IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
    37.
    发明公开
    IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD 有权
    BILDVERARBEITUNGSVORRICHTUNG UND BILDVERARBEITUNGSVERFAHREN

    公开(公告)号:EP2955921A1

    公开(公告)日:2015-12-16

    申请号:EP15175322.5

    申请日:2011-10-14

    Inventor: SATO, Kazushi

    Abstract: Provided is an image processing device including a selection section configured to select, from a plurality of transform units with different sizes, a transform unit used for inverse orthogonal transformation of image data to be decoded, a generation section configured to generate, from a first quantization matrix corresponding to a transform unit for a first size, a second quantization matrix corresponding to a transform unit for a second size from a first quantization matrix corresponding to a transform unit for a first size, and an inverse quantization section configured to inversely quantize transform coefficient data for the image data using the second quantization matrix generated by the generation section when the selection section selects the transform unit for the second size.

    Abstract translation: 提供了一种图像处理装置,包括:选择部,被配置为从具有不同尺寸的多个变换单元中选择用于要解码的图像数据的逆正交变换的变换单元,生成部,被配置为从第一量化 矩阵对应于第一大小的变换单元,第二量化矩阵对应于来自与第一大小的变换单元相对应的第一量化矩阵的第二大小的变换单元,以及逆量化单元,被配置为逆变换系数 当选择部分选择第二大小的变换单元时,使用由生成部分生成的第二量化矩阵的图像数据的数据。

    LOSSLESS IMAGE COMPRESSION USING DIFFERENTIAL TRANSFER
    38.
    发明公开
    LOSSLESS IMAGE COMPRESSION USING DIFFERENTIAL TRANSFER 审中-公开
    VERLUSTFREIE BILDKOMPRESSION MIT DIFFERENELLERÜBERTRAGUNG

    公开(公告)号:EP2932719A1

    公开(公告)日:2015-10-21

    申请号:EP13814745.9

    申请日:2013-12-11

    Applicant: Apple Inc.

    Abstract: Lossless image compression using differential transfers may involve an image compression unit receiving image data for an image in a sequence of images and transmitting the image data such that image data for at least some image tiles is transmitted using lossy compression due to resource limitations. The image compression unit may then receive image data for a subsequent image in the sequence and determine that the image data for at least some tiles does not change relative to the image data for corresponding tiles of the previous image. The image compression unit may then transmit image data in a manner sufficient to create lossless versions of tiles for which lossily compressed image data was sent previously.

    Abstract translation: 使用差分传送的无损图像压缩可以涉及图像压缩单元,其接收图像序列中的图像的图像数据,并发送图像数据,使得由于资源限制,使用有损压缩来传送至少一些图像块的图像数据。 然后,图像压缩单元可以接收序列中后续图像的图像数据,并且确定用于至少一些瓦片的图像数据相对于先前图像的相应瓦片的图像数据不会改变。 然后,图像压缩单元可以以足够的方式发送图像数据,以便创建先前发送有损耗压缩图像数据的瓦片的无损版本。

Patent Agency Ranking