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Towards In-Baggage Suspicious Object Detection Using Commodity WiFi [pdf]
- adamredwoods 8y agoIn particular, to identify different materials, we exploit the WiFi signals transmitting through or bypassing the object, which result in different characteristics (i.e., absorption, refraction and reflection) in the CSI complex values from antennas and their differences. Additionally, we extract the signal reflected by the object from CSI to estimate its shape (e.g., width and height) or volume based on the finding that the strength of the reflected signal is proportional to the reflection area of the object. Wow, can I do this at home?