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import matplotlib.pyplot as plt
import numpy as np
import cv2
NACA_0018 =[[1.0000, 0.00000],
[0.9500, 0.01210],
[0.9000, 0.02172],
[0.8000, 0.03935],
[0.7000, 0.05496],
import numpy as np
from filterpy.kalman import ExtendedKalmanFilter
# Assume our state vector x includes only position for simplicity.
# In practice, it would include orientation, velocity, etc.
# Let’s say x[0:3] is the "true" position of the reference point.
# Known sensor offset relative to the reference point
sensor_offset = np.array([0.1, -0.05, 0.0]) # in meters
@yoi-hibino
yoi-hibino / optical_flow.py
Created March 3, 2025 17:35
Shock Wave Imaging - Optical Flow Analysis
import cv2
import numpy as np
import matplotlib.pyplot as plt
cap = cv2.VideoCapture('video.mp4')
ret, prev_frame = cap.read()
if not ret:
raise ValueError("Could not read video.")
prev_gray = cv2.cvtColor(prev_frame, cv2.COLOR_BGR2GRAY)
@yoi-hibino
yoi-hibino / multiple_sensor.cpp
Created March 9, 2025 07:03
Multiple IMU fusion
#include <Wire.h>
#include <Arduino.h>
// Define number of IMUs and EKF parameters
#define NUM_IMUS 3 // Number of IMU sensors
#define EKF_N 10 // State vector dimension: [position (3), velocity (3), quaternion (4)]
#define EKF_M 9 // Measurement vector dimension: [accelerometer (3), gyroscope (3), magnetometer (3)]
// Include TinyEKF and set dimensions
#define EKF_N 10
@yoi-hibino
yoi-hibino / csm.py
Created March 14, 2025 05:55
CSM Sample
from huggingface_hub import hf_hub_download
from generator import load_csm_1b
import torchaudio
# need this to access to model.
# you also need to get access to https://huggingface.co/meta-llama/Llama-3.2-1B
from huggingface_hub import login
login("your_huggingface_token")
model_path = hf_hub_download(repo_id="sesame/csm-1b", filename="ckpt.pt")
@yoi-hibino
yoi-hibino / lidar_locator.py
Last active March 16, 2025 02:37
LiDAR Localization in 3D CAD Environment
import numpy as np
import open3d as o3d
import matplotlib.pyplot as plt
import transforms3d as t3d
import trimesh
import scipy.spatial
class SensorLocalizer:
def __init__(self, cad_model_path, scale_factor=1.0):
"""
@yoi-hibino
yoi-hibino / realtime_lidar_locator.py
Created March 16, 2025 02:57
Real-time LiDAR Localization in CAD Environment
import numpy as np
import open3d as o3d
import transforms3d as t3d
import trimesh
import scipy.spatial
from sklearn.neighbors import KDTree
import time
import threading
import queue
import concurrent.futures
@yoi-hibino
yoi-hibino / csm_openai.py
Created March 16, 2025 04:42
Sesame+OpenAI API
from huggingface_hub import hf_hub_download
from huggingface_hub import login
from generator import load_csm_1b
import torchaudio
import sounddevice as sd
import numpy as np
from openai import OpenAI
import os
login("__your_huggingface_access_token_here__")