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README.md
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license: apache-2.0
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---
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license: apache-2.0
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task_categories:
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- object-detection
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- image-classification
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tags:
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- military
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- aircraft
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- aerospace
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- yolo
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- defense
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size_categories:
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- 10K-100K
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---
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# Military Aircraft Detection & Classification Dataset (87 Classes)
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## Overview
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This dataset is a professionally prepared resource for training high-performance object detection models like **YOLO** and classification models like **EfficientNet-B4**. It features a balanced distribution across **87 distinct military aircraft classes**, specifically refined to eliminate ultra-rare samples and prevent model bias.
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## Key Technical Specifications
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* **Total Images**: 25,894.
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* **Resolution**: Uniform **640x640 pixels**.
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* **Annotation Format**: **YOLO-Ready** (.txt) with normalized coordinates.
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* **Negative Samples**: Included **10% background-only images** (2,353 images) to significantly reduce false positives in empty skies and different commercial aircraft.
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## Understanding the Annotation Format
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Each image has a matching `.txt` file containing the detection labels.
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### Positive Sample Example
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A file named `su57_01.txt` containing: `68 0.475000 0.496875 0.415625 0.859375`
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* **68**: **Class ID**. Matches **Su57** in our 87-class table.
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* **0.475000**: **X-Center**. Horizontal center at 47.5% of image width.
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* **0.496875**: **Y-Center**. Vertical center at 49.6% of image height.
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* **0.415625**: **Width**. Bounding box spans 41.5% of image width.
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* **0.859375**: **Height**. Bounding box spans 85.9% of image height.
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### Negative Sample (Background) Example
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10% of the dataset consists of background images to prevent "ghost" detections.
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* **File**: `sky_bg_01.txt`
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* **Content**: *Empty* (0 bytes)
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* **Purpose**: Teaches the model that no aircraft are present in this specific image.
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## Final Class ID Table (87 Classes)
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| ID | Class | ID | Class | ID | Class | ID | Class |
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|:---|:---|:---|:---|:---|:---|:---|:---|
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| 0 | A10 | 22 | CL415 | 44 | JF17 | 66 | Su34 |
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| 1 | A400M | 23 | E2 | 45 | JH7 | 67 | Su47 |
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| 2 | AG600 | 24 | E7 | 46 | KAAN | **68** | **Su57** |
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| 3 | AH64 | 25 | EF2000 | 47 | KC135 | 69 | TB001 |
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| 4 | AKINCI | 26 | EMB314 | 48 | KF21 | 70 | TB2 |
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| 5 | AV8B | 27 | F117 | 49 | KJ600 | 71 | Tejas |
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| 6 | An124 | 28 | F14 | 50 | Ka27 | 72 | Tornado |
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| 7 | An22 | 29 | F15 | 51 | Ka52 | 73 | Tu160 |
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| 8 | An225 | 30 | F16 | 52 | MQ9 | 74 | Tu22M |
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| 9 | An72 | 31 | F18 | 53 | Mi24 | 75 | Tu95 |
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| 10 | B1 | 32 | F2 | 54 | Mi26 | 76 | U2 |
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| 11 | B2 | 33 | F22 | 55 | Mi28 | 77 | UH60 |
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| 12 | B52 | 34 | F35 | 56 | Mi8 | 78 | US2 |
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| 13 | Be200 | 35 | F4 | 57 | Mig29 | 79 | V22 |
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| 14 | C1 | 36 | FCK1 | 58 | Mig31 | 80 | Vulcan |
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| 15 | C130 | 37 | H6 | 59 | Mirage2000 | 81 | WZ7 |
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| 16 | C17 | 38 | Il76 | 60 | P3 | 82 | X32 |
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| 17 | C2 | 39 | J10 | 61 | RQ4 | 83 | XB70 |
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| 18 | C390 | 40 | J20 | 62 | Rafale | 84 | Y20 |
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| 19 | C5 | 41 | J35 | 63 | SR71 | 85 | YF23 |
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| 20 | CH47 | 42 | J36 | 64 | Su24 | 86 | Z10 |
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| 21 | CH53 | 43 | JAS39 | 65 | Su25 | 87 | Z19 |
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