Book Image

Hands-On GPU-Accelerated Computer Vision with OpenCV and CUDA

By : Bhaumik Vaidya
Book Image

Hands-On GPU-Accelerated Computer Vision with OpenCV and CUDA

By: Bhaumik Vaidya

Overview of this book

Computer vision has been revolutionizing a wide range of industries, and OpenCV is the most widely chosen tool for computer vision with its ability to work in multiple programming languages. Nowadays, in computer vision, there is a need to process large images in real time, which is difficult to handle for OpenCV on its own. This is where CUDA comes into the picture, allowing OpenCV to leverage powerful NVDIA GPUs. This book provides a detailed overview of integrating OpenCV with CUDA for practical applications. To start with, you’ll understand GPU programming with CUDA, an essential aspect for computer vision developers who have never worked with GPUs. You’ll then move on to exploring OpenCV acceleration with GPUs and CUDA by walking through some practical examples. Once you have got to grips with the core concepts, you’ll familiarize yourself with deploying OpenCV applications on NVIDIA Jetson TX1, which is popular for computer vision and deep learning applications. The last chapters of the book explain PyCUDA, a Python library that leverages the power of CUDA and GPUs for accelerations and can be used by computer vision developers who use OpenCV with Python. By the end of this book, you’ll have enhanced computer vision applications with the help of this book's hands-on approach.
Table of Contents (15 chapters)

Chapter 9

  1. The global memory for the GPU device on Jetson TX1 is around 4 GB with a GPU clock speed of around 1 GHz. This clock speed is slower than Geforce 940 GPU used earlier in this book. The memory clock speed is only 13 MHz compared to 2.505 GHz on Geforce 940, which makes Jetson TX1 slower. The L2 cache is 256 KB compared to 1 MB on Geforce 940. Most of the other properties are similar to GeForce 940.
  2. True
  3. In the latest Jetpack, OpenCV is not compiled with CUDA support nor does it have GStreamer support, which is needed for accessing the camera from the code. So, it is a good idea to remove OpenCV installation that comes with Jetpack and compile the new version of OpenCV with CUGA and GStreamer support.
  4. False. OpenCV can capture video from both USB and CSI camera connected to Jetson TX1 board.
  5. True. CSI camera is more close to hardware so frames are read quickly than USB...