Files
rUv d42c5581f3 feat(rufield): ultrasonic as the field surface's second modality (#1716)
ADR-262 §8 question 5 left the second modality open, asking whether it should
be rvcsi. This answers ultrasonic instead, because the cost collapsed:
rufield-adapters now ships UltrasonicReplayAdapter, the first adapter for
Modality::Ultrasonic (registry code 7, empty since v0.1), which parses,
validates and signs BatVu range profiles upstream. RuView only has to decide
what it will put on a wire.

Bumps vendor/rufield 43b1df3 -> 9955672. Two struct literals in bridge.rs gain
fields added upstream (Observation: track_id, attributes, identity_evidence,
channel_sounding_provenance; SensorDescriptor: coordinate_frame, position_m,
orientation_xyzw). All left empty, each for a stated reason rather than a
convenient default — the pose fields in particular, because a CSI link has no
boresight and §6 makes no validated room-coordinate claim. The nine existing
P1 gates pass unchanged.

The decision this module makes is structural rather than a runtime refusal.
The adapter's full per-bin frame is P0 and would be dropped by the egress gate
after all the work of parsing and signing it; its 32-bin coarse reduction is
P1 and egress-safe. So the module does not offer the choice — it configures
the coarse mode, because a consumer cannot un-coarsen a coarse profile whereas
a check can be reordered. The gate still runs and is asserted to drop nothing.

12 gates in tests/ultrasonic_gates.rs, including the honest negative result: an
ultrasonic scan produces no fused inferences at all, and both independent
reasons are pinned. The adapter declines to populate `presence` — one
transducer pair cannot distinguish a person from a coat over the back of a
chair — and the engine's feature vocabulary is entirely statements about a
body, so range_m has nothing to drive.

The fixture is BatVu's own emitter output, byte-identical to the one in
ruvnet/rufield, so schema drift fails a build in one of three repositories
rather than an ingest in a deployment.

Not wired into the running server; P1 shipped as a library before P3 wired it
in, and this follows the same staging.
2026-08-25 21:40:53 -04:00
..

WiFi-DensePose Rust Crates

License: MIT OR Apache-2.0 Rust 1.85+ Workspace RuVector v2.0.4 Tests

See through walls with WiFi. No cameras. No wearables. Just radio waves.

A modular Rust workspace for WiFi-based human pose estimation, vital sign monitoring, and disaster response using Channel State Information (CSI). Built on RuVector graph algorithms and the WiFi-DensePose research platform by rUv.


Performance

Operation Python v1 Rust v2 Speedup
CSI Preprocessing ~5 ms 5.19 us ~1000x
Phase Sanitization ~3 ms 3.84 us ~780x
Feature Extraction ~8 ms 9.03 us ~890x
Motion Detection ~1 ms 186 ns ~5400x
Full Pipeline ~15 ms 18.47 us ~810x
Vital Signs N/A 86 us (11,665 fps) --

Crate Overview

Core Foundation

Crate Description crates.io
wifi-densepose-core Types, traits, and utilities (CsiFrame, PoseEstimate, SignalProcessor) crates.io
wifi-densepose-config Configuration management (env, TOML, YAML) crates.io
wifi-densepose-db Database persistence (PostgreSQL, SQLite, Redis) crates.io

Signal Processing & Sensing

Crate Description RuVector Integration crates.io
wifi-densepose-signal SOTA CSI signal processing (6 algorithms from SpotFi, FarSense, Widar 3.0) ruvector-mincut, ruvector-attn-mincut, ruvector-attention, ruvector-solver crates.io
wifi-densepose-vitals Vital sign extraction: breathing (6-30 BPM) and heart rate (40-120 BPM) -- crates.io
wifi-densepose-wifiscan Multi-BSSID WiFi scanning for Windows-enhanced sensing -- crates.io

Neural Network & Training

Crate Description RuVector Integration crates.io
wifi-densepose-nn Multi-backend inference (ONNX, PyTorch, Candle) with DensePose head (24 body parts) -- crates.io
wifi-densepose-train Training pipeline with MM-Fi dataset, 114->56 subcarrier interpolation All 5 crates crates.io

