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Self-cruising adjustment device and method for automatic exposure, hardware accelerator

An automatic exposure and adjustment device technology, applied to color TV parts, TV system parts, electrical components, etc., can solve the problem of reducing image quality, affecting the visual dynamic range of images, overexposure or darkening of image screens, etc. question

Active Publication Date: 2020-03-06
今瞳半导体技术(上海)有限公司
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  • Claims
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Problems solved by technology

This method is difficult to adapt to scenes under various illuminance and complex light, and it is easy to make the image screen overexposed or dark, which affects the visual dynamic range of the image and reduces the image quality

Method used

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  • Self-cruising adjustment device and method for automatic exposure, hardware accelerator
  • Self-cruising adjustment device and method for automatic exposure, hardware accelerator
  • Self-cruising adjustment device and method for automatic exposure, hardware accelerator

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those il...

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Abstract

The self-cruising adjustment device and method for automatic exposure provided by the present invention calculates the information entropy value of the scene image according to Shannon's information entropy concept, and adjusts the exposure nonlinearly and smoothly to obtain the optimally exposed scene image. Compared with the traditional single brightness target exposure, it has better scene adaptability. Compared with other multi-brightness target exposure methods, it has more natural coherence and stability. The invention also provides a hardware accelerator matched with the self-cruising adjustment device and method for automatic exposure.

Description

technical field [0001] The invention relates to the field of semiconductors, in particular to a self-cruising adjustment device and method for automatic exposure, and a hardware accelerator. Background technique [0002] With the current trend of 5G and AI technology, all kinds of smart handheld shooting terminals, security cameras, vehicle cameras, automatic driving, Internet of Things and other technologies are inseparable from image processing technology. As an important part of the image processor, automatic exposure plays a very important role in the imaging effect. [0003] In the traditional method, a single brightness value is used as the exposure target, and the image of the target brightness scene is obtained by adjusting the exposure parameters (exposure time and gain) of the image sensor. This method is difficult to adapt to scenes under various illuminance and complex light, and it is easy to make the image screen overexposed or dark, thereby affecting the visi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235H04N5/14
CPCH04N5/14H04N23/70
Inventor 朱红雷
Owner 今瞳半导体技术(上海)有限公司
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