本文介紹了一種基于嵌入式主板的便攜式無線圖像發(fā)射裝置的設(shè)計原理和實現(xiàn)方案，
該裝置具有圖像采集、圖像處理和圖像的無線傳輸功能。同時提出了一種改進的運動圖像檢測算法，并將其應(yīng)用到無線圖像發(fā)射裝置的圖像處理過程中，由此構(gòu)造了一種基站式無線圖像監(jiān)控系統(tǒng)。該系統(tǒng)可以獲取被監(jiān)控現(xiàn)場的實時圖像，對圖像中運動物體檢測，當有運動物體進入監(jiān)視現(xiàn)場時，無線圖像發(fā)射裝置給出報警信號，并將報警信號以及實時的圖像畫面通過無線圖像發(fā)射裝置發(fā)射出去，通過無線接收基站傳入監(jiān)控機房，監(jiān)控人員可以在監(jiān)視器上觀察報警現(xiàn)場的情況。我們研制出了便攜式無線圖像發(fā)射裝置的樣機，并在實驗室構(gòu)建了該無線圖像監(jiān)控系統(tǒng)，獲得了理想的效果。
關(guān)鍵詞： 圖像監(jiān)控；圖像無線傳輸；運動圖像檢測
Abstract: This paper introduces the design and implementation of a portable wireless image
transmission device based on embedded system, which has the capability of image collection,
image processing and wireless transmission. An improved algorithm on moving image detection is also proposed and applied into the image processing of the device. Thus a station-based wireless image monitory system is constructed. The system can obtain the real-time image of the monitored scene. By image detection of the moving object, the wireless image transmission device can give off alarm signals when moving objects enter the scene. Then alarm signals and real-time image are transmitted through wireless receival station into the monitoring room for inspection. We have developed the sample system in the laboratory and obtained ideal effects under real circumstance.
Keywords: image monitor, image wireless transmission, moving image inspecting