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Image output method, image sensor and application thereof

An image sensor and image output technology, which is applied in image communication, TV, color TV parts, etc., can solve the problems that a single pixel cannot output APS image and EVS image at the same time, and the size of the image sensor is large.

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 output method, an image sensor and its 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 output method, image sensor and application thereof
  • Image output method, image sensor and application thereof
  • Image output method, image sensor and application thereof

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Embodiment Construction

[0030] 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 output method, an image sensor and application thereof. The image output method comprises the following steps: the input circuit performs first photoelectric conversion on incident light and generates corresponding light current in an EVS mode working period, and performs second photoelectric conversion on the incident light and generates corresponding photoelectric charge in an APS mode working period; the EVS circuit outputs a corresponding event signal according to the change rate of the first voltage corresponding to the light current in the first photoelectric conversion process; the APS circuit outputs a corresponding gray-scale signal according to a second voltage corresponding to the photoelectric charge in the process that the first photoelectric conversion continues to be carried out; the control circuit outputs a corresponding EVS image according to the event signal and outputs a corresponding APS image according to the gray-scale 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 effectively 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 output method, an image sensor and applications thereof. 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 g...

Claims

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Application Information

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IPC IPC(8): H04N5/355H04N5/378
CPCH04N25/57H04N25/75
Inventor 邓坚查颖云
Owner 深圳锐视智芯科技有限公司
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