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    • 2. 发明申请
    • ENCODING DEVICE AND METHOD, COMPOSITE DEVICE AND METHOD, AND TRANSMISSION SYSTEM
    • 编码装置和方法,复合装置和方法以及传输系统
    • US20090102686A1
    • 2009-04-23
    • US11816432
    • 2006-11-17
    • Takahiro FukuharaKazuhisa HosakaKatsutoshi Ando
    • Takahiro FukuharaKazuhisa HosakaKatsutoshi Ando
    • H03M7/40
    • H04N19/436H04N19/129H04N19/13H04N19/61H04N19/63H04N19/647
    • The present invention relates to an encoding device and method, a decoding device and method, and a transmission system, wherein encoding and decoding can be performed at higher speeds. A maximum significant digit calculating unit 63 calculates the maximum significant digits of predetermined w quantized coefficients. A VLC encoding unit 64 outputs code indicating a maximum significant digit, based on the calculation results. A significant digit extracting unit 65 extracts the significant digits of each of w quantized coefficients based on the maximum significant digit. A VLC encoding unit 66 outputs code indicating the absolute values of the w quantized coefficients, based on the extracted significant digits. A sign extracting unit 67 extracts signs from the w quantized coefficients, indicating whether each quantized coefficient is positive or negative. A VLC encoding unit 68 outputs code indicating w signs.
    • 编码装置和方法,解码装置和方法以及传输系统技术领域本发明涉及可以更高速度进行编码和解码的编码装置和方法,解码装置和方法。 最大有效数字计算单元63计算预定的量化系数的最大有效数字。 VLC编码单元64基于计算结果输出指示最大有效数字的代码。 有效数字提取单元65基于最大有效数字提取每个w量化系数的有效数字。 VLC编码单元66基于提取的有效数字输出指示w量化系数的绝对值的代码。 符号提取单元67从w量化系数中提取符号,指示每个量化系数是正还是负。 VLC编码单元68输出指示w个符号的码。
    • 3. 发明授权
    • Encoding device and method, decoding device and method, and transmission system
    • 编码装置及方法,解码装置及方法及传输系统
    • US08320693B2
    • 2012-11-27
    • US11814257
    • 2006-11-17
    • Takahiro FukuharaKazuhisa HosakaKatsutoshi Ando
    • Takahiro FukuharaKazuhisa HosakaKatsutoshi Ando
    • G06K9/36G06K9/46
    • H04N19/436H04N19/129H04N19/13H04N19/61H04N19/63H04N19/647
    • An encoding device includes a filter unit that performs a filtering processing as to image data, for a line block including image data of a number of lines for generating coefficient data of one line of a sub-band of at least a lowest band component. The filter unit generates a plurality of sub-bands made up of coefficient data broken down by frequency band. The encoding device also includes a storage unit that stores coefficient data generated by the filter unit, for the line block. The encoding device further includes a coefficient rearranging unit that rearranges the coefficient data, for each line block, in an order in which a synthesizing processing, for generating image data by synthesizing the coefficient data of a plurality of sub-bands which have been divided into frequency bands, is to be executed. An encoding unit encodes the coefficient data rearranged by the coefficient rearranging unit.
    • 一种编码装置包括:对于包括用于生成至少最低频带分量的子带的一行的系数数据的行数的图像数据的行块,对图像数据执行滤波处理的滤波器单元。 滤波器单元产生由按频带分解的系数数据组成的多个子带。 该编码装置还包括一个存储单元,该存储单元存储用于线块的由滤波器单元生成的系数数据。 编码装置还包括:系数重排单元,按照每个线路块的系数数据重排排列顺序,其中合成处理用于通过合成分割成多个子带的系数数据来生成图像数据 要执行频带。 编码单元对由系数重排单元重新排列的系数数据进行编码。
    • 4. 发明申请
    • ENCODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, AND TRANSMISSION SYSTEM
    • 编码设备和方法,解码设备和方法以及传输系统
    • US20090274378A1
    • 2009-11-05
    • US11814257
    • 2006-11-17
    • Takahiro FukuharaKazuhisa HosakaKatsutoshi Ando
    • Takahiro FukuharaKazuhisa HosakaKatsutoshi Ando
    • G06K9/36
    • H04N19/436H04N19/129H04N19/13H04N19/61H04N19/63H04N19/647
    • The present invention relates to an encoding device and method, a decoding device and method, and a transmission system, wherein image data which is subjected to compression encoding and sent out can be output as decoded images at the receiving side in a short time. At the time of wavelet transformation, filtering processing is performed in increments of lines, with a number of lines, whereby coefficient data for one line worth of lowest band component is generated, as an increment. At the first time, processing of line No. 1 through line No. 7 is processed, highband component coefficient C1, coefficient C2, and coefficient C3, and lowband component coefficient Ca, coefficient Cb, and coefficient Cc, are generated at division level=1, and at division level=2, highband component coefficient C4 and lowband component coefficient C5 are further generated from coefficient Ca, coefficient Cb, and coefficient Cc. These coefficients are rearranged in the order from lowband to highband, and supplied to a synthesizing filter. The synthesizing filer performs filtering processing of the coefficients in the order in which they were supplied, generates image data, and outputs.
