公开(公告)号：US20120188420A1

公开(公告)日：2012-07-26

申请号：US13149818

申请日：2011-05-31

Applicant: Robert A. Black ,  Scott Smith ,  Peng Lin

Inventor： Robert A. Black ,  Scott Smith ,  Peng Lin

IPC: H04N9/04

CPC classification number: H04N5/2258 ,  H04N5/2253 ,  H04N9/09 ,  H04N13/239 ,  H04N13/243

Abstract: Electronic devices may include camera modules. A camera module may be formed from an array of lenses and corresponding image sensors. The array of image sensors may include three color image sensors for color imaging and a fourth image sensor positioned to improve image depth mapping. Providing a camera module with a fourth image sensor may increase the baseline distance between the two most distant image sensors, allowing parallax and depth information to be determined for objects a greater distance from the camera than in a conventional electronic device. The fourth image sensor may be a second green image sensor positioned at a maximal distance from the green color image sensor used for color imaging. The fourth image sensor may also be a clear image sensor, allowing capture of improved image depth information and enhanced image resolution and low-light performance.

Abstract translation: 电子设备可以包括相机模块。 相机模块可以由透镜阵列和对应的图像传感器形成。 图像传感器阵列可以包括用于彩色成像的三个彩色图像传感器和定位成改善图像深度映射的第四图像传感器。 提供具有第四图像传感器的相机模块可以增加两个最远的图像传感器之间的基线距离，从而相对于常规的电子设备，可以确定距离照相机更远的物体的视差和深度信息。 第四图像传感器可以是位于与用于彩色成像的绿色图像传感器最大距离的第二绿色图像传感器。 第四图像传感器也可以是清晰的图像传感器，允许捕获改进的图像深度信息和增强的图像分辨率和低光性能。

公开(公告)号：US20090042551A1

公开(公告)日：2009-02-12

申请号：US12188965

申请日：2008-08-08

Applicant: Shih-Kuang TSAI ,  Liang Huang ,  Peng Lin

Inventor： Shih-Kuang TSAI ,  Liang Huang ,  Peng Lin

IPC: H04M3/00

CPC classification number: H04M1/72555 ,  H04L65/607 ,  H04L65/80 ,  H04N7/147

Abstract: A multimedia data coding method for cell phones is provided, wherein the multimedia data coding method comprises steps as follows: First multimedia data is captured by a first cell phone, and then a coding parameter is determined by selecting a coding mode. Subsequently the multimedia data is coded according to the coding mode and the coding parameter to output a signal. The signal is then transmitted to a second cell phone.

Abstract translation: 提供了一种用于手机的多媒体数据编码方法，其中多媒体数据编码方法包括以下步骤：第一多媒体数据由第一手机捕获，然后通过选择编码模式来确定编码参数。 随后，根据编码模式和编码参数对多媒体数据进行编码以输出信号。 然后将该信号发送到第二手机。

公开(公告)号：US20070217707A1

公开(公告)日：2007-09-20

申请号：US11376208

申请日：2006-03-16

Applicant: Peng Lin ,  Chan Chou

Inventor： Peng Lin ,  Chan Chou

IPC: G06K9/40

CPC classification number: H04N5/23293 ,  G06T7/41 ,  G06T2207/20021 ,  H04N5/23212 ,  H04N5/23222

Abstract: The present invention discloses a test method for image sharpness, which can instantly determine the sharpness of a captured image, wherein a captured image is firstly divided into multiple blocks with each block composed of multiple pixels; in each block of the captured image, the pixels having higher sharpnesses are selected, and the sharpnesses of those pixels are summed up to be the sharpness of the related block; the estimated sharpness of the captured image is also obtained similarly; and the estimated sharpness is compared with a threshold value to determine whether the captured image is sharp enough. Thereby, the present invention can test the sharpness of an image fast and correctly and inform the user of the status of the captured image and provide the user with corresponding suggestions.

