Abstract: Systems and methods for substitute item selection are presented. The methods include providing for presentation first user interface data comprising item preference information representing a substitution preference of an item, a first user interface generated with the first user interface data being configured to receive a change command from a user, wherein the first user interface comprises a unified substitution preferences user interface available from a plurality of order building stages. The methods also include providing for presentation second user interface data in accordance with receiving the change command, a second user interface generated with the second user interface data being configured to present an item substitution suggestion, and to receive item substitution information. The methods also include receiving the item substitution information via the second user interface and storing the item substitution information in a data store.

Abstract: The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The method and system also includes computing the number of photographs required to be taken and the azimuth angle of the center point of each photograph for building a spherical environment map representative of the spherical panorama. The method and system also includes an algorithm for computing the accurate azimuth angles of these taken photographs and seaming them together to build the spherical environment map.

Abstract: The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The method and system also includes computing the number of photographs required to be taken and the azimuth angle of the center point of each photograph for building a spherical environment map representative of the spherical panorama. The method and system also includes an algorithm for computing the accurate azimuth angles of these taken photographs and seaming them together to build the spherical environment map.

Abstract: The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The method and system also includes computing the number of photographs required to be taken and the azimuth angle of the center point of each photograph for building a spherical environment map representative of the spherical panorama. The method and system also includes an algorithm for computing the accurate azimuth angles of these taken photographs and seaming them together to build the spherical environment map.

Abstract: The present invention provides a method and system for selecting an access network in a heterogeneous network environment. The method records user configuration information in a mobile device and applies the mobile device to first collect and record current status information of each access network, then determines a network stability coefficient for each access network based on both the user configuration information and the current status information, and finally selects an access network with a maximum network stability coefficient to thus establish a connection with the access network selected.

Abstract: A packet transmission method for WLAN, a controlling method for data transmitting node of WLAN and a controlling method for data receiving node of WLAN are provided. In the packet transmission method, the data transmitting node sends a transmitting request signal. When the receiving node receives the transmitting request signal and cannot immediately perform a transmitting operation defined by the transmitting request signal, a stop-transmitting signal is sent to the transmitting node. After sending the stop-transmitting signal, the receiving node outputs a start-to-transmit signal to the transmitting node when the transmitting operation can be performed. The transmitting node sends the data after receiving the start-to-transmit signal.

Abstract: The present invention provides a method and system for selecting an access network in a heterogeneous network environment. The method records user configuration information in a mobile device and applies the mobile device to first collect and record current status information of each access network, then determines a network stability coefficient for each access network based on both the user configuration information and the current status information, and finally selects an access network with a maximum network stability coefficient to thus establish a connection with the access network selected.

Abstract: The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The method and system also includes computing the number of photographs required to be taken and the azimuth angle of the center point of each photograph for building a spherical environment map representative of the spherical panorama. The method and system also includes an algorithm for computing the accurate azimuth angles of these taken photographs and seaming them together to build the spherical environment map.

Abstract: The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The method and system also includes computing the number of photographs required to be taken and the azimuth angle of the center point of each photograph for building a spherical environment map representative of the spherical panorama. The method and system also includes an algorithm for computing the accurate azimuth angles of these taken photographs and seaming them together to build the spherical environment map.

Abstract: The invention relates to building spherical panoramas for image-based virtual reality systems. The image-based spherical panoramas can be navigated in any desired view direction (360-degrees) by suitable three-dimensional image browsers or viewers. The method and system also includes computing the number of photographs required to be taken and the azimuth angle of the center point of each photograph for building a spherical environment map representative of the spherical panorama. The method and system also includes an algorithm for computing the accurate azimuth angles of these taken photographs and seaming them together to build the spherical environment map.

Abstract: A hierarchical database system for on-line Chinese character recognition is disclosed. The hierarchical database system comprises: (1) the database of character description; (b) the database of stroke correspondence rules of components; (3) the database of character structures; (4) the database of standard component patterns; and (5) the database of spatial relationships between strokes of components. The database of character description stores the rule code(s) of the constituent component(s) and the character structure for all the characters included in the vocabulary. The database of stroke correspondence rules of components stores stroke correspondence rules for all the components denoted by the above mentioned rule codes. The database of character structure stores the synthesis rules of character patterns, the decomposition rules of character structures, and the spatial relationships between components, for all the 208 character structures utilized in a preferred embodiment.

Abstract: A stroke-order-free and stroke-number-free method for the on-line recognition of Chinese characters comprising the steps of: (a) inputting a handwritten input script on an on-line basis, (b) preprocessing the input script to reduce a number of possible matching template characters; (c) performing basic stroke recognition using a database of basic strokes to identify all possible basic strokes contained in the handwritten input script; (d) performing stroke correspondence using a database of stroke correspondence rules to find matching strokes in template characters for the strokes contained in the handwritten input script; and (e) performing computation of discrimination functions using a database of character patterns and a database of spatial relationships between strokes of characters to find one or more template characters with minimum error.