公开(公告)号：US20100142840A1

公开(公告)日：2010-06-10

申请号：US12620241

申请日：2009-11-17

申请人： Hiroshi Kajiwara ,  Yuki Shiraishi ,  Naoki Ito ,  Hirokazu Tamura

发明人： Hiroshi Kajiwara ,  Yuki Shiraishi ,  Naoki Ito ,  Hirokazu Tamura

IPC分类号： G06K9/36

CPC分类号： H04N19/59 ,  H04N19/12 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N19/587 ,  H04N19/60 ,  H04N19/70

摘要： Resolution interpolation data is generated by relatively simple processing. This enables image encoding by simple and quick processing to attain high image quality and high compression performance. To do this, a tile divider extracts tile data of 32×32 pixels from encoding target original image data. A resolution converter samples one pixel of a block of 2×2 pixels in the tile data, thereby generating reduced tile data of a reduced image. An interpolation data generator generates interpolation data to be used to generate tile data having the original resolution from the reduced tile data. Based on the interpolation data of a tile of interest, an encoding method selector outputs a control signal indicating which one of lossless encoding and lossy encoding should be executed for the reduced tile data. A code stream generator outputs the generated encoded data and interpolation data as encoded image data.

摘要翻译： 通过相对简单的处理生成分辨率插值数据。 这使得能够通过简单快速的处理实现图像编码，从而获得高图像质量和高压缩性能。 为此，瓦片分割器从编码目标原始图像数据中提取32×32像素的图块数据。 分辨率转换器对瓦片数据中的2×2像素的块的一个像素进行采样，从而生成缩小图像的减少的瓦片数据。 内插数据生成器生成用于从缩小的瓦片数据生成具有原始分辨率的瓦片数据的内插数据。 基于感兴趣的图块的内插数据，编码方法选择器输出指示对于缩小的瓦片数据应当执行哪一个无损编码和有损编码的控制信号。 代码流生成器将生成的编码数据和内插数据输出为编码图像数据。

公开(公告)号：US08331705B2

公开(公告)日：2012-12-11

申请号：US12620194

申请日：2009-11-17

申请人： Yuki Shiraishi ,  Hiroshi Kajiwara ,  Naoki Ito ,  Hirokazu Tamura

发明人： Yuki Shiraishi ,  Hiroshi Kajiwara ,  Naoki Ito ,  Hirokazu Tamura

IPC分类号： G06K9/36

CPC分类号： H04N1/41 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/70

摘要： This invention generates efficient encoded data to restore original image data from reduced image data. An input unit inputs block data of 2×2 pixels from original image data. A converter generates reduced image data having a size smaller than the original image data by sampling one pixel data at a preset position in the input block data. A generator generates encoded data to restore three non-sampling target pixel data in each block data so as to restore the original image data from the reduced image data generated by the resolution converter. To do this, the generator determines whether all non-sampling target pixels in a block of interest are restorable from a sampling target pixel in the block of interest or from sampling target pixels in three blocks adjacent to the block of interest, and generates and outputs three kinds of additional information based on the determination result.

摘要翻译： 本发明生成有效的编码数据，以从减少的图像数据恢复原始图像数据。 输入单元从原始图像数据输入2×2像素的块数据。 A转换器通过在输入块数据中的预设位置处采样一个像素数据来生成尺寸小于原始图像数据的缩小图像数据。 发生器产生编码数据以恢复每个块数据中的三个非采样目标像素数据，以便从分辨率转换器产生的缩小图像数据恢复原始图像数据。 为此，发生器确定感兴趣块中的所有非采样目标像素是否可以从感兴趣块中的采样目标像素或与感兴趣块相邻的三个块中的采样目标像素恢复，并且生成并输出 基于确定结果的三种附加信息。

公开(公告)号：US08396308B2

公开(公告)日：2013-03-12

申请号：US12620241

申请日：2009-11-17

申请人： Hiroshi Kajiwara ,  Yuki Shiraishi ,  Naoki Ito ,  Hirokazu Tamura

发明人： Hiroshi Kajiwara ,  Yuki Shiraishi ,  Naoki Ito ,  Hirokazu Tamura

IPC分类号： G06K9/36

CPC分类号： H04N19/59 ,  H04N19/12 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N19/587 ,  H04N19/60 ,  H04N19/70

摘要： Resolution interpolation data is generated by relatively simple processing. This enables image encoding by simple and quick processing to attain high image quality and high compression performance. To do this, a tile divider extracts tile data of 32×32 pixels from encoding target original image data. A resolution converter samples one pixel of a block of 2×2 pixels in the tile data, thereby generating reduced tile data of a reduced image. An interpolation data generator generates interpolation data to be used to generate tile data having the original resolution from the reduced tile data. Based on the interpolation data of a tile of interest, an encoding method selector outputs a control signal indicating which one of lossless encoding and lossy encoding should be executed for the reduced tile data. A code stream generator outputs the generated encoded data and interpolation data as encoded image data.

