公开(公告)号：US20070183675A1

公开(公告)日：2007-08-09

申请号：US10590149

申请日：2005-02-15

Applicant: Toshio Morohashi

Inventor： Toshio Morohashi

IPC: G06K9/36

CPC classification number: H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/154 ,  H04N19/162 ,  H04N19/17 ,  H04N19/176 ,  H04N19/60 ,  H04N19/80 ,  H04N19/85

Abstract: [PROBLEMS] To provide an image compression method capable of performing compression with different image qualities within an image. [MEANS FOR SOLVING PROBLEMS] In a mosiac processing unit (16), area division means (130) divides input image data into a plurality of filtering areas and at least some of the filtering areas are subjected to unification processing for each of the filtering areas by a filtering unit (131). On the other hand, a JPEG encoder (17) divides the image data after the mosiac processing into a plenty of rectangular block areas and each of the block areas is subjected to the DCT processing and quantization processing. Here, the filtering area consists of adjacent one or more than one sets of rectangular areas consisting of two or more pixels obtained by equally dividing the aforementioned block area by 2n (n is a natural number).

Abstract translation: 提供能够以图像内的不同图像质量进行压缩的图像压缩方法。 解决问题的手段在mosiac处理单元（16）中，区域划分装置（130）将输入图像数据划分成多个滤波区域，并且至少一些滤波区域对每个滤波区域进行统一处理 通过过滤单元（131）。 另一方面，JPEG编码器（17）将moscy处理后的图像数据分割成大量的矩形块区域，并且对每个块区域进行DCT处理和量化处理。 这里，滤波区域由相邻的一组或多于一组矩形区域组成，该组矩形区域由通过将上述块区域等分成2n（n是自然数）而获得的两个或更多个像素组成。

公开(公告)号：US20070140569A1

公开(公告)日：2007-06-21

申请号：US10589555

申请日：2005-02-15

Applicant: Hiroshi Tabuchi ,  Akira Taguchi ,  Kazuhiro Shimauchi ,  Toshio Morohashi

Inventor： Hiroshi Tabuchi ,  Akira Taguchi ,  Kazuhiro Shimauchi ,  Toshio Morohashi

IPC: G06K9/36

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/124 ,  H04N19/14 ,  H04N19/17

Abstract: [PROBLEMS] To improve the data compression ratio in the data compression/decompression method utilizing the down-sampling process. [MEANS FOR SOLVING PROBLEMS] Image data in a DS area division unit (130) is divided into a plenty of DS areas and DS areas which are not important are converted into contracted data of the block size by down-sampling in a down-sampling unit (131). A relocation unit (132) allocates two or more contracted data in one DS area, inserts file data into the other portion in the DS area, and removes the DS area where no contracted data is allocated, thereby reducing the entire image size. The image data thus contracted is inputted into a JPEG encoder (14) and subjected to a DCT process and a quantization process for each block. When performing restoration, decompression is performed by the JPEG decoder and the original location is restored. As for the contracted data, interpolation is performed to restore the image data.

Abstract translation: [问题]利用下采样处理来提高数据压缩/解压缩方法中的数据压缩比。 [解决问题的手段] DS区域划分单元（130）中的图像数据被划分为大量的DS区域，并且不重要的DS区域在下采样中通过下采样被转换为块大小的合同数据 单位（131）。 重定位单元（132）在一个DS区域中分配两个或多个收缩数据，将文件数据插入DS区域中的其他部分，并且去除没有分配数据的DS区域，从而减小整个图像大小。 如此收缩的图像数据被输入到JPEG编码器（14）中，并对每个块进行DCT处理和量化处理。 执行恢复时，JPEG解码器执行解压缩，并恢复原始位置。 对于合同数据，执行插值以恢复图像数据。

公开(公告)号：US08014611B2

公开(公告)日：2011-09-06

申请号：US10590149

申请日：2005-02-15

Applicant: Toshio Morohashi

Inventor： Toshio Morohashi

IPC: G06K9/36

CPC classification number: H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/154 ,  H04N19/162 ,  H04N19/17 ,  H04N19/176 ,  H04N19/60 ,  H04N19/80 ,  H04N19/85

Abstract: An image compression apparatus and method capable of performing compression with different image qualities within an image. In a mosaic processing unit (16) of the image compression apparatus, a filtering region divider (130) divides input image data into a plurality of filtering areas and at least some of the filtering areas are subjected to unification processing for each of the filtering areas by a filtering unit (131). On the other hand, a JPEG encoder (17) divides the image data after the mosaic processing into a plurality of rectangular block areas and each of the block areas is subjected to DCT processing and quantization processing. Here, the filtering area consists of adjacent one or more sets of rectangular areas each consisting of two or more pixels obtained by equally dividing the aforementioned block area by 2n (n is a natural number).

Abstract translation: 一种能够以图像内的不同图像质量进行压缩的图像压缩装置和方法。 在图像压缩装置的马赛克处理单元（16）中，滤波区域分割器（130）将输入图像数据分割为多个滤波区域，并且至少一些滤波区域对每个滤波区域进行统一处理 通过过滤单元（131）。 另一方面，JPEG编码器（17）将马赛克处理之后的图像数据分割为多个矩形块区域，并且对每个块区域进行DCT处理和量化处理。 这里，滤波区域由相邻的一组或多组矩形区域组成，每个矩形区域由通过将上述块区域等分2n（n是自然数）而获得的两个或更多个像素组成。

公开(公告)号：US07627180B2

公开(公告)日：2009-12-01

申请号：US10589555

申请日：2005-02-15

Applicant: Hiroshi Tabuchi ,  Akira Taguchi ,  Kazuhiro Shimauchi ,  Toshio Morohashi

Inventor： Hiroshi Tabuchi ,  Akira Taguchi ,  Kazuhiro Shimauchi ,  Toshio Morohashi

IPC: G06K9/36 ,  G06K9/46

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/124 ,  H04N19/14 ,  H04N19/17

Abstract: To improve the data compression ratio in the data compression/decompression method utilizing the down-sampling process. Image data in a DS area division unit (130) is divided into a plenty of DS areas and DS areas which are not important are converted into contracted data of the block size by down-sampling in a down-sampling unit (131). A relocation unit (132) allocates two or more contracted data in one DS area, inserts file data into the other portion in the DS area, and removes the DS area where no contracted data is allocated, thereby reducing the entire image size. The image data thus contracted is inputted into a JPEG encoder (14) and subjected to a DCT process and a quantization process for each block. When performing restoration, decompression is performed by the JPEG decoder and the original location is restored. As for the contracted data, interpolation is performed to restore the image data.

Abstract translation: 在采用下采样过程的数据压缩/解压缩方法中提高数据压缩率。 DS区域划分单元（130）中的图像数据被划分为大量的DS区域，并且不重要的DS区域在下采样单元（131）中通过下采样被转换为块大小的合同数据。 重定位单元（132）在一个DS区域中分配两个或多个收缩数据，将文件数据插入DS区域中的其他部分，并且去除没有分配数据的DS区域，从而减小整个图像大小。 如此收缩的图像数据被输入到JPEG编码器（14）中，并对每个块进行DCT处理和量化处理。 执行恢复时，JPEG解码器执行解压缩，并恢复原始位置。 对于合同数据，执行插值以恢复图像数据。