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/R76 9.96260 Tf 1 0 0 1 108.72200 224.47800 Tm (15) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 118.68500 224.47800 Tm [ (\135\054) -226.98300 (bringing) -220.98600 <62656e65027473> -220.01200 (to) -221.01000 (man) 14.99010 (y) -221.01700 (real\055w) 9.99343 (orld) -221.00700 (ap\055) ] TJ -68.57270 -11.95590 Td [ (plications\054) -267.99000 (including) -265.01200 (b) 20.00160 (ut) -263.98300 (not) -264.99700 (limited) -263.99300 (to) -265.00200 (image) -264.02000 (search\054) -269.01600 (docu\055) ] TJ 11.95510 TL T* [ (ment) -296.00900 (analysis\054) -307.01600 (automatic) -295.01800 (dri) 24.98480 (ving\054) -306.98300 (and) -295.98400 (human\055computer) -295.98700 (in\055) ] TJ T* [ (teractions\056) -308.00300 (A) -243.01500 (good) -244.01800 (re) 25.00810 (vie) 24.98360 (w) -243.01600 (of) -243.99700 (the) -243.01100 (te) 14.98030 (xt) -243.98600 (detection) -242.99400 (problem) -244.01100 (can) ] TJ T* [ (be) -249.99700 (found) -249.98100 (in) -249.98500 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 101.30000 176.65700 Tm (37) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 111.26200 176.65700 Tm (\135\056) Tj -49.19530 -11.97070 Td [ (Although) -386.01100 (the) -386.00700 (te) 14.98030 (xt) -386.00200 (detection) -385.01000 (problem) -385.98700 (seems) -386 (to) -386.00200 (be) -386.01400 (self\055) ] TJ -11.95470 -11.95510 Td [ (e) 15.01280 (xplanatory) 64.99710 (\054) -255.99400 (namely) -254.99500 (detecting) -254.99300 (te) 14.98030 (xts) -254.99800 (in) -255.00400 (a) -254.98200 (gi) 24.98850 (v) 14.98280 (en) -255.01600 (image\054) -256.01900 (it) -255.00200 (can) ] TJ 11.95510 TL T* [ (be) -245.99800 (interpreted) -245.98100 (in) -245.98600 (man) 14.99010 (y) -245.99300 (dif) 24.98480 (ferent) -246 (w) 10 (ays) -245.99100 (according) -245.98800 (to) -245.98600 (the) -245.99100 (used) ] TJ T* [ (detection) -224.99800 (unit\054) ] TJ /R82 9.96260 Tf 59.05080 0 Td [ (e) 15.01220 (\056g) ] TJ /R76 9.96260 Tf 11.74610 0 Td [ (\056\054) -229.99600 (component) -224.98600 (detection) -226.01600 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 216.78900 128.82100 Tm (2) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 221.77000 128.82100 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 226.50300 128.82100 Tm (33) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 236.46500 128.82100 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 241.19800 128.82100 Tm (17) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 251.16000 128.82100 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 255.89300 128.82100 Tm (22) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 265.85500 128.82100 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 270.58800 128.82100 Tm (39) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 280.55000 128.82100 Tm (\135\054) Tj -230.43800 -11.95590 Td [ (character) -296.98600 (detection) -296.98600 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 132.37300 116.86500 Tm (19) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 142.33600 116.86500 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 147.77500 116.86500 Tm (40) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 157.73800 116.86500 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 163.18700 116.86500 Tm (5) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 168.16800 116.86500 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 173.61800 116.86500 Tm (38) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 183.58000 116.86500 