文档介绍：上海交通大学
硕士学位论文
低信噪比红外图像弱小目标检测研究
姓名:朱金标
申请学位级别:硕士
专业:控制理论与控制工程
指导教师:李建勋
20090201
Ϟ⍋Ѹ䗮ᄺ⸩ᄺԡ䆎᭛ᨬ㽕
ᔅᇣⳂᷛẔ⌟ⷨおڣԢֵా↨㑶
ᨬ㽕
ᄺ㑶ܝᔅᇣⳂᷛẔ⌟䯂乬ϔⳈᰃڣ䖥ᑈᴹˈԢֵా↨㑶
ᄺӴᛳ఼㑶Ў㹿ࡼӴᛳ఼ˈ⦄ҷѝЁܝ乚ඳⱘⷨお⛁⚍DŽڣ
Ёᔅᇣڣ᳝䕗ᔎⱘ⫳ᄬ㛑ˈԚ݊⫼䎱⾏䕗ⷁDŽⷨおԢֵా↨㑶
↨ⳂᷛⱘᅲᯊẔ⌟Ϣ䎳䏾ㅫ⊩ˈৃҹᅲ⦄ᠽሩ⫼䎱⾏ⱘⳂⱘDŽԢֵా
Ԣˈজ᮴ᔶ⢊ǃ↨ాֵڣ䎱⾏䖰ˈڣᔅᇣⳂᷛẔ⌟ⱘ䲒⚍Ѣ˖Ⳃᷛ៤
ˈ㒍⧚ㄝ⡍ᕕֵᙃৃҹ߽⫼DŽⳌᇍѢ݊Ҫ㑶ⳂᷛẔ⌟Ϣ䎳䏾䯂乬㗠㿔
Ẕ⌟䎳䏾ህ៤Ўњϔعབԩᅲ⦄ᇍᴖ㚠᱃ᴵӊϟ㑶ᔅᇣⳂᷛⱘ〇
乍᳝ᅲ䰙ᛣНᣥᗻⱘⷨお䇒乬DŽ
ᔅᇣⳂᷛẔ⌟䯂乬ˈҢᭈԧϞ㒭ߎڣᴀ᭛䅼њԢֵా↨ⱘ㑶
њϔᴵᔅᇣⳂᷛẔ⌟ⱘⷨおᗱ䏃DŽᴀ᭛ᇚ㑶ᔅᇣⳂᷛẔ⌟䯂乬ߚЎ
ⱘᏻ䯈݇㘨Ẕ⌟ϸϾᮍڣᔅᇣⳂᷛẔ⌟Ѣᑣ߫ڣѢऩᏻⱘ㑶
䴶ˈߚ߿䖯㸠њ⏅ܹǃ㋏㒳ⱘⷨおˈЏ㽕ⱘⷨお៤ᵰབϟ˖
乘໘⧚䯂乬ˈ䆺㒚ߚᵤњ㑶ڣ䩜ᇍᴖ㚠᱃ᴵӊϟⱘ㑶
ˈ⫣乘໘⧚ᮍڣᗻDŽ㒧ড়Ⳃࠡᐌ⫼ⱘ⡍ڣᔅᇣⳂᷛǃ㚠᱃ҹঞాໄⱘ៤
Ўৢ㓁Ẕ⌟߯䗴᳝߽ᴵӊ䖯ˈ↨ాֵڣህབԩ᳝ᬜᦤ催㑶ᔅᇣⳂᷛ
㸠њ⏅ܹⷨおDŽℸ⸔Ϟˈ䖯㸠њぎ䯈ऍ䜡Ⓒ⊶఼ⱘӬ࣪䆒䅵ˈᑊᅲ
偠ӓⳳњӬ࣪䆒䅵ⱘऍ䜡Ⓒ⊶఼ⱘӬ䍞ᗻ㛑DŽ
ⱘ᭄ڣⱘᔅᇣⳂᷛẔ⌟䯂乬ˈᓎゟњ㑶ڣ䩜ᇍऩᏻ㑶
乘໘⧚üü㚠᱃Ԅ䅵ϢᡥࠊüüⳂᷛẔ⌟üüⳂڣᄺൟˈᑊᦤߎњ
I 义
Ϟ⍋Ѹ䗮ᄺ⸩ᄺԡ䆎᭛ᨬ㽕
ⳂᷛẔ⌟ᮍḜDŽڣᷛ⡍ᗻ㒳䅵ⱘऩᏻ㑶
ᦤߎњϔ⾡ᬍ䖯ⱘ᭄ᄺᔶᗕᄺⒸ⊶ㅫ⊩DŽ䩜ᇍ㒣᭄ᄺᔶᗕᄺ
ᔅᇣⳂᷛẔ⌟ⱘϡ䎇ˈҢᬍ䖯ᔶᗕবᤶӬ࣪㒧ᵘڣⳈᑨ⫼Ѣ㑶
ܗ㋴ᮍ䴶ܹˈᦤߎњϔ⾡ᬍ䖯ⱘᔶᗕᄺⒸ⊶ᮍ⊩DŽ㒧ড়Ӭ࣪䆒䅵ⱘऍ
䜡Ⓒ⊶఼ǃᬍ䖯ⱘᔶᗕᄺ㚠᱃ᡥࠊ㞾䗖ᑨ䮼䰤ⱘẔ⌟ㅫ⊩⬅Ѣᱎ㛑
ഄ㵡ܹњᑨ⫼㚠᱃ⱘ⡍ᗻˈⳳᅲഄᛳⶹ㚠᱃ˈ䖯㸠㚠᱃Ԅ䅵Ẕ⌟ˈҢ
㗠ᅲ⦄ᇍԢֵా↨ⱘᔅᇣⳂᷛẔ⌟ⱘ㡃དẔ⌟ᗻ㛑DŽ
䆒䎳䏾ⱘ؛ⱘᔅᇣⳂᷛẔ⌟䯂乬ˈߚᵤڣ䩜ᇍᑣ߫㑶
Ёڣ⸔ϞˈᓩܹẔ⌟ࠡ䎳䏾݇㘨Ẕ⌟ⱘᗱᛇˈⷨおᑊߚᵤњᑣ߫
