{
 "frame": "A2 3312x2480",
 "boxed_objects": [
  {
   "name": "C1 silver sedan",
   "kind": "car",
   "heading_deg_ground": 164.4,
   "ground_centre_m": [
    -10.15,
    8.7
   ],
   "note": "Main road, kerb lane on the right-hand side of the frame, driving AWAY toward the mountains (north-west). Scaled up 10 % in A2 to match its neighbours.",
   "box_img_corners_px": [
    [
     1730.0,
     1396.4
    ],
    [
     1644.2,
     1354.6
    ],
    [
     1859.8,
     1354.6
    ],
    [
     1945.6,
     1396.4
    ],
    [
     1730.0,
     1268.8
    ],
    [
     1644.2,
     1227.0
    ],
    [
     1859.8,
     1227.0
    ],
    [
     1945.6,
     1268.8
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "C2 silver sedan",
   "kind": "car",
   "heading_deg_ground": 52.0,
   "ground_centre_m": [
    -20.1,
    8.89
   ],
   "note": "Main road, far section, driving TOWARD the junction (south-east). A2: moved one lane to the left of the frame, into the south-east-bound half of the road (right-hand traffic) and scaled up 12 %; it will stop at the far side of the crossing while people cross.",
   "box_img_corners_px": [
    [
     1073.0,
     1259.5
    ],
    [
     1088.6,
     1219.4
    ],
    [
     1242.6,
     1219.4
    ],
    [
     1227.0,
     1259.5
    ],
    [
     1073.0,
     1183.6
    ],
    [
     1088.6,
     1143.5
    ],
    [
     1242.6,
     1143.5
    ],
    [
     1227.0,
     1183.6
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "C3 silver hatchback",
   "kind": "car",
   "heading_deg_ground": 216.4,
   "ground_centre_m": [
    -7.34,
    -6.59
   ],
   "note": "Left side street, far lane, driving WEST away from the junction toward the left frame edge. Scaled up 15 % in A2.",
   "box_img_corners_px": [
    [
     433.5,
     1831.3
    ],
    [
     28.7,
     1748.5
    ],
    [
     254.1,
     1688.7
    ],
    [
     658.9,
     1771.5
    ],
    [
     433.5,
     1641.6
    ],
    [
     28.7,
     1558.8
    ],
    [
     254.1,
     1499.0
    ],
    [
     658.9,
     1581.8
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "C4 small silver sedan",
   "kind": "car",
   "heading_deg_ground": 259.6,
   "ground_centre_m": [
    -28.25,
    10.76
   ],
   "note": "Far cross street, driving LEFT. Scaled up 45 % in A2 (was toy-sized).",
   "box_img_corners_px": [
    [
     1226.2,
     1120.0
    ],
    [
     1029.0,
     1120.0
    ],
    [
     1043.4,
     1105.5
    ],
    [
     1240.6,
     1105.5
    ],
    [
     1226.2,
     1062.0
    ],
    [
     1029.0,
     1062.0
    ],
    [
     1043.4,
     1047.5
    ],
    [
     1240.6,
     1047.5
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "C5 small silver sedan",
   "kind": "car",
   "heading_deg_ground": 76.1,
   "ground_centre_m": [
    -24.67,
    22.05
   ],
   "note": "Far cross street, driving RIGHT. Scaled up 40 % in A2.",
   "box_img_corners_px": [
    [
     1634.4,
     1135.6
    ],
    [
     1858.4,
     1135.6
    ],
    [
     1872.4,
     1118.8
    ],
    [
     1648.4,
     1118.8
    ],
    [
     1634.4,
     1065.6
    ],
    [
     1858.4,
     1065.6
    ],
    [
     1872.4,
     1048.8
    ],
    [
     1648.4,
     1048.8
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "B1 cyclist",
   "kind": "bike",
   "heading_deg_ground": 160.1,
   "ground_centre_m": [
    -2.86,
    9.51
   ],
   "note": "A2: moved off the sidewalk onto the road: main road, right-hand edge of the north-west-bound kerb lane, just inside the solid edge line, behind C1; riding toward the mountains.",
   "box_img_corners_px": [
    [
     2508.0,
     1584.0
    ],
    [
     2424.0,
     1544.0
    ],
    [
     2358.0,
     1540.0
    ],
    [
     2442.0,
     1580.0
    ],
    [
     2508.0,
     1322.0
    ],
    [
     2424.0,
     1282.0
    ],
    [
     2358.0,
     1278.0
    ],
    [
     2442.0,
     1318.0
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "P1 pedestrian",
   "kind": "ped",
   "heading_deg_ground": -0.0,
   "ground_centre_m": [
    -21.95,
    2.7
   ],
   "note": "Far-left sidewalk (north-west corner), walking toward the junction.",
   "box_img_corners_px": [
    [
     851.2,
     1210.3
    ],
    [
     821.2,
     1211.9
    ],
    [
     805.8,
