diff --git a/pybot/README.md b/pybot/README.md
index 5bc5664..b907232 100644
--- a/pybot/README.md
+++ b/pybot/README.md
@@ -62,7 +62,7 @@ venv/bin/python -m pytest tests/ -v
 ```
 @Camera
  name  width  height  framerate  capacity;
- cam0    640      480        30         4;
+ cam0    1920     1080       30         4;
 @
 ```
 
diff --git a/pybot/pybot/hd/camera.py b/pybot/pybot/hd/camera.py
index d8b5287..cb63569 100644
--- a/pybot/pybot/hd/camera.py
+++ b/pybot/pybot/hd/camera.py
@@ -27,7 +27,7 @@ class Camera:
     grabber: 可注入的抓帧回调（测试用），None = 用 picamera2 抓帧。
     """
 
-    def __init__(self, width=640, height=480, framerate=30.0, capacity=4,
+    def __init__(self, width=1920, height=1080, framerate=30.0, capacity=4,
                  grabber=None, dry_run=False):
         self.width = width
         self.height = height