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公开(公告)号：US08014558B2
公开(公告)日：2011-09-06
申请号：US11246474
申请日：2005-10-07
Applicant: Jeffrey Allen Cooper , Joan Llach , Cristina Gomila
Inventor： Jeffrey Allen Cooper , Joan Llach , Cristina Gomila
IPC: G06K9/00
CPC classification number: G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
Abstract: The present invention provides a method, apparatus and system for providing fast access to film grain patterns in a film grain simulation process including providing a first memory storing at least one film grain pattern and in response to a film grain pattern required by the film grain simulation process not being stored in the first memory, updating the first memory to obtain at least the required film grain pattern from at least a second memory. In one embodiment, the first memory is a local cache, the second memory is a film grain pattern database and a controller causes the examination of the local cache for a particular film grain pattern required in the film grain simulation process. In response to the required film grain pattern not being stored in the local cache, the controller causes the update of the local cache using the film grain pattern database.
Abstract translation: 本发明提供了一种用于在胶片颗粒模拟过程中提供对胶片颗粒图案的快速访问的方法，装置和系统，包括提供存储至少一个胶片颗粒图案的第一存储器和响应于胶片颗粒模拟所需的胶片颗粒图案 处理不被存储在第一存储器中，更新第一存储器以从至少第二存储器获得至少所需的胶片颗粒图案。 在一个实施例中，第一存储器是本地高速缓存，第二存储器是胶片颗粒图案数据库，并且控制器对胶片颗粒模拟过程中所需的特定胶片颗粒图案的本地高速缓存进行检查。 响应于所需的胶片颗粒图案不存储在本地高速缓存中，控制器使用胶片颗粒图案数据库来使本地高速缓存更新。
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52.发明授权Method and apparatus for reading film grain patterns in a raster order in film grain simulation 有权在胶片颗粒模拟中以光栅顺序读取胶片颗粒图案的方法和装置公开(公告)号：US07982743B2
公开(公告)日：2011-07-19
申请号：US11251696
申请日：2005-10-17
Applicant: Jeffrey Allen Cooper , Joan Llach , Cristina Gomila
Inventor： Jeffrey Allen Cooper , Joan Llach , Cristina Gomila
IPC: G09G5/00
CPC classification number: G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
Abstract: The present invention provides a method and apparatus for reading film grain patterns in a raster order in film grain simulation including establishing a pseudo-random starting position, repeating the pseudo-random starting position for each line of a group of film grain blocks, and using a different pseudo-random starting position for each display line of a next group of film grain blocks. In various embodiments of the present invention, the different pseudo-random starting positions are triggered by resetting at least one seed value of a pseudo-random number generator implemented to determine said pseudo-random starting positions.
Abstract translation: 本发明提供了一种用于在胶片颗粒模拟中以光栅顺序读取胶片颗粒图案的方法和装置，包括建立伪随机开始位置，重复一组胶片颗粒块的每一行的伪随机起始位置，以及使用 对于下一组胶片颗粒块的每个显示线的不同的伪随机开始位置。 在本发明的各种实施例中，不同的伪随机起始位置通过复位实现以确定所述伪随机起始位置的伪随机数发生器的至少一个种子值来触发。
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公开(公告)号：US07680356B2
公开(公告)日：2010-03-16
申请号：US10575501
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: G06K9/40
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。
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公开(公告)号：US20070047658A1
公开(公告)日：2007-03-01
申请号：US10572690
申请日：2004-09-21
Applicant: Alexandros Tourapis , Jill MacDonald , Joan Llach
Inventor： Alexandros Tourapis , Jill MacDonald , Joan Llach
CPC classification number: H04N19/85 , G06T5/001 , G06T2207/20204 , H04N5/21 , H04N5/4401 , H04N19/86 , Y02E60/324
Abstract: A decoding arrangement for decoding pictures in an incoming video stream includes a noise generator for adding a dither signal containing random noise to the pictures after video decoding, to improve the subjective video quality. The noise generator adds noise to each pixel in an amount correlated to the luminance of at least a portion of the current picture.
Abstract translation: 用于对输入视频流中的图像进行解码的解码装置包括：噪声发生器，用于在视频解码之后将包含随机噪声的抖动信号加到图像上，以改善主观视频质量。 噪声发生器以与当前图像的至少一部分的亮度相关的量向每个像素增加噪声。
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55.发明申请Bit-accurate seed initialization for pseudo-random number generators used in a video system 有权在视频系统中使用的伪随机数发生器的位精确种子初始化公开(公告)号：US20060114988A1
公开(公告)日：2006-06-01
申请号：US11273067
申请日：2005-11-14
Applicant: Cristina Gomila , Joan Llach , Jeffrey Cooper , Jill Boyce
Inventor： Cristina Gomila , Joan Llach , Jeffrey Cooper , Jill Boyce
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...的值访问查找表来初始化（210）来自用于图片的查找表中的一个PRNG种子 照片的顺序。
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Patent Agency Ranking
56.发明申请Film grain simulation for normal play and trick mode play for video playback systems 有权视频播放系统的正常播放和特技模式播放的胶片颗粒模拟公开(公告)号：US20060104608A1
公开(公告)日：2006-05-18
申请号：US11268070
申请日：2005-11-07
Applicant: Joan Llach , Jeffrey Cooper , Cristina Gomila
Inventor： Joan Llach , Jeffrey Cooper , Cristina Gomila
IPC: H04N5/783
CPC classification number: H04N5/783 , G06T5/002 , G06T5/10 , G06T2207/10016 , G06T2207/20204 , H04N9/8042 , H04N19/117 , H04N19/159 , H04N19/172 , H04N19/44 , H04N19/46 , H04N19/61 , H04N19/85 , H04N19/86
Abstract: There is provided method and apparatus for film grain simulation for normal play and trick mode play for video playback systems. A method for simulating film grain in video includes the step of performing (214) film grain simulation on a sequence of decoded video pictures in decode order.
