- Same problem on System:
- Ubuntu 14.04 arm
- Opencv 2.4.9
- ROS Indigo
ROS qbo_listen 编译问题
结论：在ubuntu12.04中直接安装libjulius这个deb就会生成libsent.a文件，这个已经可以用以连接了。
而使用julius源码安装的libsent.a位于/usr/local/lib/libsent.a，这个库文件缺少sf_open等函数的定义。此时还未搞清楚如何能将它编译出来。./configure make install的方式是不行的。最终使用 deb安装包的方法，成功编译成功了qbo_listen.
ROS qbo_object_recognition 编译问题
1. SurfFeatureDetector type-specifier问题 If you’re using opencv 2.4, SURF and SIFT interfaces are changed to nonfree folder. You can use it by including this line
#include <opencv2/nonfree/features2d.hpp>
then you can use SurfFeatureDetector as before.
Linking CXX executable ../bin/orbit_client
/usr/local/lib/libopencv_nonfree.so.2.4.9: undefined reference to `cv::ocl::integral(cv::ocl::oclMat const&, cv::ocl::oclMat&)'
collect2: error: ld returned 1 exit status
I fixed it.
I needed to turn off the CUDA/OpenCL components of opencv. So instead of running Cmake like this:
cmake -D WITH_CUDA=ON -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr .
I ran it like this:
cmake -D CMAKE_BUILD_TYPE=RELEASE -D WITH_OPENCL=OFF -D CMAKE_INSTALL_PREFIX=/usr/local .
And everything compiled just fine!
折腾一天的问题，SurfFeatureDetector type-specifier问题解决了。需要在cv.h中添加include “opencv2/nonfree/features2d.hpp。
from poster.encode import multipart_encode
ImportError: No module named poster.encode
sudo apt-get install Python-poster
sudo apt-get install python-xmmsclient
sudo apt-get install python-pam python调用pam模块进行Linux用户验证
sudo apt-get install xmms2 音乐播放器。没有的话，就报错。
安装abo_questions