保安公司分析怎么解决红外摄像头的逆光现象! - 公司新闻

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保安公司分析怎么解决红外摄像头的逆光现象!

来源:http://www.hunanzhongtebao.com发布时间:2018-12-18
在装置红外摄像机的时分,往往都会遇到逆光的现象,那么此刻咱们都会采取什么办法和办法来改进这一的情况呢?比如咱们在网点出进口装置红外摄像机是时分,遇到最大的问题是因为摄像机装置方位不当,监督画面上会呈现逆光现象,对此,长沙保安服务公司认为,能够选用三种办法加以改进:一是在装置方位上尽量避免阳光直射;二是选用具有相应改进功用的摄像机;三是经过进步室内光源照度,减小与室外光线的反差。
  When installing infrared cameras, we often encounter the phenomenon of backlight, so what methods and methods will we take to improve this situation at this moment? For example, when we point out the imported infrared camera, the biggest problem we encounter is the inappropriate orientation of the camera device and the phenomenon of backlight on the supervisory screen. For this reason, Changsha Security Service Company believes that there are three ways to improve it: one is to avoid direct sunlight in the orientation of the device; the other is to choose the camera with corresponding improvement function; By improving the illumination of indoor light source, the contrast between indoor light source and outdoor light source is reduced.
  长沙保安公司改进监控过程中逆光的办法一:
  Changsha Security Company to improve the process of monitoring the way of backlighting:
  改进监控过程中逆光的办法一:经过调整装置方位,改进逆光现象经过调整出进口摄像机的装置方位,尽量避开来自外界的阳光直射,能在很大程度上改进出进口的逆光现象,如上海华亭宾馆在大厅出进口二侧分别装置了一台摄像机,监督收支人员;工行上海分即将监督出进口的摄像机倒装,使红外摄像机的镜头对着走出网点的人员(在呈现逆光现象比较严重的情况下这样装置办法比将摄像机对着出进口 装置,效果要好,但要引起留意的是,假如选用上述倒装办法,关于一个网点上有2个以上出进口的,摄像机的装置方向都应该共同,不然会出 现防范漏洞)。它们都能较好的处理逆光问题。现在有许多网点,营业厅的面积都不大,有的进了出进口就是现金货台区,可提供给装置摄像机的方位并不多,这样,就更需求咱们留意处理好装置方位问题,尽量避免将摄像机对着出进口装置,咱们讲出进口要装置摄像机,并没有规定监督出进口的摄像必须装置在哪一个方位上,应该讲重要的是看效果,看什物质量。
  The first way to improve the backlighting in the process of monitoring is to adjust the orientation of the device, improve the backlighting phenomenon, and adjust the orientation of the imported camera, try to avoid direct sunlight from the outside world, which can greatly improve the backlighting phenomenon of the import. For example, Shanghai Huating Hotel has installed a camera on both sides of the entrance and exit of the hall to supervise the income and expenditure personnel. Inversion of the camera supervised out of the import will make the lens of the infrared camera facing the people who come out of the dot (in the case of serious backlight phenomenon, this device is better than the camera facing out of the import device, but it should be noted that if the above inversion method is used, the direction of the device of the camera for more than two out of the import in one dot will be the direction of the device of the camera. They should all work together, or there will be loopholes to guard against. They can deal with the problem of backlighting better. Now there are many outlets, the business hall area is not large, some in and out of the import is the cash counter area, the location of the camera can be provided to the device is not much, so we need to pay attention to deal with the location of the device, try to avoid the camera facing the import device, we said that the import of cameras, there is no requirement to monitor the import of cameras must be installed. In which direction, it is important to look at the effect and the quality of the material.
  长沙保安公司改进监控过程中逆光的办法二:经过选用具有相应功用的摄像机,改进逆光现象选用超动态摄像机或许有布景补偿功用的摄像机也是改进出进口逆光现象的一种办法。一般的红外摄像机都有AGC(主动增益控制)功用,即有强弱信号主动进步摄像机内部的放大增益,将强信号主动下降摄像机内部放大器增益,使最终的输出信号基本不随输入信号的改变而改变,输出信号幅值基本保持不变的功用,可是一般摄像机的这种主动调理功用是有限的,一旦呈现很强的信号(如强烈的逆光的现象)超过了一般摄像机主动调理规模,放大器就饱满,就起不到 主动调理作用,监督器画面上就会呈现一片边际模糊的白斑(逆光现象)。而超动态摄像机主动调理的规模比一般摄像机要大。咱们能够经过 实践感觉到,当现场中呈现画面层次比较丰富的方针物体时,用一般摄像机摄取方针物体时,所获得的画面层次较多,所以选用超动态摄像对 画面反差比较大的逆光问题,也能起到一定的改进的作用。出进口呈现的逆光现象,往往是现场中呈现一个很亮的布景和一个很暗的前景方针,并且布景和方针的方位基本保持不变,选用具有BLC功用(布景光补偿功用)的摄像机,可仅对现场某个区域求平均值来确定AGC工作点,此刻假如前景方针位于该区域时,则前景方针的清晰度可望进步。
湖南保安公司加盟
