“…Underwater target/object detection processes signals (image, audio, video, acoustic vibrations, radio/optical radiations) and extracts the information content that provides an ultimate insight to the underwater environment. This information is useful in a number of applications such as object detection and tracking by underwater robots [10], [11], objects detections by radars for military and civilian purposes [12], surveillance systems [13], [14], [15], [16], ship tracking [17], [18], mine detection [19], [20], [21], water quality and environmental impacts [22], [23], [24], and toxins in water [25], [26], to mention a few. Figure 1 summarizes the various applications of underwater object detection ranging from noise detection in underwater channel to waste products, precious materials, mines, marine animals, radar signals, ships and their paths and position finding, to mention a few.…”