Initial upload of CenterNet-R18-ONNX

.metadata.yaml

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+# PARAMETERS DELIBERATELY ABSENT. The previous ~14.4M was an estimate built by
+# adding a guessed 2-3M of keypoint heads to the ResNet18 backbone's 11.7M; no
+# published figure exists for this mmdetection config. Count it from the graph.
+
+model:
+  name: centernet-r18
+  display_name: CenterNet-R18
+  # upstream: intentionally absent — these weights have no HuggingFace repo.
+  #            See the `source` block below. Never write "TBD" here: the
+  #            generator copies it into base_model and renders it as the
+  #            model's architecture label in the catalog.
+  source:
+    kind: openmmlab
+    id: centernet_resnet18_140e_coco
+    url: https://github.com/open-mmlab/mmdetection/blob/main/configs/centernet/metafile.yml
+
+architecture:
+  family: centernet   # lineage only — no version, no size
+  backbone: resnet18
+  dataset: coco
+  num_classes: 80
+  modality:
+    - vision
+  # parameters: intentionally absent — see the note above. Fill it with the
+  #             exact count instead of an estimate:
+  #   import onnx; from onnx import numpy_helper
+  #   m = onnx.load('model.onnx')
+  #   sum(numpy_helper.to_array(t).size for t in m.graph.initializer)
+  parameters_source: unknown
+
+format:
+  type: onnx
+  # opset: read it off the graph rather than guessing —
+  #   onnx.load('model.onnx').opset_import[0].version
+  # NOTE: `version` is a GGUF-only field and must not be used for ONNX.
+
+tasks:
+  - object-detection

README.md

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+---
+license: apache-2.0
+base_model: []
+pipeline_tag: object-detection
+tags:
+- object-detection
+- computer-vision
+- renesas
+- x5h
+- onnx
+- centernet
+- resnet18
+- detection
+---
+
+# CenterNet-R18 (ONNX) – Renesas X5H
+
+> ⏳ **Model file not yet uploaded.** Benchmark results on this page were published ahead of the model weights — see **Provided Artifacts** below. Download/deployment steps will not work until the file is added to this repository.
+
+## Introduction
+
+This repository hosts **CenterNet** with a **ResNet18** backbone, targeting the **Renesas
+R-Car X5H** platform for object detection inference on the NPX6 NPU.
+
+- **Model Architecture:** CenterNet — keypoint-based, anchor-free object detector, ResNet18 backbone
+- **Source Model:** OpenMMLab config [`centernet_resnet18_140e_coco`](https://github.com/open-mmlab/mmdetection/blob/main/configs/centernet/metafile.yml)
+  *(no HuggingFace mirror of these weights; see `model.source` in `.metadata.yaml`)*
+- **Task:** Object Detection
+- **Dataset:** COCO (inferred from checkpoint name)
+- **Input Resolution:** 512 × 512 (inferred from `crop512` in the checkpoint name)
+- **Parameters:** not published — count them from the ONNX graph (`sum(numpy_helper.to_array(t).size for t in model.graph.initializer)`)
+
+## Deployment Flow
+
+The FP32 ONNX model is auto-cast to **INT8** by the Renesas MWMX toolchain at compile time — no
+separate quantization step is required.
+
+```
+centernet_r18_..._optimized.onnx (FP32)
+        │
+        └─▶  MWMX Runtime  ──▶  INT8 auto-cast  ──▶  NPX6 NPU
+```
+
+## Provided Artifacts
+
+| Artifact | Status | Notes |
+|----------|--------|-------|
+| **FP32 (ONNX)** | ⏳ Not yet uploaded | Benchmark numbers below exist; the model file has not been published to this repo yet |
+
+## Performance
+
+Measured on **Renesas R-Car X5H** via the MWMX runtime (APM80 ship-performance CI pipeline).
+
+> **Benchmark configuration:** Single NPU · Batch size: 1 · Input: 3 × 512 × 512 (inferred)
+
+| Runtime | Precision | Device | Latency (ms) | Type |
+|---------|-----------|--------|---------------|------|
+| MWMX Runtime | INT8 (auto) | X5H · 1× NPU · 1 Core · 850 MHz | 11.978 | Measured |
+| MWMX Runtime | INT8 (auto) | X5H · 1× NPU · 12 Cores · 850 MHz | 3.467 | Measured |
+
+### Accuracy
+
+TBD — not yet measured/published for this repo.
+
+---
+
+## Runtime Details
+
+### MWMX Runtime
+
+- **Engine:** Renesas MWMX (Middleware MX) native inference runtime
+- **Input format:** FP32 ONNX (compiled by the MWMX toolchain)
+- **NPU execution precision:** INT8 (auto-cast by MWMX toolchain)
+- **Execution target:** NPX6-48K NPU on R-Car X5H
+
+---
+
+## Prerequisites
+
+To run inference on Renesas R-Car X5H, you need:
+
+1. **Renesas R-Car X5H board** with NPX6 NPU
+2. **Renesas MWMX Runtime**
+3. **Hugging Face CLI** to download the model (once the model file is published)
+
+## Download
+
+TBD — model file not yet published to this repository.
+
+---
+
+## Benchmark Methodology
+
+- **HIL runs:** Hardware-in-the-loop — measured on physical R-Car X5H silicon via the MWMX
+  runtime (`metawaremx_runtime` CI pipeline, "APM80" ship-performance target)
+- **Precision:** FP32 ONNX input; INT8 execution (auto-cast by MWMX)
+- **Slices:** results reported for both 1 AI core and 12 AI cores per NPU instance

