opencv - CL_INVALID_COMMAND_QUEUE opencl

Question

我正在研究在opencv中对某些图像应用meanshift的项目，经过四到五次尝试后，我收到此错误，我尝试了诸如关闭配置之类的操作，等等，但是它们都不起作用。任何帮助感激它。我的opencv 2.4.9和我的图形购物车是NVIDIA GeForce 310。

OpenCV Error: Gpu API call (CL_INVALID_COMMAND_QUEUE) in openCLMemcpy2D, file /tmp/buildd/ros-hydro-opencv2-2.4.9-2precise-20140617-1410/modules/ocl/src/cl_operations.cpp, line 227
[ERROR] [1405642960.704963701]: Exception thrown while processing service call: /tmp/buildd/ros-hydro-opencv2-2.4.9-2precise-20140617-1410/modules/ocl/src/cl_operations.cpp:227: error: (-217) CL_INVALID_COMMAND_QUEUE in function openCLMemcpy2D

[ERROR] [1405642960.705466283]: Service call failed: service [/jur_segmentation_interaction] responded with an error: /tmp/buildd/ros-hydro-opencv2-2.4.9-2precise-20140617-1410/modules/ocl/src/cl_operations.cpp:227: error: (-217) CL_INVALID_COMMAND_QUEUE in function openCLMemcpy2D

=================>代码

/// Applying MeanShift
cv::ocl::oclMat ocl_image;
cv::Mat res_mean;

// Converting to CV_8UC4
cv::Mat _img_conv;
cvtColor( _img , _img_conv , CV_BGR2BGRA );

ocl_image.upload(_img_conv.clone());

cv::ocl::meanShiftSegmentation( ocl_image.clone() , res_mean , _sp , _sr , _mean_size );
//cv::ocl::finish();

====================> opencl配置:

cv::ocl::DevicesInfo dev_info;
cv::ocl::getOpenCLDevices( dev_info );

/// Platform Info
cv::ocl::PlatformsInfo plat_info;
cv::ocl::getOpenCLPlatforms( plat_info );

cv::ocl::setDevice( dev_info[0] );

Answer 1

有时在单独的线程中调用代码时发生。