A Mixed Media Reality (MMR) system associated techniques are disclosed. In one particular embodiment, the MMR system includes a MMR brokerage network having a customer, an MMR broker, an MMR service bureau and an MMR clearinghouse. The MMR brokerage network allows these entities to interact to provide a unified point of business access for the customer who wants to add MMR functionality to a document. Furthermore, the MMR system of the present invention facilitates business methods that take advantage of the combination of a portable electronic device, such as a cellular camera phone, and a paper document. The present invention also includes a number of novel methods including: a method for operation of a MMR brokerage network, a method for layout independent MMR recognition, a strip fragment candidate generation process, and a page candidate accumulation process.