diff --git a/coclico/metrics/listing.py b/coclico/metrics/listing.py
index 246c502..d318c21 100644
--- a/coclico/metrics/listing.py
+++ b/coclico/metrics/listing.py
@@ -1,5 +1,6 @@
 from coclico.malt0.malt0 import MALT0
+from coclico.mobj0.mobj0 import MOBJ0
 from coclico.mpap0.mpap0 import MPAP0
 from coclico.mpla0.mpla0 import MPLA0
 
-METRICS = {"mpap0": MPAP0, "mpla0": MPLA0, "malt0": MALT0}
+METRICS = {"mpap0": MPAP0, "mpla0": MPLA0, "malt0": MALT0, "mobj0": MOBJ0}
diff --git a/coclico/mobj0/__init__.py b/coclico/mobj0/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/coclico/mobj0/mobj0.py b/coclico/mobj0/mobj0.py
new file mode 100644
index 0000000..19317f0
--- /dev/null
+++ b/coclico/mobj0/mobj0.py
@@ -0,0 +1,30 @@
+from pathlib import Path
+from typing import Dict, List
+
+import pandas as pd
+from gpao.job import Job
+
+from coclico.metrics.metric import Metric
+
+
+class MOBJ0(Metric):
+    """Metric MOBJ0 (for "Métrique par objet 0")
+    TODO Description
+    See doc/mobj0.md
+    """
+
+    # Pixel size for occupancy map
+    pixel_size = 0.5
+    metric_name = "mobj0"
+
+    def create_metric_intrinsic_one_job(self, name: str, input: Path, output: Path, is_ref: bool):
+        raise NotImplementedError
+
+    def create_metric_relative_to_ref_jobs(
+        self, name: str, out_c1: Path, out_ref: Path, output: Path, c1_jobs: List[Job], ref_jobs: List[Job]
+    ) -> Job:
+        raise NotImplementedError
+
+    @staticmethod
+    def compute_note(metric_df: pd.DataFrame, note_config: Dict):
+        raise NotImplementedError
diff --git a/coclico/mobj0/mobj0_intrinsic.py b/coclico/mobj0/mobj0_intrinsic.py
new file mode 100644
index 0000000..b3439b5
--- /dev/null
+++ b/coclico/mobj0/mobj0_intrinsic.py
@@ -0,0 +1,89 @@
+import argparse
+import logging
+from pathlib import Path
+
+import geopandas as gpd
+import numpy as np
+import pandas as pd
+import rasterio
+from osgeo import gdal
+from rasterio.features import shapes as rasterio_shapes
+from shapely.geometry import shape as shapely_shape
+
+import coclico.io
+from coclico.metrics.occupancy_map import create_occupancy_map_array, read_las
+from coclico.mobj0.mobj0 import MOBJ0
+
+gdal.UseExceptions()
+
+
+def create_objects_array(las_file, pixel_size, class_weights):
+    xs, ys, classifs, crs = read_las(las_file)
+
+    binary_maps, x_min, y_max = create_occupancy_map_array(xs, ys, classifs, pixel_size, class_weights)
+
+    return binary_maps, crs, x_min, y_max
+
+
+def vectorize_occupancy_map(binary_maps, crs, x_min, y_max, pixel_size):
+    # Create empty dataframe
+    gdf_list = []
+
+    for ii, map_layer in enumerate(binary_maps):
+        shapes_layer = rasterio_shapes(
+            map_layer,
+            connectivity=8,
+            transform=rasterio.transform.from_origin(
+                x_min - pixel_size / 2, y_max + pixel_size / 2, pixel_size, pixel_size
+            ),
+        )
+
+        geometries = [shapely_shape(shapedict) for shapedict, value in shapes_layer if value != 0]
+        nb_geometries = len(geometries)
+        gdf_list.append(
+            gpd.GeoDataFrame(
+                {"layer": ii * np.ones(nb_geometries), "geometry": geometries},
+                geometry="geometry",
+                crs=crs,
+            )
+        )
+
+    gdf = pd.concat(gdf_list)
+
+    return gdf
+
+
+def compute_metric_intrinsic(las_file: Path, config_file: Path, output_geojson: Path, pixel_size: float = 0.5):
+    config_dict = coclico.io.read_config_file(config_file)
+    class_weights = config_dict[MOBJ0.metric_name]["weights"]
+    output_geojson.parent.mkdir(parents=True, exist_ok=True)
+    obj_array, crs, x_min, y_max = create_objects_array(las_file, pixel_size, class_weights)
+    polygons_gdf = vectorize_occupancy_map(obj_array, crs, x_min, y_max, pixel_size)
+    polygons_gdf.to_file(output_geojson)
+
+
+def parse_args():
