公开(公告)号：US20100080455A1

公开(公告)日：2010-04-01

申请号：US12589217

申请日：2009-10-20

Applicant: Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper

Inventor： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper

IPC: G06K9/00 ,  G06K9/40

CPC classification number: H04N5/262 ,  G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/176 ,  H04N19/46 ,  H04N19/467 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86

Abstract: Briefly, in accordance with a preferred embodiment of the present principles, simulation of a block of film grain for addition to a block of an image occurs by first establishing at least one image parameter in accordance with at least one attribute of the block. Thereafter, a block of film grain is established in accordance with the image parameter. Deblocking filtering can be applied to the film grain block.

Abstract translation: 简而言之，根据本原理的优选实施例，通过首先根据块的至少一个属性建立至少一个图像参数来发生用于添加到图像块的胶片颗粒块的模拟。 此后，根据图像参数建立胶片颗粒块。 去块滤波可以应用于胶片颗粒块。

公开(公告)号：US20100026887A1

公开(公告)日：2010-02-04

申请号：US12460814

申请日：2009-07-24

Applicant: Joel Sole ,  Joan Llach

Inventor： Joel Sole ,  Joan Llach

IPC: H04N7/01

CPC classification number: G06T3/4007

Abstract: A method and apparatus are provided for reversible, polynomial based image scaling. The apparatus includes a video scaler for performing image scaling from a first base resolution image to a higher resolution image, and from the higher resolution image to a second base resolution image. The first and the second base resolution images are equal on a pixel-by-pixel basis for an entirety of the first and the second base resolution images. A scaling function used for the image scaling is based on a polynomial function having two or more degrees.

Abstract translation: 提供了一种用于可逆的，基于多项式的图像缩放的方法和装置。 该装置包括用于执行从第一基本分辨率图像到较高分辨率图像以及从较高分辨率图像到第二基本分辨率图像的图像缩放的视频缩放器。 对于第一和第二基本分辨率图像的整体，第一和第二基本分辨率图像在逐个像素的基础上是相等的。 用于图像缩放的缩放函数基于具有两度或更多度的多项式函数。

公开(公告)号：US20070297515A1

公开(公告)日：2007-12-27

申请号：US11667581

申请日：2005-10-26

Applicant: Cristina Gomila ,  Joan Llach

Inventor： Cristina Gomila ,  Joan Llach

IPC: H04N11/02

CPC classification number: G06T5/002 ,  G06T5/10 ,  G06T2207/10016 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/80 ,  H04N19/85

Abstract: Film grain simulation within a receiver 4 occurs by first obtaining at least one block of pre-computed transformed coefficients. The block of pre-computed transformed coefficients undergoes filtering responsive to a frequency range that characterizes a desired pattern of the film grain. In practice, the frequency range lies within a set of cut frequencies fHL, fVL, fHH and fVH of a filter in two dimensions that characterizes a desired film grain pattern. Thereafter, the filtered set of coefficients undergoes an inverse transform to yield the film grain pattern.

Abstract translation: 通过首先获得至少一个预先计算的变换系数块，发生接收机4内的胶片颗粒模拟。 预先计算的变换系数的块根据表征胶片颗粒的期望图案的频率范围进行滤波。 在实践中，频率范围在一组切割频率f LF，f V L，f H HH和f V H， SUB>滤光器，其特征在于所需的胶片颗粒图案。 此后，经滤波的系数组经过逆变换以产生胶片颗粒图案。

公开(公告)号：US20070058878A1

公开(公告)日：2007-03-15

申请号：US10572820

申请日：2004-09-10

Applicant: Cristina Gomilla ,  Joan Llach ,  Jill Boyce

Inventor： Cristina Gomilla ,  Joan Llach ,  Jill Boyce

IPC: G06K9/40

CPC classification number: G06T5/002 ,  G06T5/10 ,  G06T2207/20021 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/85 ,  H04N19/86

Abstract: Film grain is simulated in an output image using pre-established blocks of film grain from a pool of pre-established blocks. Successive film grain blocks are selected by matching the average intensity of a block from the pool to the average intensity of a successive one of a set of M×N pixels in an incoming image. Once all of the successive pixel blocks from the image are matched to selected film grain blocks, the selected film grain blocks are “mosaiced”, that is composited into a larger image mapped to the incoming image.

