Ambient Assisted Living (AAL) is a growing field resulting from aging populations in the majority of the well-developed regions of the world. AAL technologies aim at supporting independent living at home and therefore, include a wide variety of innovations. However, even though AAL technologies are on the rise, the acceptance of them among the elderly population is still low. In order to elaborate acceptance criteria, the state of the art on opinions and perceptions of elderly people about AAL technologies, is summarized. A total of eleven acceptance criteria are excerpted from this and a diagram is created to show their connections. This information can be helpful for the developers of future AAL technologies, so that they have a better idea of aspects they have to consider to improve the acceptance of their technology. The excerpted criteria are illustrated based on the FEARLESS - life comfort system, which is an image-based fall detection system as an example for a recently developed AAL technology.