公开(公告)号：US08447127B2

公开(公告)日：2013-05-21

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: G06K9/46 ,  G06K9/66 ,  G06K9/62 ,  G06K9/40 ,  H04N7/01 ,  H04N11/20 ,  H04N1/32 ,  H04N1/41 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66 ,  G06K9/36

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：US08238613B2

公开(公告)日：2012-08-07

申请号：US10575676

申请日：2004-10-12

Applicant: Jill MacDonald Boyce ,  Cristina Gomila ,  Joan Llach ,  Alexandros Michael Tourapis ,  Jeffrey Allen Cooper ,  Peng Yin

Inventor： Jill MacDonald Boyce ,  Cristina Gomila ,  Joan Llach ,  Alexandros Michael Tourapis ,  Jeffrey Allen Cooper ,  Peng Yin

IPC: G06K9/00

CPC classification number: H04N5/262 ,  G06T5/002 ,  G06T5/10 ,  G06T2207/20021 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/85

Abstract: The simulation of film grain in an image makes use of parameters contained in a Supplemental Enhancement Information (SEI) message that accompanies the image upon transmission. The SEI message specifies film grain simulation parameters such as the film simulation model, the blending mode, and color space.

Abstract translation: 图像中的胶片颗粒的模拟利用包含在补充增强信息（SEI）消息中的参数，该信息伴随着传输时的图像。 SEI消息指定胶片模拟参数，如电影模拟模型，混合模式和颜色空间。

公开(公告)号：US07852409B2

公开(公告)日：2010-12-14

申请号：US11273067

申请日：2005-11-14

Applicant: Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper ,  Jill MacDonald Boyce

Inventor： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper ,  Jill MacDonald Boyce

IPC: G06F7/58 ,  H04N9/74

CPC classification number: G06F7/582 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85

Abstract: There are provided methods and apparatus for bit-accurate seed initialization for pseudo-random number generators used in a video system. A method includes the steps of creating (205) a look-up table of PRNG seeds, and initializing (210) one of the PRNG seeds from the look-up table for a picture by accessing the look-up table using a value corresponding to an order of the picture.

Abstract translation: 提供了用于在视频系统中使用的伪随机数发生器的比特精确种子初始化的方法和装置。 一种方法包括以下步骤：创建（205）PRNG种子的查找表，以及通过使用对应于...的值访问查找表，从图形的查找表中初始化（210）PRNG种子之一 照片的顺序。

公开(公告)号：US20070117291A1

公开(公告)日：2007-05-24

申请号：US10581151

申请日：2004-12-01

Applicant: Jeffrey Cooper ,  Jill Boyce ,  Alexandros Tourapis ,  Cristina Gomila ,  Joan Llach ,  Peng Yin

Inventor： Jeffrey Cooper ,  Jill Boyce ,  Alexandros Tourapis ,  Cristina Gomila ,  Joan Llach ,  Peng Yin

IPC: H01L33/00 ,  H01L21/84

CPC classification number: G06T11/00 ,  G06T5/002 ,  G06T2207/20021 ,  G06T2207/20204 ,  H04N5/262 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/85

Abstract: Individual pixels in an image block undergo blending with film grain from a film grain block randomly selected from among a pool of previously established film grain blocks in accordance with a luma characteristic of the image block. Prior to blending, the selected film grain block undergoes deblocking by a deblocking filter (28). Following blending, a clipper clips the individual pixels prior to display. The pool of film grain blocks is created by scaling a set of film grain patterns in accordance with at least one parameter of a film grain information message that accompanies the image block.

Abstract translation: 根据图像块的亮度特性，图像块中的各个像素经历与从先前建立的胶片颗粒块池中随机选择的胶片颗粒块的胶片颗粒混合。 在混合之前，所选择的胶片颗粒块通过去块过滤器（28）进行解块。 混合之后，剪辑器会在显示之前剪辑各个像素。 通过根据伴随图像块的胶片颗粒信息消息的至少一个参数缩放一组胶片颗粒图案来创建胶片颗粒块的池。

公开(公告)号：US07945106B2

公开(公告)日：2011-05-17

申请号：US10572820

申请日：2004-09-10

Applicant: Cristina Gomila ,  Joan Llach ,  Jill MacDonald Boyce

Inventor： Cristina Gomila ,  Joan Llach ,  Jill MacDonald Boyce

IPC: G06K9/00 ,  G06K9/36 ,  G06K9/46 ,  G06K9/40 ,  G06K9/20 ,  H04N7/01 ,  H04N11/20 ,  H04N5/917 ,  H04N5/93

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个像素中的连续的一个的平均强度进行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：US20080192817A1

公开(公告)日：2008-08-14

申请号：US11667816

申请日：2005-11-08

Applicant: Joan Llach ,  Cristina Gomila ,  Jeffrey Allen Cooper ,  Jill MacDonald Boyce

Inventor： Joan Llach ,  Cristina Gomila ,  Jeffrey Allen Cooper ,  Jill MacDonald Boyce

IPC: H04N11/04

CPC classification number: G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/159 ,  H04N19/46 ,  H04N19/85

Abstract: There are provided methods and apparatus for film grain SEI message insertion for bit-accurate simulation in a video system. A method for simulating film grain in an ordered sequence includes the steps of providing film grain supplemental information corresponding to a plurality of intra coded pictures, and providing additional film grain supplemental information corresponding to inter coded pictures between consecutive intra coded pictures, in decode order. The inter coded pictures are selected based upon display order.

