This document summarizes a survey paper on various smart attendance systems. It discusses the limitations of existing systems that use RFID tags, biometrics, barcodes etc. and proposes a new facial recognition based system. The key points are:
1) Existing systems have drawbacks like high hardware costs, risk of lost RFID tags/cards, inability to mark multiple attendances simultaneously.
2) The proposed system uses facial recognition on images captured by Android apps to automatically mark attendance from student faces.
3) This novel approach aims to reduce costs, paperwork and attendance marking time without additional hardware requirements.