Image compression apparatus to perform compression of image data and dividing pixel value into an invalid and valid region to calculate valid bit width
    3.
    发明授权
    Image compression apparatus to perform compression of image data and dividing pixel value into an invalid and valid region to calculate valid bit width 有权
    图像压缩装置执行图像数据的压缩并将像素值划分为无效和有效区域以计算有效位宽度

    公开(公告)号:US09554015B2

    公开(公告)日:2017-01-24

    申请号:US14854733

    申请日:2015-09-15

    Inventor: Kenichi Kawauchi

    CPC classification number: H04N1/413 H04N1/00005 H04N1/41

    Abstract: Provided is an image compression apparatus including a dividing unit that divides a bit width pixel value set in advance that indicates compressed image information into an invalid bit region and a valid bit region other than the invalid bit region that are replaced with a fixed value determined in advance, an image information conversion unit that makes a value of the valid bit region be a value of a bit corresponding to the pixel value and makes a value of the invalid bit region be the fixed value determined in advance and converts the compressed image information to conversion image information, and a compression unit that compresses the conversion image information.

    Abstract translation: 提供了一种图像压缩装置,包括:分割单元,其将预先设置的指示压缩图像信息的比特宽度像素值分成无效比特区域和除了无效比特区域之外的有效比特区域, 使图像信息转换单元使有效位区域的值成为与像素值相对应的位的值,并使无效位区域的值成为预先确定的固定值,并将压缩图像信息转换为 转换图像信息,以及压缩转换图像信息的压缩单元。

    Apparatus and method for lossless compression of raw color sensor data from a color array filtered image sensor
    4.
    发明授权
    Apparatus and method for lossless compression of raw color sensor data from a color array filtered image sensor 有权
    从彩色阵列滤波图像传感器对原始颜色传感器数据进行无损压缩的装置和方法

    公开(公告)号:US09516197B2

    公开(公告)日:2016-12-06

    申请号:US14519998

    申请日:2014-10-21

    Applicant: Pixspan, Inc.

    Abstract: A method and apparatus to compress raw color-filter array (CFA) image data in a mathematically lossless manner using spatial processing techniques. The raw CFA data is transformed using a prediction algorithm and then partitioned into blocks having N rows and M columns. The blocks are clustered into groups using a clustering algorithm. Next, compression is performed on blocks within a cluster before the compressed blocks are further compressed using arithmetic coding. In some implementations, alphabet creation and correlation is performed on the CFA data before prediction transformation, and color-plane correlation is performed after prediction transformation but before partitioning into blocks. This spatial compression method can be performed efficiently on camera to compress data files, reducing the storage and data flow requirements of the camera.

    Abstract translation: 一种使用空间处理技术以数学无损方式压缩原始彩色滤光片阵列(CFA)图像数据的方法和装置。 使用预测算法对原始CFA数据进行变换,然后划分成具有N行和M列的块。 使用聚类算法将块聚类成组。 接下来,在使用算术编码进一步压缩压缩块之前,对群集内的块执行压缩。 在一些实现中,在预测变换之前对CFA数据执行字母表创建和相关,并且在预测变换之后但在分割成块之前执行彩色平面相关。 这种空间压缩方法可以在相机上有效地执行,以压缩数据文件,减少相机的存储和数据流量要求。

    IMAGE ENCODING SYSTEM AND METHOD THEREOF
    5.
    发明申请
    IMAGE ENCODING SYSTEM AND METHOD THEREOF 有权
    图像编码系统及其方法

    公开(公告)号:US20150156517A1

    公开(公告)日:2015-06-04

    申请号:US14096488

    申请日:2013-12-04

    Inventor: Chung-Yen LU

    Abstract: An image encoding system is disclosed. The image encoding system comprises a wavelet transform unit and a processing circuit. The wavelet transform unit performs a multiple-line-based wavelet transform on plural consecutive component lines to generate a wavelet transformed image comprising wavelet coefficients of plural sub-bands. The processing circuit coupled to the wavelet transform unit for quantizing, scanning and encoding the wavelet coefficients to generate a compressed image. Here, a number of the plural consecutive component lines is a multiple of 2 and less than 5. Since the wavelet transform unit performs the multiple-line-based wavelet transform to reduce the storage amount and maintain a good compression quality, an image encoding system of the invention can use SRAM buffers instead of a DRAM buffer.

    Abstract translation: 公开了一种图像编码系统。 图像编码系统包括小波变换单元和处理电路。 小波变换单元在多个连续分量线上执行基于多行的小波变换,以生成包括多个子带的小波系数的小波变换图像。 耦合到小波变换单元的处理电路用于量化,扫描和编码小波系数以产生压缩图像。 这里,多个连续分量线中的多个是2并小于5的倍数。由于小波变换单元执行基于多行的小波变换以减小存储量并保持良好的压缩质量,所以图像编码系统 本发明可以使用SRAM缓冲器而不是DRAM缓冲器。

    Lossless image compression with tree coding
    7.
    发明授权
    Lossless image compression with tree coding 有权
    无损图像压缩与树编码

    公开(公告)号:US06373988B1

    公开(公告)日:2002-04-16

    申请号:US09434493

    申请日:1999-11-05

    CPC classification number: H04N1/413 G06T9/40

    Abstract: In a method and a device for coding binary matrices, in particular sparse binary matrices, a matrix is gradually partitioned into sub-matrices During the gradual partitioning the number of binary ones are counted for each resulting sub-matrix. If a resulting sub-matrix does not consist of mixed symbols no further partitioning of that sub-matrix is required. The counted number of binary ones for each sub-matrix is then coded and transmitted. The method provides an efficient coding particularly for sparse binary matrices such as bi-level images or bit maps.