Abstract translation: 提供了用于在视频系统中进行位精确模拟的胶片颗粒SEI消息插入方法和装置。 一种用于以有序序列模拟胶片颗粒的方法包括以解码顺序提供与多个帧内编码图像相对应的胶片颗粒补充信息以及在连续帧内编码图像之间提供对应于帧间编码图像的附加胶片颗粒补充信息的步骤。 基于显示顺序选择帧间编码图像。

公开(公告)号：US20080152250A1

公开(公告)日：2008-06-26

申请号：US11667846

申请日：2005-09-26

Applicant: Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper

Inventor： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper

IPC: G06K9/40

CPC classification number: G06T5/10 ,  G06T5/002 ,  G06T2207/10016 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/46 ,  H04N19/467 ,  H04N19/85

Abstract: The simulation of film grain in a video image occurs by first creating a block (i.e., a matrix array) of transformed coefficients for a set of cut frequencies fHL, fVL, fHH and fVH associated with a desired grain pattern. (The cut frequencies fHL, fVL, fHH and fVH represent cut-off frequencies, in two dimensions, of a filter that characterizes the desired film grain pattern). The block of transformed coefficients undergoes an inverse transform to yield a bit-accurate film grain sample and the bit accurate sample undergoes scaling to enable blending with a video signal to simulate film grain in the signal.

Abstract translation: 视频图像中的胶片颗粒的模拟是通过首先为一组切割频率f LF，V V L和V L而产生变换系数的块（即，矩阵阵列） ，f H HH和f V H H N，与期望的颗粒图案相关联。 （截止频率f L HL，f VL，f HH和f H V H表示截止频率，在 表示所需胶片颗粒图案的过滤器的两个尺寸）。 变换后的系数块进行逆变换以产生位精确的胶片颗粒样品，并且比特精确的样本进行缩放以使得能够与视频信号混合以模拟信号中的胶片颗粒。

公开(公告)号：US20070269125A1

公开(公告)日：2007-11-22

申请号：US11667629

申请日：2005-10-26

Applicant: Joan Llach ,  Cristina Gomila ,  Jeffrey Cooper

Inventor： Joan Llach ,  Cristina Gomila ,  Jeffrey Cooper

IPC: G06K9/40 ,  G06T9/00

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

Abstract: Bit-accurate creation of a film grain pattern occurs by first establishing a set of bit-accurate transformed coefficients. The set of bit-accurate transformed coefficients undergo frequency filtering and a subsequent bit-accurate inverse transformation to yield the film grain pattern.

Abstract translation: 通过首先建立一组比特精确的变换系数来产生胶片颗粒图案的位精确的创建。 位精度变换系数的集合经历频率滤波和随后的比特精确逆变换以产生胶片颗粒图案。

公开(公告)号：US20070058866A1

公开(公告)日：2007-03-15

申请号：US10575501

申请日：2004-10-12

Applicant: Jill Boyce ,  Cristina Gomila ,  Joan Llach ,  Alexandros Tourapis ,  Jeffrey Cooper ,  Peng Yin

Inventor： Jill Boyce ,  Cristina Gomila ,  Joan Llach ,  Alexandros Tourapis ,  Jeffrey Cooper ,  Peng Yin

IPC: G06K9/00

CPC classification number: H04N5/262 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/85 ,  H04N19/86

Abstract: The addition of comfort noise to an image serves to hide compression artifacts. To facilitate comfort noise addition, supplemental information accompanying a video image contains at least one parameter that specifies an attribute regarding comfort noise. Typically, the supplemental information includes parameters that function to turn the comfort noise on and off, as well as to indicate the level of noise to add, based on the expected level of compression artifacts.

Abstract translation: 向图像添加舒适噪声用于隐藏压缩伪影。 为了促进舒适噪声添加，附带视频图像的补充信息包含至少一个指定关于舒适噪声的属性的参数。 通常，补充信息包括用于打开和关闭舒适噪声的参数，以及基于预期的压缩伪像水平来指示要添加的噪声的水平。

公开(公告)号：US08483288B2

公开(公告)日：2013-07-09

申请号：US11284378

申请日：2005-11-21

Applicant: Jeffrey Allen Cooper ,  Cristina Gomila ,  Joan Llach

Inventor： Jeffrey Allen Cooper ,  Cristina Gomila ,  Joan Llach

IPC: H04N7/12

CPC classification number: G06T5/002 ,  G06T2207/20204 ,  H04N19/423 ,  H04N19/61 ,  H04N19/80

Abstract: The present invention provides a method, apparatus and system for film grain cache splitting for film grain simulation. In one embodiment of the present invention a method for storing film grain patterns includes storing at least a first portion of film grain patterns in an internal memory and storing at least a second portion of the film grain patterns in an external memory. That is, in the present invention a method for film grain cache splitting for film grain simulation includes splitting the storage of film grain patterns between an internal cache and an external memory. In one embodiment of the present invention, the internal cache is integrated into an integrated circuit chip of a decoder.

Abstract translation: 本发明提供了一种胶片颗粒高速缓冲分割用于胶片颗粒模拟的方法，装置和系统。 在本发明的一个实施例中，用于存储胶片颗粒图案的方法包括将至少第一部分胶片颗粒图案存储在内部存储器中，并将胶片颗粒图案的至少第二部分存储在外部存储器中。 也就是说，在本发明中，用于胶片颗粒模拟的胶片颗粒高速缓存分割的方法包括分割内部高速缓存和外部存储器之间的胶片颗粒图案的存储。 在本发明的一个实施例中，内部高速缓存集成到解码器的集成电路芯片中。