feat: add measured detection review loop

frontend/src/hooks/useDetectionWorkflow.ts

@@ -405,6 +405,7 @@ export function useDetectionWorkflow({
     analysisRunId: string,
     referenceDatasetId: string,
     useCurrentFilters = true,
+    iouThresholdOverride?: number,
   ): Promise<DetectionQaResult | null> => {
     if (!analysisRunId) {
       setDetectionQaError('Select a detection run')
@@ -422,7 +423,7 @@ export function useDetectionWorkflow({
     try {
       const result = await detectionApi.compareWithReference(analysisRunId, {
         reference_dataset_id: referenceDatasetId,
-        iou_threshold: qaIouThreshold,
+        iou_threshold: iouThresholdOverride ?? qaIouThreshold,
         class_name: useCurrentFilters ? detectionClassFilter || null : null,
         min_confidence: useCurrentFilters && detectionMinConfidenceFilter > 0 ? detectionMinConfidenceFilter : null,
       })

frontend/src/hooks/useMapOrthophotoAnalysis.ts

@@ -17,6 +17,8 @@ export type MapOrthophotoAnalysisStage =
   | 'complete'
   | 'failed'
 
+export const MAP_BUILDING_QA_IOU_THRESHOLD = 0.25
+
 interface MapOrthophotoAnalysisOptions {
   selectedProjectId: string | null
   selectedAreaId: string
@@ -27,6 +29,7 @@ interface MapOrthophotoAnalysisOptions {
   compareDetectionRunWithReference: (
     analysisRunId: string,
     referenceDatasetId: string,
+    iouThreshold: number,
   ) => Promise<DetectionQaResult | null>
   onAnalysisReady: () => void
 }
@@ -61,6 +64,12 @@ function formatOrthophotoError(caught: unknown): string {
   return formatError(caught, 'De kaartgestuurde beeldanalyse is mislukt')
 }
 
+function formatQualityPercentage(value: number | null | undefined): string {
+  return typeof value === 'number' && Number.isFinite(value)
+    ? `${(value * 100).toLocaleString('nl-BE', { maximumFractionDigits: 1 })}%`
+    : 'n.v.t.'
+}
+
 export function useMapOrthophotoAnalysis({
   selectedProjectId,
   selectedAreaId,
@@ -75,12 +84,18 @@ export function useMapOrthophotoAnalysis({
   const [status, setStatus] = useState('')
   const [error, setError] = useState<string | null>(null)
   const [lastResult, setLastResult] = useState<OrthophotoAcquisitionResult | null>(null)
+  const [lastQuality, setLastQuality] = useState<DetectionQaResult | null>(null)
+  const [lastDetectionCount, setLastDetectionCount] = useState<number | null>(null)
+  const [lastAnalysisRunId, setLastAnalysisRunId] = useState<string | null>(null)
 
   useEffect(() => {
     setStage('idle')
     setStatus('')
     setError(null)
     setLastResult(null)
+    setLastQuality(null)
+    setLastDetectionCount(null)
+    setLastAnalysisRunId(null)
   }, [selectionBbox?.min_x, selectionBbox?.min_y, selectionBbox?.max_x, selectionBbox?.max_y])
 
   const run = async (bbox: VectorSelectionBBox): Promise<boolean> => {
@@ -91,6 +106,9 @@ export function useMapOrthophotoAnalysis({
     }
     setError(null)
     setLastResult(null)
+    setLastQuality(null)
+    setLastDetectionCount(null)
+    setLastAnalysisRunId(null)
     setStage('acquiring')
     setStatus('1/3 Officieel luchtbeeld voor de rechthoek ophalen...')
     try {
@@ -112,20 +130,27 @@ export function useMapOrthophotoAnalysis({
       if (!detection) {
         throw new Error('De beeldanalyse stopte. Open Beeldanalyse voor de technische oorzaak.')
       }
+      setLastDetectionCount(detection.detection_count)
+      setLastAnalysisRunId(detection.analysis_run_id)
 
       const reference = findBuildingReference(datasets)
       if (reference) {
         setStage('validating')
         setStatus('3/3 Resultaat vergelijken met officiële GRB-gebouwen...')
-        const quality = await compareDetectionRunWithReference(detection.analysis_run_id, reference.id)
+        const quality = await compareDetectionRunWithReference(
+          detection.analysis_run_id,
+          reference.id,
+          MAP_BUILDING_QA_IOU_THRESHOLD,
+        )
+        setLastQuality(quality)
         setStatus(
           quality
-            ? `Analyse klaar: ${detection.detection_count.toLocaleString('nl-BE')} gebouwen herkend en gecontroleerd.`
-            : `Analyse klaar: ${detection.detection_count.toLocaleString('nl-BE')} gebouwen herkend; kwaliteitscontrole kon niet afronden.`,
+            ? `Analyse klaar: ${detection.detection_count.toLocaleString('nl-BE')} kandidaten, ${quality.matches.toLocaleString('nl-BE')} gekoppeld aan GRB. Precision ${formatQualityPercentage(quality.precision)}, recall ${formatQualityPercentage(quality.recall)}.`
+            : `Analyse klaar: ${detection.detection_count.toLocaleString('nl-BE')} kandidaten; kwaliteitscontrole kon niet afronden.`,
         )
       } else {
         setStatus(
-          `Analyse klaar: ${detection.detection_count.toLocaleString('nl-BE')} gebouwen herkend. De GRB-referentielaag ontbreekt voor automatische controle.`,
+          `Analyse klaar: ${detection.detection_count.toLocaleString('nl-BE')} kandidaatvormen. De GRB-referentielaag ontbreekt voor automatische controle.`,
         )
       }
       setStage('complete')
@@ -144,6 +169,9 @@ export function useMapOrthophotoAnalysis({
     status,
     error,
     lastResult,
+    lastQuality,
+    lastDetectionCount,
+    lastAnalysisRunId,
     running: stage === 'acquiring' || stage === 'detecting' || stage === 'validating',
     run,
   }