Abstract:Ocean stereo observation and detection are important ways to obtain ocean information, and form the basis for marine scientific research, environmental protection, and economic development. The rapid development of ocean stereo observation networks in recent years has brought significant improvement in the quality and quantity of observation data, and also promoted the paradigm shift of ocean information processing technology from "model-oriented" to "data and model-driven". In this process, the cross-fertilization of artificial intelligence (AI) and ocean information has played an important role. In this paper, we discuss the limitations of classical methods, review new advances in AI-aided ocean physical field reconstruction, underwater target detection and localization, highlight the key scientific problems and potential solutions in AI-aided ocean stereo observation and detection, and look forward to the future development direction of this field.