In accordance with some embodiments, a protocol permits communications between platforms and image devices. This allows, for example, the platform to specify particular types of information that the platform may want, the format of information the platform may prefer, and other information that may reduce the amount of processing in the platform. For example, conventionally, in gesture recognition software, the platform receives an ongoing stream of video to be parsed, searched and processed in order to identify gestures. This may consume communications bandwidth between platforms and imaging devices, particularly in cases where wireless communications or other bandwidth limited communications may be involved.