摘要翻译： 通过相对简单的处理生成分辨率插值数据。 这使得能够通过简单快速的处理实现图像编码，从而获得高图像质量和高压缩性能。 为此，瓦片分割器从编码目标原始图像数据中提取32×32像素的图块数据。 分辨率转换器对瓦片数据中的2×2像素的块的一个像素进行采样，从而生成缩小图像的减少的瓦片数据。 内插数据生成器生成用于从缩小的瓦片数据生成具有原始分辨率的瓦片数据的内插数据。 基于感兴趣的图块的内插数据，编码方法选择器输出指示对于缩小的瓦片数据应当执行哪一个无损编码和有损编码的控制信号。 代码流生成器将生成的编码数据和内插数据输出为编码图像数据。

公开(公告)号：US20100124380A1

公开(公告)日：2010-05-20

申请号：US12620194

申请日：2009-11-17

申请人： Yuki Shiraishi ,  Hiroshi Kajiwara ,  Naoki Ito ,  Hirokazu Tamura

发明人： Yuki Shiraishi ,  Hiroshi Kajiwara ,  Naoki Ito ,  Hirokazu Tamura

IPC分类号： G06K9/36 ,  G06K9/32

CPC分类号： H04N1/41 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/70

摘要： This invention generates efficient encoded data to restore original image data from reduced image data. An input unit inputs block data of 2×2 pixels from original image data. A converter generates reduced image data having a size smaller than the original image data by sampling one pixel data at a preset position in the input block data. A generator generates encoded data to restore three non-sampling target pixel data in each block data so as to restore the original image data from the reduced image data generated by the resolution converter. To do this, the generator determines whether all non-sampling target pixels in a block of interest are restorable from a sampling target pixel in the block of interest or from sampling target pixels in three blocks adjacent to the block of interest, and generates and outputs three kinds of additional information based on the determination result.

摘要翻译： 本发明生成有效的编码数据，以从减少的图像数据恢复原始图像数据。 输入单元从原始图像数据输入2×2像素的块数据。 A转换器通过在输入块数据中的预设位置处采样一个像素数据来生成尺寸小于原始图像数据的缩小图像数据。 发生器产生编码数据以恢复每个块数据中的三个非采样目标像素数据，以便从分辨率转换器产生的缩小图像数据恢复原始图像数据。 为此，发生器确定感兴趣块中的所有非采样目标像素是否可以从感兴趣块中的采样目标像素或与感兴趣块相邻的三个块中的采样目标像素恢复，并且生成并输出 基于确定结果的三种附加信息。

公开(公告)号：US08983219B2

公开(公告)日：2015-03-17

申请号：US13362625

申请日：2012-01-31

申请人： Hiroki Kishi ,  Yuki Shiraishi ,  Naoki Ito

发明人： Hiroki Kishi ,  Yuki Shiraishi ,  Naoki Ito

IPC分类号： G06K9/36 ,  G06K9/46 ,  H04N19/40 ,  H04N19/132 ,  H04N19/146 ,  H04N19/18 ,  H04N19/635

CPC分类号： H04N19/40 ,  H04N19/132 ,  H04N19/146 ,  H04N19/18 ,  H04N19/635

摘要： An image processing apparatus which re-encodes encoded data, encoded with a pixel block having a predetermined number of pixels as a coding unit, while suppressing degradation of image quality, with a higher compressibility. For this purpose, when an encoded-image-data input unit inputs JPEG encoded data with an 8×8 pixel block as a coding unit, a redundancy estimation unit performs encoding on the encoded data, and sets an encoded data amount obtained by the coding, as a target code amount for a recompressor to perform coding in accordance with JPEG 2000 coding. The inputted encoded data is decompressed by a decompressor, and the recompressor generates encoded data in the previously-determined target code amount. The code amount control is performed by deleting the encoded data in bit planes in an order from a least significant bit plane toward a high-order bit plane.

