Research And Implementation Of The Infrared Monitoring Technology Based On Dsp

With the development of uncooled infrared focal plane technology, Infraredthermal imaging technology has been applied widely in military and civilian fields dueto its incomparable advantages in the covert, anti-interference and24-hour monitoring.Especially in the field of security, CCD is rapidly replaced by uncooled infrareddetector recently, become the forefront of remote video surveillance.Infrared video surveillance technology is based on development of traditionalvideo surveillance, the images of IR Thermal Imaging Surveillance System are formedby thermal radiation between target and background, after compression andtransmission, finally reduction and real-time displayed on screen of RMON. The qualityof final image not only depends on infrared detector, compression and transmissionembedded platform, but also on image receiving terminal.This thesis begins with video compression standard, illustrated the advantage ofapplying H.264tech as the compression standard in infrared image, and in theArchitecture of Client/Sever, proposed the overall scheme of the system based onTMS320DM642and Visual C++platform. First, on DSP sever board, the video decoderchip dealt with the PAL signal of infrared image, the image data stream compressed inSDRAM using H.264tech, and transmitted through Ethernet by network module.Meantime, the application programmed in Visual Studio platform received and encodeddata stream, displayed infrared image on screen, the infared image detail enhancementtheory was creatively proposed to highlight the detail information.The systemtransmateed the infared image with ethernet and displayed in real time, the infraredimage detail enhancement theory make up the disadvantage of infrared imageeffectively, such as low contrast, blurred detail information, final test results showedthat the whole system is stable, high quality image reduction, low bandwidth occupation,the average transfer rate reached0.087MB/s, and image compression rate reached7:1,achieved infrared monitoring system design requirements.