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#!/usr/bin/env python
"""Matching algorithm based on fixation's focus point
"""
__author__ = "Théo de la Hogue"
__credits__ = []
__copyright__ = "Copyright 2023, Ecole Nationale de l'Aviation Civile (ENAC)"
__license__ = "BSD"
from typing import TypeVar, Tuple
from dataclasses import dataclass, field
import math
from argaze import GazeFeatures
import numpy
import cv2
GazeMovementType = TypeVar('GazeMovement', bound="GazeMovement")
# Type definition for type annotation convenience
@dataclass
class AOIMatcher(GazeFeatures.AOIMatcher):
def __post_init__(self):
"""Init looked aoi data."""
self.__looked_aoi = None
def match(self, aoi_scene, gaze_movement, exclude=[]) -> str:
"""Returns AOI containing fixation focus point."""
if GazeFeatures.is_fixation(gaze_movement):
for name, aoi in aoi_scene.items():
if name not in exclude and aoi.contains_point(gaze_movement.focus):
# Update looked aoi
self.__looked_aoi = name
return self.__looked_aoi
elif GazeFeatures.is_saccade(gaze_movement):
self.__post_init__()
@property
def looked_aoi(self) -> str:
"""Get most likely looked aoi name for current fixation (e.g. the aoi with the highest coverage mean value)"""
return self.__looked_aoi
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