S15.2: XFeat exports at a fixed shape and loads under tract
tools/export-xfeat.sh exports the convolutional network alone at 768×1024 grayscale, on the pattern of export-seg-model.sh: thirteen standard operator types, no dynamic axes, the keypoint decoding left to Rust. examples/onnx_probe loads it through the ort-over-tract backend the app ships with nothing unsupported and runs it in ~300 ms on the desktop CPU. The weights are Apache-2.0, read from the repository's LICENSE, with no grant on the checkpoint — recorded in models/LICENCE.md before they land, as FR-MRG-8 asks. The probe stays: the next model will need the same check.
This commit is contained in:
@@ -139,6 +139,27 @@ first (D13's lesson, S15.2).
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| SuperPoint, SuperGlue, R2D2, SiLK, MASt3R | non-commercial | — | Out on licence |
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| LightGlue | Apache-2.0 | Transformer over a variable keypoint count | Not until mutual-nearest-neighbour matching fails on a real set |
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**S15.2, 2026-09-19: XFeat loads under tract.** `tools/export-xfeat.sh`
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exports the network alone at 768×1024 — thirteen operator types, all
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standard: `Conv`, `InstanceNormalization`, `AveragePool`, `Resize`, `Slice`,
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`Transpose`, `Reshape`, `Concat`, `Add`, `Relu`, `Sigmoid`, `ReduceMean`,
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`Unsqueeze` — and
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[`examples/onnx_probe.rs`](../core/dr-segment/examples/onnx_probe.rs) loads
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the 2.8 MB file through the app's own `ort`-over-tract backend with nothing
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unsupported, in 28 ms, and runs it in **~300 ms on the reference desktop's
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CPU**. The weights ship as `models/keypoints/xfeat-1024.onnx`, recorded in
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`models/LICENCE.md`. Still to do: the tablet figure (S15.4), and a
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keypoint-level comparison against the PyTorch reference once the Rust decoder
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exists — the probe proves the graph runs, not that the numbers match.
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The outputs are three maps at 1/8 resolution, 96×128 for the export size:
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64-channel descriptors, 65-channel keypoint logits (each 8×8 cell's position
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plus "none"), and a reliability heatmap. The Rust decoder is: softmax over the
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65, pixel-shuffle the first 64 to full resolution, 5×5 non-maximum
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suppression, top-k by reliability, bilinear sampling of the descriptor at
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each keypoint, L2 normalise. That is `detectAndCompute` in the reference,
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minus the network.
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Without weights: AKAZE (BSD, `akaze` from rust-cv), which is adequate on
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well-textured overlaps and worse on sky, repeated structure and exposure
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drift — which is where a learned detector earns its place.
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@@ -9,18 +9,18 @@ Denominators are parsed from [`requirements.md`](requirements.md) at run time, n
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| Metric | Value |
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|---|---|
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| Source files scanned | 355 |
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| TRACES tags found | 1503 |
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| Source files scanned | 356 |
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| TRACES tags found | 1504 |
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| Requirements defined | 184 |
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| Requirements deferred (post-v1) | 24 |
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| Requirements covered | 143 |
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| **Coverage** | **77.7%** (143/184) |
