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MỤC LỤC
BỘ GIÁO DỤC VÀ ĐÀO TẠO 9
BỘ GIÁO DỤC VÀ ĐÀO TẠO 9
TÌM HIỂU BÀI TOÁN NHẬN DẠNG BIỂN SỐ XE 10
ĐỒ ÁN TỐT NGHIỆP ĐẠI HỌC HỆ CHÍNH QUY 10

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Chương 3: 40
BÀI TOÁN NHẬN DẠNG KÝ TỰ 40
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PHẦN KẾT LUẬN 61
TÀI LIỆU THAM KHẢO 62
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PHẦN GIỚI THIỆU
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1.2. Khái niệm về nhận dạng biển số xe:
1.2.1 Khái niệm & ứng dụng:
a) Khái niệm:
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1.2.2 Phân loại biển số xe:
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+/V VO
3. Màu trắng 2 chữ, 5 số là biển dành cho người nước ngoài:
ŽO(MV)'=6/'/9=
0k
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7FK:H5'/9u GH./_`.*V=O(GH.*X.4B
™pVGHk!MMMŽ^^O(T/U)5w`5*=5<5d6/GXK:<)u.*37'65*dš•
'/€92( GH5:H/O(!0O(T/U)MV5x9.e)'OF)*G4
4. Những xe mang biển 80 gồm có :
Ž<59)5x9a:)'>g)'Q)'
Žy)`*c)'*x.85*)>?5
Žy)`*c)'$:H5*]/
Žy)`*c)'*m)*`*x
Ž],)'9)
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2(5<5.*()*2/3)*m)*`*x
Ž])'=6/'/9=
Ž/-)f/U7G=<.)*Z)@Z).H/59=
Ž=(<))*Z)@Z).H/59=
Ž(/.a:^L)*v)*/ 97
Ž(/./_)')l// 97
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Žn52/-)*m)*.a8K:H5'/9

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19)@OVa=79)d>t5d6/@/-)5*=5<5*./_`5S))(^B
• •.>•)'5x95<5*./_`5S))(^O(+/U)GHMVd>t5T9=T=5T•/d>‚)'
2/L)B=dlu5l.*U@b)'`*>g)'`*<``*<.*/-)T/3)uG9:dl@b)'`*’`T/_)de/
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*()*)*S)@6)'5<5fP.4•.a3)7•/2b)'5=)B
• :d/U7+d]5*m)*M<559=B(5<5*-.*H)')*S)@6)'d9`*q)dL:
`*<..a/U).*V=*>?)'./_`5S))(^B
!
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fP.4BE•/5<5*./_`5S)5l7].>:2()*>t5d/U7B9GH5<5X)'@Y)'dL:GN
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5<5*./_`5S)=:'*B
1.4 Hướng giải quyết:
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2b)'5*X9T/U)GHMVBE•/5<5*'/Q/K:^_.5l)*€)'>:d/U72(*6)5*_a/3)'
5x9)lB
*) Một số đặc điểm về biển số xe ở Việt Nam:
• /3:5*:Ÿ)2Lfm5*.*>?5+ž7•/)>?5.*>‚)'5l./3:5*:Ÿ)2Lfm5*
.*>?5)*w.d8)*BH/2?/)>?5.9uT/U)GHMVK:/d8)*f*<d‹)'dL:5*=7•/O=6/
MVu.;O-5*/L:@(/ua])'5*=7•/O=6/MVO()*>)*9:BH/2?/O=6/MV5l7].
*()'fP.4.*v.‘O-@(/ra])'O(+
IBRrIB\
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Chương 2:
PHÁT HIỆN VÙNG CHỨA BIỂN SỐ XE
2.1 Một số khái niệm cơ bản:
2.1.1 Tổng quan về ảnh
a. Ảnh và điểm ảnh:
)*O(7Q)'GH.*45*9/5*/L:

.*Ud>92LQ)*)*8`*Z)T{)'5<5fj.*:S.`*Z))'>h)'B9fP*/-:ŠO(.S`5<5
d/U72b)'|d/U7dV)}2(
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G
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7].@F^5<5d/U7'n/O(d>‚)'d/+
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+−−+−−++∪= nmnmnmnmN
e. Chu tuyến của ảnh:
Định nghĩa chu tuyến:
*:.:^_)5x97].dH/.>t)'Q)*

Chu tuyến đối ngầu:
9/5*:.:^_)œ¥0u u„u)¦2(¤œ¥$0u$ u„u$)¦d>t5'n/O(
*9/5*:.:^_)dH/)'A:5x9)*9:)_:2(5*‘)_:+
•
ji∃∀
G9=5*=/2($§O(kO<)''/L)'5x9)*9:
• <5d/U7/O(Q)*.*v$§O()L)2()'>t5O6/B
Chu tuyến trong:
*:.:^_)d>t5'n/O(5*:.:^_).a=)')_:2(5*‘)_:+
• *:.:^_)dH/)'A:¤5x9)lO(5*:.:^_)5x95<5d/U7)_)B
• ]@(/5x95*:.:^_)¤)*š*g)d]@(/5x95*:.:^_)
Chu tuyến ngoài:
*:.:^_)d>t5'n/O(5*:.:^_))'=(/)_:2(5*‘)_:+
• *:.:^_)dH/)'A:¤5x9O(5*:.:^_)5<5d/U7)L)
• ]@(/5x95*:.:^_)¤O?)*g)d]@(/5x95*:.:^_)
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5ld]@(^T{)'7].T9=K:9)*dH/.>t)'B
2.1.2 Phương pháp tách dò ngưỡng tự động
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2.2 Biên và các phương pháp phát hiện biên.
*) Khái niệm về biên:
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*) Các phương pháp phát hiện biên:
*) Phương pháp tiếp cận theo kiểu cổ điển
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