公开(公告)号：US08606007B2

公开(公告)日：2013-12-10

申请号：US13554201

申请日：2012-07-20

申请人： Takahiro Fukuhara ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Hitoshi Kiya

IPC分类号： G06K9/00

CPC分类号： G06T5/40 ,  G06K9/38 ,  G06T5/009 ,  H04N1/41 ,  H04N19/126 ,  H04N19/152 ,  H04N19/182

摘要： Provided is an image processing apparatus which includes a histogram generating unit that generates a histogram representing an appearance frequency distribution of a pixel value of an input image, and a quantization table generating unit that generates a quantization table including table information used to perform transform of a bit depth of the pixel value of the input image and table information used to allocate an effective pixel in which an appearance frequency in the histogram generated by the histogram generating unit is not zero to an index value after bit depth transform so that effective pixels are allocated to index values as equally as possible.

摘要翻译： 提供了一种图像处理装置，其包括直方图生成单元，其生成表示输入图像的像素值的出现频率分布的直方图，以及量化表生成单元，生成包括用于进行 输入图像的像素值的位深度和用于分配由直方图生成单元生成的直方图中的出现频率对于比特深度变换之后的索引值而不是零的有效像素的表信息，从而分配有效像素 以尽可能平均地索引值。

公开(公告)号：US07433541B2

公开(公告)日：2008-10-07

申请号：US10830668

申请日：2004-04-22

申请人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

IPC分类号： G06K9/36

CPC分类号： H04N19/40 ,  H04N19/63

摘要： In an image synthesizer (1), code stream analyzers (10, 11), code block extraction units (12, 13) and EBCOT decoders (14, 15) work together to decode encoded code streams (D10, D11) encoded according to the MPEG-2000 Standard and generate quantization coefficients (D16, D17) for each code block. In a cross-fading unit (16), multipliers (17, 18) multiply the quantization coefficients (D16, D17) by coefficients (α(t), (1−α(t))) and an adder (19) adds together the results of multiplication to provide a cross-fading quantization coefficient (D20). An EBCOT encoder (20), rate controller (21) and code stream generator (22) work together to encode the cross-fading quantization coefficient (D20) to provide a final encoded code stream (D23). Therefore, the image synthesizer (1) can combine two encoded code streams easily and effectively with a reduced use of a memory capacity.

摘要翻译： 在图像合成器（1）中，代码流分析器（10,11），代码块提取单元（12,13）和EBCOT解码器（14,15）一起工作以解码编码的代码流（D 10，D 11） 到MPEG-2000标准，并为每个码块生成量化系数（D 16，D 17）。 在交叉衰落单元（16）中，乘法器（17,18）将量化系数（D16，D17）乘以系数（α（t），（1-α（t）））和加法器（19） 将乘法结果相加，以提供交叉衰落量化系数（D 20）。 EBCOT编码器（20），速率控制器（21）和码流发生器（22）一起工作以对交叉衰落量化系数（D 20）进行编码以提供最终的编码码流（D23）。 因此，图像合成器（1）可以容易且有效地组合两个编码码流，同时减少对存储器容量的使用。

公开(公告)号：US08873871B2

公开(公告)日：2014-10-28

申请号：US13217730

申请日：2011-08-25

申请人： Takahiro Fukuhara ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Hitoshi Kiya

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/64 ,  H04N19/146 ,  H04N19/34 ,  H04N19/36 ,  H04N19/44 ,  H04N19/60 ,  H04N19/647 ,  H04N19/88 ,  H04N19/90

摘要： There is provided an image processing apparatus which includes a division unit dividing an image into a plurality of images in a bit depth direction, and an encoding unit encoding respectively some or all of the plurality of images acquired by dividing the image in the bit depth direction by the division unit.

摘要翻译： 提供了一种图像处理装置，其包括分割单元，其将图像分割成位深度方向上的多个图像，以及编码单元，分别编码通过在比特深度方向上划分图像而获取的多个图像中的一些或全部 由分部单位。

公开(公告)号：US08620075B2

公开(公告)日：2013-12-31

申请号：US13416629

申请日：2012-03-09

申请人： Takahiro Fukuhara ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Hitoshi Kiya

IPC分类号： G06K9/36

CPC分类号： H04N19/34 ,  H04N19/85

摘要： There is provided an image processing device which transforms an image with a bit depth of N into an upper layer with a bit depth of M and a remaining lower layer, including a histogram unit that generates histogram indicating occurrence frequency of each pixel value of an image with a bit depth of N, a table unit that generates a table listing pixel values of which occurrence frequency in the histogram generated by the histogram unit is equal to or more than one, a reordering unit that reorders an arrangement of values in the histogram using the table generated by the table unit, an update unit that updates the table generated by the table unit and the histogram reordered by the reordering unit; and an index image unit that generates an index image with a bit depth of N using the updated table and the updated histogram.

