公开(公告)号：US07289163B2

公开(公告)日：2007-10-30

申请号：US10449189

申请日：2003-04-28

Applicant: Peng Lin ,  Yeong-Taeg Kim

Inventor： Peng Lin ,  Yeong-Taeg Kim

IPC: H04N5/21

CPC classification number: H04N9/646 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N19/117 ,  H04N19/182 ,  H04N19/186 ,  H04N19/80

Abstract: An improved method for color transient enhancement in an input video frame of pixels. The luminance value of a current pixel is compared to that of neighboring pixels. A correction value is determined and the chrominance value of the current pixel is “pushed” towards the neighboring pixel that has a luminance value closest to that of the current pixel, by adding the correction value to the current pixel's chrominance value. The original video frame is also separately processed using a CTI method, and the current pixel's corrected chrominance value is combined with the corresponding pixel in the output of the CTI processing by soft switching unit to generate an output video frame that is an enhanced version of the input video frame.

Abstract translation: 一种用于像素的输入视频帧中的色彩瞬态增强的改进方法。 将当前像素的亮度值与相邻像素的亮度值进行比较。 通过将校正值与当前像素的色度值相加，确定当前像素的色度值朝向具有最接近当前像素的亮度值的相邻像素的“推”。 原始视频帧也使用CTI方法单独处理，并且当前像素的校正色度值与软切换单元在CTI处理的输出中的相应像素组合以产生作为增强版本的输出视频帧 输入视频帧。

公开(公告)号：US07271851B2

公开(公告)日：2007-09-18

申请号：US10345552

申请日：2003-01-16

Applicant: Peng Lin ,  Yeong-Taeg Kim

Inventor： Peng Lin ,  Yeong-Taeg Kim

IPC: H04N5/00 ,  H04N5/21 ,  H04N9/68 ,  G06K9/40

CPC classification number: H04N9/646

Abstract: A superior Color Transient Improvement technique is adaptive to the local image features, so that more natural color edge transition improvement can be accomplished. A gain control function is provided that depends on the local image feature so that different regions of the image can be treated differently. Further, a correction signal is controlled in such a way (by the local image feature) that neither undershoot nor overshoot occurs, eliminating the need for post-processing for undershoot/overshoot removal.

Abstract translation: 优异的色彩瞬态改进技术适用于局部图像特征，从而可以实现更自然的色彩边缘转换改进。 提供了取决于本地图像特征的增益控制功能，使得图像的不同区域可以被不同地对待。 此外，校正信号以这样的方式（通过局部图像特征）被控制，既不会发生下冲也不产生超调，因此不需要后处理用于下冲/过冲去除。

公开(公告)号：US20060221249A1

公开(公告)日：2006-10-05

申请号：US11094942

申请日：2005-03-30

Applicant: Peng Lin ,  Yeong-Taeg Kim

Inventor： Peng Lin ,  Yeong-Taeg Kim

IPC: G06K9/40 ,  H04N5/00

CPC classification number: G06K9/40 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20012 ,  G06T2207/20192

Abstract: A noise reduction system that not only preserves details in images but also provides essentially clean, smooth, and natural looking homogeneous regions in images. The noise reduction system utilizes a dual-channel adaptive noise reduction technique. The input signal is first split into two channels (i.e., a low-pass channel and a high-pass channel), by a channel splitting filter. Then the two channel signals are processed separately. The low-pass channel signal is processed using an adaptive directional filter based on the estimation of the local 2D and 1D statistics and the detection of the local image structure direction. The high-pass channel signal is processed by a non-linear filtering method based on the estimation of the local statistics and the noise level of the high-pass channel signal, which is derived from the noise level of the original input signal. The processed signals from the two channels are summed together to get the final output.

公开(公告)号：US08810663B2

公开(公告)日：2014-08-19

申请号：US13112964

申请日：2011-05-20

Applicant: Peng Lin ,  Lingtao Jiang ,  Scott Smith

Inventor： Peng Lin ,  Lingtao Jiang ,  Scott Smith

IPC: H04N5/228 ,  H04N5/235 ,  G06K9/40

CPC classification number: H04N5/2355

Abstract: Electronic devices may include image sensors and processing circuitry. Image sensors may be used to capture multiple exposure images. Processing circuitry may be used to combine multiple exposure images into high-dynamic-range images. A motion correction method is provided that detects motion between multiple exposure images without using a frame buffer. A noise model is used to separate noise from motion for more accurate motion detection. A dilation operator may be used to enlarge a motion mask generated by the motion detector. Motion-corrected images may be generated from the multiple exposure images using a soft switch based on the motion strength. Motion-corrected multiple exposure images may be combined to generate a motion-corrected HDR image. A smoothing filter may be applied to the motion region of the motion-corrected HDR image. A blooming correction may be used to eliminate color artifacts in the motion-corrected HDR image.

