OCR應用在電子元件上的辨識

 OCR Application

Example1: for SMD idenfication:

Text detect by CRAFT

 

OCR文字偵測

原始照片為網路上下載，再套上OCR文字偵測顯示結果，若有侵權請告知移除

彩色區域為偵測到文字的部份

Output 10 coordinates of corresponding text blocks

1.  144,196,286,194,287,259,145,261
2.  298,198,509,196,509,259,298,262
3.  148,262,286,262,286,321,148,321
4.  368,266,513,264,513,321,369,323
5.  145,331,472,333,471,395,145,393
6.  146,404,445,404,445,454,146,454
7.  146,453,512,453,512,502,146,502
8.  147,502,481,499,481,551,148,553
9.  148,550,614,550,614,600,148,600
10.513,600,714,600,714,648,513,648

 After image pre-processing:

 

 OCR result1:

  After image pre-processing:

 OCR result2:

 

 

Example2: for datasheet interpretation:

Text detect of TI datasheet by CRAFT

OCR results:

([[75, 11], [127, 11], [127, 31], [75, 31]], 'TEXAS', 0.999188403930061)
([[474, 4], [928, 4], [928, 32], [474, 32]], 'PACKAGE MATERIALS INFORMATION', 0.6743955072876302)
([[77, 29], [189, 29], [189, 47], [77, 47]], 'INSTRUMENTS', 0.9648384864438728)
([[37, 69], [105, 69], [105, 83], [37, 83]], 'WWM Ii.com', 0.2591723778552562)
([[851, 67], [927, 67], [927, 83], [851, 83]], '17-Dec-2020', 0.9694632061866851)
([[36, 116], [334, 116], [334, 140], [36, 140]], 'TAPE AND REEL INFORMATION', 0.9635275648694305)
([[77, 153], [209, 153], [209, 173], [77, 173]], 'REEL DIMENSIONS', 0.9998498148196943)
([[519, 153], [649, 153], [649, 171], [519, 171]], 'TAPE DIMENSIONS', 0.9997295073411925)
([[501, 177], [523, 177], [523, 193], [501, 193]], 'KO', 0.5158395828404266)
([[547, 177], [575, 177], [575, 193], [547, 193]], 'P1', 0.9455686092981291)
([[277, 265], [311, 265], [311, 281], [277, 281]], 'Reel', 0.7803041934967041)
([[263, 281], [325, 281], [325, 297], [263, 297]], 'Diameter', 0.9999848270868563)
([[482, 292], [525, 292], [525, 311], [482, 311]], 'Cavity', 0.9210923809942128)
([[575, 291], [597, 291], [597, 309], [575, 309]], 'AO', 0.6634183015102135)
([[411, 321], [777, 321], [777, 337], [411, 337]], 'Dimension designed t0 accommodate the component width', 0.867950833608363)
([[411, 337], [783, 337], [783, 355], [411, 355]], 'Dimension designed t0 accommodate the component lenglh', 0.5326388348994303)
([[410, 354], [803, 354], [803, 372], [410, 372]], 'Dimension designed to accommodate the component thickness', 0.833407196857614)
([[411, 373], [607, 373], [607, 387], [411, 387]], 'Overall width of the carrier lape', 0.8950718833069984)
([[411, 391], [661, 391], [661, 405], [411, 405]], 'Pitch between successive cavity centers', 0.8034738021947719)
([[273, 435], [379, 435], [379, 453], [273, 453]], 'Reel Width (W1)', 0.46326035723651526)
([[211, 453], [461, 453], [461, 473], [211, 473]], 'QUADRANT ASSIGNMENTS FOR PIN', 0.9963498234249092)
([[473, 457], [627, 457], [627, 473], [473, 473]], 'ORIENTATION IN TAPE', 0.9946526883413003)
([[579, 485], [677, 485], [677, 501], [579, 501]], 'Sprocket Holes', 0.8864782738301257)
([[359, 537], [381, 537], [381, 551], [359, 551]], '02', 0.79855056080002)
([[419, 573], [441, 573], [441, 589], [419, 589]], '03', 0.9665244876000211)
([[455, 573], [477, 573], [477, 587], [455, 587]], '04', 0.7811954083920432)
([[557, 571], [699, 571], [699, 587], [557, 587]], 'User Direction of Feed', 0.7642206626169022)
([[371, 635], [487, 635], [487, 651], [371, 651]], 'Pocket Quadrants', 0.9271827968630615)
([[43, 673], [199, 673], [199, 687], [43, 687]], 'All dimensions are nomina', 0.9420986204801013)
([[101, 695], [149, 695], [149, 711], [101, 711]], 'Device', 0.9991779633515514)
([[210, 693], [333, 693], [333, 713], [210, 713]], 'Package |Package', 0.7039944657559438)
([[341, 695], [371, 695], [371, 711], [341, 711]], 'Pins', 0.9980747103691101)
([[391, 695], [423, 695], [423, 711], [391, 711]], 'SPQ', 0.9748639491626118)
([[455, 695], [487, 695], [487, 711], [455, 711]], 'Reel', 0.9999948740005493)
([[519, 695], [547, 695], [547, 711], [519, 711]], 'Reel', 0.8327087175396152)
