PICTURE ENCODING APPARATUS AND METHOD, PROGRAM AND RECORDING MEDIUM
    92.
    发明申请
    PICTURE ENCODING APPARATUS AND METHOD, PROGRAM AND RECORDING MEDIUM 有权
    图像编码设备和方法,程序和记录介质

    公开(公告)号:US20090245668A1

    公开(公告)日:2009-10-01

    申请号:US12211330

    申请日:2008-09-16

    IPC分类号: G06K9/36

    CPC分类号: G06T9/005 G06T9/004

    摘要: An apparatus and a method for compressing a picture by wavelet transform and entropy coding, in which the processing load of arithmetic coding may be relieved and rate control may be carried out effectively, while still maintaining the picture quality. An encoding object prediction unit predicts bitplanes to be encoded and extracts only those bitplanes which are to be encoded. An EBCOT unit generates an encoding pass from one bitplane to be encoded to another to execute arithmetic coding. In controlling the code volume to a target code volume, a rate controller sums the arithmetic codes in a sequence from the arithmetic code with the highest bit position in the totality of the code blocks of an input picture to the arithmetic code of the lowermost bit, from one bitplane to another or from one encoding pass to another, and halts the summation when the predetermined target code volume is exceeded.

    摘要翻译: 通过小波变换和熵编码对图像进行压缩的装置和方法,其中可以有效地减少算术编码的处理负担并且可以有效地进行速率控制,同时仍然保持图像质量。 编码对象预测单元预测要编码的位平面并仅提取要被编码的位平面。 EBCOT单元从要编码的一个位平面产生编码通过,以执行算术编码。 在将代码量控制到目标代码量时,速率控制器将来自具有输入图像的代码块的总数中的最高位位置的算术代码的序列中的算术代码与最低位的算术代码相加, 从一个位平面到另一个编码,或者从一个编码遍到另一个,并且当超过预定的目标代码量时停止求和。

    Transmission format, communication control apparatus and method, recording medium, and program
    93.
    发明授权
    Transmission format, communication control apparatus and method, recording medium, and program 有权
    传输格式,通信控制装置和方法,记录介质和程序

    公开(公告)号:US07564782B2

    公开(公告)日:2009-07-21

    申请号:US10289056

    申请日:2002-11-06

    IPC分类号: H04L12/26 H04B1/66 G06F15/173

    摘要: JPEG-2000 data is formatted into RTP packets for transmission through the Internet. A priority field is provided in the format, and a value indicating the importance of a code stream included in a packet is stored therein. A type field indicates a payload type of a JPEG-2000 code stream. An mh_id field is provided as an identifier of a main header of the JPEG-2000 code stream and indicates a change in the main header. An mh_length field indicates the length of the main header and a fragment offset field stores the number of offset bytes from the start of an image of the packet.

    摘要翻译: JPEG-2000数据格式化为RTP数据包,以通过互联网传输。 以格式提供优先级字段,并且存储指示包括在分组中的码流的重要性的值。 类型字段指示JPEG-2000码流的有效载荷类型。 提供mh_id字段作为JPEG-2000码流的主标题的标识符,并指示主标题中的改变。 mh_length字段指示主标题的长度,并且片段偏移字段存储从包的图像开始起的偏移字节数。

    Picture encoding apparatus and method, program and recording medium
    95.
    发明授权
    Picture encoding apparatus and method, program and recording medium 有权
    图像编码装置和方法,程序和记录介质

    公开(公告)号:US07483575B2

    公开(公告)日:2009-01-27

    申请号:US10691650

    申请日:2003-10-24

    IPC分类号: G06K9/36

    CPC分类号: G06T9/005 G06T9/004

    摘要: An apparatus and a method for compressing a picture by wavelet transform and entropy coding, in which the processing load of arithmetic coding may be relieved and rate control may be carried out effectively, while still maintaining the picture quality. An encoding object prediction unit predicts bitplanes to be encoded and extracts only those bitplanes which are to be encoded. An EBCOT unit generates an encoding pass from one bitplane to be encoded to another to execute arithmetic coding. In controlling the code volume to a target code volume, a rate controller sums the arithmetic codes in a sequence from the arithmetic code with the highest bit position in the totality of the code blocks of an input picture to the arithmetic code of the lowermost bit, from one bitplane to another or from one encoding pass to another, and halts the summation when the predetermined target code volume is exceeded.

    摘要翻译: 通过小波变换和熵编码对图像进行压缩的装置和方法,其中可以有效地减少算术编码的处理负担并且可以有效地进行速率控制,同时仍然保持图像质量。 编码对象预测单元预测要编码的位平面并仅提取要被编码的位平面。 EBCOT单元从要编码的一个位平面产生编码通过,以执行算术编码。 在将代码量控制到目标代码量时,速率控制器将来自具有输入图像的代码块的总数中的最高位位置的算术代码的序列中的算术代码与最低位的算术代码相加, 从一个位平面到另一个编码,或者从一个编码遍到另一个,并且当超过预定的目标代码量时停止求和。

    Image encoding apparatus and method
    97.
    发明授权
    Image encoding apparatus and method 有权
    图像编码装置及方法

    公开(公告)号:US07298915B2

    公开(公告)日:2007-11-20

    申请号:US10835766

    申请日:2004-04-30

    IPC分类号: G06K9/36 G06K9/46

    摘要: In an image encoder (1), a quantizer (11) makes a quantization-step size set for each of low-frequency subbands whose resolution level belongs to a predetermined resolution level coincide with a quantization-step size set for each subband to encode an original image having the resolution level as it is. A low-pass rate controller (17) provides a rate control for the bit rate of arithmetic code D16 in all code blocks in a low-frequency subband to be less than a predetermined target bit rate. A high-pass rate controller (18) provides such a rate control that the bit rate of arithmetic code D17 in all code blocks in other subbands than the low-frequency subbands will be less than a target bit rate, that is, a bit rate resulted from subtraction of a bit rate D18 having actually occurred in the low-frequency subbands from a final target bit rate.

