-
公开(公告)号:US20130058587A1
公开(公告)日:2013-03-07
申请号:US13475483
申请日:2012-05-18
申请人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
发明人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
IPC分类号: G06K9/40
CPC分类号: G06T5/003
摘要: Various embodiments of methods and apparatus for motion deblurring in text images are disclosed. In one embodiment, a threshold-based text prediction for a blurred image is generated. A point spread function for the blurred image is estimated. A result of the threshold-based text prediction function is deconvolved based on the point spread function. The generating, estimating, and deconvolving are iterated at a plurality of scales, and a final deconvolution of a result of the iteratively deconvolving is executed.
摘要翻译: 公开了用于文本图像中的运动去模糊的方法和装置的各种实施例。 在一个实施例中,生成用于模糊图像的基于阈值的文本预测。 估计模糊图像的点扩散函数。 基于阈值的文本预测函数的结果基于点扩散函数被去卷积。 生成,估计和解卷积以多个尺度迭代,并且执行迭代去卷积的结果的最终去卷积。
-
公开(公告)号:US5055736A
公开(公告)日:1991-10-08
申请号:US502127
申请日:1990-03-30
申请人: Joyung Yun , Hojin Cho
发明人: Joyung Yun , Hojin Cho
IPC分类号: H01J29/07
CPC分类号: H01J29/076
摘要: A shadow mask for use in a three-gun color picture tube comprising a number of electron beam transmission holes, the length of the bridge portion between two vertically adjacent ones of said electron beam transmission holes being constant, the vertical pitch of said electron beam transmission holes being varied between Py+.DELTA.x and Py-.DELTA.x so as to reduce moire effect, .DELTA.x being obtained from the following formula when n=3, 4: ##EQU1## wherein Py is the vertical pitch of the electron beam transmission holes of a shadow mask, Ps the pitch of scanning lines, fa the pitch frequency of the shadow mask, and fs the scanning frequency.
摘要翻译: 一种用于三枪彩色显像管的荫罩,包括多个电子束透射孔,两个垂直相邻的电子束透射孔之间的桥接部分的长度恒定,所述电子束透射的垂直间距 在Py + DELTA x和Py-DELTA x之间改变空穴以减少莫尔效应,当n = 3,4时,由以下公式获得的DELTA x:其中Py是电子束透射孔的垂直间距 荫罩,扫描线的间距,荫罩的俯仰频率,fs扫描频率。
-
公开(公告)号:US09042672B2
公开(公告)日:2015-05-26
申请号:US13480119
申请日:2012-05-24
申请人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
发明人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
CPC分类号: G06T5/003
摘要: Various embodiments of methods and apparatus for motion deblurring are disclosed. In one embodiment, an estimate of a latent image of a blurred image at a current scale from an estimate of a latent image at a previous coarse scale is generated using an upsampling super-resolution function, and a blur kernel is estimated based on the estimate of the latent image and the blurred image; and are repeated from a course to fine scale. A final image estimate is generated. The generating the final image estimate includes performing a deconvolution of the latent image using the blur kernel and the blurred image.
摘要翻译: 公开了用于运动去模糊的方法和装置的各种实施例。 在一个实施例中,使用上采样超分辨率函数,从先前粗略尺度的潜像估计值来估计当前尺度下的模糊图像的潜像,并且基于估计来估计模糊核 的潜像和模糊图像; 并从课程重复到精细规模。 生成最终图像估计。 生成最终图像估计包括使用模糊核和模糊图像执行潜像的去卷积。
-
公开(公告)号:US20130058588A1
公开(公告)日:2013-03-07
申请号:US13480119
申请日:2012-05-24
申请人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
发明人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
IPC分类号: G06K9/40
CPC分类号: G06T5/003
摘要: Various embodiments of methods and apparatus for motion deblurring are disclosed. In one embodiment, an estimate of a latent image of a blurred image at a current scale from an estimate of a latent image at a previous coarse scale is generated using an upsampling super-resolution function, and a blur kernel is estimated based on the estimate of the latent image and the blurred image; and are repeated from a course to fine scale. A final image estimate is generated. The generating the final image estimate includes performing a deconvolution of the latent image using the blur kernel and the blurred image.
摘要翻译: 公开了用于运动去模糊的方法和装置的各种实施例。 在一个实施例中,使用上采样超分辨率函数,从先前粗略尺度的潜像估计值来估计当前尺度下的模糊图像的潜像,并且基于估计来估计模糊核 的潜像和模糊图像; 并从课程重复到精细规模。 生成最终图像估计。 生成最终图像估计包括使用模糊核和模糊图像执行潜像的去卷积。
-
公开(公告)号:US08705881B2
公开(公告)日:2014-04-22
申请号:US13475483
申请日:2012-05-18
申请人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
发明人: Jue Wang , Hojin Cho , Jen-Chan Chien , Sarah A. Kong , Seungyong Lee
CPC分类号: G06T5/003
摘要: Various embodiments of methods and apparatus for motion deblurring in text images are disclosed. In one embodiment, a threshold-based text prediction for a blurred image is generated. A point spread function for the blurred image is estimated. A result of the threshold-based text prediction function is deconvolved based on the point spread function. The generating, estimating, and deconvolving are iterated at a plurality of scales, and a final deconvolution of a result of the iteratively deconvolving is executed.
摘要翻译: 公开了用于文本图像中的运动去模糊的方法和装置的各种实施例。 在一个实施例中,生成用于模糊图像的基于阈值的文本预测。 估计模糊图像的点扩散函数。 基于阈值的文本预测函数的结果基于点扩散函数被去卷积。 生成,估计和解卷积以多个尺度迭代,并且执行迭代去卷积的结果的最终去卷积。
-
-
-
-