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| Requirements covered | 144 |
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| **Coverage** | **78.3%** (144/184) |
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### By type
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| Type | Covered | Defined |
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|---|---|---|
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| FR | 105 | 127 |
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| FR | 106 | 127 |
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| NFR | 34 | 50 |
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| R | 4 | 7 |
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@@ -99,6 +99,7 @@ _None._
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| FR-EXP-8 | [`core/dr-decode/src/lib.rs:330`](../core/dr-decode/src/lib.rs#L330), [`core/dr-decode/src/lib.rs:354`](../core/dr-decode/src/lib.rs#L354), [`core/dr-decode/src/lib.rs:368`](../core/dr-decode/src/lib.rs#L368), [`core/dr-decode/src/lib.rs:71`](../core/dr-decode/src/lib.rs#L71), [`core/dr-decode/src/lib.rs:79`](../core/dr-decode/src/lib.rs#L79), [`core/dr-decode/src/lib.rs:82`](../core/dr-decode/src/lib.rs#L82), [`core/dr-decode/src/locate.rs:1164`](../core/dr-decode/src/locate.rs#L1164), [`core/dr-decode/src/locate.rs:1223`](../core/dr-decode/src/locate.rs#L1223), [`core/dr-decode/src/locate.rs:316`](../core/dr-decode/src/locate.rs#L316), [`core/dr-decode/src/locate.rs:487`](../core/dr-decode/src/locate.rs#L487), [`core/dr-decode/src/locate.rs:571`](../core/dr-decode/src/locate.rs#L571), [`core/dr-decode/src/locate.rs:584`](../core/dr-decode/src/locate.rs#L584), [`core/dr-decode/src/locate.rs:667`](../core/dr-decode/src/locate.rs#L667), [`core/dr-export/examples/export.rs:99`](../core/dr-export/examples/export.rs#L99), [`core/dr-export/src/encode.rs:117`](../core/dr-export/src/encode.rs#L117), [`core/dr-export/src/encode.rs:161`](../core/dr-export/src/encode.rs#L161), [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/encode.rs:206`](../core/dr-export/src/encode.rs#L206), [`core/dr-export/src/encode.rs:235`](../core/dr-export/src/encode.rs#L235), [`core/dr-export/src/encode.rs:311`](../core/dr-export/src/encode.rs#L311), [`core/dr-export/src/encode.rs:325`](../core/dr-export/src/encode.rs#L325), [`core/dr-export/src/encode.rs:408`](../core/dr-export/src/encode.rs#L408), [`core/dr-export/src/encode.rs:456`](../core/dr-export/src/encode.rs#L456), [`core/dr-export/src/encode.rs:70`](../core/dr-export/src/encode.rs#L70), [`core/dr-export/src/encode.rs:795`](../core/dr-export/src/encode.rs#L795), [`core/dr-export/src/encode.rs:809`](../core/dr-export/src/encode.rs#L809), [`core/dr-export/src/encode.rs:850`](../core/dr-export/src/encode.rs#L850), [`core/dr-export/src/encode.rs:898`](../core/dr-export/src/encode.rs#L898), [`core/dr-export/src/exif.rs:1`](../core/dr-export/src/exif.rs#L1), [`core/dr-export/src/lib.rs:136`](../core/dr-export/src/lib.rs#L136), [`core/dr-export/src/metadata.rs:1`](../core/dr-export/src/metadata.rs#L1), [`core/dr-export/src/metadata.rs:41`](../core/dr-export/src/metadata.rs#L41), [`core/dr-export/src/metadata.rs:74`](../core/dr-export/src/metadata.rs#L74), [`core/dr-types/src/lib.rs:655`](../core/dr-types/src/lib.rs#L655), [`core/dr-types/src/settings.rs:647`](../core/dr-types/src/settings.rs#L647), [`ui/dr-ui/src/develop.rs:4539`](../ui/dr-ui/src/develop.rs#L4539), [`ui/dr-ui/src/develop.rs:4651`](../ui/dr-ui/src/develop.rs#L4651), [`ui/dr-ui/src/develop.rs:729`](../ui/dr-ui/src/develop.rs#L729), [`ui/dr-ui/src/export.rs:467`](../ui/dr-ui/src/export.rs#L467), [`ui/dr-ui/src/export.rs:634`](../ui/dr-ui/src/export.rs#L634), [`ui/dr-ui/src/export.rs:680`](../ui/dr-ui/src/export.rs#L680), [`ui/dr-ui/src/export.rs:702`](../ui/dr-ui/src/export.rs#L702), [`ui/dr-ui/src/export.rs:826`](../ui/dr-ui/src/export.rs#L826), [`ui/dr-ui/src/export.rs:844`](../ui/dr-ui/src/export.rs#L844), [`ui/dr-ui/src/lib.rs:262`](../ui/dr-ui/src/lib.rs#L262), [`ui/dr-ui/src/lib.rs:285`](../ui/dr-ui/src/lib.rs#L285), [`ui/dr-ui/src/lib.rs:633`](../ui/dr-ui/src/lib.rs#L633), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
