High Frequency Ground Wave Radar can be used as an excellent transmission effect of sea water can be achieved over-the-horizon detection; it can make up for the shortcomings of the other radars, so HFGWR has a good prospect. Because the operating frequency of this radar is always 3~30MHz, the bandwidth of the radar signal is
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In recent years, integration camera became the core equipment in TV monitoring system.Integration has some Characteristics, such as simple structure, convenient, small, simple controlsystem, so it was used all over the place in monitoring field. And the development of integratedcamera mainly thanks to the development of auto-focusing technology, the technology ofauto-focusing is a key technology
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Binocular Vision System is commonly basedon fixedfocus camera. But in many cases, We need to observe both the distant objects and the objects at close range clearly without changing the location of Binocular Vision System. It is difficult for the Fixed Focus Binocular Vision System to meet this need. And the Variable Focus Binocular Visual
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Currently, as the safety concept becomes more and more important, the significance of security and protection control is gradually emerging. There are many new things continue to emerge in our daily life, such as the safe city, the intelligent community and the others. At the same time, automation and intelligent of enterprise production and logistics
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With the development of image processing compared with computer technology and detection technology, formed the visual detection system. Use the visual detection system we can measure the small size goods with a high precision. But if we use other equipments we can not finish the precision measurement. Auto focus is the key technology in visual
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The FPD (Flat Panel Display) with high resolution, high brightness, low power consumption, small size and light weight, etc, are widely used in the display area. In order to guarantee the display quality and improve the production of FPD, defect detection is essential during FPD manufacturing process. There is a urgent need of fully automated
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It has close relationship between the real-time of real-time video signal processing system and auto-focus technology. As the development of electronic technology and digital image processing technology, the direction of auto-focus is based on digital image processing technology. Auto-focus based on high frequency component was born. Video signal format conversion and implementation are also focused
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This article focuses on digital image processing algorithms which relate to the measurement of material hardness. On the basis of the framework created by the previous, this paper proposes a better AF algorithm and hardness image processing algorithms.In this article, the material hardness measurement method is the Vickers hardness measurement. Vickers hardness measurement is used
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The integrated zoom camera,which is integrated in lens,CCD chip,video processing circuits,control communication circuits,power,chassis,and so on as a whole.This type of cameras can focus,zoom, auto-focus, auto-zoom and auto-iris.Compared with traditional cameras,the integrated zoom cameras are a compact, the special design of appearance, the power, video, control signals are directly jack, also they have more simple connection
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Due to the complexity of imaging targets and conditions, there are still many shortcomings in auto-focusing techniques used in digital imaging systems at present. Many problems, such as how to select focus measures and focus windows, how to perform feedback control, how to improve the auto-focusing velocity, and how to reduce manufacture cost etc., are
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