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An image sensor and its image output method and application

An image sensor and transmission circuit technology, applied in image communication, TV, color TV components and other directions, can solve the problem of inability to output APS image and EVS image at the same time with a single pixel, large image sensor size, etc.

Active Publication Date: 2022-07-01
深圳锐视智芯科技有限公司
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  • Claims
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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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  • An image sensor and its image output method and application
  • An image sensor and its image output method and application
  • An image sensor and its image output method and application

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Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the present application more obvious and understandable, the present application will be described clearly and completely below with reference to the embodiments of the present application and the corresponding drawings, wherein the same or similar reference numerals represent the same throughout or similar elements or elements having the same or similar functions. It should be understood that, the various embodiments of the present application described below are only used to explain the present application, and are not used to limit the present application, that is, based on the various embodiments of the present application, those of ordinary skill in the art will not make any creativity. All other embodiments obtained under the premise of labor fall within the scope of protection of this application. In addition, the technical features involved in the various embodiments of the present applicatio...

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Abstract

The present application provides an image sensor and an image output method and application thereof. The image sensor includes: an input circuit for performing a first photoelectric conversion on incident light to generate a photocurrent during an EVS mode working period, and performing a second photoelectric conversion on the incident light to generate a photocharge during an APS mode working period; the EVS circuit , used for outputting the corresponding event signal according to the difference between the first voltage corresponding to the photocurrent and the reference voltage during the first photoelectric conversion process; the APS circuit is used to output the corresponding event signal in the process of the first photoelectric conversion continuing. The second voltage corresponding to the photocharge outputs a corresponding gray-scale signal; the control circuit is used to output a corresponding APS image according to the gray-scale signal, and output a corresponding EVS image according to the event signal; wherein, a single APS mode operating period is adjacent to between EVS mode operating periods. The present application can not only reduce the size of the image sensor, but also can output multiple frames of EVS images while outputting one frame of APS image.

Description

technical field [0001] The present application relates to the technical field of photosensitive elements, and in particular, to an image sensor and an image output method and application thereof. Background technique [0002] In the related art, the scheme of fusion of APS (ActivePixelSensor, active pixel sensor) and EVS (Event-based VisionSensor, event-based vision sensor) is: copy the photocurrent generated by photodiode in EVS to form APS, so as to realize EVS Integration with APS. However, this scheme is prone to introduce a large amount of noise in the photocurrent reproduction process, which seriously affects the imaging quality of APS; moreover, in the process of outputting images, it is impossible to simultaneously output APS images and EVS images from a single pixel. In addition, both APS and EVS require photoelectric conversion devices for detecting light, and photoelectric conversion devices occupy most of the space of the image sensor, thereby greatly increasing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/369H04N5/378
CPCH04N25/70H04N25/75H04N25/707H04N25/47H04N25/76H04N25/78H04N25/77H04N25/779
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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