公开(公告)号：US07701462B2

公开(公告)日：2010-04-20

申请号：US11507646

申请日：2006-08-22

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G09G5/02

CPC classification number: H04N9/045 ,  H04N1/608 ,  H04N9/64

Abstract: A method and system for adjusting saturation in digital images that operates as closely as possible to the long-, medium-, short-(LMS) cone spectral response space. According to the method, a sensor component image such as an RGB image from a digital imager is input and converted to the LMS space. White point adaptation and equalization are performed on the LMS data. The saturation adjustment is then performed by applying a stretching transformation to the L and S LMS components with respect to the M component of each pixel.

Abstract translation: 一种用于调整数字图像中的饱和度的方法和系统，其操作尽可能接近长，中，短（LMS）锥谱响应空间。 根据该方法，输入来自数字成像器的诸如RGB图像的传感器部件图像并将其转换为LMS空间。 对LMS数据执行白点适应和均衡。 然后通过相对于每个像素的M分量对L和S LMS分量应用拉伸变换来执行饱和度调整。

公开(公告)号：US07110598B2

公开(公告)日：2006-09-19

申请号：US10228947

申请日：2002-08-28

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G06K9/00 ,  G06F13/00

CPC classification number: G06T5/007 ,  G06T2207/10024 ,  G06T2207/10152

Abstract: An electronic imaging system operates as closely as possible to the cone spectral response space to obtain a human eye-like long, medium, short (LMS) wavelength response. An input image, for example, red-green-blue (RGB), is transformed to an LMS color space similar to the human long-, middle-, and short-wavelength cone receptor responses. Adaptation levels for each LMS component are calculated. The adaptation levels are then used to adjust the sensitivity of each LMS sensor response to obtain an LMS component image. The LMS component image then is transformed back to an RGB component image for further processing or display.

Abstract translation: 电子成像系统尽可能接近锥形光谱响应空间，以获得人眼长，中，短（LMS）波长响应。 输入图像，例如红 - 绿 - 蓝（RGB），被转换成类似于人类长，中，短波长锥体受体响应的LMS色彩空间。 计算每个LMS组件的适应度。 然后，适应级别用于调整每个LMS传感器响应的灵敏度以获得LMS分量图像。 然后将LMS分量图像转换回RGB分量图像以进一步处理或显示。

公开(公告)号：US06731815B1

公开(公告)日：2004-05-04

申请号：US09518428

申请日：2000-03-03

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G06K936

CPC classification number: H04N19/85 ,  H04N19/117 ,  H04N19/134 ,  H04N19/15 ,  H04N19/61 ,  H04N19/80

Abstract: Human vision based pre-processing for MPEG video compression uses light intensity. An input video signal is input to a contrast gain control circuit where a Gaussian pyramid is constructed. The reduced pyramid image serves as a local light level. The reduced pyramid image also is processed to obtain a global light center. The difference between the local light level and the global light center is used as an index to a lookup table that provides a local gain control signal. The local gain control signal and a global gain control signal input to the contrast gain control circuit are used to multiply a Laplacian image derived from the input image, the resulting modified Laplacian image being subtracted from an equivalent lowpass filtered video image to produce a pre-processed output video signal having reduced bandwidth for input to an MPEG2 compressor.

Abstract translation: 基于人类视觉的MPEG视频压缩预处理使用光强度。 输入视频信号被输入到构成高斯金字塔的对比度增益控制电路。 减少的金字塔图像用作局部光级。 减少的金字塔图像也被处理以获得全局光中心。 局部光级和全局光中心之间的差异被用作提供局部增益控制信号的查找表的索引。 输入到对比度增益控制电路的本地增益控制信号和全局增益控制信号用于乘以从输入图像导出的拉普拉斯算子图像，从等效低通滤波视频图像中减去所得到的修正拉普拉斯图像， 经处理的输出视频信号具有减小的带宽以输入到MPEG2压缩器。

公开(公告)号：US07307860B2

公开(公告)日：2007-12-11

申请号：US11331890

申请日：2006-01-12

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G11C15/00

CPC classification number: G11C15/043 ,  G11C15/04

Abstract: A static content addressable memory (CAM) cell. The CAM cell includes a latch having complementary data nodes capacitively coupled to ground, first and second access transistors, each coupled between a data node of the latch and a respective data line. The gates of each access transistor is coupled to a word line such that when activated, the respective data node and data line are coupled. The CAM cell further includes a match circuit coupled to one of the complementary data nodes of the latch. The match circuit discharges a match line in response to a data value stored at the data node to which the match circuit is coupled and compare data present on the respective data line mismatching. Two of the CAM cells can be used to implement a full ternary CAM cell.

