Abstract: Methods, apparatus, systems, and devices are described for using a mobile device equipped with an image sensor to retrieve information associated with a light fixture. A method of using a mobile device equipped with an image sensor to retrieve information associated with a light fixture may include capturing, at the image sensor, an image of an illuminated indicia. The illuminated indicia may be co-located with the light fixture. At least one characteristic of the illuminated indicia may be determined from the image of the illuminated indicia. Information associated with the at least one characteristic of the illuminated indicia may be retrieved.

Abstract: Methods, systems, and devices are described for determining an orientation of a mobile device. One method includes capturing, at the mobile device, an image of at least one illuminated object defining an illuminated reference axis; determining a first angle between the illuminated reference axis and a device reference axis of the mobile device; determining a second angle between the illuminated reference axis and a common reference axis; estimating a third angle between the device reference axis and the common reference axis; and determining an orientation of the mobile device based at least in part on the first angle, the second angle, and the third angle.

Abstract: Methods, systems, and devices are described for determining an orientation of a mobile device. One method includes capturing, at the mobile device, an image of at least one illuminated object defining an illuminated reference axis; determining a first angle between the illuminated reference axis and a device reference axis of the mobile device; determining a second angle between the illuminated reference axis and a common reference axis; estimating a third angle between the device reference axis and the common reference axis; and determining an orientation of the mobile device based at least in part on the first angle, the second angle, and the third angle.

Abstract: A method, an apparatus, and a computer-readable medium for configuring an image sensor for processing a visible light communication (VLC) signal are provided. The apparatus instructs the image sensor to operate at a first exposure setting, the first exposure setting lower than a second exposure setting for capturing a photographic image, captures, via the image sensor, at least one VLC signal frame at the first exposure setting, detects at least one communication symbol included in the at least one captured VLC signal frame, and decodes a message associated with the at least one VLC signal frame captured by the image sensor by decoding a number of detected communication symbols.

Abstract: Methods, apparatus, systems, and devices are described for using a mobile device equipped with an image sensor to retrieve information associated with a light fixture. A method of using a mobile device equipped with an image sensor to retrieve information associated with a light fixture may include capturing, at the image sensor, an image of an illuminated indicia. The illuminated indicia may be co-located with the light fixture. At least one characteristic of the illuminated indicia may be determined from the image of the illuminated indicia. Information associated with the at least one characteristic of the illuminated indicia may be retrieved.