Event Debug

ALPR Debug

Event #373429
Stream road
Status processed_no_match
Strategy frigate_plate_first
Detect —
OCR —

Selected Media

This is the event media currently shown elsewhere in the UI.

Selected event media

ALPR Attempts

Each recorded input and the corresponding service outcome for this event.

event_snapshot_vehicle_bbox

Snapshot

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 1 No candidate

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": 9.05,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 1
}

event_snapshot_full_frame

Snapshot

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 0 No candidate

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": 14.48,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 0
}

event_snapshot_plate_bbox

Snapshot

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 1 No candidate

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": 15.56,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 1
}

recording_snapshot_frame

Frame 1 · -0.50s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 1 No candidate

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": 11.09,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 1
}

recording_snapshot_frame

Frame 2 · -0.21s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 1 No candidate

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": 8.08,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 1
}

recording_snapshot_frame

Frame 3 · 0.07s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 1 No candidate

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": 11.75,
  "rejected_count": 1,
  "rejected_detections": [
    {
      "bbox": [
        363.0,
        43.0,
        401.0,
        57.0
      ],
      "country_match": "United Kingdom",
      "detection_confidence": 0.8246479034423828,
      "filename": "frame_000003_focus.jpg",
      "frame_index": 0,
      "ocr_char_confidences": [
        0.5273482799530029,
        0.6670318841934204,
        0.9565957188606262,
        0.36308878660202026,
        0.4121227562427521,
        0.27134671807289124,
        0.2916578948497772,
        0.8869919180870056,
        0.9955412745475768,
        0.998596489429474
      ],
      "ocr_confidence": 0.6370321720838547,
      "ocr_min_char_confidence": 0.27134671807289124,
      "plate": "SV41W52",
      "plate_validation": {
        "format": null,
        "input": "SV41W52",
        "normalised": "SV41W52",
        "reasons": [
          "no_uk_format_match"
        ],
        "valid": false
      },
      "polygon": null,
      "quality": {
        "area_score": 0.6985,
        "bbox": {
          "area_ratio": 0.008731,
          "height_px": 14,
          "min_margin_px": 43,
          "required_margin_px": 8,
          "width_px": 38
        },
        "country_score": 1.0,
        "edge_penalty": 0.0,
        "format_score": 0.0,
        "sharpness_score": 1.0
      },
      "quality_score": 0.6983,
      "raw": {
        "detection": {
          "bounding_box": {
            "x1": 363,
            "x2": 401,
            "y1": 43,
            "y2": 57
          },
          "confidence": 0.8246479034423828,
          "label": "License Plate"
        },
        "ocr": {
          "confidence": [
            0.5273482799530029,
            0.6670318841934204,
            0.9565957188606262,
            0.36308878660202026,
            0.4121227562427521,
            0.27134671807289124,
            0.2916578948497772,
            0.8869919180870056,
            0.9955412745475768,
            0.998596489429474
          ],
          "region": "United Kingdom",
          "region_confidence": 0.5191066861152649,
          "text": "SV41W52"
        }
      },
      "rejected": true,
      "rejection_reasons": [
        "no_uk_format_match",
        "plate_box_too_narrow"
      ]
    }
  ],
  "unfiltered_count": 1
}

recording_snapshot_frame

Frame 4 · 0.36s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 1 No candidate

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": 16.26,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 1
}

recording_snapshot_frame

Frame 5 · 0.64s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 0 No candidate

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": 7.38,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 0
}

recording_snapshot_frame

Frame 6 · 0.93s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 0 No candidate

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": 15.24,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 0
}

recording_snapshot_frame

Frame 7 · 1.21s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 0 No candidate

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": 5.78,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 0
}

recording_snapshot_frame

Frame 8 · 1.50s

Input ALPR input
Full Frame Full frame
Count 0 Unfiltered 0 No candidate

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": 11.07,
  "rejected_count": 0,
  "rejected_detections": [],
  "unfiltered_count": 0
}