final_v2e_command gives error about v2e HOT 7 CLOSED

What is the command? It sounds like output size is not set. You can use --dvs346 for example to output Davis346 346x260 output.

Thanks. The user guide is the README.md https://github.com/SensorsINI/v2e/blob/master/README.md and of course the v2e paper which describes the model. But looking at the parameters, I think we could stand to slightly reorganize them. The /output_width/ and /output_height/ are not really DVS model parameters. They are more like output options for determining the number of pixels we simulate and also the AER data format for supported sensors. I will take a look once again at these options to see how to group them better. In practice, for a paper like our CSDVS paper https://sites.google.com/view/csdvs/home we used a shell script with the key parameters set from the bash script, e.g. #!/bin/bash # scripts to reproduce results in 2022 CSDVS ICIP paper Special session 20.11 ‘Neuromorphic and perception-based image acquisition and analysis” # UTILITY AND FEASIBILITY OF A CENTER SURROUND EVENT CAMERA # spots # parame for CSDVS lambda=10 tau=.5 dt=.0001 seq=spots contrast=2 thr=.2 sig_thr=0.02 cutoff=100 refr=1e-3 exp="duration .01" #v2e --output_folder=output/$seq-dvs --pos_thr=$thr --neg_thr=$thr --sigma_thr=$sig_thr --cutoff_hz=$cutoff --refractory_period=$refr --leak_rate_hz=0 --shot_noise_rate_hz=0  --vid_orig=inten --dvs_vid=dvs --unique_output --dvs_aedat2=dvs --output_width=346 --output_height=260 --batch=1 --disable_slomo --synthetic_input=scripts.spots --dt=$dt --freq=20 --contrast=$contrast --dvs_exposure $exp --shot_noise_rate_hz=1 --show_dvs_model_state all --save_dvs_model_state #v2e --output_folder=output/$seq-csdvs-l$lambda-t$tau --cs_lambda_pixels=$lambda --cs_tau_p_ms=$tau  --pos_thr=$thr --neg_thr=$thr --sigma_thr=$sig_thr --cutoff_hz=$cutoff --refractory_period=$refr --leak_rate_hz=0 --shot_noise_rate_hz=0  --vid_orig=inten --dvs_vid=csdvs --unique_output --dvs_aedat2=csdvs --output_width=346 --output_height=260 --batch=1 --disable_slomo --synthetic_input=scripts.spots --dt=$dt --freq=20 --contrast=$contrast --dvs_exposure $exp --shot_noise_rate_hz=1 --show_dvs_model_state all --save_dvs_model_state # gradients seq=gradients #v2e  --output_folder output/$seq-dvs --pos_thr=$thr --neg_thr=$thr --sigma_thr=$sig_thr --cutoff_hz=$cutoff --refractory_period=$refr --leak_rate_hz=0 --shot_noise_rate_hz=0  --vid_orig=inten --dvs_vid=dvs --unique_output --dvs_aedat2=dvs --output_width=346 --output_height=260 --batch=1 --disable_slomo --dt=$dt --contrast=$contrast --dvs_exposure $exp --shot_noise_rate_hz=1 --show_dvs_model_state all --save_dvs_model_state --synthetic_input=scripts.gradients #v2e  --output_folder output/$seq-csdvs --cs_lambda_pixels=$lambda --cs_tau_p_ms=$tau --pos_thr=$thr --neg_thr=$thr --sigma_thr=$sig_thr --cutoff_hz=$cutoff --refractory_period=$refr --leak_rate_hz=0 --shot_noise_rate_hz=0  --vid_orig=inten --dvs_vid=dvs --unique_output --dvs_aedat2=dvs --output_width=346 --output_height=260 --batch=1 --disable_slomo --dt=$dt --contrast=$contrast --dvs_exposure $exp --shot_noise_rate_hz=1 --show_dvs_model_state all --save_dvs_model_state --synthetic_input=scripts.gradients # cloudy sky seq=cloudy-sky input=input/CloudySky_Slomo.mp4 lambda=10 tau=2 slomo=33 #v2e --output_folder=output/$seq-dvs --input=$input --input_slowmotion_factor=$slomo --disable_slomo  --pos_thr=$thr --neg_thr=$thr --sigma_thr=$sig_thr --cutoff_hz=$cutoff --refractory_period=$refr --leak_rate_hz=0 --vid_orig=inten --dvs_vid=dvs --unique_output --dvs_aedat2=dvs --dvs346 --dvs_exposure=source #v2e --cs_lambda_pixels=$lambda --cs_tau_p_ms=$tau --output_folder=output/$seq-csdvs --input=$input --input_slowmotion_factor=$slomo --disable_slomo  --pos_thr=$thr --neg_thr=$thr --sigma_thr=$sig_thr --cutoff_hz=$cutoff --refractory_period=$refr --cutoff_hz=100 --leak_rate_hz=0 --vid_orig=inten --dvs_vid=csdvs --unique_output --dvs_aedat2=csdvs --dvs346  --dvs_exposure=source

Thanks to your debugging I now updated the arguments for v2e on the master branch to correctly show the camera size options and renamed the --davis_output to --ddd_output. The colab scripts should be updated to change davis_output to ddd_output next otherwise we will get errors. Note that all output size options are now in one argparse help group now;  hopefully this change will make things more clear. I will try to push a change to the colab scripts if I can figure out how to update them. Maybe Yuhuang can help. Tobi