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Digital image sensor, its control method, and image acquisition device

A digital image and sensor technology, applied in image communication, TV, color TV components and other directions, can solve the problems affecting image imaging effect and improvement, and achieve the effect of improving dynamic range

Active Publication Date: 2019-04-26
BEIJING ZHIGU RUI TUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the size of a single physical pixel in the photosensitive chip becomes smaller and smaller, the limitation of the optical resolution of the optical imaging system may affect the further improvement of the image imaging effect in some scenarios

Method used

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  • Digital image sensor, its control method, and image acquisition device
  • Digital image sensor, its control method, and image acquisition device
  • Digital image sensor, its control method, and image acquisition device

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Embodiment Construction

[0044] Exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0045] Here, it should also be noted that, in order to avoid obscuring the application due to unnecessary details, only the device structure and / or processing steps closely related t...

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Abstract

The present application discloses a digital image sensor, its control method, and an image acquisition device. The digital image sensor includes: a pixel unit array, each pixel unit in the pixel unit array includes a counter, and a controller connected to the counter , and a photodetector connected to the controller; at least some of the pixel units in the pixel unit array are associated with a plurality of pixel combinations, and each pixel combination includes at least a first pixel unit and a second pixel unit, so The counter of the first pixel unit is cascaded with the counter of the second pixel unit, and the controller of the first pixel unit is connected with the counter of the second pixel unit. The present application is at least beneficial to improving the dynamic range allowed to be collected by the first pixel unit in the pixel combination.

Description

technical field [0001] The present application relates to the technical field of terminals, in particular to a digital image sensor, a control method thereof, and an image acquisition device. Background technique [0002] The resolution of images collected by image acquisition devices such as digital cameras is limited by the size of a single physical pixel in a photosensitive chip and the optical resolution of an optical imaging system. For photosensitive chips, the current design mainstream is miniaturization and high pixelation; for optical imaging systems, when the object point is imaged by the optical system, due to aberration, the imaging beam usually forms a diffuse circle on the image plane. Shape projection, called circle of confusion (Circle of Confusion), the size of the circle of confusion is related to factors such as lens aperture (such as aperture size), light source deviation degree (such as object distance), focusing state (such as in-focus, out-of-focus, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/369H04N5/3745H04N5/355
CPCH04N25/59H04N25/702H04N25/77
Inventor 丁大勇
Owner BEIJING ZHIGU RUI TUO TECH