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1. 发明授权

US4771467A Method of identification of arborescent structures in digital images and its application to an image-processing device 失效
标题翻译：识别数字图像中树状结构的方法及其在图像处理装置中的应用
公开(公告)号：US4771467A
公开(公告)日：1988-09-13
申请号：US937618
申请日：1986-12-03
申请人： Jean Y. Catros , Denis Mischler
发明人： Jean Y. Catros , Denis Mischler
IPC分类号： G06F17/15 , G06K9/68 , G06K9/00
CPC分类号： G06K9/6892
摘要： In a method for identification of arborescent structures detected in digital images by starting from model arborescent structures, a matching operation consists in comparing an object tree with a model tree. The method involves computation of the distance between the object tree and the model tree in accordance with a so-called Selkow iterative method which utilizes predefined cost values for elementary operations of label-changing, insertion or destruction of sub-trees in the descriptive lists of the trees to be identified. Starting from all the steps of computation of the distance measurement, the elementary operations which have served to arrive at the final distance are recorded and identification is obtained by label changes of the sub-trees reduced to branches.
摘要翻译：在通过从模拟树状结构开始的数字图像中检测到的树状结构的识别方法中，匹配操作在于将对象树与模型树进行比较。该方法涉及根据所谓的Selkow迭代方法计算对象树和模型树之间的距离，该方法利用预定义的成本值，用于在描述性列表中的子树的标签改变，插入或破坏的基本操作要识别的树木。从计算距离测量的所有步骤开始，记录已达到最终距离的基本操作，并通过缩小到分支的子树的标签变化来获得识别。

2. 发明授权

US4498102A Method and apparatus for a transmission system for transmitting an image at a reduced output 失效
标题翻译：用于传输系统的方法和装置，用于以减小的输出传输图像
公开(公告)号：US4498102A
公开(公告)日：1985-02-05
申请号：US367387
申请日：1982-04-12
申请人： Christian Richard , Jean Y. Catros
发明人： Christian Richard , Jean Y. Catros
IPC分类号： H04N7/32 , G06T9/00 , H04N1/41 , H04N7/26 , H04N7/36 , H04N1/00
CPC分类号： H04N19/503 , H04N19/90
摘要： In the method, an image is analyzed by a television camera, is then submitted to differential coding with a "temporal inter-fields prediction", between fields of the same image, with the exception of one initialization line which is coded with a "uni-dimensional space prediction". The transmitting device and the receiving device of the transmission system each comprise an image memory which stores the two fields. They also comprise means for calculating the prediction, shown in the figure, and operating according to two types of the method. A first device calculates a uni-dimensional space prediction, and a second device calculates a temporal inter-fields prediction. A pointer selects the space prediction during initialization and the temporal prediction during the remainder of the transmission.
摘要翻译：在该方法中，通过电视摄像机分析图像，然后在相同图像的场之间以“时间场间预测”进行差分编码，除了用“uni”编码的一条初始化线维度空间预测“。传输系统的发送设备和接收设备各自包括存储两个字段的图像存储器。它们还包括用于计算预测的装置，如图所示，并根据两种类型的方法进行操作。第一装置计算单维空间预测，第二装置计算时间场间预测。指针在初始化期间选择空间预测，并在传输的剩余时间期间选择时间预测。

3. 发明授权

US4519085A Differential data coding and decoding process and system restricting propagation of transmission errors 失效
标题翻译：差分数据编码和解码过程和系统限制传播错误传播
公开(公告)号：US4519085A
公开(公告)日：1985-05-21
申请号：US423726
申请日：1982-09-27
申请人： Jean Y. Catros
发明人： Jean Y. Catros
IPC分类号： H04N7/32 , G06T9/00 , H04B14/06 , H04N7/34 , H03K13/22
CPC分类号： H04N19/593 , H04B14/066
摘要： A differential coding-decoding system, in which the coder comprises a forecaster delivering, on the basis of a reconstructed value corresponding to a coded quantity, a forecaster P for the following quantity X to be coded, a forecast error quantizer delivering the difference d=X-P, and a forecast quantizer, the outputs of which are connected to a code allocator, the allocated code word transmitted for a quantity X to be coded being related, first to the forecast error quantization level E.sub.i formulated by the forecast error quantizer, and, second, to the quantized forecast P.sub.j formulated by the forecast quantizer; the codes allocated to successive forecast error zones corresponding to forecasts P.sub.j are always assigned in the same order, when j varies from minimum to maximum forecast error zones.
摘要翻译：一种差分编码解码系统，其中编码器包括预测器，其基于与编码量相对应的重构值，传送用于要编码的以下数量X的预测器P，预测误差量化器将差d = XP和预测量化器，其输出连接到代码分配器，所分配的代码字被发送到要编码的数量X，首先是由预测误差量化器制定的预测误差量化级Ei，第二，由预测量化器制定的量化预测Pj; 当j从最小到最大预测误差区域变化时，分配给对应于预测Pj的连续预测误差区域的代码总是以相同的顺序分配。

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