公开(公告)号：US20100067803A1

公开(公告)日：2010-03-18

申请号：US12312744

申请日：2007-11-30

Applicant: Yu Huang ,  Joan Llach

Inventor： Yu Huang ,  Joan Llach

IPC: G06K9/46

CPC classification number: G06K9/32 ,  G06K2009/3291 ,  G06T7/277 ,  G06T2207/10016 ,  G06T2207/30224 ,  G06T2207/30241

Abstract: An implementation provides a method for determining a trajectory of an object in a particular image in a sequence of digital images, the trajectory being based on one or more previous locations of the object in one or more previous images in the sequence. A weight is determined, for a particle in a particle-based framework for tracking the object, based on distance from the trajectory to the particle. A location estimate is determined for the object using the particle-based framework, the location estimate being based on the determined particle weight.

Abstract translation: 实现提供了一种用于确定数字图像序列中的特定图像中的对象的轨迹的方法，该轨迹基于该序列中的一个或多个先前图像中的对象的一个​​或多个先前位置。 基于从轨迹到粒子的距离来确定用于跟踪对象的基于粒子的框架中的粒子的权重。 使用基于粒子的框架为对象确定位置估计，位置估计基于确定的粒子重量。

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：US20090238406A1

公开(公告)日：2009-09-24

申请号：US12311266

申请日：2006-12-19

Applicant: Yu Huang ,  Joan Llach

Inventor： Yu Huang ,  Joan Llach

IPC: G06K9/00

CPC classification number: G06F17/5009 ,  G06F2217/16 ,  G06T7/277 ,  G06T2207/10016 ,  G06T2207/30221 ,  G06T2207/30224 ,  G06T2207/30241

Abstract: According to an implementation, a set of particles is provided for use in estimating a location of a state of a dynamic system. A local-mode seeking mechanism is applied to move one or more particles in the set of particles, and the number of particles in the set of particles is modified. The location of the state of the dynamic system is estimated using particles in the set of particles. Another implementation provides dynamic state estimation using a particle filter for which the particle locations are modified using a local-mode seeking algorithm based on a mean-shift analysis and for which the number of particles is adjusted using a Kullback-Leibler-distance sampling process. The mean-shift analysis may reduce degeneracy in the particles, and the sampling process may reduce the computational complexity of the particle filter. The implementation may be useful with non-linear and non-Gaussian systems.

Abstract translation: 根据实施方式，提供一组粒子用于估计动态系统状态的位置。 应用本地模式寻找机制来移动该组粒子中的一个或多个粒子，并且修改该组粒子中的粒子的数量。 使用该组粒子中的粒子来估计动态系统状态的位置。 另一个实现方案使用粒子滤波器提供动态状态估计，使用基于平均移位分析的局部模式搜索算法对粒子位置进行修改，并且使用Kullback-Leibler-distance采样过程来调整粒子的数量。 均值分析可以减少粒子的退化，采样过程可能会降低粒子滤波器的计算复杂度。 该实现对于非线性和非高斯系统可能是有用的。

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.