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Exposure method, image system and image system cooperative work method

An exposure method and collaborative work technology, applied in the parts of TV system, image communication, and color TV parts, etc., can solve the problems of poor actual effect, poor effect, and not clear picture, etc., and achieve video quality improvement, Effects with small changes and low cost

Active Publication Date: 2020-05-05
SHANGHAI FULLHAN MICROELECTRONICS
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AI Technical Summary

Problems solved by technology

One method is to use the full visible light sensor in the IMS, so that there will be no infrared interference, but at this time the low-light imaging effect in the car is poor and the picture is not clear enough
The other is to use an RGBIR sensor that is sensitive to RGB three colors and infrared rays in IMS, so that the influence of infrared rays on visible light can be eliminated through the processing of ISP (Image Signal Processor, image processing chip), but due to the release of infrared lights in DMS The energy is too strong, the effect of eliminating infrared influence through ISP processing is poor, and too strong infrared energy also has a great impact on the exposure control of RGBIR sensor
Therefore, the actual effect of the above two schemes is not good.

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  • Exposure method, image system and image system cooperative work method
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  • Exposure method, image system and image system cooperative work method

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Embodiment Construction

[0037] In order to make the purpose and features of the present invention more comprehensible, the specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings. However, the present invention can be implemented in different forms and should not be limited to the described embodiments. Moreover, in the case of no conflict, the embodiments in the present application and the features in the embodiments are allowed to be combined or replaced with each other. The advantages and features of the present invention will become clearer in conjunction with the following descriptions.

[0038] It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0039] It should also be stated that the purpose of numbering the steps in the present invention is to faci...

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Abstract

The invention relates to the technical field of video processing, and provides an exposure method, which is used for inhibiting the influence of an interference source, and comprises the following steps: a first image sensor sends a trigger signal, and simultaneously triggers the first image sensor and a second image sensor to respectively sample a frame of image; a first image processor in the first image system sends out a frame synchronization signal, and the first image processor and a second image processor in the second image system respectively screen images according to the frame synchronization signal; and a trigger signal and the frame synchronization signal are combined to control the work of the interference source, so that the interference source works in the sampling period of the first image sensor. The method has the advantages that the cost of the solution is low, the change of a hardware system is small, and the quality of the video obtained after the system is upgraded is greatly improved.

Description

technical field [0001] The invention relates to the technical field of digital image processing, in particular to an exposure method, an image system and a method for the image system to work together. Background technique [0002] At present, in public transportation vehicles, a video monitoring system (IMS, Image Monitor System) for recording the situation inside the vehicle is often installed in the vehicle, and is used to provide video evidence when abnormal conditions are found later. Generally speaking, the composition of IMS is as follows figure 1 shown. Wherein, the image sensor often adopts a rolling shutter (Rolling Shutter) sensor. [0003] At the same time, in public transport vehicles, in order to monitor the driver's behavior and prevent his fatigue driving, a driver monitoring system (DMS, Driver Monitor System) is often installed near the driver. In general, the composition of DMS is as follows figure 2 shown. Among them, in order to monitor the detaile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/04H04N5/235G07C5/08
CPCH04N5/04G07C5/0841H04N23/745H04N23/73
Inventor 吴问华汪中华李源方贵民张学国
Owner SHANGHAI FULLHAN MICROELECTRONICS
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