摘要翻译： 一种图像处理装置，其将具有预定数量的像素的像素块编码的编码数据重新编码为编码单元，同时以更高的可压缩性抑制图像质量的劣化。 为此，当编码图像数据输入单元输入具有8×8像素块的JPEG编码数据作为编码单位时，冗余度估计单元对编码数据进行编码，并且设定通过编码获得的编码数据量 ，作为再压缩器根据JPEG2000编码执行编码的目标代码量。 输入的编码数据由解压缩器解压缩，并且再压缩器以先前确定的目标代码量生成编码数据。 通过以从最低有效位平面朝向高位位平面的顺序删除位平面中的编码数据来执行码量控制。

公开(公告)号：US20120219234A1

公开(公告)日：2012-08-30

申请号：US13362625

申请日：2012-01-31

申请人： Hiroki Kishi ,  Yuki Shiraishi ,  Naoki Ito

发明人： Hiroki Kishi ,  Yuki Shiraishi ,  Naoki Ito

IPC分类号： G06K9/36

CPC分类号： H04N19/40 ,  H04N19/132 ,  H04N19/146 ,  H04N19/18 ,  H04N19/635

摘要： An image processing apparatus which re-encodes encoded data, encoded with a pixel block having a predetermined number of pixels as a coding unit, while suppressing degradation of image quality, with a higher compressibility. For this purpose, when an encoded-image-data input unit inputs JPEG encoded data with an 8×8 pixel block as a coding unit, a redundancy estimation unit performs encoding on the encoded data, and sets an encoded data amount obtained by the coding, as a target code amount for a recompressor to perform coding in accordance with JPEG 2000 coding. The inputted encoded data is decompressed by a decompressor, and the recompressor generates encoded data in the previously-determined target code amount. The code amount control is performed by deleting the encoded data in bit planes in an order from a least significant bit plane toward a high-order bit plane.

摘要翻译： 一种图像处理装置，其将具有预定数量的像素的像素块编码的编码数据重新编码为编码单元，同时以更高的可压缩性抑制图像质量的劣化。 为此，当编码图像数据输入单元输入具有8×8像素块的JPEG编码数据作为编码单位时，冗余度估计单元对编码数据进行编码，并且设定通过编码获得的编码数据量 ，作为再压缩器根据JPEG2000编码执行编码的目标代码量。 输入的编码数据由解压缩器解压缩，并且再压缩器以先前确定的目标代码量生成编码数据。 通过以从最低有效位平面朝向高位位平面的顺序删除位平面中的编码数据来执行码量控制。

公开(公告)号：US20100158401A1

公开(公告)日：2010-06-24

申请号：US12634256

申请日：2009-12-09

申请人： Yuki Shiraishi ,  Takeshi Yamazaki

发明人： Yuki Shiraishi ,  Takeshi Yamazaki

IPC分类号： G06K9/46

CPC分类号： G06K9/00228 ,  H04N19/119 ,  H04N19/17 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70

摘要： An encoding apparatus encodes an image by tile in a smallest possible size while suppresses segmentation of a specific region in the image into tiles. Vertical lines at left and right ends of n-th face region are defined as boundary candidate vertical lines Lh(n) and Lm(n), and horizontal lines at upper and lower ends of the n-th region, as boundary candidate horizontal lines Lu(n) and Ls(n). A divider determines a horizontal line of another region existing within the range of the horizontal lines Lu(n) and Ls(n) of the n-th region as a line to be deleted. Further, the divider determines a vertical line of another region existing within the range of the vertical lines Lh(n) and Lm(n) as a line to be deleted. This processing is performed to the final region, then image data is divided using horizontal and vertical lines except the lines determined as lines to be deleted.

摘要翻译： 编码装置以最小的可能尺寸对图像进行编码，同时抑制将图像中的特定区域分割为瓦片。 第n个面区域的左右端的垂直线被定义为边界候选垂直线Lh（n）和Lm（n），第n个区域的上端和下端的水平线作为边界候选水平线 Lu（n）和Ls（n）。 分割器确定存在于作为要删除的行的第n个区域的水平线Lu（n）和Ls（n）的范围内的另一区域的水平线。 此外，分割器确定存在于垂直线Lh（n）和Lm（n）的范围内的另一区域的垂直线作为要删除的线。 对最终区域执行该处理，然后使用除了被确定为要删除的行的行之外的水平和垂直线分割图像数据。

公开(公告)号：US20100054591A1

公开(公告)日：2010-03-04

申请号：US12547292

申请日：2009-08-25

申请人： Yuki Shiraishi

发明人： Yuki Shiraishi

IPC分类号： G06K9/38 ,  G06K9/03

CPC分类号： G06T11/001

摘要： An image processing apparatus includes an input unit for inputting image data, an attribute information generation unit for generating attribute information about each pixel of the image data, a block division unit for dividing the image data into a plurality of blocks of a predetermined size, a histogram generation unit for generating a histogram of colors and the number of pixels of each color existing in a focused block divided by the division unit, and a color replacement unit, if it is not determined that the area having the focused color is a significant area, for replacing a color of a pixel existing within the area having the focused color with a different color so that the color of the area having the focused color becomes the same as the color of another area contacting the area having the focused color and having the different color according to a predetermined condition.

