航天返回与遥感
航天返迴與遙感
항천반회여요감
SPACECRAFT RECOVERY & REMOTE SENSING
2012年
3期
65-74
,共10页
徐文%葛曙乐%龙小祥%王小燕%李俊杰
徐文%葛曙樂%龍小祥%王小燕%李俊傑
서문%갈서악%룡소상%왕소연%리준걸
三线阵相机%信噪比%信息熵%“资源三号”卫星
三線陣相機%信譟比%信息熵%“資源三號”衛星
삼선진상궤%신조비%신식적%“자원삼호”위성
TLC camera%signal to noise ratio%entropy%ZY-3 satellite
为了推动＂资源三号＂（ZY-3）卫星影像数据早日为相关领域提供服务,文章采用主观评价和客观评价相结合的方法,对资ZY-3卫星三线阵图像的辐射特性进行了全面评价。分析结果表明,ZY-3卫星三线阵相机图像清晰,信噪比高,能够有效反映不同地物的细节特征,在量化深度和细节表现等方面具有优势。
為瞭推動＂資源三號＂（ZY-3）衛星影像數據早日為相關領域提供服務,文章採用主觀評價和客觀評價相結閤的方法,對資ZY-3衛星三線陣圖像的輻射特性進行瞭全麵評價。分析結果錶明,ZY-3衛星三線陣相機圖像清晰,信譟比高,能夠有效反映不同地物的細節特徵,在量化深度和細節錶現等方麵具有優勢。
위료추동＂자원삼호＂（ZY-3）위성영상수거조일위상관영역제공복무,문장채용주관평개화객관평개상결합적방법,대자ZY-3위성삼선진도상적복사특성진행료전면평개。분석결과표명,ZY-3위성삼선진상궤도상청석,신조비고,능구유효반영불동지물적세절특정,재양화심도화세절표현등방면구유우세。
TLC camera onboard ZY-3 is a new payload with stereo mapping capability,whose radiometric image quality needs to be analysed to improve its application in various fields. Subjective and objective methods are both employed in this paper to perform a thorough analysis. Images from ZY-3 TLC camera have high SNR, with details of different objects well expressed. Comparison with similar cameras shows the radiometric image quality of ZY-3 has significant improvement over that of CBERS-02B. ZY-3 TLC camera has higher quantization depth and better detail feature presentation than thost of SPOT-5 and ALOS.
