Image acquisition device and image acquisition method

A technology of an image acquisition device and a filter device, which is applied in the field of intelligent transportation, can solve the problems of color cast and overexposure of red traffic lights, and achieves the effect of avoiding image processing steps and solving the effect of color cast and overexposure.

Active Publication Date: 2020-12-25
HANGZHOU HIKVISION DIGITAL TECH
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[0004] Embodiments of the present invention provide an image acquisition device and an image acquisition method, which a

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  • Image acquisition device and image acquisition method
  • Image acquisition device and image acquisition method

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Embodiment Construction

[0050] 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.

[0051]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 Describe a specific order 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 are, for example, capable of practice in sequences other than ...

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Abstract

The embodiment of the invention provides an image acquisition device and an image acquisition method. A light filtering device blocks infrared light in a light signal and at least part of red visiblelight of a preset wave band from passing, so the filtered light signal is transmitted to an image sensor, and the preset wave band is matched with the red visible light emitting wave band of a trafficsignal lamp; the image sensor senses the filtered optical signal and generates an image signal through exposure. In the embodiment of the invention, the light filtering device can block infrared light and part of red visible light at the same time, so that the passing rate of the red visible light in unit time length can be reduced, the red visible light reaching the image sensor can be reduced in the same exposure time period, the saturation time of the red visible light can be prolonged, and the problem of red light color cast is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of intelligent transportation, and in particular, to an image acquisition device and an image acquisition method. Background technique [0002] Electronic police is a modern traffic law enforcement system that uses high-definition cameras to capture traffic roads and vehicles to automatically record traffic violations such as running red lights, driving in reverse, and speeding. [0003] In the field of traffic, due to the high brightness of traffic lights, the image captured by the camera often appears the phenomenon of color cast and overexposure of red traffic lights. Exemplarily, in the captured image, the red traffic light turns yellowish, or even white when overexposed. If the above captured images are used as evidence of traffic violations, it may lead to ambiguity in the evidence of traffic violations. Contents of the invention [0004] Embodiments of the present invention p...

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Application Information

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IPC IPC(8): H04N5/225H04N9/73
CPCH04N9/73H04N23/54H04N23/55
Inventor 高浩然范沣曦
Owner HANGZHOU HIKVISION DIGITAL TECH
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