Simple Tutorial is not working

[dokodoko123]

I am currently trying to run the stella_vslam Simple Tutorial using SocketViewer. I am following the documentation provided here, but it is not working correctly. Specifically, when I run the command ./run_video_slam -v ./orb_vocab.fbow -m ./aist_living_lab_1/video.mp4 -c ~/lib/stella_vslam/example/aist/equirectangular.yaml --frame-skip 3 --no-sleep --map-db-out map.msg, it produces the following output and then stops functioning:

Additionally, the frame viewer and map viewer do not launch. I am unsure of the cause, so if anyone can help, I would appreciate it.

---

[2024-05-20 17:20:11.339] [I] config file loaded: ~/lib/stella_vslam/example/aist/equirectangular.yaml
--start-timestamp is not set. using system timestamp.
[2024-05-20 17:20:11.340] [I]
original version of OpenVSLAM,
Copyright (C) 2019,
National Institute of Advanced Industrial Science and Technology (AIST)
All rights reserved.
stella_vslam (the changes after forking from OpenVSLAM),
Copyright (C) 2022, stella-cv, All rights reserved.

This is free software,
and you are welcome to redistribute it under certain conditions.
See the LICENSE file.

Camera:
name: RICOH THETA S 960
setup: monocular
model: equirectangular
fps: 30.0
cols: 1920
rows: 960
color_order: RGB
Preprocessing:
min_size: 800
mask_rectangles:
- [0.0, 1.0, 0.0, 0.1]
- [0.0, 1.0, 0.84, 1.0]
- [0.0, 0.2, 0.7, 1.0]
- [0.8, 1.0, 0.7, 1.0]
Feature:
name: default ORB feature extraction setting
scale_factor: 1.2
num_levels: 8
ini_fast_threshold: 20
min_fast_threshold: 7
Mapping:
backend: g2o
baseline_dist_thr_ratio: 0.02
redundant_obs_ratio_thr: 0.95
num_covisibilities_for_landmark_generation: 20
num_covisibilities_for_landmark_fusion: 20
residual_deg_thr: 0.4
Tracking:
backend: g2o
LoopDetector:
backend: g2o
enabled: true
reject_by_graph_distance: true
min_distance_on_graph: 50
GraphOptimizer:
min_num_shared_lms: 200
GlobalOptimizer:
thr_neighbor_keyframes: 100
System:
map_format: msgpack
num_grid_cols: 96
num_grid_rows: 48

[2024-05-20 17:20:11.340] [I] loading ORB vocabulary: ./orb_vocab.fbow
[2024-05-20 17:20:11.353] [I] load orb_params "default ORB feature extraction setting"
[2024-05-20 17:20:11.353] [I] startup SLAM system
[2024-05-20 17:20:11.353] [I] start mapping module
[2024-05-20 17:20:11.353] [I] start global optimization module
[2024-05-20 17:20:11] [connect] Successful connection
[2024-05-20 17:20:11] [connect] WebSocket Connection 127.0.0.1:3000 v-2 "WebSocket++/0.8.1" /socket.io/?EIO=4&transport=websocket&t=1716193211 101
[2024-05-20 17:20:11.355] [I] connected to server
[2024-05-20 17:20:11.551] [I] initialization succeeded with E
[2024-05-20 17:20:11.554] [I] new map created with 73 points: frame 0 - frame 1
[2024-05-20 17:20:36.356] [I] connection closed correctly
[2024-05-20 17:20:36] [disconnect] Disconnect close local:[1000] remote:[1005]
[2024-05-20 17:21:01.024] [I] detect loop: keyframe 29 - keyframe 111
[2024-05-20 17:21:01.025] [I] pause mapping module
[2024-05-20 17:21:01.061] [I] resume mapping module
[2024-05-20 17:21:01.061] [I] start loop bundle adjustment
[2024-05-20 17:21:01.401] [I] finish loop bundle adjustment
[2024-05-20 17:21:01.401] [I] updating the map with pose propagation
[2024-05-20 17:21:01.405] [I] pause mapping module
[2024-05-20 17:21:01.414] [I] resume mapping module
[2024-05-20 17:21:01.414] [I] updated the map

[ymd-stella]

See https://stella-cv.readthedocs.io/en/latest/installation.html#server-setup-for-socketviewer

[dokodoko123]

Of course, that setup has been done. I can open the Viewer at localhost:3001, but nothing is displayed even after executing the above command.

[Skwangles]

Check you have added the right config for the socket_viewer - https://stella-cv.readthedocs.io/en/latest/parameters.html#socketpublisher

SocketPublisher:
  emitting_interval: 0.5
  server_uri: http://localhost:3000/
  publish_points: true

When you say 'nothing is displayed', I assume that means you can see the grid and UI, but it's just not receiving any updates?