| # RefCOCO Non-Person Grounding Subset: Stage 1 | |
| - Selected metadata records: 6,042 | |
| - Successfully downloaded images: 6,042 | |
| - Image download failures: 0 | |
| - Counting rule: COCO non-person, non-crowd annotations with width and height >= 16 px and area >= max(512 px^2, 0.1% of image area). | |
| - `instances` includes all non-person COCO annotations; `eligible_for_count` identifies the stricter counted instances. | |
| - Layout hints are geometric, annotation-derived prelabels only; visual-language verification is intentionally deferred to the Qwen stage. | |
| ## Reference Inputs | |
| - refcoco: 142,210 source reference expressions | |
| - refcoco+: 141,564 source reference expressions | |
| - refcocog: 95,010 source reference expressions | |
| ## Non-Person Instance Count Distribution | |
| | Count | Images | | |
| |---:|---:| | |
| | 4 | 733 | | |
| | 5 | 693 | | |
| | 6 | 703 | | |
| | 7 | 640 | | |
| | 8 | 672 | | |
| | 9 | 530 | | |
| | 10 | 416 | | |
| | 11 | 376 | | |
| | 12 | 256 | | |
| | 13 | 206 | | |
| | 14 | 167 | | |
| | 15 | 132 | | |
| | 16 | 106 | | |
| | 17 | 96 | | |
| | 18 | 70 | | |
| | 19 | 57 | | |
| | 20 | 39 | | |
| | 21 | 42 | | |
| | 22 | 25 | | |
| | 23 | 20 | | |
| | 24 | 11 | | |
| | 25 | 13 | | |
| | 26 | 7 | | |
| | 27 | 8 | | |
| | 28 | 9 | | |
| | 29 | 6 | | |
| | 30 | 2 | | |
| | 31 | 2 | | |
| | 32 | 2 | | |
| | 33 | 1 | | |
| | 37 | 1 | | |
| | 39 | 1 | | |
| ## Category Distribution | |
| | Category | Counted instances | | |
| |---|---:| | |
| | chair | 5,964 | | |
| | car | 3,131 | | |
| | cup | 3,069 | | |
| | bowl | 2,715 | | |
| | dining table | 2,711 | | |
| | bottle | 2,205 | | |
| | wine glass | 1,670 | | |
| | broccoli | 1,361 | | |
| | banana | 1,319 | | |
| | book | 1,168 | | |
| | umbrella | 1,137 | | |
| | potted plant | 1,093 | | |
| | carrot | 1,086 | | |
| | orange | 1,006 | | |
| | cake | 980 | | |
| | pizza | 975 | | |
| | motorcycle | 947 | | |
| | handbag | 898 | | |
| | truck | 846 | | |
| | apple | 830 | | |
| | donut | 820 | | |
| | suitcase | 754 | | |
| | cow | 751 | | |
| | elephant | 692 | | |
| | sandwich | 677 | | |
| | bicycle | 650 | | |
| | teddy bear | 641 | | |
| | sheep | 639 | | |
| | vase | 632 | | |
| | boat | 609 | | |
| | bench | 607 | | |
| | zebra | 597 | | |
| | backpack | 586 | | |
| | horse | 583 | | |
| | laptop | 556 | | |
| | knife | 550 | | |
| | bus | 528 | | |
| | fork | 502 | | |
| | giraffe | 463 | | |
| | couch | 450 | | |
| | spoon | 447 | | |
| | tv | 422 | | |
| | hot dog | 354 | | |
| | bird | 300 | | |
| | airplane | 300 | | |
| | tennis racket | 298 | | |
| | skateboard | 254 | | |
| | traffic light | 251 | | |
| | dog | 240 | | |
| | tie | 215 | | |
| | cell phone | 207 | | |
| | skis | 194 | | |
| | surfboard | 186 | | |
| | train | 175 | | |
| | refrigerator | 172 | | |
| | keyboard | 169 | | |
| | toilet | 169 | | |
| | oven | 165 | | |
| | kite | 151 | | |
| | sink | 147 | | |
| | remote | 143 | | |
| | cat | 138 | | |
| | baseball bat | 136 | | |
| | bed | 115 | | |
| | snowboard | 114 | | |
| | clock | 105 | | |
| | baseball glove | 94 | | |
| | mouse | 79 | | |
| | toothbrush | 78 | | |
| | microwave | 76 | | |
| | sports ball | 69 | | |
| | parking meter | 66 | | |
| | scissors | 64 | | |
| | fire hydrant | 57 | | |
| | stop sign | 41 | | |
| | frisbee | 38 | | |
| | bear | 16 | | |
| | toaster | 8 | | |
| | hair drier | 5 | | |
| ## Source Dataset Coverage | |
| | Source | Images | | |
| |---|---:| | |
| | refcoco | 4,545 | | |
| | refcoco+ | 4,544 | | |
| | refcocog | 4,021 | | |
| ## Layout Hints | |
| | Hint | Images | | |
| |---|---:| | |
| | grid | 1,510 | | |
| | mixed | 2,103 | | |
| | multi_row | 1,742 | | |
| | single_row | 687 | | |