresponding to the first exposure time.
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公开(公告)号：US20240267643A1
公开(公告)日：2024-08-08
申请号：US18640766
申请日：2024-04-19
发明人： Zhipeng Deng , Hui Hu
摘要： In a moving target detection method a detection apparatus controls a first pixel system to be exposed for first duration; controls a second pixel system to be exposed for second duration; obtains first luminance information and second luminance information, where the first luminance information indicates luminance obtained by exposing the first pixel system for the first duration, and the second luminance information indicates luminance obtained by exposing the second pixel system for the second duration; and generates motion information based on the first luminance information and the second luminance information, where the motion information indicates whether a difference exists between the first luminance information and the second luminance information.
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公开(公告)号：US12010447B2
公开(公告)日：2024-06-11
申请号：US18206634
申请日：2023-06-07
发明人： Raphael Berner , Christian Brändli
IPC分类号： H04N25/77 , G01J1/46 , G06F11/00 , G06T7/20 , H04N25/40 , H04N25/47 , H04N25/571 , H04N25/75 , H04N25/766 , H04N25/772
CPC分类号： H04N25/75 , G01J1/46 , G06F11/004 , G06T7/20 , H04N25/40 , H04N25/47 , H04N25/573 , H04N25/766 , H04N25/77 , H04N25/772 , G06F2201/86 , G06F2201/88
摘要： A dynamic vision sensor (DVS) or change detection sensor reacts to changes in light intensity and in this way monitors how a scene changes. This disclosure covers both single pixel and array architectures. The DVS may contain one pixel or 2-dimensional or 1-dimensional array of pixels. The change of intensities registered by pixels are compared, and pixel addresses where the change is positive or negative are recorded and processed. Analyzing frames based on just three values for pixels, increase, decrease or unchanged, the proposed DVS can process visual information much faster than traditional computer vision systems, which correlate multi-bit color or gray level pixel values between successive frames.
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公开(公告)号：US12010444B2
公开(公告)日：2024-06-11
申请号：US17831947
申请日：2022-06-03
发明人： Jungwoo Kim
CPC分类号： H04N25/745 , H04N25/47 , H04N25/75
摘要： According to an embodiment, an image sensor using photon counting includes: a plurality of sub-pixels arranged in one pixel; pulse generators which are respectively connected to the plurality of sub-pixels, and are configured to generate pulse signals based on electric signals generated based on photons incident on the plurality of sub-pixels; a synchronizer and serializer configured to synchronize and serialize pulse signals respectively output from the pulse generators; and a counter configured to count and output a number of the pulse signals that are synchronized and serialized.
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公开(公告)号：US20240179431A1
公开(公告)日：2024-05-30
申请号：US18508592
申请日：2023-11-14
发明人： MASAYUKI IGUCHI
IPC分类号： H04N25/709 , H04N25/47
CPC分类号： H04N25/709 , H04N25/47 , B60W30/09
摘要： A photoelectric conversion device includes: a pixel array including pixel circuits arranged in rows and columns, each of the pixel circuits being configured to output a pixel signal based on incident light; first and second processing circuits each including a data processing unit configured to process the pixel signal to generate data; an output pad; an output circuit configured to output the data to the outside of the photoelectric conversion device via the output pad; an event signal generation unit configured to generate an event signal indicating an occurrence of an event; and a first power supply control unit. The first power supply control unit controls a first power supply control target circuit of the first processing circuit to be set to any one of states including a first state and a second state in which power consumption is higher than the first state based on the event signal.
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公开(公告)号：US20240163581A1
公开(公告)日：2024-05-16
申请号：US18284604
申请日：2022-03-29
申请人： NIKON CORPORATION
发明人： Hiroki YAMAZAKI , Fumiki NAKAMURA
IPC分类号： H04N25/766 , H04N23/71 , H04N25/47 , H04N25/53 , H04N25/771
CPC分类号： H04N25/766 , H04N23/71 , H04N25/47 , H04N25/53 , H04N25/771
摘要： An imaging element includes: a first substrate including a plurality of pixels configured to output a signal based on charge obtained by photoelectric conversion; a second substrate including a conversion unit configured to convert at least a first signal output from a first pixel among the plurality of pixels and a second signal output from the first pixel after the first signal into digital signals; and a third substrate including a computing unit including a calculating unit configured to calculate evaluation values of first and second images generated on the basis of the first and second signals converted into digital signals by the conversion unit and a selecting unit configured to select data of at least one of the first and second images to be output to an outside on the basis of the evaluation values of the first and second images.
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公开(公告)号：US20240137663A1
公开(公告)日：2024-04-25
申请号：US18546080
申请日：2021-03-28
发明人： Rengao Zhou
摘要： A method and system for generating frames for a DVS is disclosed. The method comprises: receiving DVS pixels of an object from a DVS; initializing a timespan to a timespan value; generating a frame by integrating DVS pixels captured within a timespan; evaluating a moving speed of the object; combining a plurality of consecutive frames into one combined frame when the evaluated moving speed is lower than a first threshold value. The system comprises a DVS configured to capture DVS pixels of an object; and a processor configured to receive the DVS pixels from the DVS and performed the method.
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公开(公告)号：US11950009B2
公开(公告)日：2024-04-02
申请号：US17287815
申请日：2019-09-27
发明人： Hongbo Zhu
IPC分类号： H04N25/77 , H04N25/47 , H04N25/767 , H04N25/79
CPC分类号： H04N25/77 , H04N25/47 , H04N25/767 , H04N25/79
摘要： In a solid-state image sensor that compares an amount of change in light amount and a threshold, time required to adjust the threshold is shortened.
The solid-state image sensor includes a voltage comparison unit and a count unit. In the solid-state image sensor, the voltage comparison unit compares an analog signal according to an amount of change in incident light with a predetermined voltage indicating a boundary of a predetermined voltage range, and outputs a comparison result as a voltage comparison result. Furthermore, in the solid-state image sensor, the count unit counts a count value every time the voltage comparison result indicating that the analog signal falls outside the voltage range is output.
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