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 189.03000 116.86500 Tm (24) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 198.99300 116.86500 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 204.44200 116.86500 Tm (28) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 214.40500 116.86500 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 219.84400 116.86500 Tm (29) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 229.80700 116.86500 Tm [ (\135\054) -309.00700 (w) 10 (ord) -297.00200 (detec\055) ] TJ -179.69500 -11.95510 Td [ (tion) -369.01200 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 72.60780 104.91000 Tm (10) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 82.57030 104.91000 Tm [ (\135) -369 (\054) -398.01000 (line) -368.98300 (detection) -369.01300 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 158.15700 104.91000 Tm (41) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 168.11900 104.91000 Tm [ (\135\054) -398.01300 (and) -368.99100 (re) 15.00980 (gion\057block) -368.99000 (detection) ] TJ -118.00700 -11.95510 Td (\133) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 53.42970 92.95510 Tm (42) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 63.39220 92.95510 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 68.40350 92.95510 Tm (34) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 78.36600 92.95510 Tm [ (\135\056) -317.98700 (From) -252.98800 (the) -253.00900 (perspecti) 24.99090 (v) 14.98280 (e) -252.98200 (of) -253.01500 (detection) -252.01200 (speed\054) -253.98700 (the) -253.00900 (com\055) ] TJ -28.25390 -11.95510 Td [ (ponent) -207.98200 (detection) -207 (is) -207.99100 (the) -207.99700 (most) -208.01300 (handy) -207.00800 (because) -208.00700 (components) -208.00200 (can) ] TJ 258.75000 473.32000 Td [ (be) -321.98500 (ef) 25.00810 <026369656e746c79> -321.00800 (e) 15.01220 (xtracted) -322.01700 (from) -322.01500 (lo) 24.98600 (w\055le) 25.01540 (v) 14.98280 (el) -321 (features) -321.98500 (lik) 10.01790 (e) -321.99000 (edges\054) ] TJ 11.95510 TL T* [ (and) -206 (some) -205.98500 (heuristic) -206.02000 (rules) -205.01500 (are) -206.01500 (also) -205.99000 (ef) 25.00560 (fecti) 25.01540 (v) 14.98280 (e) -206.01000 (to) -205.99500 (distinguish) -206.02000 (te) 14.98280 (xt) ] TJ 11.95590 TL T* [ (from) -360.00900 (non\055te) 14.99260 (xt\056) -639.99600 (From) -359.98900 (the) -360.00900 (perspecti) 24.99090 (v) 14.98280 (e) -359.98400 (of) -360.01800 (rigorous) -359.99400 (problem) ] TJ 11.95510 TL T* [ <6465026e6974696f6e2c> -259 (character) -258.01300 (detection) -256.99100 (is) -257.00100 (highly) -258.00100 (preferred) -256.99100 (because) -257.99600 (a) ] TJ T* [ (character) -308.00500 (is) -308.01500 (naturally) -308.98300 (a) -307.99300 (unit) -308.00300 (in) -308.01700 (an) 15.01710 (y) -307.98300 (language\054) -322.99000 (and) -307.98300 (there) -309.00700 (are) ] TJ T* [ (al) 10 (w) 10 (ays) -269.00700 (a) -269.01900 (small) -268.98500 (number) -270.01400 (of) -269.01400 (characters\056) -367.00700 (From) -270.00400 (the) -269.00400 (perspecti) 24.99090 (v) 14.98280 (e) ] TJ T* [ (of) -321.98300 (human) -322.00300 (readable) -321.00800 (results\054) -339.99700 (the) -322.01500 (most) -321.01500 (preferred) -322 (is) -322.01000 (either) -322.01500 (the) ] TJ T* [ (w) 10 (ord\055) -344.01900 (or) -344.99900 (line\055le) 24.99090 (v) 14.98280 (el) -344.01900 (detection\056) -593.01400 (From) -345.01100 (the) -344.01100 (perspecti) 24.99090 (v) 14.98280 (e) -343.98700 (of) -345.00100 (re\055) ] TJ 11.95630 TL T* [ (ducing) -250.99500 (f) 9.99588 (alse) -251.01200 (alarms\054) -251 (the) -249.99000 (re) 15.00730 (gion\057block\055le) 24.98600 (v) 14.98280 (el) -251.01200 (detection) -250.99200 (is) -251.00200 (pre\055) ] TJ 11.95470 TL T* [ (ferred) -314 (because) -313.00900 (it) -314.01100 (contains) -314.00200 (a) -313.99200 (lar) 17.99700 (ger) -313.01200 (image) -314.01100 (conte) 14.98770 (xt) -314.01600 (re) 15.00730 (gion) -314.00200 (to) ] TJ T* [ (dif) 24.98600 (ferentiate) -295.00700 (te) 14.98030 (xt) -294.99700 (from) -295 (non\055te) 14.99260 (xt\056) -445.00900 (Ho) 24.98600 (we) 25.01540 (v) 14.98280 (er) 39.98350 (\054) -307.00300 (te) 14.98280 (xt) -295 (detection) -294.98500 (is) ] TJ T* [ (not) -195.98900 (an) -196.00700 (isolated) -196.99700 (task\054) -207.00700 (b) 20.00160 (ut) -195.99400 (is) -195.99400 (closely) -195.98700 (related) -196.00200 (to) -197.01600 (te) 14.98280 (xt) -195.99700 (recognition\056) ] TJ T* [ (From) -270.98400 (the) -269.98700 (perspecti) 24.99090 (v) 14.98280 (e) -271.01800 (of) -269.99200 (a) -271.01800 (do) 24.98600 (wn\055streaming) -270 (recognition) -271.01800 (sys\055) ] TJ T* [ (tem\054) -300.99100 (the) -291.00300 (most) -291.02000 (preferred) -290.98800 (is) -292.01500 (t) 0.98513 (he) -291.99000 (line\055) -291 (or) -291.01000 (w) 10.00320 (ord\055le) 24.98110 (v) 14.98280 (el) -291.00500 (detection) ] TJ 11.95590 TL T* [ (depending) -387.98400 (on) -388.00400 (whether) -388.98700 (a) -388.01900 (recognition) -388.01900 (system) -387.97900 (is) -387.99900 (trained) -388.97900 (by) ] TJ 11.95510 TL T* [ (te) 14.98030 (xt) -322.99300 (lines) -322.98300 (or) -323.00200 (isolated) -323.01500 (w) 10 (ords\056) -528.99500 (Consequently) 64.98430 (\054) -340.99700 (there) -323.00500 (are) -323.01500 (three) ] TJ T* [ (common) -228.00600 (strate) 14.98520 (gies\072) -298.98700 (1\051) -227.99900 (bottom\055up) -229.01100 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 446.91400 363.03800 Tm (1) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 451.89500 363.03800 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 456.65700 363.03800 Tm (24) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 466.62000 363.03800 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 471.38200 363.03800 Tm (5) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 476.36300 363.03800 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 481.12500 363.03800 Tm (38) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 491.08800 363.03800 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 495.85000 363.03800 Tm (29) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 505.81300 363.03800 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 510.58500 363.03800 Tm (19) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 520.54700 363.03800 Tm [ (\135\072) -299.00400 <02727374> ] TJ -211.68500 -11.95510 Td [ (detect) -219.99500 (te) 14.98030 (xt) -219.99000 (at) -221.01900 (the) -219.99500 (component\055) -220.00700 (or) -220.00300 (character) 19.98200 (\055le) 25.01540 (v) 14.98280 (el\054) -225.99700 (and) -221.01700 (con) 39.99820 (v) 14.98280 (ert) ] TJ 11.95510 TL T* [ (initial) -321.98800 (detection) -322 (results) -322 (to) -322.01500 (a) -321.99000 (desired) -322.01500 (w) 10.00320 (ord\055) -321.98100 (or) -321.98500 (line\055le) 24.99090 (v) 14.98280 (el\073) -358.00900 (2\051) ] TJ T* [ (top\055do) 25 (wn) -219.01500 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 352.29900 327.17200 Tm (42) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 362.26200 327.17200 Tm [ (\135\072) -293.98500 <02727374> -218.99800 (detect) -219.01700 (te) 14.98280 (xt) -217.99300 (on) -219.01200 (the) -219.01200 (block) -219.00300 (le) 25.02030 (v) 14.98280 (el\054) -225.01600 (and) -219.01700 (break) ] TJ -53.39960 -11.95590 Td [ (a) -402.01600 (block) -401.99400 (to) -402 (a) -402.01600 (w) 10 (ord\055) -400.98900 (or) -402.00900 (line\055le) 24.99090 (v) 14.98280 (el) -402.00600 (if) -402.00600 (necessary\073) -477.98900 (and) -402.00600 (3\051) -402.01100 (h) 4.98446 (y\055) ] TJ 11.95510 TL T* [ (brid) -292.99500 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 331.14800 303.26100 Tm (34) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 341.11100 303.26100 Tm [ (\135\072) -394.98800 (tak) 10.00570 (e) -293.01500 (adv) 24.98110 (antage) -291.98600 (of) -293.01000 (both) -292.00500 (bottom\055up) -293 (and) -293.00500 (top\055do) 25 (wn) ] TJ -32.24880 -11.95510 Td [ (strate) 14.98520 (gies\056) -530.99200 (Actually) 64.99410 (\054) -342.01900 (these) -324.01500 (are) -323.01500 (the) -324.01500 (mainstream) -323.99000 (frame) 25.01050 (w) 10.00320 (orks) ] TJ 11.95470 TL T* [ (used) -332.99100 (in) -332.01100 (te) 14.98030 (xt) -332.99100 (detection) -333.01800 (until) -331.99400 (no) 24.98600 (w) 65.01370 (\054) -354.01400 (although) -331.98900 (people) -332.98900 (may) -332.98900 (use) ] TJ T* [ (dif) 24.98600 (ferent) -434.00800 (component\057character) -435 (detectors\054) -479.98400 (rules) -433.99600 (to) -435.01600 (connect) ] TJ 11.95590 TL T* [ (character) -333.02000 (bounding) -333 (box) 14.99260 (es) -333.00300 (to) -332.99300 (a) -333.00800 (w) 10.00320 (ord\057line\054) -353.99000 (rules) -332.99300 (to) -332.99300 (di) 24.98600 (vide) -332.98900 (a) ] TJ 11.95510 TL T* [ (re) 15.00980 (gion) -250.01500 (into) -250.01200 (w) 10 (ords\057lines\054) -249.99300 (etc\056) ] TJ 11.95510 -19.02300 Td [ (Early) -241.99100 (ef) 25.00810 (forts) -241.00600 (under) -241.99100 (the) -241.00900 (mainstream) -242.00400 (frame) 25.01050 (w) 10.00320 (orks) -241.00400 (focus) -241.98900 (on) ] TJ -11.95510 -11.95510 Td [ (v) 24.98110 (arious) -211.00900 (heuristics) -210.99200 (that) -211.98900 (are) -210.99700 (helpful) -211.00400 (for) -210.98400 (detecting) -211 (characters) -212.01400 (or) ] TJ 11.95590 TL T* [ (character) -258.99400 (components\056) -338.01700 (The) -259.01100 (tw) 10.00810 (o) -259.01100 (most) -258.98600 (well\055kno) 25 (wn) -259.98600 (ones) -259.00600 (are\072) ] TJ 11.95510 TL T* [ (1\051) -350.01800 (maximally) -350.01300 (stable) -350.98300 (e) 15.01220 (xtremal) -350 (re) 15.00730 (gions) -349.99100 (\050MSER\051) -349.98600 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 504.92600 188.59600 Tm (2) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 509.90700 188.59600 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 515.88500 188.59600 Tm (18) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 525.84700 188.59600 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 531.83500 188.59600 Tm (22) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 541.79700 188.59600 Tm (\135) Tj -232.93500 -11.95510 Td [ (and) -352.99500 (2\051) -352.99700 (strok) 10.01790 (e\055width) -352 (transform) -353.02000 (\050SWT\051) -352.98500 (\133) ] TJ ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 469.10000 176.64100 Tm (6) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 474.08200 176.64100 Tm (\054) Tj ET Q 0 1 0 rg q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 480.08900 176.64100 Tm (17) Tj ET Q 0 g q 10 0 0 10 0 0 cm BT /R76 9.96260 Tf 1 0 0 1 490.05200 176.64100 Tm 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