Systems and methods for improving the contrast of image frames are disclosed. An identifier of the nearest semi-transparent surface may be determined and stored in a stencil count of a stencil buffer. The movement of the mobile transceiver is measured by at least one acceleration sensor to take the movement of the mobile transceiver onto account in the operation of the radio system. The endpoint may transmit information to endpoints and may transmit recording information to the recording server. Electrolytic manganese dioxide having these properties exhibits significant synergistic and unexpected improvements in high-rate service, which translates to improved high-rate service life of the electrochemical cell containing the improved electrolytic manganese dioxide in its positive electrode.