Abstract translation: 本发明公开了一种图像清晰度的测试方法，可以立即确定拍摄图像的清晰度，其中首先将拍摄图像划分为多个块，每个块由多个像素组成; 在拍摄图像的每个块中，选择具有较高锐度的像素，并且将这些像素的锐度归纳为相关块的清晰度; 同样获得了拍摄图像的估计清晰度; 并将估计的锐度与阈值进行比较，以确定捕获的图像是否足够锐利。 因此，本发明可以快速，准确地测试图像的清晰度，并向用户通知拍摄图像的状态，并向用户提供相应的建议。

公开(公告)号：US08346008B2

公开(公告)日：2013-01-01

申请号：US12480970

申请日：2009-06-09

Applicant: Peng Lin

Inventor： Peng Lin

IPC: G06K9/40 ,  H04N5/217

CPC classification number: H04N5/35536 ,  H04N5/35509 ,  H04N5/357

Abstract: This is generally directed to systems and methods for noise reduction in high dynamic range (“HDR”) imaging systems. In some embodiments, multiple images of the same scene can be captured, where each of the images is exposed for a different amount of time. An HDR image may be created by suitably combining the images. However, the signal-to-noise ratio (“SNR”) curve of the resulting HDR image can have discontinuities in sections of the SNR curve corresponding to shifts between different exposure times. Accordingly, in some embodiments, a noise model for the HDR image can be created that takes into account these discontinuities in the SNR curve. For example, a noise model can be created that smoothes the discontinuities of the SNR curve into a continuous function. This noise model may then be used with a Bayer Filter or any other suitable noise filter to remove noise from the HDR image.

Abstract translation: 这通常涉及用于高动态范围（HDR）成像系统中降噪的系统和方法。 在一些实施例中，可以捕获相同场景的多个图像，其中每个图像被曝光不同的时间量。 可以通过适当地组合图像来创建HDR图像。 然而，所得HDR图像的信噪比（SNR）曲线可以在对应于不同曝光时间之间的移动的SNR曲线的部分中具有不连续性。 因此，在一些实施例中，可以创建考虑SNR曲线中的这些不连续性的用于HDR图像的噪声模型。 例如，可以创建将SNR曲线的不连续性平滑成连续函数的噪声模型。 然后可以将该噪声模型与拜耳滤波器或任何其它合适的噪声滤波器一起使用以从HDR图像中去除噪声。

公开(公告)号：US20100201850A1

公开(公告)日：2010-08-12

申请号：US12366865

申请日：2009-02-06

Applicant: Peng Lin

Inventor： Peng Lin

IPC: H04N9/64 ,  H04N5/335

CPC classification number: H04N5/357 ,  G06T3/4015 ,  H04N5/367 ,  H04N9/045 ,  H04N2209/046

Abstract: Embodiments describe noise reduction methods and systems for imaging devices having a pixel array having a plurality of pixels, each pixel representing one of a plurality of captured colors and having an associated captured color pixel value. Noise reduction methods filter a captured color pixel value for a respective pixel based on the captured color pixel values associated with pixels in a window of pixels surrounding the respective pixel. Disclosed embodiments provide a low cost noise reduction filtering process that takes advantage of the correlations among the red, green and blue color channels to efficiently remove noise while retaining image sharpness. A noise model can be used to derive a parameter of the noise reduction methods.

Abstract translation: 实施例描述了用于成像装置的噪声降低方法和系统，其具有具有多个像素的像素阵列，每个像素表示多个捕获的颜色之一并具有相关联的捕获的彩色像素值。 降噪方法基于与围绕相应像素的像素的窗口中的像素相关联的捕获的彩色像素值，来过滤针对相应像素的捕获的彩色像素值。 公开的实施例提供了低成本噪声降低滤波处理，其利用红色，绿色和蓝色色彩通道之间的相关性来有效地消除噪声，同时保持图像清晰度。 可以使用噪声模型来导出降噪方法的参数。

公开(公告)号：US20100013919A1

公开(公告)日：2010-01-21

申请号：US12173327

申请日：2008-07-15

Applicant: Peng Lin ,  Todd Sachs

Inventor： Peng Lin ,  Todd Sachs

IPC: H04N7/18

CPC classification number: H04N5/144 ,  G06T7/254 ,  G06T2200/28 ,  G06T2207/10016 ,  G06T2207/20068 ,  G06T2207/30232 ,  H04N5/23248

Abstract: A non-frame-based motion detection method and apparatus for imagers requires only a few line buffers and little computation. The non-frame-based, low cost motion detection method and apparatus are well suited for “system-a-chip” (SOC) imager implementations.

