Florenc Skuka
Erciyes University, Computer Engineering, Department Member
In this paper, a robust watermarking method based on modifying the DC component of the DCT coefficient is presented. A random generated key sequence is embedded into the DC coefficients of 8x8 blocks with a scaling factor. Effect of the... more
In this paper, a robust watermarking method based on modifying the DC component of the DCT coefficient is presented. A random generated key sequence is embedded into the DC coefficients of 8x8 blocks with a scaling factor. Effect of the scaling factor
under several attacks is evaluated. Experiments show that the method is robust without losing the transparency.
under several attacks is evaluated. Experiments show that the method is robust without losing the transparency.
In this paper segmentation of planes in point cloud data generated by Microsoft Kinect is detected by using RANSAC method. Two experimental data are acquired by OpenNI and OpenCV library. Kinect camera is first calibrated and the holes in... more
In this paper segmentation of planes in point cloud data generated by Microsoft Kinect is detected by using RANSAC method. Two experimental data are acquired by OpenNI and OpenCV library. Kinect camera is first calibrated and the holes in the acquired data are filled. Then, the data is filtered, downsampled and segmented via Point Cloud Library (PCL). Distance threshold and normal weighted distance parameters of RANSAC algorithm are evaluated in the experiments.