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四类检测（交通）

四类检测（交通）1、视频检测2、实时检测2.1、USB摄像头2.2、CSI摄像头

四类检测是DeepStream自带的案例演示：对画面中的人、车、路标、自行车进行检测和计数。

教程只进行基础的演示，其它应用需要用户自行开发

1、视频检测​

进入案例所在文件夹：

x cd /opt/nvidia/deepstream/deepstream-7.1/sources/apps/sample_apps/deepstream-test1

编译源码：参考同文件夹下的README

x sudo make CUDA_VER=12.6 # 出厂镜像编译过，无需用户编译

运行案例：参考同文件夹下的dstest1_config.yml

x ./deepstream-test1-app dstest1_config.yml 或者 ./deepstream-test1-app ../../../../samples/streams/sample_720p.h264

image-20250102191922399

配置文件：dstest1_config.yml

​ x ################################################################################ # SPDX-FileCopyrightText: Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved. # SPDX-License-Identifier: LicenseRef-NvidiaProprietary # # NVIDIA CORPORATION, its affiliates and licensors retain all intellectual # property and proprietary rights in and to this material, related # documentation and any modifications thereto. Any use, reproduction, # disclosure or distribution of this material and related documentation # without an express license agreement from NVIDIA CORPORATION or # its affiliates is strictly prohibited. ################################################################################ source: location: ../../../../samples/streams/sample_720p.h264 streammux: batch-size: 1 batched-push-timeout: 40000 width: 1920 height: 1080 # Inference using nvinfer: primary-gie: plugin-type: 0 config-file-path: dstest1_pgie_config.yml ## Inference using nvinferserver: #primary-gie: # plugin-type: 1 # config-file-path: dstest1_pgie_nvinferserver_config.txt

2、实时检测​

若多个摄像头，自行修改.txt配置文件：以下案例都是主板只接一个摄像头运行时的效果。

2.1、USB摄像头​

x cd /opt/nvidia/deepstream/deepstream-7.1/samples/configs/deepstream-app x deepstream-app -c source1_usb_dec_infer_resnet_int8.txt

image-20250102203840338

2.2、CSI摄像头​

x cd /opt/nvidia/deepstream/deepstream-7.1/samples/configs/deepstream-app x deepstream-app -c source1_csi_dec_infer_resnet_int8.txt

image-20250102202305616