Analysis And Application Of Image Compression Technology In Mobile Internet

With the advent of the digital information age,and the rapid popularity of broadband mobile communication technology applications,the application of mobile internet technology has penetrated into every aspect of people’s lives.With the spread and popularization of 4G mobile communication technology,the real-time transmission of high-definition images is becoming more and more popular in personal mobile communications.The rapid and effective transmission of digital information brings great convenience to people’s information communication.Although the future of 5G communications transmission ra te can be achieved on the 1Gbps theory,the public network,realize the real-time transmission of high-definition images,is still very difficult,therefore need to consider how to realize image transmission without distortion,to timely feedback.The application of digital image compression and transmission technology in mobile internet has become a hot research topic.Firstly,this paper introduces the mobile communication 4G and future 5G standards,transmission rate,technical solutions,etc.And further understand the status of mobile communications and the future development trend.Then,we describe the application of video and image transmission technology via mobile communication network.In the 4G era,a combination of variety networking technology will make large-capacity fast data transmission more flexible,and these enable image compression and transmission technology via mobile internet with more choices.According to the study need,I have learned and understood the basics of image compressio n.This paper deeply researches and systematically expounds the current coding algorithm,the international standard of image compression,and the evaluation system of the commonly used image compression.The author deeply understands the principle and method of wavelet transform,and has a certain knowledge and understanding to the basic principle of wavelet transform.The author studies the image compression coding technology based on wavelet transform,analyzes the characteristics of wavelet image compr ession coding,and deeply understands the idea and the general steps of wavelet compression coding.Based on the research of EZW principle and method,the paper deeply understands and probes the idea and method of hierarchical coding,based on the analysis of the advantages and disadvantages of EZW, the author study deeply on SPIHT,and simulate and validate the algorithms by MATLAB.Finally,compare the two algorithms in the DM6467 T development environment,and compare the features of the sub-band image of the embedded zerotree coding algorithm(EZW)and the zero crossing zerotree(LZC)algorithm after wavelet transformation.The results showed that algorithms can achieve hierarchical image compression and transmission.It is helpful to explore the theory o f image compression in the near future,and have a more comprehensive understanding of the compression and transmission of images in mobile internet.The future research direction is to study the coding and transmission technology of region of interest in images,and combine the hierarchical coding with ROI encoding technology to further improve the efficiency of image compression and transmission.At the same time,the application of algorithm in mobile terminal is completed.