Upload ultrasonic dataset (168 frames, 20 subjects)

README.md

@@ -33,7 +33,7 @@ per-transducer channel data after sub-aperture combination and IQ demodulation.
 - **Name:** `rf_iq`
 - **Shape:** `(168, 192, 192, 3, 2, 215)`
 - **Axes:** `['frame', 'transducer', 'scanline', 'focal_zone', 'iq', 'sample']`
-- **Chunks:** `(1, 32, 32, 1, 2, 215)` (one frame per chunk on the leading axis — aligned with DataLoader workers).
+- **Chunks:** `(1, 192, 192, 3, 2, 215)` (one frame per chunk on the leading axis — aligned with DataLoader workers).
 - **Dtype:** `float32`
 - **IQ index:** `0` = in-phase, `1` = quadrature.