+    parser = argparse.ArgumentParser("Run malt0 intrinsic metric on one tile")
+    parser.add_argument("-i", "--input-file", type=Path, required=True, help="Path to the LAS file")
+    parser.add_argument("-o", "--output-geojson", type=Path, required=True, help="Path to the output geojson")
+    parser.add_argument(
+        "-c",
+        "--config-file",
+        type=Path,
+        required=True,
+        help="Coclico configuration file",
+    )
+    parser.add_argument(
+        "-p", "--pixel-size", type=float, required=True, help="Pixel size of the intermediate occupancy map"
+    )
+    return parser.parse_args()
+
+
+if __name__ == "__main__":
+    args = parse_args()
+    logging.basicConfig(format="%(message)s", level=logging.DEBUG)
+    compute_metric_intrinsic(
+        las_file=Path(args.input_file),
+        config_file=args.config_file,
+        output_geojson=Path(args.output_geojson),
+    )
diff --git a/coclico/mobj0/mobj0_relative.py b/coclico/mobj0/mobj0_relative.py
new file mode 100644
index 0000000..84ac56c
--- /dev/null
+++ b/coclico/mobj0/mobj0_relative.py
@@ -0,0 +1,74 @@
+import argparse
+import logging
+from pathlib import Path
+
+import pandas as pd
+
+from coclico.config import csv_separator
+from coclico.io import read_config_file
+from coclico.mobj0.mobj0 import MOBJ0
+
+
+def compute_metric_relative(
+    c1_dir: Path, ref_dir: Path, occupancy_dir: Path, config_file: str, output_csv: Path, output_csv_tile: Path
+):
+    """Compute metrics that describe the difference between c1 and ref height maps.
+    The occupancy map is used to mask the pixels for which the difference is computed
+
+    The metrics are:
+    - mean_diff: the average difference in z between the height maps
+    - max_diff: the maximum difference in z between the height maps
+    - std_diff: the standard deviation of the difference in z betweeen the height maps
+
+    These metrics are stored tile by tile and class by class in the output_csv_tile file
+    These metrics are stored class by class for the whole data in the output_csv file
+
+    Args:
+        c1_dir (Path):  path to the c1 classification directory,
+                        where there are json files with the result of mpap0 intrinsic metric
+        ref_dir (Path): path to the reference classification directory,
+                        where there are json files with the result of mpap0 intrinsic metric
+        class_weights (Dict):   class weights dict
+        output_csv (Path):  path to output csv file
+        output_csv_tile (Path):  path to output csv file, result by tile
+
+    """
+    config_dict = read_config_file(config_file)
+    class_weights = config_dict[MOBJ0.metric_name]["weights"]
+    classes = sorted(class_weights.keys())
+    classes
+    csv_data = []
+
+    df = pd.DataFrame(csv_data)
+    df.to_csv(output_csv, index=False, sep=csv_separator)
+
+    logging.debug(df.to_markdown())
+    raise NotImplementedError
+
+
+def parse_args():
+    parser = argparse.ArgumentParser("Run malt0 metric on one tile")
+    parser.add_argument(
+        "-i",
+        "--input-dir",
+        required=True,
+        type=Path,
+        help="Path to the classification directory, \
+        where there are tif files with the result of malt0 intrinsic metric (MNx for each class)",
+    )
+    raise NotImplementedError
+    return parser.parse_args()
+
+
+if __name__ == "__main__":
+    args = parse_args()
+    logging.basicConfig(format="%(message)s", level=logging.DEBUG)
+    compute_metric_relative(
+        c1_dir=Path(args.input_dir),
+        ref_dir=Path(args.ref_dir),
+        occupancy_dir=Path(args.occupancy_dir),
+        config_file=args.config_file,
+        output_csv=Path(args.output_csv),
+        output_csv_tile=Path(args.output_csv_tile),
+    )
+    raise NotImplementedError
diff --git a/environment.yml b/environment.yml
index 81f31ba..f5c723f 100644