Abstract translation: 在输出图像中使用来自预先建立的块的预先建立的胶片颗粒块来模拟胶片颗粒。 通过将来自池的块的平均强度与输入图像中的一组M×N像素中的连续的一个的平均强度相匹配来选择连续的胶片颗粒块。 一旦来自图像的所有连续的像素块与所选的胶片颗粒块相匹配，则所选择的胶片颗粒块被“镶嵌”，其被合成到映射到输入图像的较大图像中。

公开(公告)号：US20070036452A1

公开(公告)日：2007-02-15

申请号：US10571148

申请日：2004-09-22

Applicant: Joan Llach ,  Jill Boyce ,  Alexandros Tourapis

Inventor： Joan Llach ,  Jill Boyce ,  Alexandros Tourapis

IPC: G06K9/40

CPC classification number: H04N5/262 ,  G06T5/002 ,  G06T5/10 ,  G06T11/001 ,  G06T2207/20021 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/86

Abstract: Simulation of film grain in an image can occur by compressing a video image, then transmitting compressed video together with a message containing at least one parameter indicative of the original film grain, to a decoder, and restoring the original grainy appearance of images by having the decoder simulating film grain based on the content of the film grain message. To improve efficiency, one or more parameters of film grain information undergo scaling in accordance with a target pixel block size for pixel blocks in the image. Such scaling allows for the use of conventional circuitry for performing block-based operations in connection with the film grain simulation.

Abstract translation: 图像中的胶片颗粒的模拟可以通过压缩视频图像，然后将压缩视频与包含至少一个表示原始胶片颗粒的参数的消息一起发送到解码器，并且通过使图像恢复原始的颗粒状外观， 基于胶片信息内容的解码器模拟胶片颗粒。 为了提高效率，胶片颗粒信息的一个或多个参数根据图像中的像素块的目标像素块尺寸进行缩放。 这种缩放允许使用常规电路来执行与胶片颗粒模拟相关的基于块的操作。

公开(公告)号：US20060133686A1

公开(公告)日：2006-06-22

申请号：US11285540

申请日：2005-11-22

Applicant: Cristina Gomila ,  Joan Llach ,  Jeffrey Cooper

Inventor： Cristina Gomila ,  Joan Llach ,  Jeffrey Cooper

IPC: G06K9/40 ,  G06K9/36

CPC classification number: H04N5/262 ,  G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86

Abstract: Simulation of a block of film grain for addition to a block of an image occurs by first establishing at least one parameter at least in part in accordance with an attribute of the image block At least one at least one block of film grain is simulated from at least one film grain pattern generated in accordance with the at least one parameter. In particular, the film grain pattern is generated using a bit accurate technique.

Abstract translation: 通过首先至少部分地根据图像块的属性建立至少一个参数，来模拟一块胶片颗粒以添加到图像块中。至少一个至少一个胶片颗粒块从 根据至少一个参数产生的至少一个胶片颗粒图案。 特别地，使用比特精确技术产生胶片颗粒图案。

公开(公告)号：US11380270B2

公开(公告)日：2022-07-05

申请号：US13148819

申请日：2010-02-09

Applicant: Jiefu Zhai ,  Joan Llach

Inventor： Jiefu Zhai ,  Joan Llach

IPC: G09G3/34

Abstract: A method of operating a high dynamic range display device comprises the steps of: accessing an image signal; generating an intermediate backlighting driver signal for individual backlight elements for a backlighting unit responsive to the image signal; convoluting the intermediate backlighting driver signals with a point spread function of the backlighting unit; deriving at least one new backlighting driver signal responsive to the convoluting step; determining display error associated with a plurality of available light shutter signals of a front-end unit having individual light shutters and associated with the at least one new backlighting driver signal, the front-end unit having a higher resolution than the backlighting unit; driving the display device with a combination of shutter signals and new backlighting driver signals that causes a reduction in the display error with respect to other generated intermediate backlighting driver signals and other available light shutter signals.

