Image sensor, control method thereof, and imaging device equipped with the image sensor

An image sensor and control method technology, applied in the field of image sensors, can solve the problems of loss of image details, limitations, etc., and achieve the effect of wide dynamic range

Inactive Publication Date: 2021-10-08
SZ DJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the contrast between light and dark in the external scene is very strong, if the image sensor wants to obtain the details in the dark part of the image, it is easy to cause the image details in the bright part to be lost, that is, the dynamic range (Dynamic Range, DR) is limited.

Method used

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  • Image sensor, control method thereof, and imaging device equipped with the image sensor
  • Image sensor, control method thereof, and imaging device equipped with the image sensor
  • Image sensor, control method thereof, and imaging device equipped with the image sensor

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0036] The flow charts shown in the drawings are just illustrations, and do not necessarily include all contents and operations / steps, nor must they be performed in the order described. For example, some operations / steps can be decomposed, combined or partly combined, so the actual order of execution may be changed according to the actual situation.

[0037] Some embodiments of the present application will be described in detail below in conjunction with the accomp...

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Abstract

Disclosed are a control method of an image sensor, the image sensor, and an imaging device. The method includes: during exposure, enabling a transmission tube to be in a sub-threshold state, so that the photo-generated charges exceeding the capacity enter a floating diffusion area (S110); reseting a floating diffusion area (S120); turning the transfer tube on to transfer photo-generated charges in a photosensitive element to the floating diffusion area (S130); reading the signal voltage of the floating diffusion area (S140); and determining an imaging parameter of the pixel according to the signal voltage (S150). The method can achieve a wide dynamic range.

Description

technical field [0001] The present application relates to the technical field of image sensors, and in particular to an image sensor, a control method thereof, and an imaging device equipped with an image sensor. Background technique [0002] Image sensors are widely used in consumer electronics, security monitoring, industrial automation, artificial intelligence, Internet of Things and other fields, for the collection and arrangement of image data information, and provide information sources for subsequent processing and applications. [0003] The image sensor can be divided into the photosensitive circuit area and the peripheral reading circuit area according to the functional composition. The function of the photosensitive circuit area is responsible for converting the light signal into an electrical signal through the photosensitive element and storing it, and then handing it over to the subsequent peripheral readout circuit for conversion into a digital image signal. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/369H04N5/3745
CPCH04N25/702H04N25/77
Inventor 徐泽周雪梅肖琳
Owner SZ DJI TECH CO LTD
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