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1. 发明授权

US06847735B2 Image processing system, image processing apparatus, image input apparatus, image output apparatus and method, and storage medium 有权
标题翻译：图像处理系统，图像处理装置，图像输入装置，图像输出装置和方法以及存储介质
公开(公告)号：US06847735B2
公开(公告)日：2005-01-25
申请号：US09875011
申请日：2001-06-07
申请人： Hiroshi Kajiwara , Makoto Sato , Hiroki Kishi
发明人： Hiroshi Kajiwara , Makoto Sato , Hiroki Kishi
IPC分类号： G06T9/00 , G06K9/36
CPC分类号： G06T9/007
摘要： This invention has as its object to attain efficient encoding/decoding even when the processing time, memory, arithmetic cost, and the like of an apparatus are limited.Encoded image data is input to an image processing apparatus (1) to obtain transform coefficients of subbands. The transform coefficients required to decode an image from its head position line by line are encoded by Golomb coding using one line of a subband as a unit to generate a code sequence, which is output to an image output apparatus (2). The image output apparatus (2) reconstructs an image by decoding the Golomb encoded data, dequantizing the coefficients, and computing the inverse discrete wavelet transforms of the coefficients, and outputs the reconstructed image.
摘要翻译：本发明的目的在于，即使在设备的处理时间，存储器，算术成本等受到限制的情况下，也可以实现有效的编码/解码。将图像数据输入到图像处理装置（1），获得变换系数子带逐行解码图像的头部位置所需的变换系数由Golomb编码，使用一行子带作为单位进行编码，生成代码序列，输出到图像输出装置（2）。图像输出装置（2）通过对Golomb编码数据进行解码，对系数进行去量化，并计算系数的逆离散小波变换来重构图像，并输出重构图像。

2. 发明授权

US06879726B2 Image processing method, apparatus and storage medium 失效
标题翻译：图像处理方法，装置和存储介质
公开(公告)号：US06879726B2
公开(公告)日：2005-04-12
申请号：US09793538
申请日：2001-02-27
申请人： Makoto Sato , Hiroshi Kajiwara , Hiroki Kishi
发明人： Makoto Sato , Hiroshi Kajiwara , Hiroki Kishi
IPC分类号： H04N5/92 , G06T1/60 , G06T9/00 , H03M7/30 , H04N1/41 , H04N19/13 , H04N19/149 , H04N19/176 , H04N19/196 , H04N19/34 , H04N19/423 , H04N19/426 , H04N19/60 , H04N19/63 , H04N19/91 , G06K9/46
CPC分类号： G06T1/60 , G06T9/007
摘要： An image processing apparatus includes a wavelet transformation unit for wavelet-transforming input image data on a per-image basis, and an encoder for changing transformation coefficients, which have been obtained by the transformation, to bit planes from higher- to lower-order bits, and encoding the bit planes one bit plane at a time. A code-quantity prediction unit determines whether all encoded data of each of the image data that have been encoded can be stored in the memory when the encoded data obtained by the encoder is stored in the memory image by image. If all of the encoded data cannot be stored, the encoded data that overflows the memory is divided and the divided encoded data is stored in the memory by writing the divided encoded data equally over storage areas of the lower-order bit planes of each of the image.
摘要翻译：一种图像处理装置包括：用于将基于每个图像的输入图像数据进行小波变换的小波变换单元和用于将由变换获得的变换系数改变为从高位到低位的位平面的编码器并且一次编码位平面一位平面。当由编码器获得的编码数据以图像存储在存储器图像中时，码量预测单元确定已经编码的每个图像数据的所有编码数据是否可以存储在存储器中。如果所有的编码数据都不能被存储，那么溢出存储器的编码数据被划分，并且分割的编码数据被存储在存储器中，通过将划分的编码数据在每个的低位位平面的存储区域上相等地写入图片。

