Abstract: A method comprises receiving, by a computer-based system for processing a transaction, a notification that a transaction account holder has taken an action, taking, in near real time, an action in response to the action taken by the transaction account holder, and/or communicating with a web-client associated with the transaction account holder in response to the action taken by the transaction account holder. The communicating with the web-client may occur in near real time.

Abstract: A method comprises receiving, by a computer-based system for processing a transaction, a notification that a transaction account holder has taken an action, taking, in near real time, an action in response to the action taken by the transaction account holder, and/or communicating with a web-client associated with the transaction account holder in response to the action taken by the transaction account holder. The communicating with the web-client may occur in near real time.

Abstract: A method comprises receiving, by a computer-based system for processing a transaction, a notification that a transaction account holder has taken an action, taking, in near real time, an action in response to the action taken by the transaction account holder, and/or communicating with a web-client associated with the transaction account holder in response to the action taken by the transaction account holder. The communicating with the web-client may occur in near real time.

Abstract: The system integrates transaction account issuers, merchants, and consumers. A transaction account issuer may provide one or more APIs to merchants. The transaction account issuer may provide a sandbox environment for merchants to test applications with the APIs. The transaction account issuer may provide documentation to assist the merchants in integrating with the transaction account issuer. The transaction account issuer may notify the merchants of any changes to the documentation.

Abstract: A method comprises receiving, by a computer-based system for processing a transaction, a notification that a transaction account holder has taken an action, taking, in near real time, an action in response to the action taken by the transaction account holder, and/or communicating with a web-client associated with the transaction account holder in response to the action taken by the transaction account holder. The communicating with the web-client may occur in near real time.

Abstract: A video coding scheme based on wavelet representation performs motion compensation in the wavelet domain rather than spatial domain. This inter-frame wavelet transform coding scheme preferably uses a variable-size multi-resolution motion compensation (MRMC) prediction scheme. The MRMC scheme produces displaced residual wavelets (DRWs). An optimal bit allocation algorithm produces a bit map for each DRW, and each DRW is then adaptively quantized with its respective bit map. Each quantized DRW is then coded into a bit stream.

Abstract: A novel variable-size block multi-resolution motion estimation (MRME) scheme is presented. The motion estimation scheme can be used to estimate motion vectors in subband coding, wavelet coding and other pyramid coding systems for video compression. In the MRME scheme, the motion vectors in the highest layer of the pyramid are first estimated, then these motion vectors are used as the initial estimate for the next layer and gradually refined. A variable block size is used to adapt to its level in the pyramid. This scheme not only considerably reduces the searching and matching time but also provides a meaningful characterization of the intrinsic motion structure. In addition, the variable-MRME approach avoids the drawback of the constant-size MRME in describing small object motion activities. The proposed variable-block size MRME scheme can be used in estimating motion vectors for different video source formats and resolutions including video telephone, NTSC/PAL/SECAM, and HDTV applications.