Digital camera and method
    11.
    发明授权
    Digital camera and method 有权
    数码相机和方法

    公开(公告)号:US07809188B1

    公开(公告)日:2010-10-05

    申请号:US11741753

    申请日:2007-04-29

    申请人: Jianping Zhou

    发明人: Jianping Zhou

    IPC分类号: G06K9/00 G06K9/40

    摘要: Digital camera contrast enhancement with piecewise-linear transform with lower and upper cutoffs for the transform determined from histogram analysis with a green color conversion approximation for images and IIR parameter filtering for videos.

    摘要翻译: 数字相机对比度增强与分段线性变换,具有用于图像的灰度转换近似和视频的IIR参数滤波的直方图分析确定的变换的下限和上限截止值。

    Error resilient scalable audio coding

    公开(公告)号:US20050240403A1

    公开(公告)日:2005-10-27

    申请号:US11171887

    申请日:2005-06-30

    IPC分类号: G10L19/14 G10L21/00

    CPC分类号: G10L19/24

    摘要: A scalable audio codec processes, quantizes and encodes audio signals into an embedded audio bitstream of bit-planes each having a data unit. The data unit has a beginning refinement bits partition, a second significance bits partition, a third sign boundary mark bits partition, and a fourth sign bits partition. The second and fourth partitions form a boundary for the third partition. The quantizing uses a variable length coding algorithm. The third partition is an invalid codeword for a predetermined encoding method being used to encode. The codec uses a decoder to decode the embedded audio bitstream of bit-planes using Reversible exponential Golomb (Exp-Golomb) codes in a Reversible Variable Length Code (RVLC) algorithm to produce quantized data of weighted subbands. An inverse quantizer dequantizes the quantized data into audio signals.

    Football training rebound-wall
    14.
    外观设计

    公开(公告)号:USD1008393S1

    公开(公告)日:2023-12-19

    申请号:US29782982

    申请日:2021-05-11

    摘要: FIG. 1 is a perspective view of a football training rebound-wall showing our new design;
    FIG. 2 is a front elevation view thereof;
    FIG. 3 is a rear elevation view thereof;
    FIG. 4 is a left side elevation view thereof;
    FIG. 5 is a right side elevation view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.

    Focus position estimation
    15.
    发明授权
    Focus position estimation 有权
    焦点位置估计

    公开(公告)号:US08803987B2

    公开(公告)日:2014-08-12

    申请号:US13327335

    申请日:2011-12-15

    申请人: Jianping Zhou

    发明人: Jianping Zhou

    IPC分类号: H04N5/228

    摘要: A method, apparatus and computer-readable storage medium computer-implemented method for lens position estimation. A drive current value may be received from a lens driver. An orientation of an electronic device may be detected using a motion sensor. A gravity vector may be determined by a processor based upon the orientation. A drive current offset may be determined based upon the gravity vector. The drive current value may be combined with the calculated drive current offset to create a normalized drive current. A lens position value associated with a camera lens of the electronic device may be computed based upon the normalized drive current.

    摘要翻译: 一种用于透镜位置估计的方法,装置和计算机可读存储介质计算机实现的方法。 可以从透镜驱动器接收驱动电流值。 可以使用运动传感器来检测电子设备的方位。 重力矢量可以由处理器基于取向来确定。 可以基于重力矢量来确定驱动电流偏移。 驱动电流值可以与计算出的驱动电流偏置组合以产生归一化的驱动电流。 可以基于归一化的驱动电流来计算与电子设备的相机镜头相关联的镜头位置值。

    HARDWARE-CONSTRAINED TRANSFORMS FOR VIDEO STABILIZATION PROCESSES
    16.
    发明申请
    HARDWARE-CONSTRAINED TRANSFORMS FOR VIDEO STABILIZATION PROCESSES 有权
    用于视频稳定过程的硬件约束变换

    公开(公告)号:US20130329066A1

    公开(公告)日:2013-12-12

    申请号:US13586031

    申请日:2012-08-15

    IPC分类号: G09G5/36 H04N5/225

    CPC分类号: H04N5/23248

    摘要: The video stabilization method can generate output data for an output frame from input data of an input frame according to a perspective transform of a transform matrix. The input data used for the perspective transform can be obtained from a buffer of a predetermined depth. The transform matrix can be altered when the input data required for the transform exceeds the depth of the buffer.

    摘要翻译: 视频稳定方法可以根据变换矩阵的透视变换从输入帧的输入数据生成输出帧的输出数据。 用于透视变换的输入数据可以从预定深度的缓冲器获得。 当变换所需的输入数据超过缓冲区的深度时,可以改变变换矩阵。

    STATIONARY CAMERA DETECTION AND VIRTUAL TRIPOD TRANSITION FOR VIDEO STABILIZATION
    17.
    发明申请
    STATIONARY CAMERA DETECTION AND VIRTUAL TRIPOD TRANSITION FOR VIDEO STABILIZATION 有权
    静态摄像机检测和虚拟三维转换视频稳定

    公开(公告)号:US20130329062A1

    公开(公告)日:2013-12-12

    申请号:US13492769

    申请日:2012-06-08

    IPC分类号: H04N5/228

    CPC分类号: H04N5/23248

    摘要: An apparatus, method, and computer-readable medium for motion sensor-based video stabilization. A motion sensor may capture motion data of a video sequence. A controller may compute instantaneous motion of the camera for a current frame of the video sequence and accumulated motion of the camera corresponding to motion of a plurality of frames of the video sequence. The controller may compare the instantaneous motion to a first threshold value, compare the accumulated motion to a second threshold value, and set a video stabilization strength parameter for the current frame based on the results of the comparison. A video stabilization unit may perform video stabilization on the current frame according to the frame's strength parameter.