Disaster Response

Crate Description RuVector Integration crates.io
wifi-densepose-mat Mass Casualty Assessment Tool -- survivor detection, triage, multi-AP localization ruvector-solver, ruvector-temporal-tensor crates.io

Hardware & Deployment

Crate Description crates.io
wifi-densepose-hardware ESP32, Intel 5300, Atheros CSI sensor interfaces (pure Rust, no FFI) crates.io
wifi-densepose-wasm WebAssembly bindings for browser-based disaster dashboard crates.io
wifi-densepose-sensing-server Axum server: ESP32 UDP ingestion, WebSocket broadcast, sensing UI crates.io

Applications

Crate Description crates.io
wifi-densepose-api REST + WebSocket API layer crates.io
wifi-densepose-cli Command-line tool for MAT disaster scanning crates.io

Architecture

                          wifi-densepose-core
                         (types, traits, errors)
                                  |
              +-------------------+-------------------+
              |                   |                   |
    wifi-densepose-signal   wifi-densepose-nn   wifi-densepose-hardware
    (CSI processing)        (inference)         (ESP32, Intel 5300)
    + ruvector-mincut       + ONNX Runtime          |
    + ruvector-attn-mincut  + PyTorch (tch)   wifi-densepose-vitals
    + ruvector-attention    + Candle          (breathing, heart rate)
    + ruvector-solver            |
              |                  |             wifi-densepose-wifiscan
              +--------+---------+            (BSSID scanning)
                       |
          +------------+------------+
          |                         |
  wifi-densepose-train    wifi-densepose-mat
  (training pipeline)     (disaster response)
  + ALL 5 ruvector        + ruvector-solver
                          + ruvector-temporal-tensor
                                |
              +-----------------+-----------------+
              |                 |                 |
    wifi-densepose-api  wifi-densepose-wasm  wifi-densepose-cli
    (REST/WS)           (browser WASM)       (CLI tool)
              |
    wifi-densepose-sensing-server
    (Axum + WebSocket)

RuVector Integration

All RuVector crates at v2.0.4 from crates.io:

RuVector Crate Used In Purpose
ruvector-mincut signal, train Dynamic min-cut for subcarrier selection & person matching
ruvector-attn-mincut signal, train Attention-weighted min-cut for antenna gating & spectrograms
ruvector-temporal-tensor train, mat Tiered temporal compression (4-10x memory reduction)
ruvector-solver signal, train, mat Sparse Neumann solver for interpolation & triangulation
ruvector-attention signal, train Scaled dot-product attention for spatial features & BVP

Signal Processing Algorithms

Six state-of-the-art algorithms implemented in wifi-densepose-signal:

Algorithm Paper Year Module
Conjugate Multiplication SpotFi (SIGCOMM) 2015 csi_ratio.rs
Hampel Filter WiGest 2015 hampel.rs
Fresnel Zone Model FarSense (MobiCom) 2019 fresnel.rs
CSI Spectrogram Standard STFT 2018+ spectrogram.rs
Subcarrier Selection WiDance (MobiCom) 2017 subcarrier_selection.rs
Body Velocity Profile Widar 3.0 (MobiSys) 2019 bvp.rs

Quick Start

As a Library

use wifi_densepose_core::{CsiFrame, CsiMetadata, SignalProcessor};
use wifi_densepose_signal::{CsiProcessor, CsiProcessorConfig};

// Configure the CSI processor
let config = CsiProcessorConfig::default();
let processor = CsiProcessor::new(config);

// Process a CSI frame
let frame = CsiFrame { /* ... */ };
let processed = processor.process(&frame)?;

Vital Sign Monitoring

use wifi_densepose_vitals::{
    CsiVitalPreprocessor, BreathingExtractor, HeartRateExtractor,
    VitalAnomalyDetector,
};

let mut preprocessor = CsiVitalPreprocessor::new(56); // 56 subcarriers
let mut breathing = BreathingExtractor::new(100.0);    // 100 Hz sample rate
let mut heartrate = HeartRateExtractor::new(100.0);