公开(公告)号：US07269040B2

公开(公告)日：2007-09-11

申请号：US11331889

申请日：2006-01-12

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G11C15/00

CPC classification number: G11C15/043 ,  G11C15/04

Abstract: A static content addressable memory (CAM) cell. The CAM cell includes a latch having complementary data nodes capacitively coupled to ground, first and second access transistors, each coupled between a data node of the latch and a respective data line. The gates of each access transistor is coupled to a word line such that when activated, the respective data node and data line are coupled. The CAM cell further includes a match circuit coupled to one of the complementary data nodes of the latch. The match circuit discharges a match line in response to a data value stored at the data node to which the match circuit is coupled and compare data present on the respective data line mismatching. Two of the CAM cells can be used to implement a full ternary CAM cell.

Abstract translation: 静态内容可寻址存储器（CAM）单元。 CAM单元包括具有电容耦合到地的互补数据节点的锁存器，第一和第二存取晶体管，每个耦合在锁存器的数据节点和相应的数据线之间。 每个存取晶体管的栅极耦合到字线，使得当被激活时，相应的数据节点和数据线被耦合。 CAM单元还包括耦合到锁存器的互补数据节点之一的匹配电路。 匹配电路响应于与匹配电路耦合的数据节点存储的数据值放电匹配线，并比较存在于相应数据线不匹配的数据。 可以使用两个CAM单元来实现完整的三元CAM单元。

公开(公告)号：US07099172B2

公开(公告)日：2006-08-29

申请号：US11122490

申请日：2005-05-04

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G11C15/00

CPC classification number: G11C15/043 ,  G11C15/04

Abstract: A static content addressable memory (CAM) cell. The CAM cell includes a latch having complementary data nodes capacitively coupled to ground, first and second access transistors, each coupled between a data node of the latch and a respective data line. The gates of each access transistor is coupled to a word line such that when activated, the respective data node and data line are coupled. The CAM cell further includes a match circuit coupled to one of the complementary data nodes of the latch. The match circuit discharges a match line in response to a data value stored at the data node to which the match circuit is coupled and compare data present on the respective data line mismatching. Two of the CAM cells can be used to implement a full ternary CAM cell.

公开(公告)号：US06778604B1

公开(公告)日：2004-08-17

申请号：US09186754

申请日：1998-11-05

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: H04N732

CPC classification number: H04N19/124 ,  H04N19/117 ,  H04N19/51

Abstract: A motion compensation improvement for a compression encoder minimizes redundant edge information in a current image from a video input signal being input to the compression encoder. The current image is compared with a reference image from the video signal, which images may be the entire picture or a sub-region of the picture, to provide a spatial shift difference between the images, the spatial shift difference having an integer part and a high precision fractional part. From the high precision fractional part and specified constants for the compression encoder a shift value is calculated such that, when shifted, the current image is aligned with a quantizer motion vector grid in the compression encoder. The shift value is then used to resample the current image to make the desired shift prior to input to the compression encoder, thereby minimizing redundant edge information.

Abstract translation: 用于压缩编码器的运动补偿改进使来自输入到压缩编码器的视频输入信号的当前图像中的冗余边缘信息最小化。 将当前图像与来自视频信号的参考图像进行比较，哪些图像可以是图像的整个图像或子区域，以提供图像之间的空间偏移差，具有整数部分的空间偏移差和 高精度分数部分。 根据压缩编码器的高精度分数部分和规定常数，计算偏移值，使得当移位时，当前图像与压缩编码器中的量化器运动矢量网格对准。 然后使用移位值对当前图像进行重新取样，以在输入到压缩编码器之前进行所需的移位，从而最小化冗余边缘信息。

公开(公告)号：US06594397B1

公开(公告)日：2003-07-15

申请号：US09518429

申请日：2000-03-03

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: G06K936

CPC classification number: H04N19/53 ,  G06T7/207 ,  H04N19/527 ,  H04N19/56 ,  H04N19/96

Abstract: An adaptive multi-modal motion estimation algorithm for video compression builds a luminance pyramid for each image of a moving image sequence. From the top level image of the luminance pyramid a global motion vector is determined between images at times t and t+n. The global motion vector is used as a pivot point and to define a search area. For each block of a current top level image a search for a match is carried out around the pivot point within the search area. The resulting block motion vectors serve as initial conditions for the next higher resolution level. A refinement process results in a displaced frame difference value (DFD) for each block as an error measure. If the error measure is small, the motion vector is chosen as the motion vector for the current block. If the error measure is large, then a search within the search area around a zero motion pivot point is conducted. The motion vector that results in the smallest error measure is chosen as the motion vector for the current block. The refinement and zero pivot searches are repeated for each level down to the full resolution base of the pyramid, resulting in the desired estimated motion vectors for the image.