  Changsha Security Company improves the backlighting in the process of monitoring. The second way is to improve the imported backlighting by choosing the camera with the corresponding function, improving the backlighting phenomenon, and choosing the camera with the function of Superdynamic camera or scene compensation. Generally, infrared cameras have the function of AGC (active gain control), that is, strong and weak signals actively improve the internal gain of the camera, and actively reduce the internal gain of the camera, so that the final output signal basically does not change with the change of the input signal, and the output signal amplitude basically remains unchanged. However, the active adjustment power of ordinary cameras is the same. The application is limited. Once the strong signal (such as strong backlight) exceeds the active adjustment scale of the general camera, the amplifier will be full, and it will not play an active adjustment role. The monitor screen will show a marginal blurred white spot (backlight phenomenon). The scale of active adjustment of hyperdynamic camera is larger than that of ordinary camera. We can feel through practice that when we present policy objects with abundant picture layers in the scene, when we use ordinary cameras to capture policy objects, we can get more picture layers. Therefore, the selection of ultra-dynamic camera can also play a certain role in improving the problem of backlighting with large contrast of the picture. The phenomenon of backlighting presented by imports is usually a very bright scene and a very dark prospect policy on the spot, and the orientation of the scene and policy is basically unchanged. By choosing a camera with BLC function (scene compensation function), the AGC working point can be determined only by seeking the average value of a certain area on the spot. At this moment, if the prospect policy is located in this area, the prospect policy will be adopted. Clarity is expected to improve.
  长沙保安公司改进监控过程中逆光的办法三:经过进步室内光源照度,改进逆光现象; 经过进步室内光源的照度也是改进逆光现象的一条途径,图画呈现逆光现象,主要是视场规模光线照度强弱反差太大引起的。装置于出进口的摄像机,其监控规模内的室外光线强,室内光线弱,就形成了图画黑白层次反差太强。这样,假如经过进步室内光源的照度,使室内光线增强。减小与外界亮光的反差,也能够改进逆光现象。; 改进或许减少出进口的逆光现象,还有一些其它辅佐办法,如在地面铺设一些地毯,避免地面光的反射,在近出进口附近的窗户,用窗布遮挡阳光的直射等,都是辅佐改进逆光现象的办法。 出进口的逆光现象是一个比较突出的问题,并且这个问题的处理,目前还没有找到一种最彻底 ,最有用的办法。
  Changsha Security Company improves the backlighting in the process of monitoring. The third way is to improve the backlighting phenomenon by improving the illumination of indoor light source. The improvement of the illumination of indoor light source is also a way to improve the backlighting phenomenon. The main reason is that the contrast of illumination intensity of the field of view is too large. Installed in the imported camera, its monitoring scale of the outdoor light is strong, indoor light is weak, forming a picture of black-and-white level contrast is too strong. In this way, if the illumination of indoor light source is improved, the indoor light will be enhanced. Reducing the contrast with the outside light can also improve the backlight phenomenon. Improving or perhaps reducing the backlighting phenomenon of imports and exports, as well as other auxiliary measures, such as laying some carpets on the ground, avoiding the reflection of ground light, shading the direct sunlight with window cloth near the imports and so on, are all ways to help improve the backlighting phenomenon. The backlight phenomenon of import and export is a more prominent problem, and the treatment of this problem has not yet found a most thorough and useful way.
  以上内容由湖南保安公司加盟整理发布,更多先关咨询可以点击我们的官网进行咨询:http://www.hunanzhongtebao.com
  The above content is joined by Hunan Security Company and published. For more information, you can click on our official website to consult: http://www.hunanzhongtebao.com.

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