Python acceleration_features Examples

Example #1

File: combine_features.py Project: smoussa/seahorse-ml

def feature_vector(trip):
    velocity = compute_velocity(trip)
    velocity5 = n_step_diff(trip, n=5)
    acceleration = np.gradient(velocity)
    acceleration5 = np.gradient(velocity5)
    cos_dt = [cos_between(a, np.array([1, 0])) for a in acceleration5]
    angle_dt = [np.arccos(c) for c in cos_dt]
    speed = compute_scalar(velocity)
    corner_features = corners_features(velocity)
    acc_features = acceleration_features(velocity, angle_dt, cos_dt, speed)
    return np.hstack((corner_features, acc_features))

Example #2

File: combine_features.py Project: nagyistge/seahorse-ml

def feature_vector(trip):
    velocity = compute_velocity(trip)
    velocity5 = n_step_diff(trip, n=5)
    acceleration = np.gradient(velocity)
    acceleration5 = np.gradient(velocity5)
    cos_dt = [cos_between(a, np.array([1, 0])) for a in acceleration5]
    angle_dt = [np.arccos(c) for c in cos_dt]
    speed = compute_scalar(velocity)
    corner_features = corners_features(velocity)
    acc_features = acceleration_features(velocity, angle_dt, cos_dt, speed)
    return np.hstack((corner_features, acc_features))

Example #3

File: combine_features2.py Project: smoussa/seahorse-ml

def feature_vector(trip):
    velocity = compute_velocity(trip)
    speed = compute_scalar(velocity)
    corner_features = corners_features(velocity)
    acc_features = acceleration_features(speed)
    return np.hstack((corner_features, acc_features))

Example #4

File: combine_features2.py Project: nagyistge/seahorse-ml

def feature_vector(trip):
    velocity = compute_velocity(trip)
    speed = compute_scalar(velocity)
    corner_features = corners_features(velocity)
    acc_features = acceleration_features(speed)
    return np.hstack((corner_features, acc_features))