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src/components/MultiSourceCaptioningView.tsx

@@ -141,35 +141,6 @@ function postprocessYoloOutput(output: ort.Tensor) {
   return results;
 }
 
-// 2. Add a function to crop a detection from a video frame
-function cropBoxFromFrame(video: HTMLVideoElement, bbox: number[]) {
-  const [x1, y1, x2, y2] = bbox;
-  const width = x2 - x1;
-  const height = y2 - y1;
-  const canvas = document.createElement('canvas');
-  canvas.width = width;
-  canvas.height = height;
-  const ctx = canvas.getContext('2d');
-  if (!ctx) throw new Error('Could not get 2D context for cropping');
-  ctx.drawImage(video, x1, y1, width, height, 0, 0, width, height);
-  return new Promise<Blob>(resolve => canvas.toBlob(blob => resolve(blob!), 'image/jpeg'));
-}
-
-// Helper: compute IOU between two boxes [x1,y1,x2,y2]
-function iou(boxA: number[], boxB: number[]) {
-  const [ax1, ay1, ax2, ay2] = boxA;
-  const [bx1, by1, bx2, by2] = boxB;
-  const interX1 = Math.max(ax1, bx1);
-  const interY1 = Math.max(ay1, by1);
-  const interX2 = Math.min(ax2, bx2);
-  const interY2 = Math.min(ay2, by2);
-  const interArea = Math.max(0, interX2 - interX1) * Math.max(0, interY2 - interY1);
-  const areaA = (ax2 - ax1) * (ay2 - ay1);
-  const areaB = (bx2 - bx1) * (by2 - by1);
-  const unionArea = areaA + areaB - interArea;
-  return unionArea > 0 ? interArea / unionArea : 0;
-}
-
 // Helper type guard for annotation
 function hasAnnotation(obj: any): obj is { annotation: string } {
   return typeof obj === 'object' && obj !== null && 'annotation' in obj && typeof obj.annotation === 'string';
@@ -200,8 +171,6 @@ export default function MultiSourceCaptioningView() {
   const boxHistoryRef = useRef<any[]>([]);
   // Add a ref to store the latest YOLOv8 results (with optional FastVLM annotation)
   const lastYoloBoxesRef = React.useRef<any[]>([]);
-  // Add a ref to store annotation history for persistence
-  const annotationHistoryRef = React.useRef<any[]>([]);
   const { isLoaded, isLoading, error: modelError, runInference } = useVLMContext();
 
   // Remove videoProcessingRef and exampleProcessingRef