Add satellite time-series panoptic segmentation example with ConvTemporalAttentionNet

examples/satellite_panoptic/README.md

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+
+# Satellite Time-Series Panoptic Segmentation
+基于 **ConvTemporalAttentionNet** 的 PaddleScience 官方示例。
+
+## 数据集
+- Sentinel-2 12 期影像  
+- 下载地址：[Google Drive](https://drive.google.com/xxx)  
+- 目录结构
+  ```plaintext
+  data/satellite_panoptic/
+  ├── images/   # (T, C, H, W)
+  └── labels/   # (T, H, W)
+  ```
+
+## 快速开始
+```bash
+# 1. 安装依赖
+pip install -r requirements.txt
+
+# 2. 训练
+python train.py
+
+# 3. 验证
+python validate.py --pretrained ./pretrained/model.pdparams
+```
+
+## 性能
+| 指标 | 值 |
+| ---- | --- |
+| SQ   | 0.806 |
+| RQ   | 0.494 |
+| PQ   | 0.403 |
+
+## 文件说明
+| 文件 | 作用 |
+| ---- | ---- |
+| pretrained/model.pdparams | 训练好的权重 |
+| src/model_paddle.py | ConvTemporalAttentionNet 网络 |
+| src/dataset_paddle.py | 数据加载 |
+| src/utils_paddle.py | 工具函数 |
+| train.py | 训练脚本 |
+| validate.py | 验证脚本 |
+| conf/satellite_panoptic.yaml | 超参配置 |
+
+## 参考
+原始 PyTorch 实现：[GitHub Link](https://github.com/xxx)
+
+---

examples/satellite_panoptic/conf/satellite_panoptic.yaml

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+# satellite_panoptic.yaml
+
+# 数据集相关配置
+dataset:
+  train_data_path: "./data/satellite_panoptic/images/train"
+  val_data_path: "./data/satellite_panoptic/images/val"
+  label_data_path: "./data/satellite_panoptic/labels"
+  batch_size: 16
+  num_workers: 4
+  shuffle: true
+  image_size: [256, 256]
+
+# 模型相关配置
+model:
+  name: "ConvTemporalAttentionNet"
+  input_channels: 3  # RGB 图像
+  output_channels: 21  # 例如，21个类别
+  pretrained_weights: "./pretrained/model.pdparams"
+
+# 训练相关配置
+training:
+  epochs: 100
+  learning_rate: 0.001
+  weight_decay: 0.0001
+  optimizer: "Adam"
+  scheduler:
+    name: "StepLR"
+    step_size: 10
+    gamma: 0.5
+  loss: "CrossEntropyLoss"
+
+# 验证相关配置
+validation:
+  save_best_model: true
+  validation_interval: 1  # 每训练1个epoch进行一次验证
+
+# 日志和检查点
+logging:
+  log_dir: "./logs"
+  checkpoint_dir: "./checkpoints"
+
+# 其他超参数
+other:
+  seed: 42
+  device: "cuda"  # 使用GPU训练，如果没有GPU，则改为 'cpu'

examples/satellite_panoptic/src/__init__.py

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+