// Feed CSI frames and extract vitals
for frame in csi_stream {
    let residuals = preprocessor.update(&frame.amplitudes);
    if let Some(bpm) = breathing.push_residuals(&residuals) {
        println!("Breathing: {:.1} BPM", bpm);
    }
}

Disaster Response (MAT)

use wifi_densepose_mat::{DisasterResponse, DisasterConfig, DisasterType};

let config = DisasterConfig {
    disaster_type: DisasterType::Earthquake,
    max_scan_zones: 16,
    ..Default::default()
};

let mut responder = DisasterResponse::new(config);
responder.add_scan_zone(zone)?;
responder.start_continuous_scan().await?;

Hardware (ESP32)

use wifi_densepose_hardware::{Esp32CsiParser, CsiFrame};

let parser = Esp32CsiParser::new();
let raw_bytes: &[u8] = /* UDP packet from ESP32 */;
let frame: CsiFrame = parser.parse(raw_bytes)?;
println!("RSSI: {} dBm, {} subcarriers", frame.metadata.rssi, frame.subcarriers.len());

Training

# Check training crate (no GPU needed)
cargo check -p wifi-densepose-train --no-default-features

# Run training with GPU (requires tch/libtorch)
cargo run -p wifi-densepose-train --features tch-backend --bin train -- \
    --config training.toml --dataset /path/to/mmfi

# Verify deterministic training proof
cargo run -p wifi-densepose-train --features tch-backend --bin verify-training

Building

# Clone the repository
git clone https://github.com/ruvnet/wifi-densepose.git
cd wifi-densepose/v2

# Check workspace (no GPU dependencies)
cargo check --workspace --no-default-features

# Run all tests
cargo test --workspace --no-default-features

# Build release
cargo build --release --workspace

Feature Flags

Crate Feature Description
wifi-densepose-nn onnx (default) ONNX Runtime backend
wifi-densepose-nn tch-backend PyTorch (libtorch) backend
wifi-densepose-nn candle-backend Candle (pure Rust) backend
wifi-densepose-nn cuda CUDA GPU acceleration
wifi-densepose-train tch-backend Enable GPU training modules
wifi-densepose-mat ruvector (default) RuVector graph algorithms
wifi-densepose-mat api (default) REST + WebSocket API
wifi-densepose-mat distributed Multi-node coordination
wifi-densepose-mat drone Drone-mounted scanning
wifi-densepose-hardware esp32 ESP32 protocol support
wifi-densepose-hardware intel5300 Intel 5300 CSI Tool
wifi-densepose-hardware linux-wifi Linux commodity WiFi
wifi-densepose-wifiscan wlanapi Windows WLAN API async scanning
wifi-densepose-core serde Serialization support
wifi-densepose-core async Async trait support

Testing

# Unit tests (all crates)
cargo test --workspace --no-default-features

# Signal processing benchmarks
cargo bench -p wifi-densepose-signal

# Training benchmarks
cargo bench -p wifi-densepose-train --no-default-features

# Detection benchmarks
cargo bench -p wifi-densepose-mat

Supported Hardware

Hardware Crate Feature CSI Subcarriers Cost
ESP32-S3 Mesh (3-6 nodes) hardware/esp32 52-56 ~$54
Intel 5300 NIC hardware/intel5300 30 ~$50
Atheros AR9580 hardware/linux-wifi 56 ~$100
Any WiFi (Windows/Linux) wifiscan RSSI-only $0

Architecture Decision Records

Key design decisions documented in docs/adr/:

ADR Title Status
ADR-014 SOTA Signal Processing Accepted
ADR-015 MM-Fi + Wi-Pose Training Datasets Accepted
ADR-016 RuVector Training Pipeline Accepted (Complete)
ADR-017 RuVector Signal + MAT Integration Accepted
ADR-021 Vital Sign Detection Pipeline Accepted
ADR-022 Windows WiFi Enhanced Sensing Accepted
ADR-024 Contrastive CSI Embedding Model Accepted
  • WiFi-DensePose -- Main repository (Python v1 + Rust v2)
  • RuVector -- Graph algorithms for neural networks (5 crates, v2.0.4)
  • rUv -- Creator and maintainer

License

All crates are dual-licensed under MIT OR Apache-2.0.

Copyright (c) 2024 rUv