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)

Advanced Concepts in CUDA

In the last chapter, we looked at memory architecture in CUDA and saw how it can be used efficiently to accelerate applications. Up until now, we have not seen a method to measure the performance of CUDA programs. In this chapter, we will discuss how we can do that using CUDA events. The Nvidia Visual Profiler will also be discussed, as well as how to resolve errors in CUDA programs from within the CUDA code and using debugging tools. How we can improve the performance of CUDA programs will also be discussed. This chapter will describe how CUDA streams can be used for multitasking and how we can use them to accelerate applications. You will also learn how array-sorting algorithms can be accelerated using CUDA. Image processing is an application where we need to process a large amount of data in a very small amount of time, so CUDA can be an ideal choice...