Event Debug
ALPR Debug
Selected Media
This is the event media currently shown elsewhere in the UI.
ALPR Attempts
Each recorded input and the corresponding service outcome for this event.
event_snapshot_vehicle_bbox
Snapshot
Input
Full Frame
Count 0
Unfiltered 2
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 17.29,
"rejected_count": 1,
"rejected_detections": [
{
"bbox": [
619.0,
551.0,
735.0,
596.0
],
"country_match": "United Kingdom",
"detection_confidence": 0.8754855990409851,
"filename": "event_snapshot_vehicle_bbox_track.jpg",
"frame_index": 0,
"ocr_char_confidences": [
0.8955813646316528,
0.36254146695137024,
0.4307008385658264,
0.6137639880180359,
0.4469567835330963,
0.24175554513931272,
0.6944480538368225,
0.9985187649726868,
0.9995587468147278,
0.9996559619903564
],
"ocr_confidence": 0.6683481514453888,
"ocr_min_char_confidence": 0.24175554513931272,
"plate": "S587AE",
"plate_validation": {
"format": null,
"input": "S587AE",
"normalised": "S587AE",
"reasons": [
"no_uk_format_match"
],
"valid": false
},
"polygon": null,
"quality": {
"area_score": 0.4886,
"bbox": {
"area_ratio": 0.006108,
"height_px": 45,
"min_margin_px": 237,
"required_margin_px": 8,
"width_px": 116
},
"country_score": 1.0,
"edge_penalty": 0.0,
"format_score": 0.0,
"sharpness_score": 0.6846
},
"quality_score": 0.6369,
"raw": {
"detection": {
"bounding_box": {
"x1": 619,
"x2": 735,
"y1": 551,
"y2": 596
},
"confidence": 0.8754855990409851,
"label": "License Plate"
},
"ocr": {
"confidence": [
0.8955813646316528,
0.36254146695137024,
0.4307008385658264,
0.6137639880180359,
0.4469567835330963,
0.24175554513931272,
0.6944480538368225,
0.9985187649726868,
0.9995587468147278,
0.9996559619903564
],
"region": "United Kingdom",
"region_confidence": 0.6772879362106323,
"text": "S587AE"
}
},
"rejected": true,
"rejection_reasons": [
"no_uk_format_match"
]
}
],
"unfiltered_count": 2
}
event_snapshot_full_frame
Snapshot
Input
Full Frame
Count 0
Unfiltered 1
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 12.84,
"rejected_count": 1,
"rejected_detections": [
{
"bbox": [
1294.0,
615.0,
1405.0,
653.0
],
"country_match": "United Kingdom",
"detection_confidence": 0.7578454613685608,
"filename": "event_snapshot.jpg",
"frame_index": 0,
"ocr_char_confidences": [
0.926895260810852,
0.3203427195549011,
0.30192822217941284,
0.3039515018463135,
0.1916961520910263,
0.24209697544574735,
0.6028182506561279,
0.9980345368385316,
0.9996144771575928,
0.9996101260185242
],
"ocr_confidence": 0.588698822259903,
"ocr_min_char_confidence": 0.1916961520910263,
"plate": "S5N7AP",
"plate_validation": {
"format": null,
"input": "S5N7AP",
"normalised": "S5N7AP",
"reasons": [
"no_uk_format_match"
],
"valid": false
},
"polygon": null,
"quality": {
"area_score": 0.1627,
"bbox": {
"area_ratio": 0.002034,
"height_px": 38,
"min_margin_px": 427,
"required_margin_px": 10,
"width_px": 111
},
"country_score": 1.0,
"edge_penalty": 0.0,
"format_score": 0.0,
"sharpness_score": 0.7091
},
"quality_score": 0.5319,
"raw": {
"detection": {
"bounding_box": {
"x1": 1294,
"x2": 1405,
"y1": 615,
"y2": 653
},
"confidence": 0.7578454613685608,
"label": "License Plate"
},
"ocr": {
"confidence": [
0.926895260810852,
0.3203427195549011,
0.30192822217941284,
0.3039515018463135,
0.1916961520910263,
0.24209697544574735,
0.6028182506561279,
0.9980345368385316,
0.9996144771575928,
0.9996101260185242
],
"region": "United Kingdom",
"region_confidence": 0.7160561680793762,
"text": "S5N7AP"
}
},
