sun3d_utils.py 文件源码

def __init__(self, frame=None): 
        """
        Load annotation from json
        """
        self.annotations_ = []

        # Retrieve polygons
        try: 
            polygons = frame['polygon']
        except: 
            return

        # For each polygon
        for poly in polygons: 

            # Get coordinates
            xy = np.vstack([np.float32(poly['x']), 
                            np.float32(poly['y'])]).T

            # Object ID (from local annotation file)
            object_id = poly['object']
            self.add(poly['object'], xy)