I am trying to remove lens distortion from the input image in the Deepstream app. In OpenCV, this can be done using the undistort function with a matrix and distortion coefficients, but I haven’t been able to find a standard implementation of this in Deepstream. My Jetson device comes with OpenCV in…

Could you add the patch in the open source code and try to see if the performance is improved in your env? --- sources\gst-plugins\gst-nvdewarper\nvdewarper.cpp *************** *** 41,46 **** --- 41,47 ---- #include "cudaEGL.h" #endif + #define USE_CUDA_STREAM /* Dewarper #defines */ …

Please refer to Dewarp Deepstream 6 - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums for the gst-nvdewarper mapping to opencv camera calibration.

Thank you very much. I am now able to use the deepstream-dewarper-app to undistord a video file. Is there an easy way to integrate the dewarper into the deepstream-app? Something like this in the deepstream_app_config.txt: [dewarper] enable=1 config-file=config_dewarper.txt gpu-id=0 source-…

I have installed deepstream-6.0 and can not find the file: …/deepstream_app_config_parser_yaml.cpp Any advice?

Please provide complete information as applicable to your setup. • Hardware Platform (Jetson / GPU) • DeepStream Version • JetPack Version (valid for Jetson only) • TensorRT Version • NVIDIA GPU Driver Version (valid for GPU only)

[image] deveso: I have installed deepstream-6.0 and can not find the file: …/deepstream_app_config_parser_yaml.cpp If there is no deepstream_app_config_parser_yaml.cpp, you don’t need to modify it.

I switched to Deepstream 6.2 and Orin NX. The implementation worked perfectly as described by yuweiw. Thanks for the hint. However, I have a performance problem. Without dewarper I get about 50fps. With the dewarper activated it is only 38fps. Does the plugin run on the GPU? It’s quite a bottelneck …

I’m still looking for a solution. Can someone help me?

Can you share your nvdewarper configuration file? What command line or app have you run for your case? Can you share us how to reproduce your case?

I have added the dewarper with: How to remove lens distortion from input images in Deepstream? - #5 by Fiona.Chen Run clocks.sh: VPI - Vision Programming Interface: Performance Benchmark cd /opt/nvidia/deepstream/deepstream-6.2/sources/objectDetector_Yolo/ sudo deepstream-app -c deepstream_app_co…

How to remove lens distortion from input images in Deepstream?

Accelerated Computing Intelligent Video Analytics DeepStream SDK

Fiona.Chen February 27, 2023, 1:54am 5

No, currently the nvdswarper related code is not added in the deepstream-app source code, you may need to add by yourself. DeepStream SDK FAQ - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums

Topic		Replies	Views
How to remove camera distortion with camera instead of video DeepStream SDK	18	1634	July 14, 2023
Remove distortion by deepstream-app DeepStream SDK	7	1876	June 8, 2021
Performace issues with dewarper DeepStream SDK nvbugs	7	498	February 19, 2024
Undistort camera input (non 360°) DeepStream SDK	6	3172	January 10, 2020
How to perform fish-eye lens distortion correction in gstreamer pipeline? (Hfov ~150) Jetson AGX Xavier opencv	28	13187	August 11, 2021
Dewarp Deepstream 6 DeepStream SDK	3	1292	August 25, 2022
How to add nvdewarper in deepstream_app DeepStream SDK	2	694	May 21, 2021
Need help in writing "config_dewarper_perspective.txt" in the correct format DeepStream SDK jetson-inference , deepstream	3	631	June 13, 2023
Can nvdewarper do normal camera undistortion in DS 5? DeepStream SDK camera , gstreamer	2	781	October 23, 2020
Resource help for learning to change the dsexample DeepStream SDK	2	115	August 9, 2024

How to remove lens distortion from input images in Deepstream?

Related topics