Correct the MONAI models' error in OrientationD in pre-processing transform from "RAS" to "LPS" (#559)

Signed-off-by: M Q <[email protected]>

Author: MMelQin

examples/apps/ai_remote_infer_app/spleen_seg_operator.py

@@ -127,7 +127,7 @@ def pre_process(self, img_reader, out_dir: str = "./input_images") -> Compose:
                     resample=False,
                     output_ext=".nii",
                 ),
-                Orientationd(keys=my_key, axcodes="RAS"),
+                Orientationd(keys=my_key, axcodes="LPS"),
                 Spacingd(keys=my_key, pixdim=[1.5, 1.5, 2.9], mode=["bilinear"]),
                 ScaleIntensityRanged(keys=my_key, a_min=-57, a_max=164, b_min=0.0, b_max=1.0, clip=True),
                 EnsureTyped(keys=my_key),

examples/apps/ai_unetr_seg_app/unetr_seg_operator.py

@@ -143,7 +143,7 @@ def pre_process(self, img_reader, out_dir: str = "./input_images") -> Compose:
                     output_ext=".nii",
                 ),
                 Spacingd(keys=my_key, pixdim=(1.5, 1.5, 2.0), mode=("bilinear")),
-                Orientationd(keys=my_key, axcodes="RAS"),
+                Orientationd(keys=my_key, axcodes="LPS"),
                 ScaleIntensityRanged(my_key, a_min=-175, a_max=250, b_min=0.0, b_max=1.0, clip=True),
                 CropForegroundd(my_key, source_key=my_key),
             ]

examples/apps/cchmc_ped_abd_ct_seg_app/abdomen_seg_operator.py

@@ -226,7 +226,7 @@ def pre_process(self, img_reader) -> Compose:
                 # img_reader: specialized InMemImageReader, derived from MONAI ImageReader
                 LoadImaged(keys=my_key, reader=img_reader),
                 EnsureChannelFirstd(keys=my_key),
-                Orientationd(keys=my_key, axcodes="RAS"),
+                Orientationd(keys=my_key, axcodes="LPS"),
                 Spacingd(keys=my_key, pixdim=[1.5, 1.5, 3.0], mode=["bilinear"]),
                 ScaleIntensityRanged(keys=my_key, a_min=-250, a_max=400, b_min=0.0, b_max=1.0, clip=True),
                 CropForegroundd(keys=my_key, source_key=my_key, mode="minimum"),