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公开(公告)号：US08447127B2
公开(公告)日：2013-05-21
申请号：US12589217
申请日：2009-10-20
IPC分类号： 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分类号： H04N5/262 , G06T5/002 , G06T2207/10016 , G06T2207/20204 , H04N19/117 , H04N19/176 , H04N19/46 , H04N19/467 , H04N19/80 , H04N19/85 , H04N19/86
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08238613B2
公开(公告)日：2012-08-07
申请号：US10575676
申请日：2004-10-12
申请人： Jill MacDonald Boyce , Cristina Gomila , Joan Llach , Alexandros Michael Tourapis , Jeffrey Allen Cooper , Peng Yin
发明人： Jill MacDonald Boyce , Cristina Gomila , Joan Llach , Alexandros Michael Tourapis , Jeffrey Allen Cooper , Peng Yin
IPC分类号： G06K9/00
CPC分类号： H04N5/262 , G06T5/002 , G06T5/10 , G06T2207/20021 , G06T2207/20052 , G06T2207/20204 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/85
摘要： 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.
摘要翻译： 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。
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3.发明授权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：US07852409B2
公开(公告)日：2010-12-14
申请号：US11273067
申请日：2005-11-14
摘要： 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.
摘要翻译： 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。
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4.发明申请Film Grain Sei Message Insertion For Bit-Accurate Simulation In A Video System 有权视频系统中的比特精确模拟的电影谷歌消息插入公开(公告)号：US20080192817A1
公开(公告)日：2008-08-14
申请号：US11667816
申请日：2005-11-08
IPC分类号： H04N11/04
CPC分类号： G06T5/002 , G06T2207/10016 , G06T2207/20204 , H04N19/117 , H04N19/159 , H04N19/46 , H04N19/85
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20080152250A1
公开(公告)日：2008-06-26
申请号：US11667846
申请日：2005-09-26
IPC分类号： G06K9/40
CPC分类号： G06T5/10 , G06T5/002 , G06T2207/10016 , G06T2207/20052 , G06T2207/20204 , H04N19/46 , H04N19/467 , H04N19/85
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US09117260B2
公开(公告)日：2015-08-25
申请号：US11252320
申请日：2005-10-17
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66 , G06T5/00 , H04N19/46 , H04N19/44 , H04N19/467 , H04N19/423 , H04N19/85
CPC分类号： G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
摘要： 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).
摘要翻译： 本发明提供用于确定胶片颗粒模拟中的块平均的方法，包括在显示处理期间确定块平均值，并在解码过程期间确定块平均值。 本发明的方法在记忆要求和计算成本方面表现出不同的特征。 更具体地说，第一种方法不使用外部存储器，但是需要对显示管道中的块或内部存储器进行额外读取，而第二种方法需要额外的存储器带宽和额外的外部存储器（例如，RAM）。
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7.发明授权Bit-accurate film grain simulation method based on pre-computed transformed coefficients 有权基于预先计算的变换系数的位精度胶片颗粒模拟方法公开(公告)号：US09098916B2
公开(公告)日：2015-08-04
申请号：US11667629
申请日：2005-10-26
IPC分类号： G06K9/36 , G06K9/40 , G06T5/10 , G06T5/00 , H04N19/176 , H04N19/46 , H04N19/117 , H04N19/136 , H04N19/80 , H04N19/85
CPC分类号： G06T5/10 , G06T5/002 , G06T2207/10016 , G06T2207/20052 , G06T2207/20204 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/80 , H04N19/85
摘要： Creation of a Bit-accurate film grain pattern for blending in an image block 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. The film grain pattern can then undergo blending with an image block to restore the look of film to the image.
摘要翻译： 通过首先建立一组比特精确的变换系数，产生用于在图像块中混合的比特精确的胶片颗粒图案。 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。 然后可以将胶片颗粒图案与图像块进行混合，以恢复胶片对图像的外观。
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8.发明授权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：US08447124B2
公开(公告)日：2013-05-21
申请号：US11268070
申请日：2005-11-07
CPC分类号： 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
摘要： 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.
摘要翻译： 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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公开(公告)号：US08014558B2
公开(公告)日：2011-09-06
申请号：US11246474
申请日：2005-10-07
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
摘要： 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.
摘要翻译： 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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10.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
IPC分类号： G09G5/00
CPC分类号： G06T5/002 , G06F17/30784 , G06T2207/10016 , G06T2207/20204 , G11B27/031 , H04N5/775 , H04N9/8715 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/467 , H04N19/85
摘要： 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.
摘要翻译： 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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