    摘要翻译: 一种用于基于运动传感器的视频稳定的装置,方法和计算机可读介质。 运动传感器可以捕获视频序列的运动数据。 控制器可以计算摄像机对视频序列的当前帧的瞬时运动以及对应于视频序列的多个帧的运动的照相机的累积运动。 控制器可以将瞬时运动与第一阈值进行比较,将累积运动与第二阈值进行比较,并且基于比较结果为当前帧设置视频稳定强度参数。 视频稳定单元可以根据帧的强度参数在当前帧上执行视频稳定。

    Brightness enhancement method, system and apparatus for low power architectures
    18.
    发明授权
    Brightness enhancement method, system and apparatus for low power architectures 有权
    亮度增强方法,低功耗体系结构的系统和装置

    公开(公告)号:US08538148B2

    公开(公告)日:2013-09-17

    申请号:US12890372

    申请日:2010-09-24

    申请人: Jianping Zhou

    发明人: Jianping Zhou

    IPC分类号: G06K9/00

    摘要: Embodiments are described for a brightness enhancement method, system and apparatus for low power architecture. A histogram of a contrast image may be generated. One or more parameters may be set based on the histogram. A tone mapping for the contrast image may be determined based on the one or more parameters. An output pixel may be determined based on the tone mapping.

    摘要翻译: 对于用于低功率架构的亮度增强方法,系统和装置描述了实施例。 可以生成对比度图像的直方图。 可以基于直方图来设置一个或多个参数。 可以基于一个或多个参数来确定对比度图像的色调映射。 可以基于色调映射来确定输出像素。

    Method and apparatus for determining image orientation
    19.
    发明授权
    Method and apparatus for determining image orientation 有权
    用于确定图像取向的方法和装置

    公开(公告)号:US08497878B2

    公开(公告)日:2013-07-30

    申请号:US12610801

    申请日:2009-11-02

    申请人: Jianping Zhou

    发明人: Jianping Zhou

    IPC分类号: G09G5/00

    摘要: A method and apparatus for automatically deciding on the orientation of image. The method includes computing average and standard deviation of luminance of the top region of a portion of the image, of the bottom region of a portion of the image, of the left region of a portion of the image, and of the right region of a portion of the image, computing average luminance of the image, computing, in the digital signal processor, consolidated luminance difference and uniformity of top and bottom regions, and left and right regions, utilizing the computed average and standard deviation of at least one of the bottom region, the left region or the right region and utilizing portrait orientation if difLR−difTB>t1 && stdTB−stdLR>t2 or if difLR−difTB>t3 && stdTB−stdLR>t4, otherwise, utilizing landscape orientation.

    摘要翻译: 一种用于自动决定图像方向的方法和装置。 该方法包括计算图像的一部分的底部区域,图像的一部分的左侧区域的底部区域和图像的一部分的右侧区域的顶部区域的亮度的平均和标准偏差 图像的部分,图像的计算平均亮度,数字信号处理器中的计算,顶部和底部区域以及左侧和右侧区域的整合亮度差和均匀性的计算,利用计算的平均和标准偏差 底部区域,左侧区域或右侧区域,如果difLR-difTB> t1 && stdTB-stdLR> t2或者如果difLR-difTB> t3 && stdTB-stdLR> t4,则使用纵向方向,否则使用横向。

    BROADLY TUNABLE OPTICAL PARAMETRIC OSCILLATOR
    20.
    发明申请
    BROADLY TUNABLE OPTICAL PARAMETRIC OSCILLATOR 有权
    广泛应用光学参数振荡器

    公开(公告)号:US20110180729A1

    公开(公告)日:2011-07-28

    申请号:US13011780

    申请日:2011-01-21

    IPC分类号: G01N21/00

    摘要: A novel broadly tunable optical parametric oscillator is described for use in numerous applications including multi-photon microscopy. The optical parametric oscillator includes at least one sub-picosecond laser pump source configured to output a pump signal having a wavelength of about 650 nm or less and at least one type II optical parametric oscillator in optical communication with the pump source and configured to generate a single widely tunable pulsed optical signal. In one application, an optical system is in optical communication with the optical parametric oscillator and configured to direct at least a portion of the optical signal to a specimen, and at least one analyzing device is configured to receive a signal from the specimen in response to the optical signal.

    摘要翻译: 描述了一种新颖的广泛可调光参量振荡器用于包括多光子显微镜在内的许多应用中。 所述光学参量振荡器包括至少一个亚皮秒激光泵浦源,其被配置为输出波长为约650nm或更小的泵浦信号,以及至少一个类型II光参量振荡器与所述泵浦源光学通信并被配置为产生 单个广泛可调脉冲光信号。 在一个应用中,光学系统与光学参量振荡器光学通信,并被配置为将光信号的至少一部分引导到样本,并且至少一个分析装置被配置为响应于 光信号。