int8/.metadata.yaml

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+variant:
+  id: onnx_int8
+  format: onnx
+  precision: int8            # INT8 quantized — auto-cast by NPU execution provider at runtime
+  method: onnx_export        # base model exported to ONNX; quantization applied by runtime
+
+quantization:
+  datatype: int8
+  scope:
+    - weights
+    - activations
+  granularity: per-tensor    # typical for runtime-cast INT8
+  calibration: ptq           # post-training quantization applied by the NPU EP / MWMX toolchain
+  toolchain: onnx

int8/benchmarks/x5h_mwmx_npu_apm80_12core.yaml

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+hardware:
+  vendor: renesas
+  chip: rcar-x5h
+  cpu: arm-cortex-a720
+  npu: npx6-48k
+  npu_count: 2
+  npu_cores: 12
+  npu_default_freq_mhz: 1066
+  accelerator:
+    - npu
+
+runtime:
+  engine: mwmx
+  toolchain_version: "MWMX SDK v4.35.0"
+  format: onnx
+  execution_provider: npu
+  execution_precision: int8
+
+configuration:
+  npu_instances: 1
+  npu_cores_per_instance: 12
+  npu_freq_mhz: 850
+
+benchmark:
+  type: hil
+  parameters:
+    batch_size: 1
+    input_resolution: [1, 3, 512, 512]   # inferred from "crop512" in the source checkpoint name
+
+performance:
+  fps: null
+  latency: 3.467288        # APM80 pipeline run (metawaremx_runtime CI)
+
+metrics:
+  accuracy: null
+  top5_accuracy: null
+
+memory:
+  peak_mb: null
+
+power:
+  avg_w: null

int8/benchmarks/x5h_mwmx_npu_apm80_1core.yaml

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+hardware:
+  vendor: renesas
+  chip: rcar-x5h
+  cpu: arm-cortex-a720
+  npu: npx6-48k
+  npu_count: 2
+  npu_cores: 12
+  npu_default_freq_mhz: 1066
+  accelerator:
+    - npu
+
+runtime:
+  engine: mwmx
+  toolchain_version: "MWMX SDK v4.35.0"
+  format: onnx
+  execution_provider: npu
+  execution_precision: int8
+
+configuration:
+  npu_instances: 1
+  npu_cores_per_instance: 1
+  npu_freq_mhz: 850
+
+benchmark:
+  type: hil
+  parameters:
+    batch_size: 1
+    input_resolution: [1, 3, 512, 512]   # inferred from "crop512" in the source checkpoint name
+
+performance:
+  fps: null
+  latency: 11.978266        # APM80 pipeline run (metawaremx_runtime CI)
+
+metrics:
+  accuracy: null
+  top5_accuracy: null
+
+memory:
+  peak_mb: null
+
+power:
+  avg_w: null