Image compression and transmission system for digital down-hole television

摘要：

Image compression method and long distance transmission technology are technical difficulties in researching digital down-hole television. A down-hole image compression and transmission system is designed. Data are transmitted with quad logging cables and the data transfer rate is lOOKbps; hardware image compression method based on the wavelets transform is adopted and image data are treated with the wavelets transform, quantization and coding. By controlling color selection, quantizes .coefficients, quality box parameters, background contrast and field rate to achieve dynamic control of compression rate and obtain high compression ratio simultaneously. Two compression ratio control methods are presented according to data transfer rate and typical borehole image and steady image can be observed in 3000m deep mine.

关键词： image compression transmission compression ratio dynamic control

作者: SU JUAN YAN ZHENG-GUO

作者单位: Key Laboratory of Photoelectric Logging and Detecting of Oil and Gas, Ministry of Education.Xian Shiyou University, Xian, Shaanxi 710065, China

会议类型: 国际会议

会议名称: 2011 3nd International Conference on Mechanical and Electronics Engineering(2011年第三届机械与电子工程国际会议 ICMEE2011)

会议地点: 合肥

会议语种:英文

页码: 3068-3071

在线出版日期: 2011-09-23（万方平台首次上网日期，不代表论文的发表时间）