Align Cornelius comparison with fastweb-single

README.md

@@ -23,6 +23,7 @@ MobileViT-XXS corner detector trained to locate the four corners of a CCG card
 | Outputs | corners (8 floats, normalised [0,1]), compatibility presence logit, sharpness scalar |
 | Parameters | ~1.06M |
 | File size | 4.2 MB (fp32 ONNX, simplified) |
+| Local CPU speed | 23.2 ms / frame, 43.0 FPS (ONNX Runtime CPU, single thread, 384×384) |
 | Codename | cornelius |
 | Latest version | 2.12 |
 
@@ -48,6 +49,36 @@ degenerate predictions where two predicted corners nearly coincide.
 | 1.221 | MobileViT-XXS + independent SimCC | ~1.82M | 7.1 MB | — | 0.933910 / 0.928732 | 138 / 91 | Strong normal detector, but vulnerable to rotation-induced corner collapse. |
 | 1.210 | MobileViT-XXS + independent SimCC | ~1.82M | 7.1 MB | 0.8857 combined | — | — | Earlier beta; reported combined held-out IoU 0.8857. |
 
+### Cornelius vs fastweb-single
+
+Cornelius remains the stable, conservative default. The `fastweb-single` testing
+model is a smaller EfficientViT-B0 global-token SimCC detector that is being
+evaluated as a faster replacement candidate. Both models use the same 384×384
+input contract and produce `corners`, compatibility `presence`, and `sharpness`
+outputs.
+
+| Model | Channel | Normal test IoU | Normal collapse | Full ±50° mean / p10 IoU | Full-rotation bad / collapse | ONNX size | Params | Local CPU speed |
+|---|---|---:|---:|---:|---:|---:|---:|---:|
+| Cornelius 2.12 | stable | **0.968911** | 18 | 0.970411 / 0.954621 | **0 / 0** | 4.41 MB | 1.05M | 23.2 ms / 43.0 FPS |
+| fastweb-single 1.39 | testing | 0.968839 | **13** | **0.974255 / 0.960757** | 1 / 0 | **3.19 MB** | **0.77M** | **8.4 ms / 119.4 FPS** |
+
+Takeaways:
+
+- Normal accuracy is effectively tied: fastweb-single trails Cornelius by
+  0.000072 IoU on the normal held-out test.
+- fastweb-single is about 28% smaller on disk and about 2.8× faster in the
+  local single-thread CPU benchmark.
+- fastweb-single has stronger rotation-stress mean and p10 IoU, but still has
+  one remaining bad rotation-stress case where Cornelius has zero.
+- The current published fastweb-single ONNX uses the same argmax SimCC decoding
+  style; small post-hoc parabolic peak-refinement gains were observed in local
+  experiments but are not baked into this artifact.
+
+Speed benchmark details: ONNX Runtime 1.24.4, CPUExecutionProvider,
+`intra_op_num_threads=1`, `inter_op_num_threads=1`, 50 warmup runs and 300 timed
+runs on a 384×384 float32 input. These numbers are intended for model-to-model
+comparison on the same machine, not as universal device benchmarks.
+
 ### Cornelius 2.12 checkpoint selection
 
 The 2.12 release was selected from a low-LR continuation because it best balanced