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hermitkk
/
omr-checkbox-classifier

Image Classification
ONNX
PyTorch
omr
checkbox-detection
plom
Model card Files
xet
 Community
hermitkk commited on
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Files changed (17) hide show
  1. config/config.yaml +96 -0
  2. data/raw/template/choice4box.pdf +0 -0
  3. data/raw/template/exam_math_quiz.pdf +0 -0
  4. data/raw/template/exam_with_mcq.pdf +0 -0
  5. data/raw/template/idBox4.pdf +0 -0
  6. data/raw/template/template_2choice.pdf +0 -0
  7. data/raw/template/template_4choice.pdf +0 -0
  8. data/raw/template/template_4choice_assembled.pdf +0 -0
  9. data/raw/template/template_6choice.pdf +0 -0
  10. data/raw/template/template_mixed.pdf +0 -0
  11. data/template_map/default_template_map.json +145 -0
  12. data/template_map/template_map_2choice.json +77 -0
  13. data/template_map/template_map_4choice.json +145 -0
  14. data/template_map/template_map_6choice.json +213 -0
  15. data/template_map/template_map_assembled_4choice.json +142 -0
  16. data/template_map/template_map_math_quiz.json +230 -0
  17. data/template_map/template_map_mixed.json +250 -0
config/config.yaml ADDED
@@ -0,0 +1,96 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ seed: 42
2
+
3
+ data:
4
+ template: data/raw/template/template_4choice.pdf
5
+ template_map: data/template_map/template_map_4choice.json
6
+ train_manifest: data/synthetic/train.jsonl
7
+ val_manifest: data/synthetic/val.jsonl
8
+
9
+ # Named template variants — each defines the source PDF, output template map,
10
+ # and the answer choices printed on that sheet variant.
11
+ # Select a variant at runtime with --variant <name>.
12
+ templates:
13
+ 2choice:
14
+ template: data/raw/template/template_2choice.pdf
15
+ template_map: data/template_map/template_map_2choice.json
16
+ choices: ["A", "B"]
17
+ 4choice:
18
+ template: data/raw/template/template_4choice.pdf
19
+ template_map: data/template_map/template_map_4choice.json
20
+ choices: ["A", "B", "C", "D"]
21
+ 6choice:
22
+ template: data/raw/template/template_6choice.pdf
23
+ template_map: data/template_map/template_map_6choice.json
24
+ choices: ["A", "B", "C", "D", "E", "F"]
25
+ mixed:
26
+ template: data/raw/template/template_mixed.pdf
27
+ template_map: data/template_map/template_map_mixed.json
28
+ # no valid_counts → accept any row length, labels assigned A-Z (up to 26 choices)
29
+ assembled_4choice:
30
+ template: data/raw/template/template_4choice_assembled.pdf
31
+ template_map: data/template_map/template_map_assembled_4choice.json
32
+ choices: ["A", "B", "C", "D"]
33
+ math_quiz:
34
+ template: data/raw/template/exam_math_quiz.pdf
35
+ template_map: data/template_map/template_map_math_quiz.json
36
+ choices: ["A", "B", "C", "D"]
37
+
38
+ preprocess:
39
+ dpi: 300
40
+ page: 1
41
+ poppler_path: null
42
+ deskew: true
43
+ max_abs_deskew_angle: 8.0
44
+ adaptive_block_size: 31
45
+ adaptive_c: 15
46
+ orb_features: 5000
47
+ min_match_count: 20
48
+ orb_keep_ratio: 0.25
49
+
50
+ detector:
51
+ choices: ["A", "B", "C", "D"]
52
+ row_merge_px: 18
53
+ min_area_ratio: 0.0005
54
+ max_area_ratio: 0.005
55
+ aspect_ratio_tol: 0.35
56
+ min_contour_fill_ratio: 0.10
57
+ max_contour_fill_ratio: 0.99
58
+ nms_iou: 0.30
59
+ match_distance_px: 25
60
+ pad_ratio: 0.35
61
+
62
+ model:
63
+ name: small_cnn # tiny_cnn | small_cnn | mobilenetv2
64
+ in_channels: 1
65
+ img_size: 64
66
+ mean: 0.5
67
+ std: 0.5
68
+ dropout: 0.20
69
+ pretrained: false
70
+ mobilenet_width_mult: 0.5
71
+
72
+ train:
73
+ batch_size: 128
74
+ num_workers: 4
75
+ epochs: 20
76
+ lr: 0.001
77
+ weight_decay: 0.0001
78
+ amp: true
79
+ early_patience: 5
80
+ val_ratio: 0.2
81
+ pos_weight: null
82
+ save_dir: outputs/checkpoints
83
+
84
+ infer:
85
+ batch_size: 256
86
+ threshold: 0.50
87
+ uncertain_margin: 0.10
88
+ min_confidence: 0.55
89
+ fill_ratio_low: 0.04 # CNN says filled but crop is nearly blank → flag uncertain
90
+ fill_ratio_high: 0.25 # CNN says empty but crop is heavily marked → flag uncertain
91
+
92
+ export:
93
+ after_train: true
94
+ onnx_opset: 17
95
+ torchscript_path: outputs/exports/omr_model.ts
96
+ onnx_path: outputs/exports/omr_model.onnx
data/raw/template/choice4box.pdf ADDED
Binary file (9.99 kB). View file
 
data/raw/template/exam_math_quiz.pdf ADDED
Binary file (43.2 kB). View file
 
data/raw/template/exam_with_mcq.pdf ADDED
Binary file (69.6 kB). View file
 
data/raw/template/idBox4.pdf ADDED
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data/raw/template/template_2choice.pdf ADDED
Binary file (24.1 kB). View file
 
data/raw/template/template_4choice.pdf ADDED
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data/raw/template/template_4choice_assembled.pdf ADDED
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data/raw/template/template_6choice.pdf ADDED
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data/raw/template/template_mixed.pdf ADDED
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