import datetime
from typing import Set, Sequence
from ..base import Base
from ..types.detection import Detection
from ..types.hypothesis import Hypothesis
from ..types.track import Track
[docs]
class Hypothesiser(Base):
"""Hypothesiser base class
Given a track and set of detections, generate hypothesis of association.
"""
[docs]
def hypothesise(self, track: Track, detections: Set[Detection], timestamp: datetime.datetime,
**kwargs) -> Sequence[Hypothesis]:
"""Hypothesise track and detection association
Parameters
----------
track : Track
Track which hypotheses will be generated for.
detections : set of :class:`~.Detection`
Detections used to generate hypotheses.
timestamp : datetime.datetime
A timestamp used when evaluating the state and measurement
predictions. Note that if a given detection has a non empty
timestamp, then prediction will be performed according to
the timestamp of the detection.
Returns
-------
: sequence of :class:`~.Hypothesis`
Ordered sequence of "best" to "worse" hypothesis.
"""
raise NotImplementedError