nv-raw2insights-us: sync pipeline.yaml, data card and assets with GitHub (#19)

- nv-raw2insights-us: add pipeline.yaml (DAS reconstruction recipe) (48a8fef7cfe4f8fe8ad1d3b9d6e70eda83bf0000)
- nv-raw2insights-us: sync data card and assets with GitHub (47b38d666d5e5e86bec7be03049c662f55f94061)
- nv-raw2insights-us: match pipeline.yaml to GitHub, add the reconstruction figure (d66c6ad93fc15cb79b9aa6472830761d2917992c)
- nv-raw2insights-us: restore the pipeline.yaml header comment (05afe65faf525365fc112e1486183adaad3fe3c3)


Co-authored-by: Tristan Stevens <tristan-deep@users.noreply.huggingface.co>

nv-raw2insights-us/README.md

@@ -21,6 +21,12 @@ size_categories:
 
 # NV-Raw2Insights-US — Simulated FSA Channel Data with Sound-Speed, Aberration, and Segmentation Ground Truth
 
+![DBUA B-mode reconstruction and estimated sound speed using NV-Raw2Insights-US data](assets/dbua-reconstruction.gif)
+
+*DBUA results using synthetic validation sample 0084 from NV-Raw2Insights-US: B-mode (left) and estimated sound speed (right). Bulk-speed calibration is followed by 400 spatial-refinement iterations, with fixed display scales. These are DBUA reconstructions, not predictions from an NV-Raw2Insights-US model.*
+
+<!-- assets/main.png is the unlabelled final B-mode panel from this run, for the dataset collage. -->
+
 ## Dataset Description
 
 NV-Raw2Insights-US is a **simulated full-synthetic-aperture (FSA)** ultrasound

nv-raw2insights-us/pipeline.yaml

@@ -0,0 +1,23 @@
+# Reconstruction pipeline recipe for the NV-Raw2Insights-US example.
+#
+# This file is written by reconstruct.py (pipeline.to_yaml) as a shareable
+# artifact; the pipeline is defined in code, then saved here and loaded back
+# in, so this file is provably what reconstruct.py actually runs. It records
+# the DAS -> envelope -> normalize -> log-compress operation chain; the
+# acquisition/grid parameters are derived from the data file at run time, not
+# stored here.
+#
+# This is the plain DAS recipe, without sound-speed (aberration) correction.
+# reconstruct.py's SoS-corrected panel runs this same pipeline a second time,
+# passing sos_map/sos_grid_x/sos_grid_z to the "beamform" op at call time.
+
+pipeline:
+    operations:
+    -   name: beamform
+    - envelope_detect
+    -   name: normalize
+        params:
+            output_range:
+            - 0.0
+            - 1.0
+    - log_compress