摘要翻译： 提供了一种图像处理装置，其将位深度为N的图像变换为具有位深度M的上层，剩下的下层包括直方图单元，其生成表示图像的每个像素值的出现频率的直方图 具有N个深度的表单元，其生成列出由直方图单元生成的直方图中的出现频率等于或者大于1的像素值的表格;重新排序单元，其使用 由所述表单元生成的表，更新由所述表单元生成的表和由所述重排序单元重新排序的所述直方图的更新单元; 以及索引图像单元，其使用更新的表和更新的直方图来生成位深度为N的索引图像。

公开(公告)号：US20110182525A1

公开(公告)日：2011-07-28

申请号：US13081552

申请日：2011-04-07

申请人： Takahiro FUKUHARA ,  Hitoshi Kiya

发明人： Takahiro FUKUHARA ,  Hitoshi Kiya

IPC分类号： G06K9/00

CPC分类号： G06K9/00711

摘要： An encoded code stream is searched for a frame generally coincident with a specific frame without having to decoding the frame to its original image. The present invention provides an image search device that searches an object encoded code stream formed by compression coding of a plurality of frames for a frame generally coincident with a specific one, which includes a decoder for making entropy decoding of the object encoded code stream to generate quantization coefficients of each frame, a matching unit for making matching between the quantization coefficients of the specific frame and those of each frame which are generated by the decoder and correspond in sample position to those of the specific frame, and a judging unit for judging, based on the result of matching, whether the frame is generally coincident with the specific one.

摘要翻译： 对编码的代码流进行搜索，而不需要将帧解码为其原始图像，该帧通常与特定帧重合。 本发明提供了一种图像搜索装置，其搜索与通常与特定帧一致的帧的多个帧的压缩编码形成的对象编码码流，该解码器包括用于进行对象编码码流的熵解码的解码器，以生成 每个帧的量化系数，用于使特定帧的量化系数与由解码器产生的每帧的量化系数与样本位置对应于特定帧的量化系数之间的匹配的匹配单元，以及判断单元， 基于匹配的结果，帧是否与特定帧一致。

公开(公告)号：US07298910B2

公开(公告)日：2007-11-20

申请号：US11230110

申请日：2005-09-19

申请人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

IPC分类号： G06K9/36

CPC分类号： H04N19/645 ,  H04N19/17 ,  H04N19/44 ,  H04N19/63

摘要： A wavelet inverse transform method includes a decoding object coefficient extracting step of extracting only coefficients necessary for decoding a specified area from wavelet transform coefficients, and a wavelet inverse transform step of inverse transforming coefficients extracted from the decoding object coefficient extracting step. The decoding object coefficient extracting step extracts transform coefficients not only inside the specified area but also those outside the specified area. This enables only an optional partial picture to be decoded without decoding the entire picture. A corresponding wavelet inverse transform device is also disclosed.

摘要翻译： 一种小波逆变换方法包括：解码对象系数提取步骤，从小波变换系数中提取仅对指定区域进行解码所必需的系数，以及从解码对象系数提取步骤提取的逆变换系数的小波逆变换步骤。 解码对象系数提取步骤不仅在指定区域内提取变换系数，而且提取指定区域之外的变换系数。 这使得只有可选的部分图像被解码而不解码整个图像。 还公开了相应的小波逆变换装置。

公开(公告)号：US06591017B1

公开(公告)日：2003-07-08

申请号：US09418389

申请日：1999-10-14

申请人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

IPC分类号： G06K936

CPC分类号： H04N19/635 ,  H04N19/122 ,  H04N19/44

摘要： An image signal encoded for compression using a wavelet transform as a transform system is to be decoded at a resolution corresponding to an optional rational number. To this end, the wavelet decoding device includes an entropy decoding unit 1 for entropy decoding an encoded bitstream 100, a dequantizing unit for dequantizing the quantized coefficients 101 to transmit transform coefficients 102, a transform coefficient back-scanning unit 3 for scanning the transform coefficients 102 in a pre-set fashion to re-array the transform coefficients, and an inverse wavelet transform unit 4 for inverse transforming the re-arrayed transformation coefficients 103 to furnish a decoded image 104. The inverse wavelet transform unit 4 adaptively constitutes an upsampler, a downsampler and a synthesis filter in dependence upon a pre-set resolution conversion factor.

