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    • 1. 发明授权
    • Method and system for processing image data
    • 处理图像数据的方法和系统
    • US06760481B1
    • 2004-07-06
    • US09591482
    • 2000-06-09
    • Fehmi ChebilKai WillnerJani Lainema
    • Fehmi ChebilKai WillnerJani Lainema
    • G06K936
    • H04N19/647
    • The invention relates generally to the processing of image data. Especially the invention applies to the coding and decoding of still images for compression and transfer in a mobile telecommunications system. The objects of the invention are fulfilled by providing an image processing procedure, which is based on wavelet transform (202), successive approximation quantization (204, 208) and guadtree coding (206). The quadtree coding preferably comprises the step of coding the significance with two symbols. The solution does not require large data processing or memory capacity. Still it offers a high image quality for a given bit rate compared to the prior art solutions. The solution according to the invention also satisfies the requirements of progressivity in quality and resolution.
    • 本发明一般涉及图像数据的处理。 特别地,本发明适用于移动电信系统中用于压缩和传送的静止图像的编码和解码。 通过提供基于小波变换(202),逐次逼近量化(204,208)和加密编码(206)的图像处理过程来实现本发明的目的。 四叉树编码优选地包括用两个符号对重要性进行编码的步骤。 该解决方案不需要大量数据处理或内存容量。 与现有技术的解决方案相比,仍然可以提供给定比特率的高图像质量。 根据本发明的解决方案还满足了质量和分辨率的渐进性要求。
    • 5. 发明申请
    • Method, system and entities for multicast content pushing
    • 组播内容推送的方法,系统和实体
    • US20070156815A1
    • 2007-07-05
    • US11606194
    • 2006-11-30
    • Sujeet MateUmesh ChandraKai Willner
    • Sujeet MateUmesh ChandraKai Willner
    • G06F15/16
    • H04L29/06027H04L12/1859H04L12/189H04L65/4076H04L65/607H04L67/26
    • The present invention discloses a method for multicast content pushing between a server entity (UA-I) and at least one client entity (UA-II) as well as a corresponding system and client and server entities. The method comprises the steps of inviting, by the server entity, at least one client entity to join a multicast content streaming session, answering, by the at least one client entity to the server entity, whether the client entity joins the invited multicast content streaming session, releasing, at the server entity and to the server entity, a request for multicast content streaming, responding, by the server entity, to the released request by sending a response to the request to the at least one client entity that joined the multicast content streaming session.
    • 本发明公开了一种在服务器实体(UA-I)和至少一个客户端实体(UA-II)以及对应的系统和客户端和服务器实体之间推送多播内容的方法。 所述方法包括以下步骤:由所述服务器实体邀请至少一个客户端实体加入多播内容流传输会话,由所述至少一个客户端实体向所述服务器实体应答所述客户端实体是否加入所请求的多播内容流 会话,在服务器实体和服务器实体处释放对多播内容流的请求,由服务器实体响应于所发布的请求,通过向加入多播的至少一个客户端实体发送对请求的响应 内容流媒体会话。