公开(公告)号：US20090251490A1

公开(公告)日：2009-10-08

申请号：US12227465

申请日：2007-05-08

Applicant: Dekun Zou ,  Jun Tian ,  Jiefu Zhai ,  Jeffrey Adam Bloom ,  Joan Llach

Inventor： Dekun Zou ,  Jun Tian ,  Jiefu Zhai ,  Jeffrey Adam Bloom ,  Joan Llach

IPC: G09G5/00

CPC classification number: H04N1/32251 ,  H04N1/32309 ,  H04N2201/3205 ,  H04N2201/3214 ,  H04N2201/3215 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/3239

Abstract: Information available at a decoder is embedded into image content after decoding by first representing that information by at least one film grain pattern and then blending that at least one film grain pattern with the decoded image content. Such image content is typically in the form of a movie and examples of the information to be embedded include identification of the specific decoding device, the user of the decoding device, the time and date of decoding, the model number of the device, the versions of software running on the device, the status of the device or connections to the device, the contents of device registers or memory locations within the device, among many other possible data. When an unauthorized copy of image content is discovered, the copied image content undergoes a comparison to the decoded image content to generate difference data. Thereafter, the difference data undergoes comparison with a database of film grain patterns to recover the embedded data.

Abstract translation: 通过首先通过至少一个胶片颗粒图案表示该信息，然后将该至少一个胶片颗粒图案与解码的图像内容进行混合，将解码器可用的信息嵌入到解码之后的图像内容中。 这样的图像内容通常是电影的形式，并且要嵌入的信息的示例包括特定解码装置的识别，解码装置的用户，解码的时间和日期，装置的型号，版本 在设备上运行的软件，设备的状态或与设备的连接，设备寄存器的内容或设备内的存储器位置以及许多其他可能的数据。 当发现图像内容的未授权复制时，复制的图像内容经历与解码图像内容的比较以产生差异数据。 此后，差分数据与胶片颗粒图案的数据库进行比较以恢复嵌入数据。

公开(公告)号：US20060292837A1

公开(公告)日：2006-12-28

申请号：US10569318

申请日：2004-04-07

Applicant: Cristina Gomila ,  Joan Llach

Inventor： Cristina Gomila ,  Joan Llach

IPC: H01L21/20

CPC classification number: G06T5/002 ,  G06T5/10 ,  G06T2207/10016 ,  G06T2207/20204 ,  H04N19/467 ,  H04N19/70 ,  H04N19/86

Abstract: Film grain patterns can be modeled in the frequency domain by estimating the cut frequencies that define a 2D band-pass filter. The film grain parameters can be conveyed in accordance with the ITU-T H.264|MPEG-4 AVC standard in an SEI message allowing film grain reinsertion at a decoder.

Abstract translation: 通过估计定义2D带通滤波器的切割频率，可以在频域中建模胶片颗粒图案。 可以根据ITU-T H.264 | MPEG-4AVC标准在SEI消息中传送胶片颗粒参数，从而允许在解码器处重新插入胶片。

公开(公告)号：US20060193526A1

公开(公告)日：2006-08-31

申请号：US10563711

申请日：2004-05-28

Applicant: Jill Boyce ,  Joan Llach

Inventor： Jill Boyce ,  Joan Llach

IPC: G06K9/36

CPC classification number: H04N19/117 ,  H04N19/139 ,  H04N19/176

Abstract: Noise reduction is achieved during video encoding with low complexity by making use of the motion estimation decision sets for noise reduction. Motion estimation is performed N times (where N is integer) on each macroblock to yield N sets of motion estimation data, each set including a reference picture index and a motion vector. Typically, although not necessarily, each set of motion estimation data makes use of a different reference picture. For each macroblock, the N sets of motion estimation data are used to create a noise-reduced macroblock, which is then encoded.

Abstract translation: 通过利用用于降噪的运动估计决策集，在低复杂度的视频编码期间实现降噪。 在每个宏块上执行N次（其中N是整数）的运动估计，以产生N组运动估计数据，每组包括参考图像索引和运动矢量。 通常，虽然不一定，每组运动估计数据使用不同的参考图片。 对于每个宏块，N组运动估计数据用于创建噪声降低的宏块，然后对其进行编码。

公开(公告)号：US20060115175A1

公开(公告)日：2006-06-01

申请号：US11284378

申请日：2005-11-21

Applicant: Jeffrey Cooper ,  Cristina Gomila ,  Joan Llach

Inventor： Jeffrey Cooper ,  Cristina Gomila ,  Joan Llach

IPC: G06K9/40

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.

公开(公告)号：US20060083314A1

公开(公告)日：2006-04-20

申请号：US11246474

申请日：2005-10-07

Applicant: Jeffrey Cooper ,  Joan Llach ,  Cristina Gomila

Inventor： Jeffrey Cooper ,  Joan Llach ,  Cristina Gomila

IPC: H04N11/02 ,  H04N11/04 ,  H04N7/12 ,  H04B1/66

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。

公开(公告)号：US20060082649A1

公开(公告)日：2006-04-20

申请号：US11246848

申请日：2005-10-07

Applicant: Cristina Gomila ,  Joan Llach ,  Jeffrey Cooper

Inventor： Cristina Gomila ,  Joan Llach ,  Jeffrey Cooper

IPC: H04N9/11

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.

公开(公告)号：US06628710B1

公开(公告)日：2003-09-30

申请号：US09610720

申请日：2000-07-06

Applicant: Joan Llach-Pinsach ,  Philippe Salembier

Inventor： Joan Llach-Pinsach ,  Philippe Salembier

IPC: H04N712

CPC classification number: G06F17/30802 ,  G06F17/30858 ,  G11B27/28 ,  H04N5/147

Abstract: The invention relates to a method intended to automatically create a description of a video sequence—i.e. its table of contents—, by means of an analysis of the sequence. The main steps of the method are a shot detection, a sub-division of these shots into sub-entities called micro-segments, and the creation of the final hierarchical structure of the processed sequence. According to the invention, the shot detection step computes the mean displaced frame difference curve, detects the highest peaks of said curve, removes, by filtering, some negative or positive peaks, extracts markers, and propagates them on the curve.

Abstract translation: 本发明涉及一种旨在自动创建视频序列的描述的方法，即， 其目录 - 通过对序列的分析。 该方法的主要步骤是镜头检测，将这些照片分割成称为微片段的子实体，以及创建经处理序列的最终分层结构。 根据本发明，拍摄检测步骤计算平均位移帧差异曲线，检测所述曲线的最高峰，通过滤波去除一些负峰或正峰，提取标记并在曲线上传播它们。