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)

Questions

  1. Which programming language is used to define the kernel function using the SourceModule class in PyCUDA? Which compiler will be used to compile this kernel function?
  2. Write a kernel call function for the myfirst_kernel function used in this chapter, with the number of blocks equal to 1024 x 1024 and threads per block equal to 512 x 512.
  3. State true or false: The block execution inside PyCUDA program is in sequential order.
  4. What is the advantage of using the In, Out ,and inout driver class primitives in PyCUDA programs?
  5. Write a PyCUDA program to add two to every element of a vector with an arbitrary size using the gpuarray class.
  6. What is the advantage of using CUDA events to measure the time for a kernel execution?
  7. State true or false: The gpuarray class is the GPU device version of the numpy library in Python.