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    • 7. 发明授权
    • Wavelet transformation device and method, wavelet inverse transformation device and method, program, and recording medium
    • 小波变换装置及方法,小波逆变换装置及方法,程序及记录介质
    • US08031960B2
    • 2011-10-04
    • US11767743
    • 2007-06-25
    • Takahiro FukuharaKatsutoshi AndoNaoto NishimuraYuuki Tanaka
    • Takahiro FukuharaKatsutoshi AndoNaoto NishimuraYuuki Tanaka
    • G06K9/46
    • G06F17/148
    • Wavelet transformation is performed at a plurality of levels as to image signals. A first buffer stores, independently for each of the levels, a part of coefficients from results of analysis filtering in a horizontal direction of the image signals. A second buffer stores, independently for each of the levels, a part of coefficients generated in a computation process of analysis filtering in a vertical direction of the image signals. A vertical filtering unit performs the vertical direction analysis filtering, using coefficients read out from the first and second buffers. A horizontal filtering unit performs analysis filtering in the horizontal direction, using coefficients from the results of the vertical direction analysis filtering as the input of the horizontal direction analysis filtering for the next level, except for the final level of the levels.
    • 在图像信号的多个级别上进行小波变换。 第一缓冲器针对每个级别独立地存储在图像信号的水平方向上的分析滤波结果的一部分系数。 第二缓冲器为每个级别独立地存储在图像信号的垂直方向上的分析滤波的计算处理中生成的系数的一部分。 垂直滤波单元使用从第一和第二缓冲器读出的系数执行垂直方向分析滤波。 水平滤波单元使用来自垂直方向分析滤波结果的系数作为下一级的水平方向分析滤波的输入,除水位的最终水平之外,在水平方向上执行分析滤波。
    • 8. 发明申请
    • INFORMATION PROCESSING DEVICE AND METHOD
    • 信息处理装置和方法
    • US20080285869A1
    • 2008-11-20
    • US12111450
    • 2008-04-29
    • Takahiro FukuharaNaoto Nishimura
    • Takahiro FukuharaNaoto Nishimura
    • G06K9/36
    • H04N19/42H04N19/63H04N19/635
    • An information processing device includes: a synthesis filter processing unit to subject image data to analysis filtering for dividing the frequency components of the image data into highband components and lowband components hierarchically, and subject the frequency components of the image data divided into a plurality of frequency components to synthesis filtering for mutually synthesizing the frequency components of the frequency band of the same division level recursively; a frequency component holding unit to hold frequency components of a division level one order lower, generated by the synthesis filtering performed by the synthesis filter processing unit; and a control unit to cause the synthesis filter processing unit to recursively perform the synthesis filtering processing on each frequency component held in the frequency component holding unit, in an order whereby the image data is restored in order from the top of the image, a plurality of lines at a time.
    • 一种信息处理装置,包括:合成滤波处理单元,用于对图像数据进行分析滤波,以将图像数据的频率分量分成高频分量和低频带分量,并将分割成多个频率的图像数据的频率分量 用于合成滤波的分量,以递归地相互合成相同分频级的频带的频率分量; 频率分量保持单元,其通过由合成滤波处理单元进行的合成滤波而产生的分频度的频率分量为1级以下; 以及控制单元,其使得合成滤波处理单元按照从图像的顶部起依次恢复图像数据的顺序递归地对保存在频率分量保持单元中的每个频率分量执行合成滤波处理,多个 的一行。
    • 9. 发明授权
    • Image processing device and method
    • 图像处理装置及方法
    • US08411984B2
    • 2013-04-02
    • US12930930
    • 2011-01-20
    • Takahiro FukuharaNaoto NishimuraHiroshi Akinaga
    • Takahiro FukuharaNaoto NishimuraHiroshi Akinaga
    • G06K9/40
    • G06K9/36
    • An image processing device includes a supply unit that supplies a coefficient data group in each sub-band, in which image data of a predetermined number of lines is decomposed for each frequency band by a hierarchical analysis filter process and which includes coefficient data of one line or more in a sub-band of at least a lowest frequency component, a synthesis filter unit that synthesizes the coefficient data group and generates image data in a baseband, a supply control unit that controls the supply unit to supply the coefficient data at such a timing that the synthesis filter unit can generate the image data at a timing corresponding to a horizontal synchronization period, and a synthesis filtering control unit that controls the synthesis filter unit to synthesize the coefficient data group in the predetermined order and generate the image data at a timing corresponding to the horizontal synchronization period.
    • 一种图像处理装置,包括:提供单元,其通过分层分析滤波处理在每个子带中提供系数数据组,其中预定数量的行的图像数据被分解用于每个频带,并且包括一行的系数数据 或更多个在至少最低频率分量的子带中,合成滤波器单元,其合成所述系数数据组并在基带中产生图像数据;供应控制单元,其控制所述供应单元以在所述基带处提供所述系数数据; 合成滤波器单元可以在与水平同步周期相对应的定时产生图像数据的定时,以及合成滤波控制单元,其控制合成滤波器单元以预定顺序合成系数数据组,并以 定时对应于水平同步周期。
    • 10. 发明授权
    • Information processing device and method
    • 信息处理装置及方法
    • US08213731B2
    • 2012-07-03
    • US12111450
    • 2008-04-29
    • Takahiro FukuharaNaoto Nishimura
    • Takahiro FukuharaNaoto Nishimura
    • G06K9/36H04N7/12
    • H04N19/42H04N19/63H04N19/635
    • An information processing device includes: a synthesis filter processing unit to subject image data to analysis filtering for dividing the frequency components of the image data into highband components and lowband components hierarchically, and subject the frequency components of the image data divided into a plurality of frequency components to synthesis filtering for mutually synthesizing the frequency components of the frequency band of the same division level recursively; a frequency component holding unit to hold frequency components of a division level one order lower, generated by the synthesis filtering performed by the synthesis filter processing unit; and a control unit to cause the synthesis filter processing unit to recursively perform the synthesis filtering processing on each frequency component held in the frequency component holding unit, in an order whereby the image data is restored in order from the top of the image, a plurality of lines at a time.
    • 一种信息处理装置,包括:合成滤波处理单元,用于对图像数据进行分析滤波,以将图像数据的频率分量分成高频分量和低频带分量,并将分割成多个频率的图像数据的频率分量 用于合成滤波的分量,以递归地相互合成相同分频级的频带的频率分量; 频率分量保持单元,其通过由合成滤波处理单元进行的合成滤波而产生的分频度的频率分量为1级以下; 以及控制单元,其使得合成滤波处理单元按照从图像的顶部起依次恢复图像数据的顺序递归地对保存在频率分量保持单元中的每个频率分量执行合成滤波处理,多个 的一行。