摘要翻译： 一种图像处理装置，包括用于输入图像数据的输入单元，用于生成关于图像数据的每个像素的属性信息的属性信息生成单元，用于将图像数据分割成多个预定尺寸的块的块分割单元， 直方图生成单元，用于生成颜色的直方图和存在于由分割单元分割的聚焦块中的每种颜色的像素数量;以及颜色替换单元，如果不确定具有聚焦颜色的区域是显着区域 用于用不同的颜色替换存在于具有聚焦颜色的区域内的像素的颜色，使得具有聚焦颜色的区域的颜色变得与接触具有聚焦颜色的区域的另一区域的颜色相同，并且具有 根据预定条件不同的颜色。

公开(公告)号：US08774511B2

公开(公告)日：2014-07-08

申请号：US12547292

申请日：2009-08-25

申请人： Yuki Shiraishi

发明人： Yuki Shiraishi

IPC分类号： G06K9/34 ,  G06K9/00 ,  G06K9/46

CPC分类号： G06T11/001

摘要： An image processing apparatus includes an input unit for inputting image data, an attribute information generation unit for generating attribute information about each pixel of the image data, a block division unit for dividing the image data into a plurality of blocks of a predetermined size, a histogram generation unit for generating a histogram of colors and the number of pixels of each color existing in a focused block divided by the division unit, and a color replacement unit, if it is not determined that the area having the focused color is a significant area, for replacing a color of a pixel existing within the area having the focused color with a different color so that the color of the area having the focused color becomes the same as the color of another area contacting the area having the focused color and having the different color according to a predetermined condition.

摘要翻译： 一种图像处理装置，包括用于输入图像数据的输入单元，用于生成关于图像数据的每个像素的属性信息的属性信息生成单元，用于将图像数据分割成多个预定尺寸的块的块分割单元， 直方图生成单元，用于生成颜色的直方图和存在于由分割单元分割的聚焦块中的每种颜色的像素数量;以及颜色替换单元，如果不确定具有聚焦颜色的区域是显着区域 用于用不同的颜色替换存在于具有聚焦颜色的区域内的像素的颜色，使得具有聚焦颜色的区域的颜色变得与接触具有聚焦颜色的区域的另一区域的颜色相同，并且具有 根据预定条件不同的颜色。

公开(公告)号：US08577096B2

公开(公告)日：2013-11-05

申请号：US12634256

申请日：2009-12-09

申请人： Yuki Shiraishi ,  Takeshi Yamazaki

发明人： Yuki Shiraishi ,  Takeshi Yamazaki

IPC分类号： G06K9/34

CPC分类号： G06K9/00228 ,  H04N19/119 ,  H04N19/17 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70

摘要： An encoding apparatus encodes an image by tile in a smallest possible size while suppresses segmentation of a specific region in the image into tiles. Vertical lines at left and right ends of n-th face region are defined as boundary candidate vertical lines Lh(n) and Lm(n), and horizontal lines at upper and lower ends of the n-th region, as boundary candidate horizontal lines Lu(n) and Ls(n). A divider determines a horizontal line of another region existing within the range of the horizontal lines Lu(n) and Ls(n) of the n-th region as a line to be deleted. Further, the divider determines a vertical line of another region existing within the range of the vertical lines Lh(n) and Lm(n) as a line to be deleted. This processing is performed to the final region, then image data is divided using horizontal and vertical lines except the lines determined as lines to be deleted.

摘要翻译： 编码装置以最小的可能尺寸对图像进行编码，同时抑制将图像中的特定区域分割为瓦片。 第n个面区域的左右端的垂直线被定义为边界候选垂直线Lh（n）和Lm（n），第n个区域的上端和下端的水平线作为边界候选水平线 Lu（n）和Ls（n）。 分割器确定存在于作为要删除的行的第n个区域的水平线Lu（n）和Ls（n）的范围内的另一区域的水平线。 此外，分割器确定存在于垂直线Lh（n）和Lm（n）的范围内的另一区域的垂直线作为要删除的线。 对最终区域执行该处理，然后使用除了被确定为要删除的行的行之外的水平和垂直线分割图像数据。