    摘要翻译: 在图像编码器(1)中,量化器(11)为分辨率等级属于预定分辨率级别的每个低频子带设置量化步长,与为每个子带设置的量化步长一致,以对 原始图像具有分辨率级别。 低通速率控制器(17)为低频子频带中的所有码块中的算术码D16的比特率提供比率预定的比特率。 高通率控制器(18)提供这样的速率控制,使得比低频子带的其他子带中的所有码块中的算术码D17的比特率将小于目标比特率,即比特率 从最终目标比特率减去实际发生在低频子带中的比特率D18产生的速率。

    Image coding device and coding method of same

    公开(公告)号:US07142722B2

    公开(公告)日:2006-11-28

    申请号:US10361691

    申请日:2003-02-11

    IPC分类号: G06K9/36

    CPC分类号: G06F17/148

    摘要: An image coding device for reducing flicker noise in moving image coding based on Motion JPEG-2000, which applies wavelet transform to an input image, quantizes the wavelet transform coefficients, and replaces quantization coefficients of adjacent frames in accordance with a predetermined judgment condition. The device spreads the finally output quantization coefficients into bit-planes from the MSB to LSB, generates coding passes in each bit-plane, performs arithmetic coding in the coding passes, controls the code quantity to a target code quantity from the generated arithmetic codes, and generates a packet of the image data by attaching a header to the arithmetic codes. The quantization coefficients are replaced based on a difference of absolute values of the quantization coefficients at the same sub-band in the adjacent frames. By further adding the wavelet transform coefficients, erroneous detection in the substitution processing can be decreased and the flicker noise can be suppressed effectively. Also, an image coding method for the same.

    Shopping assisting card, card issuing system, card issuing method, card issuing program, and storage medium
    99.
    发明申请
    Shopping assisting card, card issuing system, card issuing method, card issuing program, and storage medium 有权
    购物辅助卡,发卡系统,发卡方式,发卡程序和存储介质

    公开(公告)号:US20060151600A1

    公开(公告)日:2006-07-13

    申请号:US11330276

    申请日:2006-01-11

    IPC分类号: G06K15/00 G07G1/14 G06K5/00

    CPC分类号: G06Q30/06

    摘要: A card issuing system that issues a shopping assisting card that provides support in purchasing an item includes a database that stores customer information including a language used by a customer as registered information, item information including items sold at a store as registered information, store information including an item recommended by the store among the items included in the item information as registered information, and format data registered corresponding to a plurality of languages and used for producing the shopping assisting card, a data extracting unit that extracts format data corresponding to the language used by the customer and the item recommended by the store from the database, a data producing unit that produces printing data for the shopping assisting card introducing the item recommended by the store in the language used by the customer based on the format data, and a printer that prints the shopping assisting card based on the printing data.

    摘要翻译: 发行购买商品支援购物辅助卡的卡片发行系统包括存储客户信息的数据库,包括客户使用的语言作为注册信息,包括在商店销售的商品的商品信息作为登记信息,存储信息包括 在作为注册信息的项目信息中包括的项目中的商店推荐的项目以及与多种语言相对应地登记并用于制作购物辅助卡的格式数据,数据提取单元,提取与所使用的语言相对应的格式数据 由客户和商店从数据库推荐的商品,数据产生单元,其基于格式数据,以顾客所使用的语言为基础产生购物辅助卡的打印数据;以及打印机 基于打印数据打印购物辅助卡。

    Wavelet inverse transform method and apparatus and wavelet decoding method and apparatus
    100.
    发明申请
    Wavelet inverse transform method and apparatus and wavelet decoding method and apparatus 有权
    小波逆变换方法及装置及小波解码方法及装置

    公开(公告)号:US20060012495A1

    公开(公告)日:2006-01-19

    申请号:US11230110

    申请日:2005-09-19

    IPC分类号: H03M7/00

    摘要: A wavelet inverse transform method includes a decoding object coefficient extracting step of extracting only coefficients necessary for decoding a specified area from wavelet transform coefficients, and a wavelet inverse transform step of inverse transforming coefficients extracted from the decoding object coefficient extracting step. The decoding object coefficient extracting step extracts transform coefficients not only inside the specified area but also those outside the specified area. This enables only an optional partial picture to be decoded without decoding the entire picture. A corresponding wavelet inverse transform device is also disclosed.

    摘要翻译: 一种小波逆变换方法包括:解码对象系数提取步骤,从小波变换系数中提取仅对指定区域进行解码所必需的系数,以及从解码对象系数提取步骤提取的逆变换系数的小波逆变换步骤。 解码对象系数提取步骤不仅在指定区域内提取变换系数,而且提取指定区域之外的变换系数。 这使得只有可选的部分图像被解码而不解码整个图像。 还公开了相应的小波逆变换装置。