"rejected": true,
"rejection_reasons": [
"no_uk_format_match"
]
}
],
"unfiltered_count": 1
}
event_snapshot_plate_bbox
Snapshot
Input
Full Frame
Count 0
Unfiltered 2
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 12.21,
"rejected_count": 1,
"rejected_detections": [
{
"bbox": [
74.0,
38.0,
188.0,
78.0
],
"country_match": "United Kingdom",
"detection_confidence": 0.4098010063171386,
"filename": "event_snapshot_plate_bbox_plate.jpg",
"frame_index": 0,
"ocr_char_confidences": [
0.874792754650116,
0.36576300859451294,
0.401054322719574,
0.3039117157459259,
0.17716526985168457,
0.10354694724082948,
0.5165238976478577,
0.979379415512085,
0.9986503720283508,
0.9986820816993712
],
"ocr_confidence": 0.5719469785690308,
"ocr_min_char_confidence": 0.10354694724082948,
"plate": "S567AE",
"plate_validation": {
"format": null,
"input": "S567AE",
"normalised": "S567AE",
"reasons": [
"no_uk_format_match"
],
"valid": false
},
"polygon": null,
"quality": {
"area_score": 1.0,
"bbox": {
"area_ratio": 0.154289,
"height_px": 40,
"min_margin_px": 37,
"required_margin_px": 8,
"width_px": 114
},
"country_score": 1.0,
"edge_penalty": 0.0,
"format_score": 0.0,
"sharpness_score": 0.7525
},
"quality_score": 0.6071,
"raw": {
"detection": {
"bounding_box": {
"x1": 74,
"x2": 188,
"y1": 38,
"y2": 78
},
"confidence": 0.4098010063171386,
"label": "License Plate"
},
"ocr": {
"confidence": [
0.874792754650116,
0.36576300859451294,
0.401054322719574,
0.3039117157459259,
0.17716526985168457,
0.10354694724082948,
0.5165238976478577,
0.979379415512085,
0.9986503720283508,
0.9986820816993712
],
"region": "United Kingdom",
"region_confidence": 0.5593674182891846,
"text": "S567AE"
}
},
"rejected": true,
"rejection_reasons": [
"no_uk_format_match"
]
}
],
"unfiltered_count": 2
}
recording_snapshot_frame
Frame 1 · -0.50s
Input
Full Frame
Count 0
Unfiltered 1
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 17.12,
"rejected_count": 0,
"rejected_detections": [],
"unfiltered_count": 1
}
recording_snapshot_frame
Frame 2 · -0.21s
Input
Full Frame
Count 0
Unfiltered 1
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 19.27,
"rejected_count": 0,
"rejected_detections": [],
"unfiltered_count": 1
}
recording_snapshot_frame
Frame 3 · 0.07s
Input
Full Frame
Count 0
Unfiltered 0
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 15.14,
"rejected_count": 0,
"rejected_detections": [],
"unfiltered_count": 0
}
recording_snapshot_frame
Frame 4 · 0.36s
Input
Full Frame
Count 0
Unfiltered 0
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 16.39,
"rejected_count": 0,
"rejected_detections": [],
"unfiltered_count": 0
}
recording_snapshot_frame
Frame 5 · 0.64s
Input
Full Frame
Count 0
Unfiltered 0
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 5.92,
"rejected_count": 0,
"rejected_detections": [],
"unfiltered_count": 0
}
recording_snapshot_frame
Frame 6 · 0.93s
Input
Full Frame
Count 0
Unfiltered 1
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 17.34,
"rejected_count": 0,
"rejected_detections": [],
"unfiltered_count": 1
}
recording_snapshot_frame
Frame 7 · 1.21s
Input
Full Frame
Count 0
Unfiltered 1
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 18.57,
"rejected_count": 1,
"rejected_detections": [
{
"bbox": [
760.0,
58.0,
793.0,
83.0
],
"country_match": "United Kingdom",
"detection_confidence": 0.5037035346031189,
"filename": "frame_000007_focus.jpg",
"frame_index": 0,
"ocr_char_confidences": [
0.1307334303855896,
0.6436724066734314,
