公开(公告)号：US09479192B2

公开(公告)日：2016-10-25

申请号：US14749626

申请日：2015-06-24

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Bahram Jalali ,  Mohammad H. Asghari

IPC: H03M7/30 ,  H03M5/22

CPC classification number: H03M5/22 ,  H03M7/3059

Abstract: A method and apparatus for compression of digital and analog data utilizing an anamorphic spectrum transformation to warp an analog or digital signal to provide time-bandwidth compression after sampling is performed on the warped signal. The anamorphic spectrum transformation performs reallocating samples to assign more samples to fine features with high frequency waveform portions and fewer samples to coarse features with low frequency portions of the analog temporal signal, resulting in shorter record length and fewer number of samples.

Abstract translation: 使用变形频谱变换压缩数字和模拟数据以扭曲模拟或数字信号以在采样之后对翘曲信号执行采样之后的时间带宽压缩的方法和装置。 变形频谱变换执行重新分配样本，以将具有高频波形部分的精细特征和较少采样的样本分配给具有模拟时间信号的低频部分的粗略特征，导致更短的记录长度和更少的样本数量。

公开(公告)号：US20160006453A1

公开(公告)日：2016-01-07

申请号：US14749626

申请日：2015-06-24

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Bahram Jalali ,  Mohammad H. Asghari

IPC: H03M5/22 ,  H03M7/30

CPC classification number: H03M5/22 ,  H03M7/3059

Abstract: A method and apparatus for compression of digital and analog data utilizing an anamorphic spectrum transformation to warp an analog or digital signal to provide time-bandwidth compression after sampling is performed on the warped signal. The anamorphic spectrum transformation performs reallocating samples to assign more samples to fine features with high frequency waveform portions and fewer samples to coarse features with low frequency portions of the analog temporal signal, resulting in shorter record length and fewer number of samples.

Abstract translation: 使用变形频谱变换压缩数字和模拟数据以扭曲模拟或数字信号以在采样之后对翘曲信号执行采样之后的时间带宽压缩的方法和装置。 变形频谱变换执行重新分配样本，以将具有高频波形部分的精细特征和较少采样的样本分配给具有模拟时间信号的低频部分的粗略特征，导致更短的记录长度和更少的样本数量。

公开(公告)号：US20150373369A1

公开(公告)日：2015-12-24

申请号：US14749628

申请日：2015-06-24

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Bahram Jalali ,  Mohammad H. Asghari

IPC: H04N19/59 ,  H04N19/136 ,  H04N19/80 ,  H04N19/132

CPC classification number: H04N19/59 ,  H04N19/132 ,  H04N19/136 ,  H04N19/80

Abstract: A feature-selective compression method and system are described which uses a transformation causing feature-selective stretching of the image being compressed. As a result, additional samples are allocated to sharp features where they are needed, and less to coarse features where they are redundant. The method can be applied to still and video images, whether they are monochrome or color images or 3D images, and operates in open-loop fashion and does not require prior knowledge of the image. The method can be applied by itself or combined with other types of compression (i.e., JPEG, WebP) to further compress the image.

Abstract translation: 描述了使用引起要压缩的图像的特征选择性拉伸的变换的特征选择压缩方法和系统。 因此，额外的样本被分配到需要它们的尖锐特征，而较少的粗略特征则是冗余的。 该方法可以应用于静态和视频图像，无论它们是单色还是彩色图像或3D图像，并以开环方式操作，并且不需要图像的先前知识。 该方法可以自身应用或与其他类型的压缩（即，JPEG，WebP）组合来进一步压缩图像。