Add sensor fusion node

docker/perception/sensor_fusion/sensor_fusion.Dockerfile

@@ -0,0 +1,55 @@
+ARG BASE_IMAGE=ghcr.io/watonomous/wato_monorepo/base:humble-ubuntu22.04
+
+################################ Source ################################
+FROM ${BASE_IMAGE} as source
+
+WORKDIR ${AMENT_WS}/src
+
+# Copy in source code 
+COPY src/perception/sensor_fusion sensor_fusion
+COPY src/wato_msgs/sample_msgs sample_msgs
+
+# Scan for rosdeps
+RUN apt-get -qq update && rosdep update && \
+    rosdep install --from-paths . --ignore-src -r -s \
+        | grep 'apt-get install' \
+        | awk '{print $3}' \
+        | sort  > /tmp/colcon_install_list
+
+################################# Dependencies ################################
+FROM ${BASE_IMAGE} as dependencies
+
+# Install Rosdep requirements
+COPY --from=source /tmp/colcon_install_list /tmp/colcon_install_list
+RUN apt-fast install -qq -y --no-install-recommends $(cat /tmp/colcon_install_list)
+
+# Copy in source code from source stage
+WORKDIR ${AMENT_WS}
+COPY --from=source ${AMENT_WS}/src src
+
+# Dependency Cleanup
+WORKDIR /
+RUN apt-get -qq autoremove -y && apt-get -qq autoclean && apt-get -qq clean && \
+    rm -rf /root/* /root/.ros /tmp/* /var/lib/apt/lists/* /usr/share/doc/*
+
+################################ Build ################################
+FROM dependencies as build
+
+# Build ROS2 packages
+WORKDIR ${AMENT_WS}
+RUN . /opt/ros/$ROS_DISTRO/setup.sh && \
+    colcon build \
+        --cmake-args -DCMAKE_BUILD_TYPE=Release
+
+# Entrypoint will run before any CMD on launch. Sources ~/opt/<ROS_DISTRO>/setup.bash and ~/ament_ws/install/setup.bash
+COPY docker/wato_ros_entrypoint.sh ${AMENT_WS}/wato_ros_entrypoint.sh
+ENTRYPOINT ["./wato_ros_entrypoint.sh"]
+
+################################ Prod ################################
+FROM build as deploy
+
+# Source Cleanup and Security Setup
+RUN chown -R $USER:$USER ${AMENT_WS}
+RUN rm -rf src/*
+
+USER ${USER}

modules/docker-compose.perception.yaml

@@ -89,3 +89,14 @@ services:
       target: deploy
     image: "${PERCEPTION_DEPTH_ESTIMATION_IMAGE}:${TAG}"
     command: /bin/bash -c "ros2 launch depth_estimation eve.launch.py"
+
+  sensor_fusion:
+    build:
+      context: ..
+      dockerfile: docker/perception/sensor_fusion/sensor_fusion.Dockerfile
+      cache_from:
+        - "${PERCEPTION_SENSOR_FUSION_IMAGE}:build_${TAG}"
+        - "${PERCEPTION_SENSOR_FUSION_IMAGE}:build_main"
+      target: deploy
+    image: "${PERCEPTION_SENSOR_FUSION_IMAGE}:${TAG}"
+    command: /bin/bash -c "ros2 launch sensor_fusion eve.launch.py"

src/perception/camera_object_detection/config/eve_2cam_config.yaml

@@ -0,0 +1,23 @@
+left_camera_object_detection_node:
+  ros__parameters:
+    camera_topic: /camera/left/image_color
+    publish_vis_topic: /camera/left/camera_detections_viz
+    publish_detection_topic: /camera/left/camera_detections
+    model_path: /perception_models/yolov8m.pt
+    image_size: 1024
+
+center_camera_object_detection_node:
+  ros__parameters:
+    camera_topic: /camera/center/image_color
+    publish_vis_topic: /camera/center/camera_detections_viz
+    publish_detection_topic: /camera/center/camera_detections
+    model_path: /perception_models/yolov8m.pt
+    image_size: 1024
+
+right_camera_object_detection_node:
+  ros__parameters:
+    camera_topic: /camera/right/image_color
+    publish_vis_topic: /camera/right/camera_detections_viz
+    publish_detection_topic: /camera/right/camera_detections
+    model_path: /perception_models/yolov8m.pt
+    image_size: 1024

src/perception/sensor_fusion/package.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>sensor_fusion</name>
+  <version>0.0.0</version>
+  <description>Sensor fusion node that subscribes to multiple sensor topics and synchronizes their output as a unified output message.</description>
+  <maintainer email="[email protected]">bolty</maintainer>
+  <license>TODO: License declaration</license>
+
+
+  <depend>sensor_msgs</depend>
+  <depend>std_msgs</depend>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+ <export>
+    <build_type>ament_python</build_type>
+  </export>
+
+</package>

