QUICK_SEQUENCE_DEMO.md

Quick Squence Demo for 3DTrans

Simliar to OpenPCDet repo, 3DTrans repo also provides a quick sequence demo to show the groundtruth or prediction results of on the custom point cloud data to visualize the continuous results.

You need to follow the INSTALL.md to install the 3DTrans repo successfully.

1. Make sure you have already installed the Open3D. If not, you could install it as follows:

   pip install open3d==0.15.2

2. Run the demo with your custom point cloud data and groundturth infos as follows:

    python show_squence_demo/demo.py --data_path ${POINT_CLOUD_DATA} --seq_id ${SEQUENCE_ID} 
    --func once or nuscenes

Here ${SEQUENCE_ID} is the sequence id of the data, such as "000076" of ONCE, or "n015-2018-07-18-11-07-57+0800" of nuScenes.
Here ${POINT_CLOUD_DATA} can be in any of the following format:
ONCE:

                                           
├──once_data                                                                       
│   │── XXX(squence_id)                                            
│   │   │── XXX(squence_id).json                                        
│   │   │── lidar_roof   
│   │   │   │── *.bin  

nuScenes:

├──nuscenes_data                                                           
│   ├── nuscenes_infos_10sweeps_train.pkl                                          
│   ├── samples                                    
│   │   ├── LIDAR_TOP                                     
│   │   │   │── *.pcd.bin

Then you could see the groundtruth results with visualized point cloud as follows: