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公开(公告)号：US5416854A
公开(公告)日：1995-05-16
申请号：US738236
申请日：1991-07-30
CPC分类号： G06F17/147 , H04N19/122 , H04N19/126 , H04N19/15 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/42 , H04N19/61 , H04N19/124 , H04N19/13 , H04N19/60 , H04N19/91
摘要： The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each including N.times.N picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process. Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.
摘要翻译： 本发明涉及一种图像数据重建装置，用于通过将图像数据分割成包括N×N个像素的多个块来重构原始图像，对每个所述块执行二维正交变换，对所述变换的结果进行量化和编码 对所述编码结果进行解码，对所述结果进行去量化和二维逆正交变换，其中如果在执行二维逆正交变换时检测到乘以零，则与所述乘法相关联的操作被跳过。 在执行解量化之前，在执行二维逆正交变换之前或之后提供两个块体积的缓冲器用于执行流水线处理。 此外，通过重复两次一维逆正交变换和矩阵转置的处理来执行二维逆正交变换，因此作为存储在缓冲器中的一维逆正交变换的结果执行矩阵转置。
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公开(公告)号：US06549667B1
公开(公告)日：2003-04-15
申请号：US09246966
申请日：1999-02-09
IPC分类号： G06K936
CPC分类号： G06F17/147 , H04N19/122 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/15 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/42 , H04N19/60 , H04N19/61 , H04N19/91
摘要： The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising N×N picture elements, performing two-dimensional orthogonal transform on each of the blocks, quantizing and encoding the result of the two-dimensional orthogonal transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process. Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.
摘要翻译： 本发明涉及一种图像数据重构装置，用于通过将图像数据分割成包括N×N个像素的多个块来重构原始图像，对每个块执行二维正交变换，对两个结果进行量化和编码 解码编码结果，去量化和二维逆正交变换上述结果，其中如果在执行二维逆正交变换时检测到乘以零，则与乘法相关联的操作被跳过。 在执行解量化之前，在执行二维逆正交变换之前或之后提供两个块体积的缓冲器用于执行流水线处理。 此外，通过重复两次一维逆正交变换和矩阵转置的处理来执行二维逆正交变换，因此作为存储在缓冲器中的一维逆正交变换的结果执行矩阵转置。
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公开(公告)号：US5933533A
公开(公告)日：1999-08-03
申请号：US832962
申请日：1997-04-04
CPC分类号： H04N19/42 , H04N19/122 , H04N19/126 , H04N19/15 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/61 , H04N19/124 , H04N19/13 , H04N19/91
摘要： The present invention relates to an image data reconstructing appatatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising NXN picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process. Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.
摘要翻译： 本发明涉及一种图像数据重建应用，用于通过将图像数据划分为包括NXN图像元素的多个块来重建原始图像，对每个所述块执行二维正交变换，对所述变换的结果进行量化和编码 对所述编码结果进行解码，对所述结果进行去量化和二维逆正交变换，其中如果在执行二维逆正交变换时检测到乘以零，则与所述乘法相关联的操作被跳过。 在执行解量化之前，在执行二维逆正交变换之前或之后提供两个块体积的缓冲器用于执行流水线处理。 此外，通过重复两次一维逆正交变换和矩阵转置的处理来执行二维逆正交变换，因此作为存储在缓冲器中的一维逆正交变换的结果执行矩阵转置。
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公开(公告)号：US5875266A
公开(公告)日：1999-02-23
申请号：US828562
申请日：1997-03-31
CPC分类号： H04N19/42 , H04N19/122 , H04N19/126 , H04N19/15 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/61 , H04N19/124 , H04N19/13 , H04N19/91
摘要： The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising NXN picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process.Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.
摘要翻译： 本发明涉及一种图像数据重建装置，用于通过将图像数据分割成包括NXN图像元素的多个块来重构原始图像，对每个所述块执行二维正交变换，对所述变换的结果进行量化和编码 对所述编码结果进行解码，对所述结果进行去量化和二维逆正交变换，其中如果在执行二维逆正交变换时检测到乘以零，则与所述乘法相关联的操作被跳过。 在执行解量化之前，在执行二维逆正交变换之前或之后提供两个块体积的缓冲器用于执行流水线处理。 此外，通过重复两次一维逆正交变换和矩阵转置的处理来执行二维逆正交变换，因此作为存储在缓冲器中的一维逆正交变换的结果执行矩阵转置。
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公开(公告)号：US07142720B1
公开(公告)日：2006-11-28
申请号：US08248516
申请日：1994-05-24
IPC分类号： G06K9/36
摘要： The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising NXN picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process.Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.
