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    • 1. 发明申请
    • APPARATUS AND METHOD FOR ROTATING IMAGE WITHOUT USING MEMORY
    • 没有使用存储器旋转图像的装置和方法
    • US20100322528A1
    • 2010-12-23
    • US12817574
    • 2010-06-17
    • Young-Ho SEOJong-Phil KIMJae-Oh SHIM
    • Young-Ho SEOJong-Phil KIMJae-Oh SHIM
    • G06K9/36
    • G06T3/60
    • An image rotation method without using a memory includes the steps of: reading, by a JPEG encoder, an input image having m×n macroblocks (wherein “m” and “n” are natural numbers); rotating image data of the respective macroblocks by a predetermined angle in a predetermined direction when encoding in the JPEG encoder; assigning and inputting a sequence of each rotated image data when encoding in the JPEG encoder; instructing the macroblocks to be output in a sequence changed from an initial input sequence of the macroblocks through use of a program when decoding in a JPEG decoder; and outputting an image rotated by the predetermined angle in the predetermined direction.
    • 不使用存储器的图像旋转方法包括以下步骤:通过JPEG编码器读取具有m×n个宏块的输入图像(其中“m”和“n”是自然数); 当在JPEG编码器中进行编码时,各个宏块的旋转图像数据以预定方向在预定方向上旋转; 在JPEG编码器中编码时分配和输入每个旋转的图像数据的序列; 通过在JPEG解码器中解码时通过使用程序,以宏块的初始输入序列改变的序列来指示宏块的输出; 并输出沿预定方向旋转预定角度的图像。
    • 2. 发明授权
    • JPEG decoder capable of scaling and scaling method using the same
    • 能够缩放和缩放方法的JPEG解码器使用它
    • US08805108B2
    • 2014-08-12
    • US12938903
    • 2010-11-03
    • Jae Oh ShimJogn Phil Kim
    • Jae Oh ShimJogn Phil Kim
    • G06K9/46G06K9/00G06K9/36H04N7/26H04N7/46
    • H04N19/00303H04N19/132H04N19/182H04N19/44H04N19/59
    • A JPEG decoder having a scaling function includes an inverse discrete cosine transform block, wherein the JPEG decoder selectively performs an inverse discrete cosine transform on a part of pixel data of a macroblock through the inverse discrete cosine transform block and outputs a scaled image file. The JPEG decoder and the scaling method using the JPEG decoder increase a decoding speed, thereby enabling an image to be output in real time, especially when the JPEG decoder and/or the scaling method are applied to a mobile field. Also, the JPEG decoder and the scaling method using the JPEG decoder can achieve an efficient scaling, even without a separate circuit for scaling, thereby reducing a circuit size and the number of components.
    • 具有缩放功能的JPEG解码器包括逆离散余弦变换块,其中JPEG解码器通过反离散余弦变换块选择性地对宏块的像素数据的一部分执行逆离散余弦变换,并输出缩放图像文件。 JPEG解码器和使用JPEG解码器的缩放方法增加了解码速度,从而使得能够实时地输出图像,特别是当JPEG解码器和/或缩放方法应用于移动领域时。 此外,JPEG解码器和使用JPEG解码器的缩放方法即使没有用于缩放的单独电路也可以实现有效的缩放,从而减小电路大小和组件数量。
    • 3. 发明申请
    • JPEG DECODER CAPABLE OF SCALING AND SCALING METHOD USING THE SAME
    • 具有缩放和缩放方法的JPEG解码器
    • US20110103704A1
    • 2011-05-05
    • US12938903
    • 2010-11-03
    • Jae Oh ShimJogn Phil Kim
    • Jae Oh ShimJogn Phil Kim
    • G06K9/36
    • H04N19/00303H04N19/132H04N19/182H04N19/44H04N19/59
    • A JPEG decoder having a scaling function includes an inverse discrete cosine transform block, wherein the JPEG decoder selectively performs an inverse discrete cosine transform on a part of pixel data of a macroblock through the inverse discrete cosine transform block and outputs a scaled image file. The JPEG decoder and the scaling method using the JPEG decoder increase a decoding speed, thereby enabling an image to be output in real time, especially when the JPEG decoder and/or the scaling method are applied to a mobile field. Also, the JPEG decoder and the scaling method using the JPEG decoder can achieve an efficient scaling, even without a separate circuit for scaling, thereby reducing a circuit size and the number of components.
    • 具有缩放功能的JPEG解码器包括逆离散余弦变换块,其中JPEG解码器通过反离散余弦变换块选择性地对宏块的像素数据的一部分执行逆离散余弦变换,并输出缩放图像文件。 JPEG解码器和使用JPEG解码器的缩放方法增加了解码速度,从而使得能够实时地输出图像,特别是当JPEG解码器和/或缩放方法应用于移动领域时。 此外,JPEG解码器和使用JPEG解码器的缩放方法即使没有用于缩放的单独电路也可以实现有效的缩放,从而减小电路大小和组件数量。