([[581, 695], [603, 695], [603, 711], [581, 711]], 'Ao', 0.43958669404583417)
([[679, 695], [701, 695], [701, 711], [679, 711]], 'Ko', 0.7125325255699436)
([[831, 695], [861, 695], [861, 711], [831, 711]], 'Pinl', 0.9302820563316345)
([[221, 709], [257, 709], [257, 729], [221, 729]], 'Type', 0.9999449253082275)
([[274, 709], [333, 709], [333, 729], [274, 729]], 'Drawing', 0.6588587928000398)
([[441, 711], [503, 711], [503, 727], [441, 727]], 'Diameter]', 0.4454272609469556)
([[515, 711], [555, 711], [555, 727], [515, 727]], 'Width', 0.876041768773338)
([[573, 711], [609, 711], [609, 727], [573, 727]], '(mm)', 0.8557351242820257)
([[623, 713], [659, 713], [659, 727], [623, 727]], '(mm)', 0.9461450576782227)
([[671, 711], [707, 711], [707, 727], [671, 727]], '(mm)', 0.9999163746833801)
([[719, 711], [757, 711], [757, 727], [719, 727]], '(mm)', 0.8036057401622272)
([[769, 711], [807, 711], [807, 727], [769, 727]], '(mm)', 0.9989970922470093)
([[815, 711], [879, 711], [879, 727], [815, 727]], 'Quadrant', 0.8622102239886623)
([[453, 727], [489, 727], [489, 741], [453, 741]], '(mm)', 0.9924454092979431)
([[503, 727], [565, 727], [565, 741], [503, 741]], 'WI (mm)', 0.7676227538381624)
([[74, 746], [172, 746], [172, 762], [74, 762]], 'CD40192BNSR', 0.9991243569694064)
([[229, 749], [251, 749], [251, 763], [229, 763]], 'SO', 0.6288756878957342)
([[293, 747], [315, 747], [315, 763], [293, 763]], 'NS', 0.9976763085484702)
([[389, 749], [425, 749], [425, 763], [389, 763]], '2000', 0.999133825302124)
([[451, 749], [489, 749], [489, 763], [451, 763]], '330.0', 0.9975234746438764)
([[519, 749], [549, 749], [549, 763], [519, 763]], '16.4', 0.9038805773204304)
([[579, 749], [603, 749], [603, 763], [579, 763]], '8.2', 0.9994752927169485)
([[625, 747], [655, 747], [655, 763], [625, 763]], '10.5', 0.958955619982524)
([[677, 749], [701, 749], [701, 763], [677, 763]], '2.5', 0.9993891985480049)
([[723, 749], [753, 749], [753, 763], [723, 763]], '12.0', 0.9999243021011353)
([[773, 749], [803, 749], [803, 763], [773, 763]], '16.0', 0.9998359680175781)
([[75, 771], [173, 771], [173, 787], [75, 787]], 'CD40193BNSR', 0.9757049564359923)
([[229, 771], [251, 771], [251, 787], [229, 787]], 'SO', 0.43406229753678177)
([[293, 771], [315, 771], [315, 787], [293, 787]], 'NS', 0.9958551861943805)
([[343, 769], [365, 769], [365, 787], [343, 787]], '16', 0.9999985670074514)
([[389, 771], [425, 771], [425, 787], [389, 787]], '2000', 0.9932358860969543)
([[451, 771], [491, 771], [491, 787], [451, 787]], '330.0', 0.9315210972130422)
([[519, 771], [549, 771], [549, 787], [519, 787]], '16.4', 0.8763715137176155)
([[579, 771], [603, 771], [603, 787], [579, 787]], '8.2', 0.9993097120080295)
([[625, 771], [655, 771], [655, 787], [625, 787]], '10.5', 0.9990535378456116)
([[677, 771], [701, 771], [701, 787], [677, 787]], '2.5', 0.9995574650566987)
([[723, 771], [755, 771], [755, 787], [723, 787]], '12.0', 0.9997783303260803)
([[771, 771], [803, 771], [803, 787], [771, 787]], '16.0', 0.9996285438537598)
([[73, 793], [175, 793], [175, 809], [73, 809]], 'CD40193BPWR', 0.7635567491218438)
([[213, 791], [265, 791], [265, 809], [213, 809]], 'TSSOP', 0.9993041963137763)
([[293, 795], [317, 795], [317, 809], [293, 809]], 'PW', 0.9953903140902491)
([[389, 793], [425, 793], [425, 809], [389, 809]], '2000', 0.9965981245040894)
([[451, 793], [491, 793], [491, 809], [451, 809]], '330.0', 0.9999706783410108)
([[519, 793], [549, 793], [549, 809], [519, 809]], '12.4', 0.7921676598867475)
([[579, 795], [603, 795], [603, 809], [579, 809]], '6.9', 0.9979926986551102)
([[627, 793], [653, 793], [653, 811], [627, 811]], '5.6', 0.9427584567925367)
([[677, 793], [701, 793], [701, 809], [677, 809]], '1.6', 0.9420010899908803)
([[727, 795], [751, 795], [751, 809], [727, 809]], '8.0', 0.9992801198328968)
([[773, 793], [803, 793], [803, 809], [773, 809]], '12.0', 0.7524788050885077)

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