3. 发明授权

US06917716B2 Image processing apparatus and method and storage medium 失效
标题翻译：图像处理装置及方法及存储介质
公开(公告)号：US06917716B2
公开(公告)日：2005-07-12
申请号：US09730389
申请日：2000-12-06
申请人： Hiroshi Kajiwara , Makoto Sato , Hiroki Kishi
发明人： Hiroshi Kajiwara , Makoto Sato , Hiroki Kishi
IPC分类号： H04N19/60 , H03M7/30 , H04N1/41 , H04N19/423 , H04N19/46 , H04N19/63 , H04N19/70 , H04N19/88 , H04N19/91 , G06K9/36 , G06K9/46
CPC分类号： H04N19/36 , H04N19/186 , H04N19/1883 , H04N19/63 , H04N19/64 , H04N19/70
摘要： A system which can efficiently compress any one of a multivalue image and a binary image and can preferably keep a high picture quality is provided. To accomplish this object, the system has means for generating conversion coefficients of M values by converting input image data by a first system, means for generating conversion coefficients of N values (N>M) by converting the input image data by a second system and means for outputting first information showing a position where a significant conversion coefficient exists in a block constructed by the conversion coefficients of M values or the conversion coefficients of N values and second information showing the significant conversion coefficient. Block division information which is generated by a block dividing process as an element technique of the image encoding system is efficiently entropy encoded. To accomplish it, the system has means for outputting division information showing whether each of a plurality of blocks including an encoding subject block has further been divided into a plurality of blocks or not and means for entropy encoding the division information corresponding to the encoding subject block on the basis of a presumption probability according to a division situation of a neighboring block of the encoding subject block.
摘要翻译：可以提供可以有效地压缩多值图像和二值图像中的任何一个并且可以优选地保持高图像质量的系统。为了实现该目的，该系统具有通过第一系统转换输入图像数据来产生M值的转换系数的装置，用于通过用第二系统转换输入图像数据来产生N个值（N> M）的转换系数的装置，以及用于输出表示在由M值的转换系数或N值的转换系数构成的块中存在显着转换系数的位置的第一信息的装置，以及表示显着转换系数的第二信息。通过作为图像编码系统的元素技术的块分割处理生成的块分割信息被有效地熵编码。为了完成它，系统具有输出分割信息的装置，该分割信息表示包括编码对象块的多个块中的每一个是否进一步被划分成多个块，以及用于对与编码对象块对应的划分信息进行熵编码的装置基于根据编码对象块的相邻块的分割情况的推测概率。

4. 发明授权

US06879727B2 Decoding bit-plane-encoded data using different image quality for display 失效
标题翻译：使用不同的图像质量对位平面编码的数据进行解码以进行显示
公开(公告)号：US06879727B2
公开(公告)日：2005-04-12
申请号：US09818560
申请日：2001-03-28
申请人： Makoto Sato , Hiroshi Kajiwara , Hiroki Kishi
发明人： Makoto Sato , Hiroshi Kajiwara , Hiroki Kishi
IPC分类号： G06T9/00 , H03M7/30 , H03M7/40 , H04N1/41 , H04N19/34 , H04N19/60 , H04N19/63 , H04N19/85 , H04N19/91 , G06K9/36
CPC分类号： H04N19/1883 , H04N19/136 , H04N19/162 , H04N19/17 , H04N19/63
摘要： An image processing apparatus includes an encoding section and a decoding section. The encoding section includes means for encoding an input image to generate encoded data, means for receiving a designation of an image quality for display of the input image, and means for outputting, of the encoded data, encoded data necessary to display the input image at an image quality equal to or higher than the designated image quality. The decoding section includes means for decoding the encoded data output from the encoding section to generate image data, and means for, when an image based on the image data has an image quality higher than the designated image quality, converting the image data into image data having the designated image quality.
摘要翻译：图像处理装置包括编码部分和解码部分。编码部分包括用于编码输入图像以产生编码数据的装置，用于接收用于显示输入图像的图像质量的指定的装置，以及用于将编码数据输出到显示输入图像所需的编码数据的装置等于或高于指定图像质量的图像质量。解码部分包括用于解码从编码部分输出的编码数据以产生图像数据的装置，以及用于当基于图像数据的图像具有高于指定图像质量的图像质量时，将图像数据转换成图像数据的装置具有指定的图像质量。

