Jpeg2000 , a newly - modified norm , aims at better function of the image compression processing . with the aid of diverse coding techniques , jpeg2000 is the final - product of superior coding processing over the former ones 本文首先根據(jù)圖像壓縮的基本原理,對(duì)圖像壓縮技術(shù)的主要方法和技術(shù)進(jìn)行了研究分析。
On the basis of the research in wavelet theory and wavelet - based image coding techniques , the author presents the technique of hyperspectral remote sensing image compression for satellites 本文結(jié)合課題,在對(duì)小波理論和圖像的小波編碼技術(shù)進(jìn)行較為深入研究的基礎(chǔ)上,利用小波編碼技術(shù)實(shí)現(xiàn)了星載高光譜遙感圖像的壓縮。
This paper did the exploratory work on the field of industrial design form coding , used the coding technique of mechanical accessory for reference , offered a new thought of industrial design form coding 本文對(duì)工業(yè)設(shè)計(jì)的形態(tài)的編碼技術(shù)進(jìn)行了探索性研究,借鑒了機(jī)械零件的編碼技術(shù),提供了工業(yè)設(shè)計(jì)的形態(tài)編碼的新思路。
Coded modulation technique is a way that combines coding technique with modulation technique to get coding gain in the instance of keeping the power efficiency and frequency efficiency but increasing the complexity of equipment 解決這一問(wèn)題的一種有效方法是利用交織技術(shù)與編碼調(diào)制相結(jié)合,以此獲得在衰落信道下性能的提高。
Space - time code indicates a new idea of providing high transmission rate in wireless communication systems and has recently received considerable attention . this paper is mainly focused on the space - time coding technique <中文摘要> =空時(shí)碼的提出為解決無(wú)線通信系統(tǒng)中的傳輸速率問(wèn)題提供了一條新思路,目前已經(jīng)成為通信研究的一個(gè)熱點(diǎn)。
This thesis introduces the application of wavelet transform in image compression , from ezw and spiht to jpeg2000 still image compression standard ; some wavelet coding techniques are especially introduced : lifting scheme and roi coding techniques 在此基礎(chǔ)上我們進(jìn)一步提出了一個(gè)減少提升方案計(jì)算復(fù)雜度的方法,該方法在jpeg2000中取得了良好的效果。
Experimental results show when image compressing rate is high , decoded image of wavelet transform based compressing method can preserve objects outline well and has no block effect which may appear in dct block coding technique 從運(yùn)行結(jié)果可以看出,當(dāng)圖像壓縮率較高時(shí),使用基于小波分析圖像壓縮方案的解碼圖像能保持清晰的輪廓,無(wú)dct塊編碼壓的方塊效應(yīng)。
In the first part of this paper , the status of this technical field was researched and several private opinions were presented . object - based video coding techniques used in mpeg - 4 standard represent the direction of video coding techniques 本文首先對(duì)數(shù)字視頻壓縮編碼技術(shù)的發(fā)展?fàn)顩r做了研究,對(duì)各種壓縮技術(shù)的分類以及視頻編碼的最新進(jìn)展做了論述并提出了若干獨(dú)到的見解。