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公开(公告)号：US08559756B2
公开(公告)日：2013-10-15
申请号：US12186392
申请日：2008-08-05
CPC分类号： H04N5/225
摘要： Method and apparatus for radiance processing by demultiplexing in the frequency domain. A frequency domain demultiplexing module obtains a radiance image captured with a lens-based radiance camera. The image includes optically mixed spatial and angular frequency components of light from a scene. The module performs frequency domain demultiplexing on the radiance image to generate multiple parallax views of the scene. The method may extract multiple slices at different angular frequencies from a Fourier transform of the radiance image, apply a Fourier transform to each of the multiple slices to generate intermediate images, stack the intermediate images to form a 3- or 4-dimensional image, apply an inverse Fourier transform along angular dimension(s) of the 3- or 4-dimensional image, and unstack the transformed 3- or 4-dimensional image to obtain the multiple parallax views. During the method, phase correction may be performed to determine the centers of the intermediate images.
摘要翻译： 用于在频域中解复用的辐射处理的方法和装置。 频域解复用模块获得用基于透镜的辐射照相机拍摄的辐射图像。 该图像包括来自场景的光的光学混合空间和角频率分量。 该模块在辐射图像上执行频域解复用以产生场景的多个视差视图。 该方法可以从辐射图像的傅立叶变换中提取不同角频率处的多个片段，对每个多个片段应用傅立叶变换以生成中间图像，堆叠中间图像以形成3维或4维图像，应用 沿着3维或4维图像的角度尺寸进行逆傅立叶变换，并且解扩变换的3维或4维图像以获得多个视差视图。 在该方法期间，可以执行相位校正以确定中间图像的中心。
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2.发明授权公开(公告)号：US08401316B2
公开(公告)日：2013-03-19
申请号：US13429226
申请日：2012-03-23
CPC分类号： H04N5/772 , G02B27/0075 , H04N5/91 , H04N9/8042 , H04N19/176 , H04N19/597 , H04N19/60 , H04N19/90
摘要： A method and apparatus for the block-based compression of light-field images. Light-field images may be preprocessed by a preprocessing module into a format that is compatible with the blocking scheme of a block-based compression technique, for example JPEG. The compression technique is then used to compress the preprocessed light-field images. The light-field preprocessing module reshapes the angular data in a captured light-field image into shapes compatible with the blocking scheme of the compression technique so that blocking artifacts of block-based compression are not introduced in the final compressed image. Embodiments may produce compressed 2D images for which no specific light-field image viewer is needed to preview the full light-field image. Full light-field information is contained in one compressed 2D image.
摘要翻译： 一种用于光场图像的基于块的压缩的方法和装置。 光场图像可以由预处理模块预处理成与基于块的压缩技术（例如JPEG）的阻塞方案兼容的格式。 然后使用压缩技术来压缩预处理的光场图像。 光场预处理模块将捕获的光场图像中的角度数据重新形成为与压缩技术的阻塞方案兼容的形状，使得在最终压缩图像中不引入基于块的压缩的块伪影。 实施例可以产生压缩的2D图像，其中不需要特定的光场图像查看器来预览完整的光场图像。 完整的光场信息包含在一个压缩的2D图像中。
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3.发明申请公开(公告)号：US20120183232A1
公开(公告)日：2012-07-19
申请号：US13429226
申请日：2012-03-23
IPC分类号： G06K9/36
CPC分类号： H04N5/772 , G02B27/0075 , H04N5/91 , H04N9/8042 , H04N19/176 , H04N19/597 , H04N19/60 , H04N19/90
摘要： A method and apparatus for the block-based compression of light-field images. Light-field images may be preprocessed by a preprocessing module into a format that is compatible with the blocking scheme of a block-based compression technique, for example JPEG. The compression technique is then used to compress the preprocessed light-field images. The light-field preprocessing module reshapes the angular data in a captured light-field image into shapes compatible with the blocking scheme of the compression technique so that blocking artifacts of block-based compression are not introduced in the final compressed image. Embodiments may produce compressed 2D images for which no specific light-field image viewer is needed to preview the full light-field image. Full light-field information is contained in one compressed 2D image.
