update app file

app.py

@@ -30,9 +30,7 @@ This is an unofficial demo for [https://github.com/open-mmlab/mmdetection](https
 
 DEFAULT_MODEL_TYPE = 'detection'
 DEFAULT_MODEL_NAMES = {
-    'detection': 'YOLOX-l',
-    'instance_segmentation': 'QueryInst (R-50-FPN)',
-    'panoptic_segmentation': 'MaskFormer (R-50)',
+    'detection': 'Faster-RCNN',
 }
 DEFAULT_MODEL_NAME = DEFAULT_MODEL_NAMES[DEFAULT_MODEL_TYPE]
 
@@ -82,7 +80,7 @@ with gr.Blocks(css='style.css') as demo:
                                           label='Model Type')
                 with gr.Row():
                     model_name = gr.Dropdown(list(
-                        model.DETECTION_MODEL_DICT.keys()),
+                        'Faster R-CNN (R-50-FPN)'),
                                              value=DEFAULT_MODEL_NAME,
                                              label='Model')
             with gr.Row():