Abstract translation: 电子设备可以包括图像传感器和处理电路。 图像传感器可用于捕获多个曝光图像。 处理电路可以用于将多个曝光图像组合成高动态范围图像。 提供一种运动校正方法，其检测多个曝光图像之间的运动，而不使用帧缓冲器。 噪声模型用于将噪声与运动分离以进行更精确的运动检测。 扩张操作者可以用于放大由运动检测器产生的运动掩模。 可以使用基于运动强度的软开关从多个曝光图像生成运动校正图像。 运动校正的多个曝光图像可以被组合以产生运动校正的HDR图像。 可以将平滑滤波器应用于运动校正的HDR图像的运动区域。 可以使用开花校正来消除运动校正的HDR图像中的色彩伪影。

公开(公告)号：US08717467B2

公开(公告)日：2014-05-06

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: H04N9/09

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：US08581995B2

公开(公告)日：2013-11-12

申请号：US13110252

申请日：2011-05-18

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

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

IPC: H04N5/225

CPC classification number: H04N5/23232 ,  G06T5/006 ,  G06T7/55 ,  G06T2207/10024 ,  H04N5/2258 ,  H04N5/2628 ,  H04N5/3415

Abstract: Electronic devices may include camera modules. A camera module may include an array camera having an array of lenses and an array of corresponding image sensors. Parallax correction and depth mapping methods may be provided for array cameras. A parallax correction method may include a global and a local parallax correction. A global parallax correction may be determined based on one-dimensional horizontal and vertical projections of edge images. Local parallax corrections may be determined using a block matching procedure. Further improvements to local parallax corrections may be generated using a relative block color saturation test, a smoothing of parallax correction vectors and, if desired, using a cross-check between parallax correction vectors determined for multiple image sensors. Three dimensional depth maps may be generated based on parallax correction vectors.

Abstract translation: 电子设备可以包括相机模块。 相机模块可以包括具有透镜阵列和相应图像传感器阵列的阵列相机。 可以为阵列相机提供视差校正和深度映射方法。 视差校正方法可以包括全局和局部视差校正。 可以基于边缘图像的一维水平和垂直投影来确定全局视差校正。 可以使用块匹配过程来确定局部视差校正。 可以使用相对块颜色饱和度测试，视差校正向量的平滑以及如果需要使用为多个图像传感器确定的视差校正矢量之间的交叉检查来产生对局部视差校正的进一步改进。 可以基于视差校正矢量生成三维深度图。

公开(公告)号：USD671787S1

公开(公告)日：2012-12-04

申请号：US29400054

申请日：2011-08-23

Applicant: Peng Lin

Designer： Peng Lin

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：US07865035B2

公开(公告)日：2011-01-04

申请号：US11246634

申请日：2005-10-06

Applicant: Peng Lin ,  Yeong-Taeg Kim

Inventor： Peng Lin ,  Yeong-Taeg Kim

IPC: G06K9/40 ,  G06K9/00 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/154 ,  H04N19/159 ,  H04N19/172 ,  H04N19/61

Abstract: A video quality adaptive coding artifact reduction system has a video quality analyzer, an artifact reducer, and a filter strength controller. The video quality analyzer employs input video quality analysis to control artifact reduction. The video quality analyzer accesses the video quality of the decoded video sequence to estimate the input video quality. The filter strength controller globally controls the filter strength of the artifact reducer based on the video quality estimate by the video quality analyzer. For low quality input video, the filter strength controller increases the artifact reduction filter strength to more efficiently reduce the artifact. For high quality input video, the filter strength controller decreases the artifact reduction filter strength to avoid blurring image detail.

Abstract translation: 视频质量自适应编码神器减少系统具有视频质量分析器，伪像减速器和滤波强度控制器。 视频质量分析仪采用输入视频质量分析来控制神器减少。 视频质量分析器访问解码视频序列的视频质量，以估计输入视频质量。 过滤强度控制器根据视频质量分析仪的视频质量估计，全局控制人造物减少器的过滤器强度。 对于低质量的输入视频，滤波器强度控制器增加了伪像降低滤波器的强度，以更有效地减少伪像。 对于高质量的输入视频，滤光片​​强度控制器可以减少伪影降低滤光片的强度，以避免图像细节模糊。

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。