src/perception/sensor_fusion/sensor_fusion/sensor_fusion_node.py

@@ -0,0 +1,45 @@
+import rclpy
+from rclpy.node import Node
+from sensor_msgs.msg import Image
+from std_msgs.msg import String
+from message_filters import Subscriber, TimeSynchronizer
+from cv_bridge import CvBridge
+import json
+
+class SensorFusionNode(Node):
+    def __init__(self):
+        super().__init__('sensor_fusion_node')
+
+        self.bridge = CvBridge()
+
+        # Subscribe to camera topics
+        self.subscribers = [
+            Subscriber(self, Image, f'/camera{i}/image_raw') for i in range(1, 9)
+        ]
+
+        # TimeSynchronizer to synchronize messages
+        self.ts = TimeSynchronizer(self.subscribers, 10)
+        self.ts.registerCallback(self.image_callback)
+
+        # Publisher for synchronized images
+        self.publisher = self.create_publisher(String, 'synchronized_images', 10)
+
+    def image_callback(self, *images):
+        # Convert ROS images to OpenCV format and encode them
+        encoded_images = [self.bridge.cv2_to_imgmsg(cv2.imencode('.jpg', self.bridge.imgmsg_to_cv2(img, 'bgr8'))[1], encoding='bgr8') for img in images]
+
+        # Create a JSON object to hold the images
+        images_dict = {f'camera{i+1}': img.data.tobytes().hex() for i, img in enumerate(encoded_images)}
+
+        # Publish the synchronized images as an array of images
+        self.publisher.publish(json.dumps(images_dict))
+
+def main(args=None):
+    rclpy.init(args=args)
+    node = SensorFusionNode()
+    rclpy.spin(node)
+    node.destroy_node()
+    rclpy.shutdown()
+
+if __name__ == '__main__':
+    main()

src/perception/sensor_fusion/setup.py

@@ -0,0 +1,31 @@
+from setuptools import setup
+import os
+from glob import glob
+
+package_name = 'sensor_fusion'
+
+setup(
+    name=package_name,
+    version='0.0.0',
+    packages=[package_name],
+    data_files=[
+        ('share/ament_index/resource_index/packages',
+            ['resource/' + package_name]),
+        ('share/' + package_name, ['package.xml']),
+        (os.path.join('share', package_name, 'launch'), glob('launch/*.launch.py')),
+        (os.path.join('share', package_name, 'launch', 'include'), glob('launch/include/*.launch.py')),
+        (os.path.join('share', package_name, 'config'), glob('config/*.yaml')),
+    ],
+    install_requires=['setuptools'],
+    zip_safe=True,
+    maintainer='Justin',
+    maintainer_email='[email protected]',
+    description='TODO: Package description',
+    license='TODO: License declaration',
+    tests_require=['pytest'],
+    entry_points={
+        'console_scripts': [
+            'sensor_fusion_node = sensor_fusion.sensor_fusion_node:main'
+        ],
+    },
+)

watod-config.sh

@@ -15,7 +15,7 @@
 ##	 - simulation			:	starts simulation
 ##   - samples             	:   starts sample ROS2 pubsub nodes
 
-# ACTIVE_MODULES=""
+ACTIVE_MODULES="perception"
 
 ################################# MODE OF OPERATION #################################
 ## Possible modes of operation when running watod.
@@ -31,7 +31,7 @@
 
 ## Tag to use. Images are formatted as <IMAGE_NAME>:<TAG> with forward slashes replaced with dashes.
 ## DEFAULT = "<your_current_github_branch>"
-# TAG=""
+TAG="jusleung"
 
 # Docker Registry to pull/push images. DEFAULT = "ghcr.io/watonomous/wato_monorepo"
 # REGISTRY_URL=""

watod_scripts/watod-setup-env.sh

@@ -73,6 +73,7 @@ PERCEPTION_LANE_DETECTION_IMAGE=${PERCEPTION_LANE_DETECTION_IMAGE:-"$REGISTRY_UR
 PERCEPTION_SEMANTIC_SEGMENTATION_IMAGE=${PERCEPTION_SEMANTIC_SEGMENTATION_IMAGE:-"$REGISTRY_URL/perception/semantic_segmentation"}
 PERCEPTION_TRACKING_IMAGE=${PERCEPTION_TRACKING_IMAGE:-"$REGISTRY_URL/perception/tracking"}
 PERCEPTION_DEPTH_ESTIMATION_IMAGE=${PERCEPTION_DEPTH_ESTIMATION_IMAGE:-"$REGISTRY_URL/perception/depth_estimation"}
+PERCEPTION_SENSOR_FUSION_IMAGE=${PERCEPTION_SENSOR_FUSION_IMAGE:-"$REGISTRY_URL/perception/sensor_fusion"}
 
 # World Modeling
 WORLD_MODELING_HD_MAP_IMAGE=${WORLD_MODELING_HD_MAP_IMAGE:-"$REGISTRY_URL/world_modeling/hd_map"}
@@ -168,6 +169,7 @@ echo "PERCEPTION_LANE_DETECTION_IMAGE=$PERCEPTION_LANE_DETECTION_IMAGE" >> "$MOD
 echo "PERCEPTION_SEMANTIC_SEGMENTATION_IMAGE=$PERCEPTION_SEMANTIC_SEGMENTATION_IMAGE" >> "$MODULES_DIR/.env"
 echo "PERCEPTION_TRACKING_IMAGE=$PERCEPTION_TRACKING_IMAGE" >> "$MODULES_DIR/.env"
 echo "PERCEPTION_DEPTH_ESTIMATION_IMAGE=$PERCEPTION_DEPTH_ESTIMATION_IMAGE" >> "$MODULES_DIR/.env"
+echo "PERCEPTION_SENSOR_FUSION_IMAGE=$PERCEPTION_SENSOR_FUSION_IMAGE" >> "$MODULES_DIR/.env"
 
 # World Modeling
 echo "WORLD_MODELING_HD_MAP_IMAGE=$WORLD_MODELING_HD_MAP_IMAGE" >> "$MODULES_DIR/.env"