Computer vision and recognition is playing an increasing important role in the modern intelligent control. Object detection is the first and the most important step in object recognition. Traditionally, special objects can be detected and recognized by the template matching method, but the recognition speed has always been a problem. Also for recognition by the neural network, training the data is always time consumption. In this book, the genetic algorithm-based face recognition system is examined. This book proposes a practical method for face detection and recognition. Finally, the experimental results, and a comparison with the traditional template matching method, and some other considerations, are also given.