     1205.0
    ],
    [
     835.6,
     1203.5
    ],
    [
     851.2,
     1099.7
    ],
    [
     821.2,
     1100.4
    ],
    [
     805.8,
     1094.7
    ],
    [
     835.6,
     1094.1
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "P2 pedestrian",
   "kind": "ped",
   "heading_deg_ground": 180.0,
   "ground_centre_m": [
    -12.97,
    -1.94
   ],
   "note": "Left corner plaza, walking away from camera toward the mountains.",
   "box_img_corners_px": [
    [
     719.9,
     1418.8
    ],
    [
     760.7,
     1414.3
    ],
    [
     781.1,
     1427.0
    ],
    [
     739.9,
     1431.7
    ],
    [
     719.9,
     1224.6
    ],
    [
     760.7,
     1222.3
    ],
    [
     781.1,
     1232.2
    ],
    [
     739.9,
     1234.7
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "P3 pedestrian",
   "kind": "ped",
   "heading_deg_ground": 180.0,
   "ground_centre_m": [
    -11.04,
    18.72
   ],
   "note": "Right-hand (east) sidewalk, walking away from camera with P4 toward the mountains.",
   "box_img_corners_px": [
    [
     2214.7,
     1290.3
    ],
    [
     2238.5,
     1287.2
    ],
    [
     2280.2,
     1297.7
    ],
    [
     2256.6,
     1300.9
    ],
    [
     2214.7,
     1139.4
    ],
    [
     2238.5,
     1138.1
    ],
    [
     2280.2,
     1146.4
    ],
    [
     2256.6,
     1147.9
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "P4 pedestrian",
   "kind": "ped",
   "heading_deg_ground": 180.0,
   "ground_centre_m": [
    -10.68,
    19.63
   ],
   "note": "Right-hand sidewalk, walking with P3.",
   "box_img_corners_px": [
    [
     2279.6,
     1291.6
    ],
    [
     2297.2,
     1289.2
    ],
    [
     2330.4,
     1297.4
    ],
    [
     2312.9,
     1299.9
    ],
    [
     2279.6,
     1155.3
    ],
    [
     2297.2,
     1154.2
    ],
    [
     2330.4,
     1160.8
    ],
    [
     2312.9,
     1162.1
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "P5 pedestrian with backpack",
   "kind": "ped",
   "heading_deg_ground": 0.0,
   "ground_centre_m": [
    -0.19,
    20.06
   ],
   "note": "Right-hand sidewalk by the bench, walking toward the camera side / lower right, toward the crossing landing.",
   "box_img_corners_px": [
    [
     3182.2,
     1496.7
    ],
    [
     3163.4,
     1504.9
    ],
    [
     3072.8,
     1482.6
    ],
    [
     3092.7,
     1474.9
    ],
    [
     3182.2,
     1299.4
    ],
    [
     3163.4,
     1304.3
    ],
    [
     3072.8,
     1286.5
    ],
    [
     3092.7,
     1282.1
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "H1 adult on the crossing",
   "kind": "ped",
   "heading_deg_ground": -101.4,
   "ground_centre_m": [
    1.08,
    5.67
   ],
   "note": "Zebra crossing, mid-road, walking toward the near corner plaza (and the rover).",
   "box_img_corners_px": [
    [
     2664.7,
     1835.8
    ],
    [
     2602.6,
     1806.1
    ],
    [
     2664.1,
     1792.5
    ],
    [
     2726.4,
     1821.2
    ],
    [
     2664.7,
     1572.3
    ],
    [
     2602.6,
     1548.7
    ],
    [
     2664.1,
     1540.2
    ],
    [
     2726.4,
     1563.1
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  },
  {
   "name": "H2 child on the crossing",
   "kind": "ped",
   "heading_deg_ground": -101.4,
   "ground_centre_m": [
    1.63,
    6.26
   ],
   "note": "Zebra crossing, holding H1's hand, walking with H1.",
   "box_img_corners_px": [
    [
     2784.1,
     1837.7
    ],
    [
     2743.3,
     1819.1
    ],
    [
     2777.8,
     1810.9
    ],
    [
     2818.7,
     1829.2
    ],
    [
     2784.1,
     1657.4
    ],
    [
     2743.3,
     1641.4
    ],
    [
     2777.8,
     1635.3
    ],
    [
     2818.7,
     1651.0
    ]
   ],
   "corner_order": "0-3 bottom, 4-7 top (same order), image pixels in the 3312x2480 frame"
  }
 ],
 "heroes_without_boxes": [
  {
   "name": "Robotaxi",
   "note": "unchanged from A"
  },
  {
   "name": "Rover R1 (near corner plaza)",
   "note": "unchanged from A"
  },
  {
   "name": "Rover R2 (left corner plaza)",
   "img_bbox_px": [
    506,
    1308,
    668,
    1483
   ],
   "note": "new in A2; faces up-right toward the corner, stopped while pedestrian P2 passes in front of it; ribbon and lidar rings, no box"
  }
 ]
}