File size: 5,033 Bytes
2ce449d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | {
"nbformat": 4,
"nbformat_minor": 0,
"metadata": {
"colab": {
"provenance": [],
"gpuType": "T4"
},
"kernelspec": {
"name": "python3",
"display_name": "Python 3"
},
"language_info": {
"name": "python"
},
"accelerator": "GPU"
},
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# SAII-CLDM Seismic Inversion Demo\n",
"\n",
"This notebook demonstrates seismic impedance inversion using SAII-CLDM (Seismic-Amplitude-Guided Iterative Inversion with Cross-Domain Latent Diffusion Model).\n",
"\n",
"**Paper:** [arXiv:2506.13529](https://arxiv.org/html/2506.13529v1)\n",
"\n",
"**Repository:** https://huggingface.co/mally-2000/saii-cldm-synthetic\n",
"\n",
"## Two Methods:\n",
"1. **SAII-LDDPM** - Latent Diffusion with Denoising Probabilistic Model (1000 steps)\n",
"2. **SAII-CLDM** - Cross-Domain Latent Diffusion Model (30 steps, faster)\n",
"\n",
"Make sure to enable GPU runtime: Runtime → Change runtime type → Hardware accelerator → GPU"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Step 1: Clone the Repository"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"!git clone https://huggingface.co/mally-2000/saii-cldm-synthetic\n",
"%cd saii-cldm-synthetic"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Step 2: Install Dependencies"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"!pip install -r requirements.txt -q"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Step 3: Run Inference\n",
"\n",
"Choose which method to run:\n",
"- `LDDPM` (default): Higher quality, slower (1000 steps)\n",
"- `CLDM`: Faster inference (30 steps)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Option A: SAII-LDDPM (Slower, Higher Quality)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"!python infer.py"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Option B: SAII-CLDM (Faster)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"!python infer.py CLDM"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Step 4: Visualize Results"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from IPython.display import Image, display\n",
"import os\n",
"\n",
"# Display comparison image from LDDPM run\n",
"if os.path.exists(\"outputs/infer_LDDPM/comparison.png\"):\n",
" print(\"SAII-LDDPM Results:\")\n",
" display(Image(filename=\"outputs/infer_LDDPM/comparison.png\"))\n",
"\n",
"# Display comparison image from CLDM run\n",
"if os.path.exists(\"outputs/infer_CLDM/comparison.png\"):\n",
" print(\"\\nSAII-CLDM Results:\")\n",
" display(Image(filename=\"outputs/infer_CLDM/comparison.png\"))"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Step 5: Download Results (Optional)\n",
"\n",
"Download the output files to your local machine."
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from google.colab import files\n",
"import glob\n",
"\n",
"# Download all output files\n",
"for f in glob.glob(\"outputs/**/*\", recursive=True):\n",
" if os.path.isfile(f):\n",
" print(f\"Downloading: {f}\")\n",
" files.download(f)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Expected Results on Overthrust Sample\n",
"\n",
"| Method | Steps | PSNR | SSIM | PCC | RRE |\n",
"|---|---:|---:|---:|---:|---:|\n",
"| SAII-LDDPM | 1000 | 33.44 | 0.955 | 0.996 | 0.032 |\n",
"| SAII-CLDM | 30 | 33.13 | 0.949 | 0.995 | 0.034 |\n",
"\n",
"The comparison image shows (left to right):\n",
"1. Low-frequency impedance (initial model)\n",
"2. Seismic record (observed data)\n",
"3. Target (ground truth impedance)\n",
"4. Prediction (inverted impedance)"
]
}
]
} |