摘要翻译： 以使用小波变换作为变换系统进行压缩编码的图像信号将以对应于可选有理数的分辨率进行解码。 为此，小波解码装置包括用于对编码比特流100进行熵解码的熵解码单元1，用于对量化系数101进行逆量化以发送变换系数102的去量化单元，用于扫描变换系数的变换系数反向扫描单元3 102，以重新排列变换系数的预设方式，以及用于对重新排列的变换系数103进行逆变换以提供解码图像104的逆小波变换单元4.逆小波变换单元4自适应地构成上采样器， 一个下采样器和一个根据预设分辨率转换因子的合成滤波器。

公开(公告)号：US08891882B2

公开(公告)日：2014-11-18

申请号：US13487862

申请日：2012-06-04

申请人： Takahiro Fukuhara ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Hitoshi Kiya

IPC分类号： G06K9/62 ,  G06K9/38 ,  H04N19/126 ,  H04N19/30

CPC分类号： G06K9/38 ,  H04N19/126 ,  H04N19/30

摘要： There is provided an image processing apparatus including a zero class detecting unit that detects a zero class in which an appearance frequency of a pixel value is zero from among a plurality of classes into which pixel values of an image are classified according to pixel value magnitude, and a non-zero class converting unit that converts the zero class into a non-zero class in which the appearance frequency of the pixel value is one or more, without updating a total number of the classes, by updating a range of the zero class detected by the zero class detecting unit. The present disclosure can be applied to an image processing apparatus.

摘要翻译： 提供一种图像处理装置，包括：零类检测单元，根据像素值大小，从图像的像素值中分类的多个等级中检测出像素值的出现频率为零的零类， 以及非零类转换单元，通过更新零类的范围，将零类转换为非零类，其中像素值的出现频率为一个或多个，而不更新类的总数 由零等级检测单元检测。 本公开可以应用于图像处理装置。

公开(公告)号：US07949042B2

公开(公告)日：2011-05-24

申请号：US11335307

申请日：2006-01-19

申请人： Takahiro Fukuhara ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Hitoshi Kiya

IPC分类号： H04N7/12

CPC分类号： G06K9/00711

摘要： An encoded code stream is searched for a frame generally coincident with a specific frame without having to decoding the frame to its original image. The present invention provides an image search device that searches an object encoded code stream formed by compression coding of a plurality of frames for a frame generally coincident with a specific one, which includes a decoder for making entropy decoding of the object encoded code stream to generate quantization coefficients of each frame, a matching unit for making matching between the quantization coefficients of the specific frame and those of each frame which are generated by the decoder and correspond in sample position to those of the specific frame, and a judging unit for judging, based on the result of matching, whether the frame is generally coincident with the specific one.

摘要翻译： 对编码的代码流进行搜索，而不需要将帧解码为其原始图像，该帧通常与特定帧重合。 本发明提供了一种图像搜索装置，其搜索与通常与特定帧一致的帧的多个帧的压缩编码形成的对象编码码流，该解码器包括用于进行对象编码码流的熵解码的解码器，以生成 每个帧的量化系数，用于使特定帧的量化系数与由解码器产生的每帧的量化系数与样本位置对应于特定帧的量化系数之间的匹配的匹配单元，以及判断单元， 基于匹配的结果，帧是否与特定帧一致。

公开(公告)号：US06968086B1

公开(公告)日：2005-11-22

申请号：US09579803

申请日：2000-05-26

申请人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

发明人： Takahiro Fukuhara ,  Seiji Kimura ,  Hitoshi Kiya

IPC分类号： H04N1/41 ,  G06K9/36 ,  H03M7/30 ,  H04N19/33 ,  H04N19/426 ,  H04N19/59 ,  H04N19/60 ,  H04N19/635 ,  H04N19/80 ,  H04N19/91

CPC分类号： H04N19/645 ,  H04N19/17 ,  H04N19/44 ,  H04N19/63

摘要： A wavelet inverse transform method includes a decoding object coefficient extracting step of extracting only coefficients necessary for decoding a specified area from wavelet transform coefficients, and a wavelet inverse transform step of inverse transforming coefficients extracted from the decoding object coefficient extracting step. The decoding object coefficient extracting step extracts transform coefficients not only inside the specified area but also those outside the specified area. This enables only an optional partial picture to be decoded without decoding the entire picture. A corresponding wavelet inverse transform device is also disclosed.

摘要翻译： 一种小波逆变换方法包括：解码对象系数提取步骤，从小波变换系数中提取仅对指定区域进行解码所必需的系数，以及从解码对象系数提取步骤提取的逆变换系数的小波逆变换步骤。 解码对象系数提取步骤不仅在指定区域内提取变换系数，而且提取指定区域之外的变换系数。 这使得只有可选的部分图像被解码而不解码整个图像。 还公开了相应的小波逆变换装置。