Support tableformer model choice

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

docling/datamodel/base_models.py

@@ -24,6 +24,11 @@ class DocInputType(str, Enum):
     STREAM = auto()
 
 
+class TableFormerMode(str, Enum):
+    FAST = auto()
+    ACCURATE = auto()
+
+
 class CoordOrigin(str, Enum):
     TOPLEFT = auto()
     BOTTOMLEFT = auto()
@@ -305,6 +310,7 @@ class TableStructureOptions(BaseModel):
         #        are merged across table columns.
         # False: Let table structure model define the text cells, ignore PDF cells.
     )
+    mode: TableFormerMode = TableFormerMode.FAST
 
 
 class PipelineOptions(BaseModel):

docling/models/table_structure_model.py

@@ -1,4 +1,5 @@
 import copy
+from pathlib import Path
 from typing import Iterable, List
 
 import numpy
@@ -10,6 +11,7 @@ from docling.datamodel.base_models import (
     Page,
     TableCell,
     TableElement,
+    TableFormerMode,
     TableStructurePrediction,
 )
 
@@ -18,10 +20,15 @@ class TableStructureModel:
     def __init__(self, config):
         self.config = config
         self.do_cell_matching = config["do_cell_matching"]
+        self.mode = config["mode"]
 
         self.enabled = config["enabled"]
         if self.enabled:
-            artifacts_path = config["artifacts_path"]
+            artifacts_path: Path = config["artifacts_path"]
+
+            if self.mode == TableFormerMode.ACCURATE:
+                artifacts_path = artifacts_path / "fat"
+
             # Third Party
             import docling_ibm_models.tableformer.common as c
 

docling/pipeline/standard_model_pipeline.py

@@ -32,6 +32,7 @@ class StandardModelPipeline(BaseModelPipeline):
                     "artifacts_path": artifacts_path
                     / StandardModelPipeline._table_model_path,
                     "enabled": pipeline_options.do_table_structure,
+                    "mode": pipeline_options.table_structure_options.mode,
                     "do_cell_matching": pipeline_options.table_structure_options.do_cell_matching,
                 }
             ),