公开(公告)号：US20070211949A1

公开(公告)日：2007-09-13

申请号：US11683621

申请日：2007-03-08

申请人： Juergen NEUMANN

发明人： Juergen NEUMANN

IPC分类号： G06K9/36

CPC分类号： G06T9/005 ,  H03M7/46 ,  H04N19/105 ,  H04N19/182 ,  H04N19/593

摘要： According to the invention, a method is provided for the compression of data which contain a plurality of information units, comprising: determining of one or more expected values for each of the information units; for each information unit, determining a coincidence of the value of the information unit with the one or more expected values; and producing output data which contain information concerning the coinciding of the values of the information units with the one or more expected values, and information concerning the values of the information units, if non-coincidences with the one or more expected values are found, in which the expected values are formed on the basis of values of information units which have already been subjected to the preceding steps for compression and form a two-dimensional context with respect to the present information unit.

摘要翻译： 根据本发明，提供一种用于压缩包含多个信息单元的数据的方法，包括：确定每个信息单元的一个或多个期望值; 对于每个信息单元，确定信息单元的值与一个或多个期望值的一致性; 并且生成包含关于信息单元的值的一致性的信息与一个或多个期望值的输出数据，以及关于信息单元的值的信息，如果发现与该一个或多个期望值的不一致，则 基于已经经过前述压缩步骤的信息单元的值而形成预期值，并且相对于本信息单元形成二维上下文。

公开(公告)号：US20070211937A1

公开(公告)日：2007-09-13

申请号：US11683602

申请日：2007-03-08

申请人： Juergen NEUMANN

发明人： Juergen NEUMANN

IPC分类号： G06K9/00

CPC分类号： H04N1/642 ,  G06T9/00 ,  H04N19/12 ,  H04N19/186

摘要： According to the invention, a method is provided for the compression of image data, comprising: dividing an image which is to be compressed into a plurality of image sections; determining, for each image section, a compression method from a plurality of compression methods, by means of predetermined parameters; and compressing the image data of each image section by means of the respectively determined compression method. By dividing an image which is to be compressed into a plurality of areas or sections, a suitable compression method can be allocated to each image section. In particular, the plurality of compression methods comprises a lossless compression method and a lossy compression method. For image sections which consist predominantly of text, a lossless compression method is selected. For image sections which consist predominantly of graphic representations, a lossy compression method is selected.

摘要翻译： 根据本发明，提供了一种用于压缩图像数据的方法，包括：将要压缩的图像划分成多个图像部分; 对于每个图像部分，通过预定参数来确定来自多个压缩方法的压缩方法; 并通过分别确定的压缩方法压缩每个图像部分的图像数据。 通过将待压缩的图像划分为多个区域或部分，可以将适当的压缩方法分配给每个图像部分。 特别地，多种压缩方法包括无损压缩方法和有损压缩方法。 对于主要由文本组成的图像部分，选择无损压缩方法。 对于主要由图形表示组成的图像部分，选择有损压缩方法。