This paper analyzes, compares, and contrasts technical challenges, methods, and the performance of text detection and recognition research in color imagery It summarizes the fundamental problems and enumerates factors that should be considered when addressing these problems Existing techniques are categorized as either stepwise or integrated and sub-problems are highlighted including text localization, verification, segmentation and recognition Special issues associated with the enhancement of degraded text and the processing of video text, multi-oriented, perspectively distorted and multilingual text are also addressed The categories and sub-categories of text are illustrated, benchmark datasets are enumerated, and the performance of the most representative approaches is compared This review provides a fundamental comparison and analysis of the remaining problems in the field

Text Detection and Recognition in Imagery: A Survey

The disclosed embodiments include system and method for routing communications over a communications network. In one embodiment, a determination is made as to whether to establish a communication along a communication path based on network performance information. The disclosed embodiments provide several alternatives for establishing the communication and improving communications along the communication path in response to a determination that at least one network node along the communication path is impaired or congested.

System and method for routing data on a packet network

An apparatus for multi-bitrate content streaming includes a receiving module configured to capture media content, a streamlet module configured to segment the media content and generate a plurality of streamlets, and an encoding module configured to generate a set of streamlets. The system includes the apparatus, wherein the set of streamlets comprises a plurality of streamlets having identical time indices and durations, and each streamlet of the set of streamlets having a unique bitrate, and wherein the encoding module comprises a master module configured to assign an encoding job to one of a plurality of host computing modules in response to an encoding job completion bid. A method includes receiving media content, segmenting the media content and generating a plurality of streamlets, and generating a set of streamlets.

Apparatus, system, and method for multi-bitrate content streaming

A system for monitoring and optimizing network performance to a wireless device including a wireless router in communication with the wireless device for transmitting and receiving RF signals between the wireless router and the wireless device, the wireless router configured to determine network performance information of the wireless network; concatenate the network performance information into data packets; a packet network switch in communication with the wireless router for communicating the data packets between the wireless router and the packet network switch; and a network management device in communication with the packet network switch for instructing the packet network switch to route the data packets to the wireless router based on the network performance information to optimize the network performance to the wireless device. A method for monitoring and optimizing network performance to a wireless device is also included.

System and method for monitoring and optimizing network performance to a wireless device

A system and method for tracking application resource usage. Network performance information of a communications network is gathered using performance information packet data packets. The network performance information is communicated to an application. Instructions in the application are executed in response to receiving the network performance information.

System and method for tracking application resource usage

A sender converts a non-compressed packet, which is to be transmitted, into a full-header packet including a full header or a header-compressed packet including a compressed header, and sends the converted packet to a receiver The receiver receives the packet transmitted from the sender, and converts the received packet into a decompressed packet In cases the full-header packet or header-compressed packet is lost between the sender and receiver, the receiver keeps header-compressed packers received during an interval from the packet loss to the next earliest reception of a full-header packet, and decompresses the compressed headers of the kept header-compressed packets on the basis of contents of the full header of the full-header packet

Method and apparatus for packet transmission with header compression

We propose a of control architecture for mobile multimedia streaming in which RTP monitoring agents report QoS information to media servers. The RTP monitoring agents lie midway between wired networks and radio links, monitor RTP packets sent from media servers to mobile terminals, and report quality information to media servers so that the servers can realize network-adaptive QoS control. By analyzing the information sent from the agents, the servers can distinguish quality degradation caused by network congestion from that caused by radio link errors, and can improve service quality by controlling the transmission rate and robustness against packet loss. Simulation results show our implemented QoS control schemes that use the feedbacks from the agent and control transmission rate and robustness provide better video quality than a simple rate control mechanism.

Rate and robustness control with RTP monitoring agent for mobile multimedia streaming

In this paper, we present a mobile streaming media CDN (Content Delivery Network) architecture in which content segmentation, request routing, pre-fetch scheduling, and session handoff are controlled by SMIL (Synchronized Multimedia Integrated Language) modification. In this architecture, mobile clients simply follow modified SMIL files downloaded from a streaming portal server; these modifications enable multimedia content to be delivered to the mobile clients from the best surrogates in the CDN. The key components of this architecture are 1) content segmentation with SMIL modification, 2) on-demand rewriting of URLs in SMIL, 3) pre-fetch scheduling based on timing information derived from SMIL, 4) SMIL updates by SOAP (Simple Object Access Protocol) messaging for session handoffs due to clients mobility. We also introduce QoS control with a network agent called an "RTP monitoring agent" to enable appropriate control of media quality based on both network congestion and radio link conditions. The current status of our prototyping on a mobile QoS testbed "MOBIQ" is reported in this paper. We are currently designing the SOAP-based APIs (Application Programmable Interfaces) needed for the mobile streaming media CDN and building the CDN over the current testbed.

Mobile streaming media CDN enabled by dynamic SMIL

The object of the present invention is to enable broadcast media to be reproduced quickly while reducing an overhead accompanied with the broadcast media. A broadcast communication system (1) according to the present invention transmits the broadcast media from a server (10) to a communication terminal (20). The server (10) transmits broadcast notification information (SAP message) designating at least one broadcast media, and transmits reproduction information indicating a reproduction method of the designated broadcast media prior to reproduction of the broadcast media by the communication terminal (20). The communication terminal (20) reproduces the broadcast media designated by the broadcast notification information (SAP message) based on the reproduction information when receiving the broadcast notification information.

Communication terminal, server, relay apparatus, broadcast communication system, broadcast communication method, and program

To present a plurality of functions that is a candidate for implementation based on an input character string, and to support a user in selecting a function. Server device 10 acquires input information input into terminal device 20 (SA1 to SA3), recognizes the input information with reference to a dictionary file, the dictionary file serving as a voice-recognition dictionary describing an identifier representing a category, the category being determined based on a meaning of a registered character string, and specifies an input character string and the first identifier, the first identifier representing a category of a registered character string included in the input character string (SA5). Server device 10 transmits the specified character string and first identifier to terminal device 20 (SA6). Terminal device 20 selects, with reference a function-selection file describing a correspondence between the first identifier and a category to which a function to be presented belongs, a category to which a function corresponding to the first identifier belongs (SA7 to SA9), and presents a plurality of functions belonging to the selected category in a predetermined presenting manner (for example, prior to the other functions) (SA10).

Takeshi Yoshimura

Papers

Method and apparatus for packet transmission with header compression

Rate and robustness control with RTP monitoring agent for mobile multimedia streaming

Mobile streaming media CDN enabled by dynamic SMIL

Communication terminal, server, relay apparatus, broadcast communication system, broadcast communication method, and program

Function presentation system, terminal device, server device, program and function presentation method