公开(公告)号：US20140286584A1

公开(公告)日：2014-09-25

申请号：US14222803

申请日：2014-03-24

Applicant: STMicroelectronics S.r.I.

Inventor： Daniele ALFONSO

IPC: H04N19/60 ,  H04N19/44

CPC classification number: H04N19/60 ,  H04N19/126 ,  H04N19/13 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/1883 ,  H04N19/423 ,  H04N19/44 ,  H04N19/63

Abstract: An embodiment for encoding digital images includes: partitioning the images into image blocks, subjecting the image blocks to transform into the frequency domain, and, possibly after thresholding resulting in lossy encoding, subjecting the image blocks transformed into the frequency domain to variable length coding to produce compressed encoded image blocks. Transform into the frequency domain may be, e.g., via wavelet transform, such as Haar wavelet transform, and variable length coding may be via Exponential-Golomb codes. An embodiment may also be adapted for transferring picture data over a bus in a system such as, e.g., a System-on-Chip (SoC) by generating compressed encoded image blocks for transfer over the bus and decoding compressed encoded image blocks transferred over the bus.

Abstract translation: 用于编码数字图像的实施例包括：将图像分割成图像块，使图像块变换到频域，并且可能在阈值化之后导致有损编码，将经变换到频域中的图像块进行可变长度编码 产生压缩编码图像块。 变换到频域可以是例如通过小波变换（例如Haar小波变换），并且可变长度编码可以经由指数 - 哥伦布码。 一个实施例还可以适用于通过生成用于在总线上传送的压缩编码图像块并解码通过总线传送的压缩编码图像块来在诸如片上系统（SoC）的系统中的总线上传送图像数据 总线。