5. 发明授权

US06947600B1 Information processing method, apparatus and storage medium for receiving and decoding a code sequence obtained by encoding an image 失效
标题翻译：信息处理方法，装置和存储介质，用于接收和解码通过编码图像而获得的码序列
公开(公告)号：US06947600B1
公开(公告)日：2005-09-20
申请号：US09702764
申请日：2000-11-01
申请人： Makoto Sato , Hiroshi Kajiwara , Hiroki Kishi
发明人： Makoto Sato , Hiroshi Kajiwara , Hiroki Kishi
IPC分类号： H04N19/60 , G06K9/36 , H04N1/41 , H04N19/124 , H04N19/134 , H04N19/136 , H04N19/157 , H04N19/33 , H04N19/34 , H04N19/44 , H04N19/46 , H04N19/63 , H04N19/70 , H04N19/91
CPC分类号： H04N19/44 , H04N19/129 , H04N19/63 , H04N19/647
摘要： An entropy decoder receives a code sequence which is obtained by breaking up coefficients that have undergone discrete wavelet transformation into bit planes, and encoding the bit planes, and entropy-decodes the code sequence. A correction value computing unit determines correction values used to correct dequantized values in a dequantizer in accordance with the number of quantization indices decoded by the entropy decoder. The dequantizer receives the quantization indices decoded by the entropy decoder, and generates a series of coefficient sequences that represent an image by correcting and dequantizing the quantization indices on the basis of the values of the quantization indices and the correction values obtained by the correction value computing unit. A predetermined inverse discrete wavelet transformer restores an image by computing the inverse transforms of the coefficient sequences obtained by the dequantizer, and outputs the restored image to an image output unit.
摘要翻译：熵解码器接收通过将经过离散小波变换的系数分解为位平面并对位平面进行编码而获得的代码序列，并对代码序列进行熵解码。校正值计算单元根据由熵解码器解码的量化索引的数量来确定用于在去量化器中校正去量化值的校正值。去量化器接收由熵解码器解码的量化指标，并且通过基于量化索引的值和通过校正值计算获得的校正值来生成表示图像的一系列系数序列，该量化索引通过校正和去量化量化索引单元。预定的反离散小波变换器通过计算由逆量化器获得的系数序列的逆变换来恢复图像，并将恢复的图像输出到图像输出单元。

6. 发明授权

US07822282B2 Moving image coding apparatus, moving image decoding apparatus, control method therefor, computer program, and computer-readable storage medium 有权
标题翻译：运动图像编码装置，运动图像解码装置，其控制方法，计算机程序和计算机可读存储介质
公开(公告)号：US07822282B2
公开(公告)日：2010-10-26
申请号：US10587900
申请日：2005-03-11
申请人： Hiroshi Kajiwara , Mitsuru Maeda , Masaki Suzuki , Hiroki Kishi
发明人： Hiroshi Kajiwara , Mitsuru Maeda , Masaki Suzuki , Hiroki Kishi
IPC分类号： G06K9/46
CPC分类号： H04N19/64 , H04N19/169 , H04N19/17 , H04N19/184 , H04N19/46 , H04N19/61 , H04N19/63
摘要： This technique prevents errors from being gradually accumulated on the decoding side, while maintaining high scalability, even when transformation to subbands as a plurality of frequency components is used for moving image coding. The image data of one input frame is decomposed into a plurality of subbands having different frequency components by a discrete wavelet transformation unit. A lower bitplane coding unit codes, for each bitplane, predetermined lower bits of each coefficient data of a subband LL and the coefficient data of subbands other than the subband LL. The data of the upper bits of the subband LL is stored in a frame memory. A motion vector detection unit detects a predicted value and motion vector on the basis of the decoded data of the subband LL in a preceding frame. A subtracter obtains the difference between the detected predicted value and the current frame.
摘要翻译：即使在将多个频率成分的子带变换为运动图像编码的情况下，也能够在维持高的可扩展性的同时，防止错误逐渐积累在解码侧。一个输入帧的图像数据通过离散小波变换单元被分解成具有不同频率分量的多个子带。低位平面编码单元针对每个位平面编码子带LL的每个系数数据的预定低位和子带LL以外的子带的系数数据。子带LL的高位的数据被存储在帧存储器中。运动矢量检测单元基于前一帧中的子带LL的解码数据来检测预测值和运动矢量。减法器获得检测到的预测值与当前帧之间的差值。