    • 编码装置和方法,解码装置和方法以及传输系统技术领域本发明涉及一种编码装置和方法,解码装置和方法以及传输系统,其中经受压缩编码和发送的图像数据可在短时间内作为接收侧的解码图像输出。 在小波变换时,以行数为增量进行滤波处理,其行数为多行,由此产生一行值最低频带分量的系数数据作为增量。 处理1号线到7号线的处理时,分频电平= 1处产生高频分量系数C1,系数C2,系数C3,低频分量系数Ca,系数Cb,系数Cc, 1,并且在分频级别2,从系数Ca,系数Cb和系数Cc进一步生成高频分量系数C4和低频分量系数C5。 这些系数按从低频到高频的顺序重新排列,并提供给合成滤波器。 合成滤波器按照它们被提供的顺序对系数进行滤波处理,产生图像数据和输出。
    • 5. 发明授权
    • Image processing apparatus and image processing method
    • 图像处理装置和图像处理方法
    • US08634665B2
    • 2014-01-21
    • US13496748
    • 2010-09-14
    • Takahiro FukuharaKazuhisa HosakaHiroshi Akinaga
    • Takahiro FukuharaKazuhisa HosakaHiroshi Akinaga
    • G06K9/46
    • H04N19/64H04N19/124H04N19/129H04N19/15H04N19/18H04N19/1883H04N19/635H04N19/65H04N19/91
    • This invention relates to an image processing apparatus and an image processing method for improving the processing capacity per unit time in encoding and decoding images.A coefficient line sorting portion 104 sorts coefficient lines into an order which is different from that of wavelet inverse transform process as well as from that of transmission and in which the coefficient lines are sorted for an encoding process of which the degree of difficulty of encoding can be estimated by a rate control portion 109 at the earliest possible time. An encoded line sorting portion 108 sorts encoded lines into an order which is different from that of wavelet inverse transform process and in which the encoded lines are transmitted with improved resistance to the instability of the available transmission rate. This invention can be applied to image processing apparatus, for example.
    • 本发明涉及图像处理装置和图像处理方法,用于提高图像编码和解码中每单位时间的处理能力。 系数行分类部分104将系数行排列成与小波逆变换处理不同的顺序,以及从传输的顺序排列系数行,并且对系数行进行排序以进行编码难度的编码处理 可以由速率控制部分109在最早的时间估计。 编码行排序部分108将编码行排列成与小波逆变换处理不同的顺序,并且其中编码的行被传输,其具有改进的对可用传输速率的不稳定性的抵抗。 本发明可以应用于例如图像处理装置。
    • 7. 发明申请
    • IMAGE PROCESSING DEVICE AND METHOD
    • 图像处理装置和方法
    • US20110069897A1
    • 2011-03-24
    • US12879711
    • 2010-09-10
    • Takahiro FukuharaKazuhisa HosakaTsuguna Inagaki
    • Takahiro FukuharaKazuhisa HosakaTsuguna Inagaki
    • G06K9/36
    • H04N19/36H04N19/115H04N19/146H04N19/61H04N19/63H04N19/64
    • An image processing device including: selecting section configured to select coded data corresponding to coefficient data of a subband necessary to generate a decoded image of a predetermined resolution from coded data generated by coding a line block including a coefficient data group of each subband, the line block being generated by decomposing image data of a predetermined number of lines into each frequency band by hierarchical analysis filter processing and including at least one line or more of coefficient data of a subband of a lowest-frequency component; decoding section configured to decode the coded data selected by the selecting means; and synthesis filter section configured to hierarchically perform synthesis filter processing, synthesize the coefficient data obtained by decoding the coded data by the decoding means, and generate the decoded image of the predetermined resolution.
    • 一种图像处理装置,包括:选择部分,被配置为从由包括每个子带的系数数据组的线阵列编码生成的编码数据中选择对应于生成预定分辨率的解码图像所需的子带的系数数据的编码数据, 通过分层分析滤波处理将预定数量的行的图像数据分解成每个频带,并且包括最低频率分量的子带的系数数据中的至少一行以上,生成块; 解码部分,被配置为对由所述选择装置选择的编码数据进行解码; 以及合成滤波器部分,被配置为分级地执行合成滤波处理,合成通过解码装置解码编码数据而获得的系数数据,并生成预定分辨率的解码图像。
    • 9. 发明授权
    • Image encoding apparatus and method, program and recording medium
    • 图像编码装置和方法,程序和记录介质
    • US07356191B2
    • 2008-04-08
    • US10724102
    • 2003-12-01
    • Kazuhisa HosakaTakahiro Fukuhara
    • Kazuhisa HosakaTakahiro Fukuhara
    • G06K9/36
    • H04N19/645H04N19/13H04N19/61H04N19/63H04N19/647
    • In an image encoder is provided, including a to-be-encoded object prediction unit which counts quantization coefficients which are newly made significant, for example, when each bit plane is encoded, on the basis of quantization coefficient for each bit plane in all code blocks to provide a feature amount, estimates the number of generated codes on the basis of the feature amount, and adds the estimated number of codes in a predetermined order. When an initial target number of codes is reached, the to-be-encoded object prediction unit stops the addition, and supplies the entropy encoder with information on the bit planes having the quantization coefficients thereof been added as to-be-encoded object information. In this entropy encoder, only the quantization coefficient in the bit planes represented by the to-be-encoded object information, is processed by three types of encoding passes while truncating the quantization coefficients of the other bit planes.
    • 在提供了图像编码器的情况下,包括对每个比特平面进行编码时,例如对每个比特平面进行编码的新算出的量化系数进行计数的待编码对象预测部, 提供特征量的块,基于特征量估计生成代码的数量,并且以预定顺序添加估计的代码数。 当达到初始目标码数时,待编码对象预测单元停止相加,并且向该熵编码器提供关于其加法量化系数的比特平面的信息作为被编码对象信息。 在该熵编码器中,只有通过三种类型的编码遍进处理由待编码对象信息表示的位平面中的量化系数,同时截断其它位平面的量化系数。