摘要翻译： 本发明涉及一种图像数据重建装置，用于通过将图像数据分割成包括NXN图像元素的多个块来重构原始图像，对每个所述块执行二维正交变换，对所述变换的结果进行量化和编码 对所述编码结果进行解码，对所述结果进行去量化和二维逆正交变换，其中如果在执行二维逆正交变换时检测到乘以零，则与所述乘法相关联的操作被跳过。 在执行解量化之前，在执行二维逆正交变换之前或之后提供两个块体积的缓冲器用于执行流水线处理。 此外，通过重复两次一维逆正交变换和矩阵转置的处理来执行二维逆正交变换，因此作为存储在缓冲器中的一维逆正交变换的结果执行矩阵转置。
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公开(公告)号：US5933538A
公开(公告)日：1999-08-03
申请号：US834769
申请日：1997-04-03
CPC分类号： H04N19/42 , H04N19/126 , H04N19/154 , H04N19/60 , H04N19/61 , H04N19/124 , H04N19/13 , H04N19/91
摘要： The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising N.times.N picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process. Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.
摘要翻译： 本发明涉及一种图像数据重建装置，用于通过将图像数据划分成包括N×N个像素的多个块来重构原始图像，对每个所述块执行二维正交变换，对所述变换的结果进行量化和编码 对所述编码结果进行解码，对所述结果进行去量化和二维逆正交变换，其中如果在执行二维逆正交变换时检测到乘以零，则与所述乘法相关联的操作被跳过。 在执行解量化之前，在执行二维逆正交变换之前或之后提供两个块体积的缓冲器用于执行流水线处理。 此外，通过重复两次一维逆正交变换和矩阵转置的处理来执行二维逆正交变换，因此作为存储在缓冲器中的一维逆正交变换的结果执行矩阵转置。
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公开(公告)号：US5588075A
公开(公告)日：1996-12-24
申请号：US233421
申请日：1994-04-28
申请人： Hirotaka Chiba , Kimitaka Murashita , Tsugio Noda
发明人： Hirotaka Chiba , Kimitaka Murashita , Tsugio Noda
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N19/00 , H04N19/102 , H04N19/129 , H04N19/134 , H04N19/136 , H04N19/137 , H04N19/146 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/196 , H04N19/36 , H04N19/423 , H04N19/46 , H04N19/60 , H04N19/625 , H04N19/70 , H04N19/85 , H04N19/86 , H04N19/91 , G06K9/36
CPC分类号： G06T9/007
摘要： A method and apparatus for encoding and decoding image data in which continuous still images are compressed and decompressed. The apparatus divides a plurality of multivalue image data into blocks each comprising a plurality of pixels, the pixels in the block are orthogonal converted and compressed, and the original image data is decompressed from the encoded data. The apparatus detects the block having an image change as an effective block. For a macro block including a plurality of effective blocks, a compressing order of the macro blocks is decided by the order according to appearance frequencies of the effective blocks or a predetermined order and the image data is compressed every macro block. As encoded data, the order information and code information of the macro block are sequentially transmitted. In this instance, the code amount is monitored. When the code amount exceeds a predetermined threshold value, the compression is stopped and the compression of the next image is performed. The encoded data is sequentially sent to the decompressing side and is decompressed in accordance with the order from the macro block of a portion of large change in the image. Even when the compression is stopped during the image processing because of a limitation of a code transmission amount, the image is reconstructed from the portion to which a person more carefully observes, so that a discrete motion or a background block noise does not occur.
摘要翻译： 用于对连续静止图像进行压缩和解压缩的图像数据进行编码和解码的方法和装置。 该装置将多个多值图像数据分割为包括多个像素的块，块中的像素被正交地转换和压缩，并且从编码数据解压缩原始图像数据。 该装置检测具有图像变化的块作为有效块。 对于包括多个有效块的宏块，按照有效块的出现频率或预定顺序来决定宏块的压缩顺序，并且每个宏块压缩图像数据。 作为编码数据，顺序地发送宏块的顺序信息和代码信息。 在这种情况下，监视代码量。 当代码量超过预定阈值时，停止压缩并执行下一图像的压缩。 编码数据被顺序发送到解压侧，并根据图像中大变化部分的宏块的顺序进行解压缩。 即使由于代码传输量的限制在图像处理期间压缩被停止，所以从人们更仔细地观察到的部分重建图像，使得不会发生离散运动或背景块噪声。
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公开(公告)号：US5689346A
公开(公告)日：1997-11-18
申请号：US343973
申请日：1994-11-18
申请人： Tsugio Noda , Masahiro Fukuda , Kimitaka Murashita
发明人： Tsugio Noda , Masahiro Fukuda , Kimitaka Murashita
CPC分类号： G06F17/16 , G06F17/147 , H04N19/126 , H04N19/124 , H04N19/13 , H04N19/30 , H04N19/60 , H04N19/91
摘要： An Adaptive Discrete Cosine Transformation is widely used for orthogonally transforming image data. The number of adders necessary for sum-of-product operations in a matrix multiplication is reduced. A high speed matrix multiplication and a progressive image build-up are realized by minimizing the number of operations by skipping those for insignificant data. This invention speeds up the operations for restoring image data, minimizes the necessary circuit size, and enables a progressive image build-up to be performed efficiently.
