The Performance Effect of Remote Monitoring System by Image Compression

• Main Authors: Ya-Yu Huang, 黃雅鈺
• Other Authors: Wen-Shyang Hwang
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/25786519254123348455

碩士 === 國立高雄應用科技大學 === 資訊工程系 === 97 === With the rapid evolution of information age, wireless communication technology advances make it possible for progressive upgrading of transmission bandwidth, a variety of broadband applications and services have emerged, security monitoring gradually towards the development of digital, network-based direction of innovation.Digital information makes it easy to handle and store, also makes products more stable and better able to control. Broadband Internet and the rise of the Internet makes the Information can be far-reaching fast delivery, so the network of digital security monitoring has become an inevitable trend. In addition to services such as IPTV, or Internet, the home security surveillance applications will also be emerging. Audio and video coding has become a digital home, one of the most major role, after all, our day-to-day by watching television, playing video clips, is not without a variety of ways posed by video and audio encoding. How to watch for various types of environment for future coding standard, apart from a variety of encoding depends on the characteristics of the specifications, but also pay attention to the formation of the future as a hardware codec that includes the cost of test volume, simple architecture, as well as transaction level performance codec chip restrictions and other factors. In response to the coming high-definition video and high-fidelity sound both times, many new products in order to have the introduction of a new generation of audio and video compression standard, not too old technology and not so out of the trend of the times. in some specific applications in the old technology still occupies a very important place. With the global economic development and people's income increase in the demand for human security and on the increase, a security surveillance system has become the basic equipment protection. The electronic security industry may be divided broadly into surveillance, access control, intercom and other anti-theft and four broad categories, of which system to monitor the share of output and the highest proportion of all of them with cameras, video transmission, image integration, image display, images are stored on the all kinds of devices and control devices, widely used in financial institutions, community homes, office buildings and the preservation of safety monitoring purposes. In fact, the use of video surveillance systems to monitor the work involved in security protection, with the exception of police and preservation to address the issue of manpower shortage, but also time-saving, labor-saving and lower cost advantages, the safety monitoring needs with long-term stability. The development of video compression technology, such as the MPEG series,ITU-T series and JPEG series and so on, from the 1990s to the present, continuous innovation. DVR technology is also in continuous change. Remote monitoring system on the market solution is also a wide variety. A variety of image compression technology of different the characteristics and the application areas. And the DVR recordings of the images are also special requirements, because it is video evidence. It is of different the general recreational audio-visual needs. So can not be entertaining audio-visual products in the technology to analyze. Remote monitoring is required for the next era. Due to network bandwidth constraints, the transmission of information has been limited. In order to solve the network increasing the amount of data to enhance the speed of network transmission, and at an acceptable image quality under a variety of compression techniques will be generated. Under consideration in the reduction of cost, network bandwidth and cost of the line must be careful calculation and strict budgeting. In this paper, the direction is use of next-generation video compression standardH.264 and Mpeg-4, in the Internet environment, is to image compression for remote monitoring of the effectiveness of testing. With H.264 and Mpeg-4 high-quality, high compression rate of the advantages of comparison, images in the transmission network increases more smoothly. And can through a portable device for remote monitoring at any time.