摘要翻译： 一种用于光场图像的基于块的压缩的方法和装置。 光场图像可以由预处理模块预处理成与基于块的压缩技术（例如JPEG）的阻塞方案兼容的格式。 然后使用压缩技术来压缩预处理的光场图像。 光场预处理模块将捕获的光场图像中的角度数据重新形成为与压缩技术的阻塞方案兼容的形状，使得在最终压缩图像中不引入基于块的压缩的块伪影。 实施例可以产生压缩的2D图像，其中不需要特定的光场图像查看器来预览完整的光场图像。 完整的光场信息包含在一个压缩的2D图像中。
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4.发明授权公开(公告)号：US08155456B2
公开(公告)日：2012-04-10
申请号：US12111735
申请日：2008-04-29
CPC分类号： H04N5/772 , G02B27/0075 , H04N5/91 , H04N9/8042 , H04N19/176 , H04N19/597 , H04N19/60 , H04N19/90
摘要： A method and apparatus for the block-based compression of light-field images. Light-field images may be preprocessed by a preprocessing module into a format that is compatible with the blocking scheme of a block-based compression technique, for example JPEG. The compression technique is then used to compress the preprocessed light-field images. The light-field preprocessing module reshapes the angular data in a captured light-field image into shapes compatible with the blocking scheme of the compression technique so that blocking artifacts of block-based compression are not introduced in the final compressed image. Embodiments may produce compressed 2D images for which no specific light-field image viewer is needed to preview the full light-field image. Full light-field information is contained in one compressed 2D image.
摘要翻译： 一种用于光场图像的基于块的压缩的方法和装置。 光场图像可以由预处理模块预处理成与基于块的压缩技术（例如JPEG）的阻塞方案兼容的格式。 然后使用压缩技术来压缩预处理的光场图像。 光场预处理模块将捕获的光场图像中的角度数据重新形成为与压缩技术的阻塞方案兼容的形状，使得在最终压缩图像中不引入基于块的压缩的块伪影。 实施例可以产生压缩的2D图像，其中不需要特定的光场图像查看器来预览完整的光场图像。 完整的光场信息包含在一个压缩的2D图像中。
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5.发明申请公开(公告)号：US20090268970A1
公开(公告)日：2009-10-29
申请号：US12111735
申请日：2008-04-29
IPC分类号： G06K9/36
CPC分类号： H04N5/772 , G02B27/0075 , H04N5/91 , H04N9/8042 , H04N19/176 , H04N19/597 , H04N19/60 , H04N19/90
摘要： A method and apparatus for the block-based compression of light-field images. Light-field images may be preprocessed by a preprocessing module into a format that is compatible with the blocking scheme of a block-based compression technique, for example JPEG. The compression technique is then used to compress the preprocessed light-field images. The light-field preprocessing module reshapes the angular data in a captured light-field image into shapes compatible with the blocking scheme of the compression technique so that blocking artifacts of block-based compression are not introduced in the final compressed image. Embodiments may produce compressed 2D images for which no specific light-field image viewer is needed to preview the full light-field image. Full light-field information is contained in one compressed 2D image.
摘要翻译： 一种用于光场图像的基于块的压缩的方法和装置。 光场图像可以由预处理模块预处理成与基于块的压缩技术（例如JPEG）的阻塞方案兼容的格式。 然后使用压缩技术来压缩预处理的光场图像。 光场预处理模块将捕获的光场图像中的角度数据重新形成为与压缩技术的阻塞方案兼容的形状，使得在最终压缩图像中不引入基于块的压缩的块伪影。 实施例可以产生压缩的2D图像，其中不需要特定的光场图像查看器来预览完整的光场图像。 完整的光场信息包含在一个压缩的2D图像中。
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