    Abstract translation: 在用于编码二进制矩阵,特别是稀疏二进制矩阵的方法和装置中,矩阵逐渐被划分为子矩阵。在逐渐分割期间,对于每个所得到的子矩阵对二进制数进行计数。 如果所得到的子矩阵不由混合符号组成,则不需要对该子矩阵进一步划分。 然后对每个子矩阵的二进制数进行编码和发送。 该方法特别针对稀疏二进制矩阵(例如双电平图像或位图)提供有效的编码。

    Method and appratus for decoding and printing coded image, and facsimile
apparatus, filing apparatus and communication apparatus using the same
    8.
    发明授权
    Method and appratus for decoding and printing coded image, and facsimile apparatus, filing apparatus and communication apparatus using the same 失效
    用于解码和打印编码图像的方法和设备,以及使用其的传真装置,归档装置和通信装置

    公开(公告)号:US5299027A

    公开(公告)日:1994-03-29

    申请号:US800032

    申请日:1991-11-29

    CPC classification number: H04N1/3333 H04N1/413 H04N2201/33357

    Abstract: An apparatus for decoding a coded image into a pixel image and printing the pixel image at an essentially constant speed without using decoding means which decodes the coded image faster than a printing speed and pixel memory means for storing at least one page of pixel information. Decoding amount calculation means for calculating the decoding amount of the code to be decoded is provided, and compare means monitors whether the decoding amount exceeds the printing amount of the pixels to be printed and the code is converted to other code depending on the comparison result. The decoding means needs only receive the converted code from the code memory means and decode it to the pixel information. Thus, the constant speed printing apparatus is attained without high speed decoding means and one-page memory.

    Abstract translation: 一种用于将编码图像解码为像素图像并以基本上恒定的速度打印像素图像的装置,而不使用比用于存储至少一页像素信息的打印速度和像素存储装置更快地解码编码图像的解码装置。 提供用于计算要解码的代码的解码量的解码量计算装置,并且比较装置根据比较结果监视解码量是否超过要打印的像素的打印量,并且代码被转换为其他代码。 解码装置仅需要从代码存储装置接收转换的代码并将其解码为像素信息。 因此,在没有高速解码装置和一页存储器的情况下获得恒速打印装置。

    Serial computer peripheral for facsimile image and ascii text
communication
    9.
    发明授权
    Serial computer peripheral for facsimile image and ascii text communication 失效
    用于传真图像和ASCII文本通信的串行计算机外围设备

    公开(公告)号:US5157519A

    公开(公告)日:1992-10-20

    申请号:US397835

    申请日:1989-08-24

    Abstract: A serial communication peripheral device operates both as a conventional modem and to transmit and receive facsimile images as scan encoded data. Text data containing ASCII characters can be received from a local device and converted into scan encoded data for transmission to facsimile machines or other computers. The text to facsimile conversion process uses an image builder to produce a partial image of a line of text. The partial image is stored in a buffer with each character at regularly spaced intervals. The desired intercharacter spacing and attributes such as bold and expanded characters are stored in an attribute array with each element of the array corresponding to one of the character images in the buffer. A Modified Huffman compressor scans the image buffer and produces the scan encoded data based upon the detected bits and the attributes stored in the attribute array.

    Abstract translation: 串行通信外围设备既作为常规调制解调器又作为扫描编码数据发送和接收传真图像。 可以从本地设备接收包含ASCII字符的文本数据,并将其转换为扫描编码数据,以传输到传真机或其他计算机。 文本到传真转换过程使用图像构建器来产生一行文本的部分图像。 部分图像以规则间隔的间隔存储在每个字符的缓冲器中。 期望的字符间距和诸如粗体和扩展字符的属性存储在属性数组中,其中阵列的每个元素对应于缓冲器中的一个字符图像。 修改的霍夫曼压缩器基于检测到的位和存储在属性数组中的属性来扫描图像缓冲器并产生扫描编码数据。

    Document processing apparatus with facsimile function
    10.
    发明授权
    Document processing apparatus with facsimile function 失效
    具有传真功能的文件处理装置

    公开(公告)号:US5153746A

    公开(公告)日:1992-10-06

    申请号:US622149

    申请日:1990-12-03

    Applicant: Hiroko Satoh

    Inventor: Hiroko Satoh

    CPC classification number: H04N1/413 H04N1/00204 H04N1/00206 H04N2201/0067

    Abstract: A document-processing apparatus with a facsimile function includes a document-processing unit, and an adaptor, detachably connected to the document-processing unit, for facsimile-transmitting the document processed by the document-processing unit. The document processing unit and the adaptor can operate in parallel with each other.

    Abstract translation: 具有传真功能的文件处理装置包括文件处理单元和可拆卸地连接到文件处理单元的用于传真由文件处理单元处理的文件的适配器。 文件处理单元和适配器可以彼此并行操作。

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