Abstract: Method for determining position of a mobile device having an imaging device includes obtaining an image of a mark on a known-position object from the imaging device, the mark having an encoded position, decoding the mark to derive data about the position of the mark using a database of marks and their positions, and analyzing appearance of the mark in the image in combination with the derived data about the position of the mark to determine the position of the mobile device. Mark appearance analysis may involve analyzing an angle between an imaging direction of the imaging device and a surface of the mark.

Abstract: Method for providing position-based information to a mobile device with at least one imaging device includes obtaining, using the imaging device, an image including a stationary pattern of pixels, searching through a database of pixel patterns for a pixel pattern that most closely matches the pattern of pixels in the obtained at least one image, the database containing pixel patterns and positional information about the pixel patterns, and retrieving from the database as a result of the searching, positional information about one of the pixel patterns that is deemed to most closely match the pattern of pixels in the obtained at least one image. Data is provided to the mobile device, i.e., to a data output device or functionality thereof, dependent on the retrieved positional information about one of the pixel patterns that is deemed to most closely match the pattern of pixels in the obtained at least one image.

Abstract: Method for determining position of a mobile device having an imaging device includes obtaining an image of a mark on a known-position object from the imaging device, the mark having an encoded position, decoding the mark to derive data about the position of the mark using a database of marks and their positions, and analyzing appearance of the mark in the image in combination with the derived data about the position of the mark to determine the position of the mobile device. Mark appearance analysis may involve analyzing an angle between an imaging direction of the imaging device and a surface of the mark.

Abstract: Method, system and computer program for generating a database of pixel patterns includes obtaining images using an imaging system of mobile devices, each image including a pixel pattern, and determining a position of the mobile device using a positioning system at least partly situated on the mobile device when each image is obtained using the imaging system of the mobile device. Positional relationships between a size and/or angular orientation of the pattern of pixels and an associated determined position of the mobile device when the at least one image including the pattern of pixels was obtained are generated and enables retrieval of an estimation of the position of the mobile device upon input of another image including the pattern of pixels. The generated positional relationships between the size and/or angular orientation of the pattern of pixels and the associated determined position of the mobile device are stored in a database.

Abstract: Method for determining position of a mobile device having an imaging device includes obtaining an image of a mark on a known-position object from the imaging device, the mark having an encoded position, decoding the mark to derive data about the position of the mark using a database of marks and their positions, and analyzing appearance of the mark in the image in combination with the derived data about the position of the mark to derive the position of the mobile device. Mark appearance analysis may involve analyzing an angle between an imaging direction of the imaging device and a surface of the mark.

Abstract: Monitoring technique includes identifying objects in images and associating color characteristics with each identified object. When the color characteristics of an object in one image is above a color resemblance threshold to the color characteristics of an object in another image, the object in both images is considered the same. Otherwise, the respective object in both images are considered to be different. Data about time that each image including an identified object was obtained and location of each object when each image including an identified object was obtained is derived. An information conveyance system is activated to convey the time and location-related data about identified objects relative to defined areas of the site or movement of the identified objects or people into, between or out of the defined areas of the site or a communication resulting from such data satisfying one or more conditions.

Abstract: Method for generating and using a database of pixel patterns includes obtaining images using a mobile device including a common pixel pattern and processing each image based on a size of the pixel pattern and/or angular orientation of the pixel pattern relative to an imaging direction to derive positional information about the pixel pattern. Location of the mobile device is determined by obtaining an image including a stationary pixel pattern, searching the database for the obtained pixel pattern, and retrieving positional information about a closest match pixel pattern. With the retrieved positional information, an angle between an imaging direction in which the image including the closest match pixel pattern was obtained and an imaging direction in which the image was obtained and/or a size differential between the closest match pixel pattern and the pixel pattern in the obtained image is/are analyzed to derive positional information about the mobile device's location.

Abstract: Method, system and computer program for obtaining information about telecommunications devices that transmit signals seeking available Wi-Fi connectivity. One or more Wi-Fi beacons are configured to detect probing signals from any telecommunications device in its range, a processor at each Wi-Fi beacon extracts an identifier of each telecommunications device from detected probing signals and each Wi-Fi beacon is associated with the identifier of any telecommunications devices whose probing signals have been received by that Wi-Fi beacon to thereby determine the presence and optionally position of any telecommunications devices within the range of the Wi-Fi beacon. The telecommunications devices are not involved in the method other than providing in their usual manner of operation, probing signals containing identifiers.