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| FR-EXP-9 | [`core/dr-decode/src/lib.rs:510`](../core/dr-decode/src/lib.rs#L510), [`core/dr-export/src/lib.rs:128`](../core/dr-export/src/lib.rs#L128), [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-gpu/src/adjust.rs:1106`](../core/dr-gpu/src/adjust.rs#L1106), [`ui/dr-ui/examples/face_native.rs:1`](../ui/dr-ui/examples/face_native.rs#L1), [`ui/dr-ui/src/develop.rs:4672`](../ui/dr-ui/src/develop.rs#L4672), [`ui/dr-ui/src/develop.rs:4710`](../ui/dr-ui/src/develop.rs#L4710), [`ui/dr-ui/src/develop.rs:6878`](../ui/dr-ui/src/develop.rs#L6878), [`ui/dr-ui/src/lib.rs:601`](../ui/dr-ui/src/lib.rs#L601), [`ui/dr-ui/src/library.rs:4052`](../ui/dr-ui/src/library.rs#L4052), [`ui/dr-ui/src/library.rs:4522`](../ui/dr-ui/src/library.rs#L4522), [`ui/dr-ui/src/library.rs:4558`](../ui/dr-ui/src/library.rs#L4558), [`ui/dr-ui/tests/export_ignores_the_viewport.rs:1`](../ui/dr-ui/tests/export_ignores_the_viewport.rs#L1) |
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| FR-MRG-3 | [`core/dr-decode/examples/linear_dng.rs:1`](../core/dr-decode/examples/linear_dng.rs#L1) |
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| FR-MRG-8 | [`core/dr-segment/examples/onnx_probe.rs:1`](../core/dr-segment/examples/onnx_probe.rs#L1) |
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| FR-NC-1 | [`core/dr-sync-nextcloud/src/auth.rs:132`](../core/dr-sync-nextcloud/src/auth.rs#L132), [`core/dr-sync-nextcloud/src/auth.rs:44`](../core/dr-sync-nextcloud/src/auth.rs#L44), [`core/dr-sync-nextcloud/src/provider.rs:1`](../core/dr-sync-nextcloud/src/provider.rs#L1), [`core/dr-sync/src/account.rs:361`](../core/dr-sync/src/account.rs#L361), [`ui/dr-ui/src/launch.rs:277`](../ui/dr-ui/src/launch.rs#L277), [`ui/dr-ui/src/launch.rs:61`](../ui/dr-ui/src/launch.rs#L61), [`ui/dr-ui/src/launch_ui.rs:417`](../ui/dr-ui/src/launch_ui.rs#L417) |
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| FR-NC-10 | [`core/dr-sync/src/account.rs:226`](../core/dr-sync/src/account.rs#L226), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:674`](../ui/dr-ui/src/lib.rs#L674), [`ui/dr-ui/src/library.rs:1170`](../ui/dr-ui/src/library.rs#L1170), [`ui/dr-ui/src/library.rs:2463`](../ui/dr-ui/src/library.rs#L2463), [`ui/dr-ui/src/library.rs:589`](../ui/dr-ui/src/library.rs#L589), [`ui/dr-ui/src/library.rs:916`](../ui/dr-ui/src/library.rs#L916), [`ui/dr-ui/src/library_ui.rs:2062`](../ui/dr-ui/src/library_ui.rs#L2062), [`ui/dr-ui/src/library_ui.rs:4275`](../ui/dr-ui/src/library_ui.rs#L4275), [`ui/dr-ui/src/library_ui.rs:660`](../ui/dr-ui/src/library_ui.rs#L660), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
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| FR-NC-12 | [`core/dr-sync-folder/src/lib.rs:1`](../core/dr-sync-folder/src/lib.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:1022`](../core/dr-sync-nextcloud/src/lib.rs#L1022), [`core/dr-sync-nextcloud/src/lib.rs:40`](../core/dr-sync-nextcloud/src/lib.rs#L40), [`core/dr-sync-nextcloud/src/provider.rs:1`](../core/dr-sync-nextcloud/src/provider.rs#L1), [`core/dr-sync/src/account.rs:1`](../core/dr-sync/src/account.rs#L1), [`core/dr-sync/src/account.rs:87`](../core/dr-sync/src/account.rs#L87), [`core/dr-sync/src/lib.rs:218`](../core/dr-sync/src/lib.rs#L218), [`core/dr-sync/src/lib.rs:51`](../core/dr-sync/src/lib.rs#L51), [`core/dr-sync/src/provider.rs:106`](../core/dr-sync/src/provider.rs#L106), [`core/dr-sync/src/provider.rs:1`](../core/dr-sync/src/provider.rs#L1), [`core/dr-sync/src/provider.rs:53`](../core/dr-sync/src/provider.rs#L53), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`ui/dr-ui/src/remote.rs:1`](../ui/dr-ui/src/remote.rs#L1) |
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@@ -209,7 +210,7 @@ Defined in `requirements.md` and marked `(post-v1)` on the defining line. Not in
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## Not yet tagged
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41 of 184 requirements have no implementation tag. Expected while the codebase is young; each should gain one as it is built.
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40 of 184 requirements have no implementation tag. Expected while the codebase is young; each should gain one as it is built.
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<details><summary>Show untagged requirements</summary>
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@@ -229,7 +230,6 @@ Defined in `requirements.md` and marked `(post-v1)` on the defining line. Not in
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- FR-MRG-5
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- FR-MRG-6
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- FR-MRG-7
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- FR-MRG-8
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- FR-MRG-9
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- FR-NC-11
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- FR-PLAT-AND-1
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