Abstract translation: 用于视频压缩的自适应多模态运动估计算法为运动图像序列的每个图像建立亮度金字塔。 从亮度金字塔的顶级图像，在时间t和t + n的图像之间确定全局运动矢量。 全局运动矢量用作枢轴点并定义搜索区域。 对于当前顶级图像的每个块，搜索区域内的枢轴点周围进行匹配搜索。 所得到的块运动矢量用作下一较高分辨率水平的初始条件。 精化过程导致每个块的位移帧差值（DFD）作为误差测量。 如果误差测量小，则选择运动矢量作为当前块的运动矢量。 如果误差测量值较大，则在零运动枢轴点周围的搜索范围内进行搜索。 导致最小误差测量的运动矢量被选作当前块的运动矢量。 对于每个级别重复细化和零点搜索，直到金字塔的全分辨率基底，导致图像的期望的估计运动矢量。

公开(公告)号：US08866920B2

公开(公告)日：2014-10-21

申请号：US12952134

申请日：2010-11-22

Applicant: Kartik Venkataraman ,  Amandeep S. Jabbi ,  Robert H. Mullis ,  Jacques Duparre ,  Shane Ching-Feng Hu

Inventor： Kartik Venkataraman ,  Amandeep S. Jabbi ,  Robert H. Mullis ,  Jacques Duparre ,  Shane Ching-Feng Hu

IPC: H04N5/225 ,  H04N9/04 ,  H04N5/355 ,  H04N5/341 ,  H04N5/232 ,  H04N5/33 ,  H04N5/349 ,  H04N5/357 ,  H04N9/083 ,  H04N13/02

CPC classification number: H04N5/247 ,  G02B3/0056 ,  G02B3/0062 ,  G02B5/20 ,  G02B5/201 ,  G02B13/0015 ,  G06T7/557 ,  G06T11/60 ,  G06T19/20 ,  G06T2200/04 ,  G06T2207/10028 ,  G06T2207/10052 ,  G06T2207/20221 ,  H04N5/2253 ,  H04N5/2254 ,  H04N5/2258 ,  H04N5/23232 ,  H04N5/23238 ,  H04N5/23296 ,  H04N5/262 ,  H04N5/265 ,  H04N5/332 ,  H04N5/3415 ,  H04N5/349 ,  H04N5/35545 ,  H04N5/357 ,  H04N5/365 ,  H04N9/045 ,  H04N9/09 ,  H04N9/097 ,  H04N9/735 ,  H04N13/128 ,  H04N13/239 ,  H04N13/257 ,  H04N2013/0081

Abstract: Systems and methods for implementing array cameras configured to perform super-resolution processing to generate higher resolution super-resolved images using a plurality of captured images and lens stack arrays that can be utilized in array cameras are disclosed. An imaging device in accordance with one embodiment of the invention includes at least one imager array, and each imager in the array comprises a plurality of light sensing elements and a lens stack including at least one lens surface, where the lens stack is configured to form an image on the light sensing elements, control circuitry configured to capture images formed on the light sensing elements of each of the imagers, and a super-resolution processing module configured to generate at least one higher resolution super-resolved image using a plurality of the captured images.

Abstract translation: 公开了一种用于实现阵列相机的系统和方法，其被配置为执行超分辨率处理以使用可用于阵列相机中的多个捕获图像和透镜组阵列来生成更高分辨率的超分辨率图像。 根据本发明的一个实施例的成像装置包括至少一个成像器阵列，并且阵列中的每个成像器包括多个光感测元件和包括至少一个透镜表面的透镜堆叠，其中透镜堆叠被配置成形成 感光元件上的图像，被配置为捕获形成在每个成像器的光感测元件上的图像的控制电路，以及超分辨率处理模块，其被配置为使用多个所述图像生成至少一个更高分辨率的超分辨率图像 捕获的图像。

公开(公告)号：US07477304B2

公开(公告)日：2009-01-13

申请号：US10926345

申请日：2004-08-26

Applicant: Shane Ching-Feng Hu

Inventor： Shane Ching-Feng Hu

IPC: H04N5/335

CPC classification number: H04N9/07 ,  H04N9/045

Abstract: A color filter to increase the low light sensitivity of an image sensor. The color filter has two narrow band color filters and one wide band filter. Also disclosed is a unique way of processing a tri-stimulus signal to dynamically adjust color contrast depending on the illumination conditions.

Abstract translation: 一种滤色片，用于增加图像传感器的低光灵敏度。 滤色镜有两个窄带滤色片和一个宽带滤镜。 还公开了处理三刺激信号以根据照明条件动态地调整颜色对比度的独特方式。