[
  {
    "image_filename": "323_jpg.rf.54c54307b774bb43e203b3a9fd82c63c.jpg",
    "boxes": [],
    "labels": [],
    "caption": "detect void ; crack",
    "source": "p1v1"
  },
  {
    "image_filename": "178_jpg.rf.963c264dff16ef962521965397ca31b0.jpg",
    "boxes": [],
    "labels": [],
    "caption": "detect void ; crack",
    "source": "p1v1"
  },
  {
    "image_filename": "51_jpg.rf.5b8bdd741254d581f6f258f779448f4e.jpg",
    "boxes": [],
    "labels": [],
    "caption": "detect void ; crack",
    "source": "p1v1"
  }
]