Abstract translation: 用于成像器的非基于帧的运动检测方法和装置仅需要几行线缓冲器和很少的计算。 基于非帧的低成本运动检测方法和装置非常适合于“系统芯片”（SOC）成像器实现。

公开(公告)号：US20090278945A1

公开(公告)日：2009-11-12

申请号：US12149723

申请日：2008-05-07

Applicant: Peng Lin

Inventor： Peng Lin

IPC: H04N5/228

CPC classification number: H04N5/23248 ,  H04N5/23267

Abstract: A method and apparatus for image stabilization while mitigating the amplification of image noise by using a motion adaptive system employing spatial and temporal filtering of pixel signals from multiple captured frames of a scene.

Abstract translation: 一种用于图像稳定的方法和装置，同时通过使用对来自场景的多个拍摄帧的像素信号进行空间和时间滤波的运动自适应系统来减轻图像噪声的放大。

公开(公告)号：US11019277B2

公开(公告)日：2021-05-25

申请号：US16543760

申请日：2019-08-19

Applicant: Liangtao Jiang ,  Peng Lin

Inventor： Liangtao Jiang ,  Peng Lin

IPC: H04N5/235

Abstract: A system for capturing a high dynamic range (HDR) image comprises an image sensor comprising a split pixel including a first pixel having higher effective gain and a second pixel having lower effective gain. The second pixels exposed with a capture window capture at least a pulse emitted by a light emitting diode (LED) controlled by a pulse width modulation. A first HDR image is produced by a combination including an image produced by the second pixels, and images produced by multiple exposures of the first pixels. A weight map of LED flicker correction is generated from the difference of the image produced by second pixels and the images produced by the first pixels, and the flicker areas in the first HDR image are corrected with the weight map and the image from the second pixels.

公开(公告)号：US08571100B2

公开(公告)日：2013-10-29

申请号：US11666061

申请日：2005-10-19

Applicant: Xiaoan Lu ,  Peng Lin ,  Jill MacDonald Boyce

Inventor： Xiaoan Lu ,  Peng Lin ,  Jill MacDonald Boyce

IPC: H04B1/66

CPC classification number: H04N19/19 ,  H04N19/109 ,  H04N19/11 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

Abstract: There are provided video encoders and corresponding methods for encoding video data for an image that is divisible into macroblocks. A video encoder includes an encoder for performing into mode selection when encoding a current macroblock by testing a first subset of intra modes to compute a rate distortion cost, and utilizing the rate distortion cost to determine whether to terminate the intra mode selection and which additional intra modes, if any, are to be examined with respect to the current macroblock.

Abstract translation: 提供了视频编码器和用于编码可分割为宏块的图像的视频数据的相应方法。 视频编码器包括编码器，用于通过测试帧内模式的第一子集来编码当前宏块进行模式选择，以计算速率失真成本，并利用速率失真成本来确定是否终止帧内模式选择以及哪些附加帧内 要对当前的宏块进行检查，如果有的话。

公开(公告)号：US08405750B2

公开(公告)日：2013-03-26

申请号：US12480651

申请日：2009-06-08

Applicant: Scott Smith ,  Peng Lin ,  Christopher Zeleznik ,  Laura Savidge

Inventor： Scott Smith ,  Peng Lin ,  Christopher Zeleznik ,  Laura Savidge

IPC: H04N5/335 ,  G03B7/00

CPC classification number: H04N9/045 ,  H04N5/235 ,  H04N5/2355 ,  H04N2209/046

Abstract: High dynamic range image sensors and image reconstruction methods for capturing high dynamic range images. An image sensor that captures high dynamic range images may include an array of pixels having two sets of pixels, each of which is used to capture an image of a scene. The two sets of pixels may be interleaved together. As an example, the first and second sets of pixels may be formed in odd-row pairs and even-row pairs of the array, respectively. The first set of pixels may use a longer exposure time than the second set of pixels. The exposures of the two sets of pixels may at least partially overlap in time. Image processing circuitry in the image sensors or an associated electronic device may de-interlace the two images and may combine the de-interlaced images to form a high dynamic range image.

Abstract translation: 高动态范围图像传感器和用于捕获高动态范围图像的图像重建方法。 捕获高动态范围图像的图像传感器可以包括具有两组像素的像素阵列，每组像素用于捕获场景的图像。 两组像素可以交错在一起。 作为示例，第一和第二组像素可以分别形成为阵列的奇数行和偶数行。 第一组像素可以使用比第二组像素更长的曝光时间。 两组像素的曝光可能在时间上至少部分重叠。 图像传感器或相关联的电子设备中的图像处理电路可以对两个图像进行去隔行扫描，并且可以组合去隔行图像以形成高动态范围图像。