7. 发明授权

US07574063B2 Image coding method and apparatus 失效
标题翻译：图像编码方法及装置
公开(公告)号：US07574063B2
公开(公告)日：2009-08-11
申请号：US10895385
申请日：2004-07-21
申请人： Hiroshi Kajiwara , Hiroki Kishi
发明人： Hiroshi Kajiwara , Hiroki Kishi
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/192 , H04N19/115 , H04N19/132 , H04N19/146 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/63 , H04N19/647
摘要： To reduce the computation cost of rate/distortion optimization in image compression, the rate/distortion gradient of a frame of interest is classified to m categories. A category information creating unit acquires a threshold λ for a preceding frame as a predictive value λ′ for the frame of interest that is to be coded, and further finely segments a category in which the predictive value λ′ is included. A code amount is then calculated for each of n categories that include the predictive value λ′. A code sequence forming unit selects a category having a target rate, and searches for a threshold between an upper and a lower limit value of the category. A value (S) at the end of the processing is selected as the threshold λ, and a code sequence is formed by using the threshold λ.
摘要翻译：为了降低图像压缩中速率/失真优化的计算成本，将感兴趣的帧的速率/失真梯度分类为m个类别。类别信息创建单元获取用于前一帧的阈值λ作为要编码的关注帧的预测值λ'，并且进一步精细地分割其中包含预测值λ'的类别。然后为包括预测值λ'的n个类别中的每一个计算代码量。代码序列形成单元选择具有目标速率的类别，并且搜索类别的上限值和下限值之间的阈值。选择处理结束时的值（S）作为阈值λ，并且通过使用阈值λ形成代码序列。

8. 发明申请

US20050100226A1 Image coding method and apparatus 失效
标题翻译：图像编码方法及装置
公开(公告)号：US20050100226A1
公开(公告)日：2005-05-12
申请号：US10895385
申请日：2004-07-21
申请人： Hiroshi Kajiwara , Hiroki Kishi
发明人： Hiroshi Kajiwara , Hiroki Kishi
IPC分类号： G06K9/36 , H04N7/26
CPC分类号： H04N19/192 , H04N19/115 , H04N19/132 , H04N19/146 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/63 , H04N19/647
摘要： There are provided an image coding method and apparatus which can properly reduce the computation cost required for rate/distortion optimization processing in image coding at the time of image compression. First of all, the rate/distortion gradient of a frame of interest is classified to m categories. A category information creating unit (101) acquires a threshold λ for a preceding frame from a predictive value storage unit (104) as a predictive value λ′ for the frame of interest when the frame of interest is to be coded, and further finely segments a category in which the predictive value λ′ is included. A code amount is then calculated for each of n categories in which the predictive value λ′ is included. A code sequence forming unit (103) selects a category having a target rate, and searches for a threshold between an upper limit value Tn(x-1) and lower limit value Tn(x) of the category. S at the end of the processing is selected as the threshold λ, and a code sequence is formed by using the threshold λ.
摘要翻译：提供了一种图像编码方法和装置，其可以在图像压缩时适当地降低图像编码中的速率/失真优化处理所需的计算成本。首先，感兴趣的帧的速率/失真梯度被分类为m个类别。类别信息创建单元（101）从预测值存储单元（104）获取用于前一帧的阈值λ，作为要被编码的关注帧的感兴趣帧的预测值λ'，并且进一步细分段包含预测值λ'的类别。然后，对于其中包括预测值λ'的n个类别中的每一个，计算代码量。代码序列形成单元（103）选择具有目标速率的类别，并且搜索类别的上限值Tn（x-1）和下限值Tn（x）之间的阈值。选择处理结束时的S作为阈值λ，并且通过使用阈值λ形成代码序列。

