The ambient intelligence extends the territory from office building to home space for security, privacy, and whenever human needs better daily lives. Intelligent surveillance tends to simultaneously satisfy the surveillants and people under surveillance for the needs that the former want to protect the latter and the latter want to be protected. In this paper, we propose a method called 2D-heterogeneous multimodal sensation which tends to fulfill the requirement in intelligent surveillance but hiding the privacy. Then, four types of transcoding sequences are also proposed to transfer and store the sensed information.