0.6936792731285095,
0.34205758571624756,
0.1692509949207306,
0.1642299443483353,
0.4980217814445496,
0.9672443866729736,
0.9967467784881592,
0.9981552958488464
],
"ocr_confidence": 0.5603791877627373,
"ocr_min_char_confidence": 0.1307334303855896,
"plate": "B559AV",
"plate_validation": {
"format": null,
"input": "B559AV",
"normalised": "B559AV",
"reasons": [
"no_uk_format_match"
],
"valid": false
},
"polygon": null,
"quality": {
"area_score": 0.0772,
"bbox": {
"area_ratio": 0.000965,
"height_px": 25,
"min_margin_px": 58,
"required_margin_px": 8,
"width_px": 33
},
"country_score": 1.0,
"edge_penalty": 0.0,
"format_score": 0.0,
"sharpness_score": 1.0
},
"quality_score": 0.4928,
"raw": {
"detection": {
"bounding_box": {
"x1": 760,
"x2": 793,
"y1": 58,
"y2": 83
},
"confidence": 0.5037035346031189,
"label": "License Plate"
},
"ocr": {
"confidence": [
0.1307334303855896,
0.6436724066734314,
0.6936792731285095,
0.34205758571624756,
0.1692509949207306,
0.1642299443483353,
0.4980217814445496,
0.9672443866729736,
0.9967467784881592,
0.9981552958488464
],
"region": "United Kingdom",
"region_confidence": 0.1787051111459732,
"text": "B559AV"
}
},
"rejected": true,
"rejection_reasons": [
"no_uk_format_match",
"plate_box_too_narrow"
]
}
],
"unfiltered_count": 1
}
recording_snapshot_frame
Frame 8 · 1.50s
Input
Full Frame
Count 0
Unfiltered 2
No candidate
Service Payload
Sanitized ALPR response for this attempt.
Service Payload
Sanitized ALPR response for this attempt.
{
"annotated": true,
"annotated_image_base64": "\u003comitted\u003e",
"count": 0,
"detections": [],
"filter": {
"accept_short_dateless": false,
"country": "United Kingdom",
"method": "model_country_match_plus_uk_format_validation",
"min_valid_plate_len": 5,
"strict_uk_plate_validation": true
},
"model": {
"detector": "yolo-v9-t-384-license-plate-end2end",
"detector_conf_thresh": 0.4,
"ocr": "cct-s-v2-global-model"
},
"processing_ms": 19.89,
"rejected_count": 1,
"rejected_detections": [
{
"bbox": [
732.0,
64.0,
769.0,
87.0
],
"country_match": "United Kingdom",
"detection_confidence": 0.4724015593528747,
"filename": "frame_000008_focus.jpg",
"frame_index": 0,
"ocr_char_confidences": [
0.4396708309650421,
0.6974988579750061,
0.5939099788665771,
0.46640798449516296,
0.13091638684272766,
0.4660916328430176,
0.18944130837917328,
0.9738616943359376,
0.9978383183479308,
0.9987446069717408
],
"ocr_confidence": 0.5954381600022316,
"ocr_min_char_confidence": 0.13091638684272766,
"plate": "D557EL",
"plate_validation": {
"format": null,
"input": "D557EL",
"normalised": "D557EL",
"reasons": [
"no_uk_format_match"
],
"valid": false
},
"polygon": null,
"quality": {
"area_score": 0.0797,
"bbox": {
"area_ratio": 0.000996,
"height_px": 23,
"min_margin_px": 64,
"required_margin_px": 8,
"width_px": 37
},
"country_score": 1.0,
"edge_penalty": 0.0,
"format_score": 0.0,
"sharpness_score": 1.0
},
"quality_score": 0.4969,
"raw": {
"detection": {
"bounding_box": {
"x1": 732,
"x2": 769,
"y1": 64,
"y2": 87
},
"confidence": 0.4724015593528747,
"label": "License Plate"
},
"ocr": {
"confidence": [
0.4396708309650421,
0.6974988579750061,
0.5939099788665771,
0.46640798449516296,
0.13091638684272766,
0.4660916328430176,
0.18944130837917328,
0.9738616943359376,
0.9978383183479308,
0.9987446069717408
],
"region": "United Kingdom",
"region_confidence": 0.702754020690918,
"text": "D557EL"
}
},
"rejected": true,
"rejection_reasons": [
"no_uk_format_match",
"plate_box_too_narrow"
]
}
],
"unfiltered_count": 2
}