专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10003822B2 Error-resilient coder of image sequences and video 有权
公开(公告)号：US10003822B2
公开(公告)日：2018-06-19
申请号：US15040554
申请日：2016-02-10
申请人： PrimaComp, Inc.
发明人： William A. Pearlman , Yang Hu
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/64
CPC分类号： H04N19/647
摘要： A method, computer system, and a computer program product is disclosed for encoding a sequence of frames as one or more compressed bitstreams, the method includes a processor obtaining a sequence of frames in an order and performing a wavelet transform on each frame of the sequence of frames independently in the order. The processor constructs a significant points list and an insignificant sets list, creating one or more spatial trees comprised of branch nodes of the list of insignificant sets for each frame of the sequence of frames. The processor initializes the significant points list and the list of insignificant sets for each frame and identifies a most significant bit in each frame and for each frame, selects at least one coding unit and creates a progressive significance map for coding. The processor writes a global header and a local header for the compressed bitstreams for each coding unit.

2. 发明授权

US09049432B1 Motion differential set partition coding for color image sequence compression 有权
标题翻译：运动差分集分割编码用于彩色图像序列压缩
公开(公告)号：US09049432B1
公开(公告)日：2015-06-02
申请号：US14324078
申请日：2014-07-04
申请人： PrimaComp, Inc.
发明人： William Abraham Pearlman , Yang Hu
IPC分类号： H04N19/103 , H04N19/63 , H04N19/186 , H04N19/593
CPC分类号： H04N19/00818 , H04N19/102 , H04N19/137 , H04N19/172 , H04N19/507 , H04N19/647
摘要： A method, computer system, and a computer program product is disclosed for encoding a sequence of color frames. The method includes a processor obtaining a sequence of color frames and rendering a first frame of the sequence in at least three components, each component representing a different color value. For each of the at least three components, the processor performs a wavelet transform on the first frame, initializes a significant points list and a list of insignificant sets to create an individual spatial tree of the list of insignificant sets for each component, searches all of the at least three components to identify a most significant bit in the first frame, and creates a consolidated significance map with all the color components for the first frame by searching the individual spatial tree for each component. The processor then obtains this significance map and utilizes the significance map to encode the first frame. The processor retains the significance map in memory as a key frame significance map and retains the first frame, or a color transform of the first frame, in memory, as a key frame.
摘要翻译：公开了一种用于对一系列彩色帧进行编码的方法，计算机系统和计算机程序产品。该方法包括处理器获得颜色帧序列并且以至少三个分量呈现序列的第一帧，每个分量表示不同的颜色值。对于至少三个组件中的每一个，处理器在第一帧上执行小波变换，初始化有效点列表和无关集合的列表以创建每个组件的无关集合列表的单个空间树，搜索所有所述至少三个组件用于识别所述第一帧中的最高有效位，并且通过针对每个组件搜索所述个体空间树，来创建具有所述第一帧的所有颜色分量的合并的有效图。然后，处理器获得该有效图并利用该重要性图来对第一帧进行编码。处理器将存储器中的重要性图保留为关键帧有效图，并将第一帧或第一帧的颜色变换保留在存储器中作为关键帧。

3. 发明授权

US5764807A Data compression using set partitioning in hierarchical trees 失效
标题翻译：数据压缩使用分层树中的集合分区
公开(公告)号：US5764807A
公开(公告)日：1998-06-09
申请号：US527863
申请日：1995-09-14
申请人： William Abraham Pearlman , Amir Said
发明人： William Abraham Pearlman , Amir Said
IPC分类号： G06T9/40
CPC分类号： G06T9/40
摘要： A data compression technique includes a subband decomposition of a source image followed by coding of the coefficients of the resultant subband decomposition for storage and/or transmission. During coding, three ordered lists are used comprising a list of significant pixels (LSP), a list of insignificant pixels (LIP) and a list of insignificant sets of pixels (LIS). The pixels in the LIP are tested, and those that are significant at a current quantization level are moved to the LSP. Similarly, sets are sequentially evaluated following the LIS order, and when a set is found to be significant it is removed from the LIS and partitioned into new subsets. The new subsets with more than one element are added back to the end of the LIS, while the single-coordinate sets are added to the end of the LIP or to the end of the LSP, depending whether they are insignificant or significant, respectively.
摘要翻译：数据压缩技术包括源图像的子带分解，随后对所得到的子带分解的系数进行编码以进行存储和/或传输。在编码期间，使用三个有序列表，其包括有效像素（LSP）的列表，无效像素列表（LIP）和无关的像素集合列表（LIS）。测试LIP中的像素，并将在当前量化级别显着的像素移动到LSP。类似地，按照LIS顺序依次评估集合，并且当发现集合是重要的时，集合将从LIS中移除并被划分为新的子集。具有多个元素的新子集被添加到LIS的末尾，而单坐标集分别被添加到LIP的末尾或LSP的末尾，这取决于它们是否不显着或不重要。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式