科技通报
科技通報
과기통보
BULLETIN OF SCIENCE AND TECHNOLOGY
2015年
8期
265-267
,共3页
3压缩感知%网格编码量化%2D正交匹配追踪算法
3壓縮感知%網格編碼量化%2D正交匹配追蹤算法
3압축감지%망격편마양화%2D정교필배추종산법
compressive sensing%trellis coded quantization%2D orthogonal matching pursuit
压缩感知理论提出至今,学术界对其理论研究取得了重大的成果,并将其应用于各个领域.本文主要研究其量化方式,将网格编码量化(TCQ)方法应用于压缩感知的信号量化过程,基于压缩感知理论获取采样信号,采样信号运用网格编码量化方式量化,解码端对信号重构,重构使用2D正交匹配追踪算法.实验结果表明,该方法可以减少图像压缩时间,不影响压缩图像的质量.
壓縮感知理論提齣至今,學術界對其理論研究取得瞭重大的成果,併將其應用于各箇領域.本文主要研究其量化方式,將網格編碼量化(TCQ)方法應用于壓縮感知的信號量化過程,基于壓縮感知理論穫取採樣信號,採樣信號運用網格編碼量化方式量化,解碼耑對信號重構,重構使用2D正交匹配追蹤算法.實驗結果錶明,該方法可以減少圖像壓縮時間,不影響壓縮圖像的質量.
압축감지이론제출지금,학술계대기이론연구취득료중대적성과,병장기응용우각개영역.본문주요연구기양화방식,장망격편마양화(TCQ)방법응용우압축감지적신호양화과정,기우압축감지이론획취채양신호,채양신호운용망격편마양화방식양화,해마단대신호중구,중구사용2D정교필배추종산법.실험결과표명,해방법가이감소도상압축시간,불영향압축도상적질량.
Compressive sensing has been applied to many areas, but the reaserch about quantizationg have less works The trellis coded quantization (TCQ) is applied to the signal quantization process of compressed sensing, The signal acquired with compressed sensing was qualified by trellis coded quantization, after that the original signal was reconstructed by us-ing 2D Orthogonal Matching Pursuit. The experimental results showed that the quantization method could effectively re-duce the time and keep the quality of image compression.