Signal decoding methods, apparatus and systems

A method comprising:

• obtaining color image data or color video data, the color image data or color video data comprising an encoded signal orientation pattern, the encoded signal orientation pattern facilitating detection of an encoded message, the encoded signal orientation pattern comprising first frequency components, second frequency components and third frequency components, the color image data or color video data comprising first color data, second color data and third color data, in which the first color data comprises the first frequency components encoded therein, the second color data comprises the second frequency components encoded therein and the third color data comprises the third frequency components encoded therein;
• utilizing one or more processors or electronic processing circuitry, detecting the encoded signal orientation pattern from the first color data, the second color data and the third color data, said detecting yielding rotation and scale information;
• and
• using the rotation and scale information to detect the encoded message from data representing the color image data or color video data.

An apparatus comprising:

• memory storing color image data or color video data, the color image data or color video data comprising an encoded signal pattern, the encoded signal pattern aiding detection of an encoded message, the encoded signal pattern comprising first frequency components and second frequency components, the color image data or color video data comprising first color data and second color data, in which the first color data comprises the first frequency components encoded therein, and the second color data comprises the second frequency components encoded therein;
• one or more processors or electronic processing circuitry configured for:
• combining the first color data and the second color data, said combining yielding combined color data;
• obtaining rotation and scale information from the encoded signal pattern in the combined color data;
• decoding the encoded message from the combined color data, in which said decoding utilized the rotation and scale information.

An apparatus comprising:

• memory storing color image data or color video data, the color image data or color video data comprising an encoded signal orientation pattern, the encoded signal orientation pattern facilitating detection of an encoded message, the encoded signal orientation pattern comprising first frequency components, second frequency components and third frequency components, the color image data or color video data comprising first color data, second color data and third color data, in which the first color data comprises the first frequency components encoded therein, the second color data comprises the second frequency components encoded therein and the third color data comprises the third second frequency components encoded therein;
• and
• one or more processors or electronic processing circuitry configured for:
• determining rotation and scale information associated with the encoded signal orientation pattern from the first color data, the second color data and the third color data;
• and
• decoding the encoded message from data representing the color image data or color video data, in which said decoding utilizes the rotation and scale information.