Abstract translation: 提供了用于视频播放系统的正常播放和特技模式播放的胶片颗粒模拟的方法和装置。 用于模拟视频中的胶片颗粒的方法包括以解码顺序对解码的视频图像序列执行（214）胶片颗粒模拟的步骤。
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57.发明申请Method and apparatus for reading film grain patterns in a raster order in film grain simulation 有权在胶片颗粒模拟中以光栅顺序读取胶片颗粒图案的方法和装置公开(公告)号：US20060083426A1
公开(公告)日：2006-04-20
申请号：US11251696
申请日：2005-10-17
Applicant: Jeffrey Cooper , Joan Llach , Cristina Gomila
Inventor： Jeffrey Cooper , Joan Llach , Cristina Gomila
IPC: G06K9/00
CPC classification number: G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
Abstract: The present invention provides a method and apparatus for reading film grain patterns in a raster order in film grain simulation including establishing a pseudo-random starting position, repeating the pseudo-random starting position for each line of a group of film grain blocks, and using a different pseudo-random starting position for each display line of a next group of film grain blocks. In various embodiments of the present invention, the different pseudo-random starting positions are triggered by resetting at least one seed value of a pseudo-random number generator implemented to determine said pseudo-random starting positions.
Abstract translation: 本发明提供了一种用于在胶片颗粒模拟中以光栅顺序读取胶片颗粒图案的方法和装置，包括建立伪随机开始位置，重复一组胶片颗粒块的每一行的伪随机起始位置，以及使用 对于下一组胶片颗粒块的每个显示线的不同的伪随机开始位置。 在本发明的各种实施例中，不同的伪随机起始位置通过复位实现以确定所述伪随机起始位置的伪随机数发生器的至少一个种子值来触发。
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公开(公告)号：US20060083316A1
公开(公告)日：2006-04-20
申请号：US11252320
申请日：2005-10-17
Applicant: Jeffrey Cooper , Joan Llach , Cristina Gomila
Inventor： Jeffrey Cooper , Joan Llach , Cristina Gomila
CPC classification number: G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
Abstract: The present invention provides methods for determining block averages in film grain simulation including determining block averages during a display process and determining block averages during a decoding process. The methods of the present invention exhibit different characteristics in terms of memory requirements and computational cost. More specifically, the first method uses no external memory, but requires either extra reads of the blocks, or internal memory in the display pipeline, while the second method requires extra memory bandwidth and extra external memory (e.g., RAM).
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公开(公告)号：US09230315B2
公开(公告)日：2016-01-05
申请号：US13991567
申请日：2010-12-08
Applicant: Timothy Alan Barrett , Pierre Hughes Routhier , Joan Llach , Ben Crosby
Inventor： Timothy Alan Barrett , Pierre Hughes Routhier , Joan Llach , Ben Crosby
CPC classification number: G06T7/00 , G06K9/46 , G06T15/00 , G06T15/20 , G06T2200/08 , G06T2200/16 , H04N13/261 , H04N13/30
Abstract: Automatic determination of the complexity associated with converting image content from 2-dimensions to 3-dimensions commences by first determining how many different scenes exist within the image content. Each scene then undergoes analysis to determine its complexity based on the motion, texture and occlusion within the scene. The scene complexities are added to the scene transition complexity and the total gets weighted to yield an overall indication of the complexity of converting of image content from 2-dimensions to 3-dimensions.
Abstract translation: 通过首先确定图像内容中存在多少不同场景，自动确定将图像内容从二维转换为三维的相关开始。 然后每个场景进行分析以根据场景内的运动，纹理和遮挡来确定其复杂性。 场景复杂性被添加到场景转换复杂性，并且总体被加权以产生将图像内容从二维转换为三维的复杂性的总体指示。
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60.发明授权公开(公告)号：US09177364B2
公开(公告)日：2015-11-03
申请号：US11667581
申请日：2005-10-26
Applicant: Cristina Gomila , Joan Llach
Inventor： Cristina Gomila , Joan Llach
IPC: H04N7/12 , G06T5/00 , G06T5/10 , H04N19/176 , H04N19/46 , H04N19/117 , H04N19/136 , H04N19/80 , H04N19/85
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 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，发生接收器内的胶片颗粒模拟。 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，频率范围在二维的滤波器的切割频率fHL，fVL，fHH和fVH的集合中，其表征期望的胶片颗粒图案。 此后，经滤波的系数组经过逆变换以产生胶片颗粒图案。
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