摘要翻译： 自适应离散余弦变换广泛用于正交变换图像数据。 减少矩阵乘法中产品总和运算所需的加法器数量。 通过跳过不重要数据的操作数来最小化操作次数，实现高速矩阵乘法和逐行图像建立。 本发明加快了恢复图像数据的操作，使必要的电路尺寸最小化，并且能够有效地执行渐进式图像积聚。
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9.发明授权Image data coding and restoring method and apparatus for coding and restoring the same 失效用于对其进行编码和恢复的图像数据编码和恢复方法和装置
公开(公告)号：US5861922A
公开(公告)日：1999-01-19
申请号：US631908
申请日：1996-04-12
申请人： Kimitaka Murashita , Tsugio Noda
发明人： Kimitaka Murashita , Tsugio Noda
IPC分类号： H03M7/30 , G06T9/00 , H04N9/804 , H04N19/105 , H04N19/107 , H04N19/134 , H04N19/136 , H04N19/137 , H04N19/146 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/423 , H04N19/426 , H04N19/50 , H04N19/503 , H04N19/51 , H04N19/61 , H04N19/625 , H04N19/65 , H04N19/85 , H04N19/91 , H04N7/24
CPC分类号： H04N9/8047 , H04N19/126 , H04N19/132 , H04N19/503 , H04N19/507 , H04N19/587 , H04N19/61 , H04N19/70 , H04N19/107 , H04N19/124 , H04N19/60 , H04N9/8042
摘要： When encoding the continuous image by dividing the respective frames into a plurality of blocks, the image in the block in the present frame is compared with a corresponding image in the block in the same position of the reference frame and the amount of the changes of the predetermined image element within respective blocks is calculated. Only when the amount of change exceeds the predetermined threshold value, the image data of respective blocks is coded. A plurality of threshold values can be adapted and appropriately changed by considering a spatially changing pattern of the amount of the change of the image from the reference frame or a refreshing operation.
摘要翻译： 当通过将各个帧划分为多个块来对连续图像进行编码时，将当前帧中的块中的图像与参考帧的相同位置中的块中的相应图像进行比较， 计算相应块内的预定图像元素。 仅当变化量超过预定阈值时，对各个块的图像数据进行编码。 可以通过考虑来自参考帧的图像变化量的空间变化模式或刷新操作来适应和适当地改变多个阈值。
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10.发明授权Image data coding and restoring method and apparatus for coding and restoring the same 失效用于对其进行编码和恢复的图像数据编码和恢复方法和装置公开(公告)号：US06304606B1
公开(公告)日：2001-10-16
申请号：US09179857
申请日：1998-10-28
申请人： Kimitaka Murashita , Tsugio Noda
发明人： Kimitaka Murashita , Tsugio Noda
IPC分类号： H04N730
CPC分类号： H04N9/8047 , H04N9/8042 , H04N19/107 , H04N19/124 , H04N19/126 , H04N19/132 , H04N19/503 , H04N19/507 , H04N19/587 , H04N19/60 , H04N19/61 , H04N19/70
摘要： When encoding the continuous image by dividing the respective frames into a plurality of blocks, the image in the block in the present frame is compared with a corresponding image in the block in the same position of the reference frame and the amount of the changes of the predetermined image element within respective blocks is calculated. Only when the amount of change exceeds the predetermined threshold value, the image data of respective blocks is coded. A plurality of threshold values can be adapted and appropriately changed by considering a spatially changing pattern of the amount of the change of the image from the reference frame or a refreshing operation.
摘要翻译： 当通过将各个帧划分为多个块来对连续图像进行编码时，将当前帧中的块中的图像与参考帧的相同位置中的块中的相应图像进行比较， 计算相应块内的预定图像元素。 仅当变化量超过预定阈值时，对各个块的图像数据进行编码。 可以通过考虑来自参考帧的图像变化量的空间变化模式或刷新操作来适应和适当地改变多个阈值。
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