Ⳃᷛ⚍ⱘԡ㕂Ⳍ݇ᗻ䖤ࡼ䔼䗍ⱘ䖲㓁ᗻ㾘ᕟᗻˈᦤߎњϔ⾡ᬍ䖯ⱘ
䆒䎳䏾ⱘẔ⌟ᮍ⊩ˈ䖯ϔℹᦤ催њẔ⌟ὖ⥛ˈ䰡Ԣњ㰮؛㒧ᵘ࣪ߚᬃ
䄺ὖ⥛DŽ
乘໘⧚ˈ㚠᱃ᡥࠊˈऍڣᔅᇣⳂᷛˈⳂᷛẔ⌟ˈˈڣ䬂䆡˖㑶݇
䆒䎳䏾؛䜡Ⓒ⊶ˈ㞾䗖ᑨⒸ⊶ˈ᭄ᄺᔶᗕᄺˈ
II 义
Ϟ⍋Ѹ䗮ᄺ⸩ᄺԡ䆎᭛ ABSTRACT
Investigation on Dim Point Target Detection in Low SNR Infrared
Image
ABSTRACT
The detection and tracking of dim point targets in the optical and infrared
images has been the subject of intense investigation for no more than two
decades. The optical and infrared sensors are passive sensors, which are
valued for their strong survival capacity in battlefields, but their maximum
detection range is critical. The basic problem inherent to extent the detection
range is the detection of small, low observable targets in images and
subsequent estimation of the target trajectories. The difficulties of the
detection of dim points lies in the follows: the signal-to-noise ratio is
sufficiently low due to the large detection range, no information content of
targets si