Book Image

Hands-On Java Deep Learning for Computer Vision

By : Klevis Ramo
Book Image

Hands-On Java Deep Learning for Computer Vision

By: Klevis Ramo

Overview of this book

Although machine learning is an exciting world to explore, you may feel confused by all of its theoretical aspects. As a Java developer, you will be used to telling the computer exactly what to do, instead of being shown how data is generated; this causes many developers to struggle to adapt to machine learning. The goal of this book is to walk you through the process of efficiently training machine learning and deep learning models for Computer Vision using the most up-to-date techniques. The book is designed to familiarize you with neural networks, enabling you to train them efficiently, customize existing state-of-the-art architectures, build real-world Java applications, and get great results in a short space of time. You will build real-world Computer Vision applications, ranging from a simple Java handwritten digit recognition model to real-time Java autonomous car driving systems and face recognition models. By the end of this book, you will have mastered the best practices and modern techniques needed to build advanced Computer Vision Java applications and achieve production-grade accuracy.
Table of Contents (8 chapters)

Object detection with the sliding window solution

In this section, we'll learn to solve the object detection problem of detecting multiple object positions using the sliding window technique. At the end of this section, we'll explore the downsides of using this method.

The very first step is to train a convolutional neural network (CNN)as a VGG-16 or maybe a more advanced architecture, such as the inception network, or even the residual network. We'll use cropped images as the training data, instead of the original size of the images. The cropped images will contain only the object in question.

In this example, we'll use the car detection problem and the images will contain cars. When it comes to practical implementation, there are two things that we need to keep in mind:

  • It would help if we used different crop sizes for different images.
  • Add images other...