9. 发明申请

US20080089413A1 Moving Image Encoding Apparatus And Moving Image Encoding Method 审中-公开
标题翻译：运动图像编码装置和运动图像编码方法
公开(公告)号：US20080089413A1
公开(公告)日：2008-04-17
申请号：US11571187
申请日：2005-06-23
申请人： Hiroki Kishi , Hiroshi Kajiwara
发明人： Hiroki Kishi , Hiroshi Kajiwara
IPC分类号： H04N7/50 , H04N7/32
CPC分类号： H04N19/17 , H04N19/105 , H04N19/61 , H04N19/63 , H04N19/647
摘要： An encoding unit that encodes a moving image using inter-frame motion prediction segments each frame into a plurality of segmented regions (302), and determines a region of interest from a frame to be decoded (317). The encoding unit (310) retrieves a pixel set, from the region of interest of the previous or succeeding frame, having high correlation to each segmented region of the frame to be encoded, calculates the difference between the data of each segmented region and data of the retrieved pixel set, and outputs difference data (314). Then, the encoding unit encodes the difference data (303, 306).
摘要翻译：一种编码单元，其使用帧间运动预测对运动图像进行编码，将每帧分割成多个分割区域（302），并且从要解码的帧确定感兴趣区域（317）。编码单元（310）从先前或后续帧的感兴趣区域检索与要编码的帧的每个分段区域具有高相关性的像素集合，计算每个分段区域的数据与每个分割区域的数据之间的差异检索出的像素集合，并输出差分数据（314）。然后，编码单元编码差分数据（303,306）。

10. 发明申请

US20070160299A1 Moving image coding apparatus, moving image decoding apparatus, control method therefor, computer program, and computer-readable storage medium 有权
标题翻译：运动图像编码装置，运动图像解码装置，其控制方法，计算机程序和计算机可读存储介质
公开(公告)号：US20070160299A1
公开(公告)日：2007-07-12
申请号：US10587900
申请日：2005-03-11
申请人： Hiroshi Kajiwara , Mitsuru Maeda , Masaki Suzuki , Hiroki Kishi
发明人： Hiroshi Kajiwara , Mitsuru Maeda , Masaki Suzuki , Hiroki Kishi
IPC分类号： G06K9/46
CPC分类号： H04N19/64 , H04N19/169 , H04N19/17 , H04N19/184 , H04N19/46 , H04N19/61 , H04N19/63
摘要： This invention provides a technique of preventing errors from being gradually accumulated on the decoding side, while maintaining high scalability, even when a technique for transformation to subbands as a plurality of frequency components, like discrete wavelet transformation, is used for moving image coding. The image data of one input frame is decomposed into a plurality of subbands having different frequency components by a discrete wavelet transformation unit (101). A lower bitplane coding unit (109) codes, for each bitplane, predetermined lower bits of each coefficient data of a subband LL and the coefficient data of subbands other than the subband LL. The data of the upper bits of the subband LL is stored in a frame memory (105). A motion vector detection unit (107) detects a predicted value and motion vector on the basis of the decoded data of the subband LL in a preceding frame. A subtracter (103) obtains the difference between the detected predicted value and the current frame. A coefficient coding unit (104) codes the obtained difference. A motion vector coding unit (108) codes the motion vector. A multiplexing unit (111) multiplexes the code data obtained by the coding units (104, 108, 109).
摘要翻译：本发明提供了一种防止错误逐渐积累在解码侧的技术，同时保持高的可扩展性，即使将用于变换为多个频率分量的子带（如离散小波变换）的变换技术用于运动图像编码也是如此。通过离散小波变换单元（101）将一个输入帧的图像数据分解成具有不同频率分量的多个子带。低位平面编码单元（109）针对每个位平面编码子带LL的每个系数数据的预定低位和除子带LL之外的子带的系数数据。子带LL的高位的数据被存储在帧存储器（105）中。运动矢量检测单元（107）根据前一帧中的子带LL的解码数据来检测预测值和运动矢量。减法器（103）获得检测到的预测值与当前帧之间的差。系数编码单元（104）对获得的差值进行编码。运动矢量编码单元（108）对运动矢量进行编码。复用单元（111）对由编码单元（104,108,109）获得的编码数据进行复用。

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