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    • 3. 发明授权
    • Image compression apparatus and image compression method
    • 图像压缩装置和图像压缩方法
    • US08488893B2
    • 2013-07-16
    • US13292968
    • 2011-11-09
    • Naotsugu Itoh
    • Naotsugu Itoh
    • G06K9/36G06K9/46
    • H04N19/59H04N19/12
    • An image compression apparatus performs image compression on high-resolution image data of various resolutions while reducing the circuit size. A generation unit generates complementary information based on an arrangement pattern of pixel values in each of the divided blocks each including 2 by 2 pixels. Further, image data of 1/(2^M) times the resolution is compressed using a first compression method, and image data of 1/(2^N) times the resolution is compressed using a second compression method. The apparatus determines whether to cause a combination of the complementary information and first compressed data to be output, or a combination of the complementary information and second compressed data to be output, based on the data size of each.
    • 图像压缩装置在减小电路尺寸的同时对各种分辨率的高分辨率图像数据进行图像压缩。 生成单元基于每个包括2×2像素的分割块中的像素值的排列模式生成补充信息。 此外,使用第一压缩方法压缩分辨率的1 /(2 ^ M)倍的图像数据,并且使用第二压缩方法来压缩分辨率的1 /(2 ^ N)倍的图像数据。 该装置基于每个的数据大小来确定是否导出补充信息和第一压缩数据的组合以及要输出的补充信息和第二压缩数据的组合。
    • 4. 发明授权
    • Data conversion apparatus and control method thereof
    • 数据转换装置及其控制方法
    • US07907071B2
    • 2011-03-15
    • US12420925
    • 2009-04-09
    • Naotsugu Itoh
    • Naotsugu Itoh
    • H03M7/40
    • H03M7/46
    • This invention converts Packbit-encoded data into new Packbit-encoded data which allows to have a throughput=M. a extraction unit separates inputted encoded data into length information and data information, and outputs them to a conversion unit. The conversion unit has a count unit which cumulatively counts the number of output data after decoding indicated by the separated length information. The conversion unit divides length information of interest into first length information and second length information as needed, outputs the first length information, and sets the second length information as an initial count target to be counted by the count unit, so that the counted number N of output data reaches the throughput=M. The conversion unit combines the generated length information and the separated data information, and outputs new Packbit-encoded data.
    • 本发明将Packbit编码的数据转换成允许具有吞吐量= M的新的Packbit编码数据。 提取单元将输入的编码数据分离成长度信息和数据信息,并将其输出到转换单元。 转换单元具有对由分离长度信息表示的解码后的输出数据的数量进行累计计数的计数单元。 转换单元根据需要将感兴趣的长度信息划分为第一长度信息和第二长度信息,输出第一长度信息,并将第二长度信息设置为由计数单元计数的初始计数目标,使得计数数N 的输出数据达到吞吐量= M。 转换单元组合生成的长度信息和分离的数据信息,并输出新的Packbit编码数据。