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Self-cruise adjusting device and method for automatic exposure and hardware accelerator

A technology of automatic exposure and adjustment device, applied in color TV parts, TV system parts, electrical components, etc. question

Active Publication Date: 2019-10-08
今瞳半导体技术(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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-cruise adjusting device and method for automatic exposure and hardware accelerator
  • Self-cruise adjusting device and method for automatic exposure and hardware accelerator
  • Self-cruise adjusting device and method for automatic exposure and 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 invention provides a self-cruise adjusting device and method for automatic exposure. According to concept of Shannon's entropy of information, the information entropy value of the scene image is calculated, and exposure is adjusted nonlinearly and smoothly, so that the scene image with optimal exposure is obtained. Compared with traditional single-brightness target exposure, the method has better scene adaptability. Compared with other multi-brightness target exposure methods, the method has more natural coherence and stability. The invention further provides a hardware accelerator matchedwith the self-cruise adjusting 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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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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