公开(公告)号：US10070148B2

公开(公告)日：2018-09-04

申请号：US12932062

申请日：2011-02-16

Applicant: Hua Yang ,  Richard Edwin Goedeken ,  Joan Llach

Inventor： Hua Yang ,  Richard Edwin Goedeken ,  Joan Llach

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/60

Abstract: A method and apparatus are disclosed and described for providing bit rate configuration for multi-view video coding. In the video encoder, the method includes encoding image data for at least one picture for at least two joint views of multi-view video content, the at least two joint views including a base view and at least one dependent view. The bit rate configuration for encoding the image data is determined to include an average bit rate and a maximum bit rate for the base view and the average bit rate and the maximum bit rate for the at least two joint views (235, 215, 220).

公开(公告)号：US09992456B2

公开(公告)日：2018-06-05

申请号：US12932055

申请日：2011-02-16

Applicant: Jiancong Luo ,  Richard Edwin Goedeken ,  Joan Llach

Inventor： Jiancong Luo ,  Richard Edwin Goedeken ,  Joan Llach

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/00

CPC classification number: H04N19/00

Abstract: A method and apparatus are disclosed and described for providing hypothetical reference decoder conformance error detection. The apparatus includes a multi-pass encoder (200) for encoding pictures in a video sequence. The pictures are encoded in a first pass to determine a bit consumption of each picture, and a bit allocation is controlled during the encoding of the pictures in at least a second pass responsive to satisfying requirements for a subsequent decoding of the bitstream. The requirements relate to preventing at least one of underflow and overflow conditions in a buffer during the subsequent decoding. The bit allocation is based on the bit consumption determined in the first pass and buffer parameters. The pictures are encoded in at least the first and second passes into a plurality of bitstreams on a scene-basis such that any of the pictures belonging to a same scene are respectively encoded in a same one of the bitstreams.

公开(公告)号：US09813707B2

公开(公告)日：2017-11-07

申请号：US13522024

申请日：2011-01-21

Applicant: Dong-Qing Zhang ,  Sitaram Bhagavathy ,  Joan Llach

Inventor： Dong-Qing Zhang ,  Sitaram Bhagavathy ,  Joan Llach

IPC: H04N7/12 ,  H04N19/105 ,  H04N7/54 ,  H04N19/146 ,  H04N19/152 ,  H04N19/149 ,  H04N19/154 ,  H04N7/01 ,  H04N19/139 ,  H04N19/46 ,  H04N19/14 ,  H04N19/94 ,  H04N19/59

CPC classification number: H04N19/105 ,  H04N7/0125 ,  H04N7/54 ,  H04N19/139 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/152 ,  H04N19/154 ,  H04N19/46 ,  H04N19/59 ,  H04N19/94

Abstract: Methods and apparatuses for data pruning for video compression using example-based super resolution are provided. A method and apparatus for encoding is provided in which patches of video are extracted from input video, grouped together using a clustering method, and representative patches are packed into patch frames. The original video is downsized and sent either along with, or in addition to, the patch frames. At a decoder, the method and apparatus provided extract patches from the patch frames and create a patch library. The regular video frames are upsized and the low resolution patches are replaced by patches from the patch library by searching the library using the patches in the decoded regular frames as keywords. If there are no appropriate patches, no replacement is made. A post processing procedure is used to enhance the spatiotemporal smoothness of the recovered video.