--- a/environment.yml
+++ b/environment.yml
@@ -9,6 +9,7 @@ dependencies:
   - laspy
   - rasterio
   - pandas
+  - geopandas
   - tabulate
   - requests
   - pytest
diff --git a/test/configs/config_test_metrics.yaml b/test/configs/config_test_metrics.yaml
index 5cfe788..be574a5 100644
--- a/test/configs/config_test_metrics.yaml
+++ b/test/configs/config_test_metrics.yaml
@@ -99,3 +99,9 @@ malt0:
       max_point:
         metric: 0.5
         note: 0
+
+mobj0:
+  weights:
+    "6": 2 
+    "1": 1  
+  notes: {}
\ No newline at end of file
diff --git a/test/mobj0/test_mobj0.py b/test/mobj0/test_mobj0.py
new file mode 100644
index 0000000..124437f
--- /dev/null
+++ b/test/mobj0/test_mobj0.py
@@ -0,0 +1,28 @@
+import shutil
+from pathlib import Path
+
+import pytest
+
+import coclico.io as io
+from coclico.mobj0.mobj0 import MOBJ0
+
+pytestmark = pytest.mark.docker
+
+TMP_PATH = Path("./tmp/mobj0")
+CONFIG_FILE_METRICS = Path("./test/configs/config_test_metrics.yaml")
+
+
+def setup_module(module):
+    if TMP_PATH.is_dir():
+        shutil.rmtree(TMP_PATH)
+
+
+def generate_metric_dataframes():
+    raise NotImplementedError
+
+
+def test_compute_note():
+    input_df, expected_out = generate_metric_dataframes()
+    notes_config = io.read_config_file(CONFIG_FILE_METRICS)["mobj0"]["notes"]
+    out_df = MOBJ0.compute_note(input_df, notes_config)
+    assert out_df.equals(expected_out)
diff --git a/test/mobj0/test_mobj0_intrinsic.py b/test/mobj0/test_mobj0_intrinsic.py
new file mode 100644
index 0000000..4d6677c
--- /dev/null
+++ b/test/mobj0/test_mobj0_intrinsic.py
@@ -0,0 +1,54 @@
+import logging
+import shutil
+import subprocess as sp
+from pathlib import Path
+
+import geopandas as gpd
+import pytest
+
+import coclico.io
+from coclico.mobj0 import mobj0_intrinsic
+
+pytestmark = pytest.mark.docker
+
+TMP_PATH = Path("./tmp/mobj0_intrinsic")
+CONFIG_FILE_METRICS = Path("./test/configs/config_test_metrics.yaml")
+
+
+def setup_module(module):
+    if TMP_PATH.is_dir():
+        shutil.rmtree(TMP_PATH)
+
+
+def test_compute_metric_intrinsic(ensure_test1_data):
+    las_file = Path("./data/test1/niv1/tile_splitted_2818_32247.laz")
+    pixel_size = 0.5
+    output_geojson = TMP_PATH / "intrinsic" / "unit_test_mpla0_intrinsic.geojson"
+    config = coclico.io.read_config_file(CONFIG_FILE_METRICS)
+    nb_layers = len(config["mobj0"]["weights"])
+
+    mobj0_intrinsic.compute_metric_intrinsic(las_file, CONFIG_FILE_METRICS, output_geojson, pixel_size=pixel_size)
+
+    assert output_geojson.exists()
+    gdf = gpd.read_file(output_geojson)
+    logging.debug(gdf.to_markdown())
+    assert len(gdf.index) > 0
+    assert len(set(gdf["layer"])) == nb_layers
+
+
+def test_run_main(ensure_test1_data):
+    pixel_size = 0.5
+    input_file = Path("./data/test1/niv1/tile_splitted_2818_32247.laz")
+    output_geojson = TMP_PATH / "intrinsic" / "tile_splitted_2818_32247.geojson"
+
+    cmd = f"""python -m coclico.mobj0.mobj0_intrinsic \
+    --input-file {input_file} \
+    --output-geojson {output_geojson} \
+    --config-file {CONFIG_FILE_METRICS} \
+    --pixel-size {pixel_size}
+    """
+    sp.run(cmd, shell=True, check=True)
+
+    logging.info(cmd)
+
+    assert output_geojson.exists()
diff --git a/test/mobj0/test_mobj0_relative.py b/test/mobj0/test_mobj0_relative.py
new file mode 100644
index 0000000..54516a4
--- /dev/null
+++ b/test/mobj0/test_mobj0_relative.py
@@ -0,0 +1,22 @@
+import shutil
+from pathlib import Path
+
+import pytest
+
+pytestmark = pytest.mark.docker
+
+TMP_PATH = Path("./tmp/mobj0_relative")
+CONFIG_FILE_METRICS = Path("./test/configs/config_test_metrics.yaml")
+
+
+def setup_module(module):
+    if TMP_PATH.is_dir():
+        shutil.rmtree(TMP_PATH)
+
+
+def test_compute_metric_relative(ensure_mobj0_data):
+    raise NotImplementedError
+
+
+def test_run_main(ensure_mobj0_data):
+    raise NotImplementedError