Image sensor and image output method and application thereof

An image sensor and transmission circuit technology, used in image communication, TV, color TV components, etc., can solve the problems of large image sensor size and inability to output APS images and EVS images at the same time from a single pixel.

Active Publication Date: 2022-04-29
深圳锐视智芯科技有限公司
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Problems solved by technology

[0004] This application provides an image sensor and its image output method and application, aiming to solve the problem that the size of the image sensor that realizes the fusion of APS and EVS in the related art is relatively large, and it is impossible to simultaneously output an APS image and an EVS image by a single pixel

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  • Image sensor and image output method and application thereof
  • Image sensor and image output method and application thereof
  • Image sensor and image output method and application thereof

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[0035] In order to make the purpose, technical solutions and advantages of the application more obvious and understandable, the following will clearly and completely describe the application in conjunction with the embodiments of the application and the corresponding drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. It should be understood that the various embodiments of the application described below are only used to explain the application, and are not intended to limit the application, that is, based on the various embodiments of the application, those skilled in the art will not make an inventive step. All other embodiments obtained under the premise of labor all belong to the protection scope of this application. In addition, the technical features involved in the various embodiments of the present application described below may be combined with each other as long as they do ...

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Abstract

The invention provides an image sensor and an image output method and application thereof. The image sensor comprises an input circuit used for performing first photoelectric conversion on incident light in an EVS mode working period to generate light current and performing second photoelectric conversion on the incident light in an APS mode working period to generate light charge; the EVS circuit is used for outputting a corresponding event signal according to a difference value between a first voltage corresponding to the light current and a reference voltage in a first photoelectric conversion process; the APS circuit is used for outputting a corresponding gray-scale signal according to a second voltage corresponding to the photoelectric charge in the process of continuing the first photoelectric conversion; the control circuit is used for outputting a corresponding APS image according to the gray-scale signal and outputting a corresponding EVS image according to the event signal; wherein the working period of the single APS mode is between the working periods of the adjacent EVS modes. According to the invention, the size of the image sensor can be reduced, and multiple frames of EVS images can be output while one frame of APS image is output.

Description

technical field [0001] The present application relates to the technical field of photosensitive elements, in particular to an image sensor and its image output method and application. Background technique [0002] In related technologies, the scheme for the fusion of APS (Active Pixel Sensor, active pixel sensor) and EVS (Event-basedVisionSensor, event-based visual sensor) is: copy the photocurrent generated by the photodiode in EVS to form APS, so as to realize EVS Integration with APS. However, this scheme easily introduces a large amount of noise in the process of photocurrent replication, which seriously affects the imaging quality of APS; moreover, in the process of outputting images, it is also impossible to simultaneously output APS images and EVS images from a single pixel. In addition, both APS and EVS require a photoelectric conversion device for detecting light, and the photoelectric conversion device occupies most of the space of the image sensor, thereby greatl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/369H04N5/378
CPCH04N25/70H04N25/75H04N25/707H04N25/47G06F1/3287G06F1/3296
Inventor 查颖云邓坚万小芳
Owner 深圳锐视智芯科技有限公司
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