High-quality gradient-corrected linear interpolation for demosaicing of color images
    3.
    发明授权
    High-quality gradient-corrected linear interpolation for demosaicing of color images 有权
    高质量梯度校正线性插值,用于彩色图像的去马赛克

    公开(公告)号:US07502505B2

    公开(公告)日:2009-03-10

    申请号:US10801450

    申请日:2004-03-15

    IPC分类号: G06K9/00 G06K9/32

    CPC分类号: G06T3/4015

    摘要: A gradient-corrected linear interpolation method and system for the demosaicing of color images. The method and system compute an interpolation using some a current technique (preferably a bilinear interpolation technique to reduce computational complexity), compute a correction term (such as a gradient of a desired color at a given pixel), and linearly combine the interpolation and the correction term to produce a corrected, high-quality interpolation of a missing color value at a pixel. The correction term may be a gradient correction term computed from the current color of the current pixel. This gradient is directly used to affect and correct the estimated color value produced by the prior art interpolation technique. The gradient-corrected linear interpolation method and system may also apply a gradient-correction gain to the gradient correction term. This gradient-correction gain affects the amount of gradient correction that is applied to the interpolation.

    摘要翻译: 用于彩色图像去马赛克的渐变校正线性插值方法和系统。 该方法和系统使用一些当前技术(优选双线性插值技术来减少计算复杂度)来计算插值,计算校正项(例如给定像素处的期望颜色的梯度),并且将内插和 校正项,以产生在像素处缺失颜色值的校正的高质量插值。 校正项可以是从当前像素的当前颜色计算的梯度校正项。 该梯度直接用于影响和校正由现有技术插值技术产生的估计颜色值。 梯度校正线性插值方法和系统还可以对梯度校正项应用梯度校正增益。 该梯度校正增益影响应用于插值的梯度校正量。

    System and method for audio/video speaker detection
    4.
    发明授权
    System and method for audio/video speaker detection 有权
    用于音频/视频扬声器检测的系统和方法

    公开(公告)号:US07343289B2

    公开(公告)日:2008-03-11

    申请号:US10606061

    申请日:2003-06-25

    IPC分类号: G10L13/00

    CPC分类号: G10L15/25 G10L25/30 G10L25/78

    摘要: A system and method for detecting speech utilizing audio and video inputs. In one aspect, the invention collects audio data generated from a microphone device. In another aspect, the invention collects video data and processes the data to determine a mouth location for a given speaker. The audio and video are inputted into a time-delay neural network that processes the data to determine which target is speaking. The neural network processing is based upon a correlation to detected mouth movement from the video data and audio sounds detected by the microphone.

    摘要翻译: 一种利用音频和视频输入来检测语音的系统和方法。 一方面,本发明收集从麦克风装置产生的音频数据。 在另一方面,本发明收集视频数据并处理数据以确定给定说话者的嘴部位置。 音频和视频被输入到时间延迟神经网络中,处理数据以确定哪个目标在说话。 神经网络处理基于与从视频数据检测到的嘴部移动和由麦克风检测到的音频声音的相关性。

    System and method for camera calibration and images stitching
    5.
    发明申请
    System and method for camera calibration and images stitching 有权
    相机校准和图像拼接的系统和方法

    公开(公告)号:US20060268131A1

    公开(公告)日:2006-11-30

    申请号:US11430344

    申请日:2006-05-09

    申请人: Ross Cutler

    发明人: Ross Cutler

    IPC分类号: H04N5/262

    摘要: A practical, real-time calibration of digital omnidirectional cameras in the areas of de-vignetting, brightness, contrast, and white balance control. Novel solutions for the color calibration of an omnidirectional camera rig, and an efficient method for devignetting images are presented. Additionally, a context-specific method of stitching images together into a panorama or a mosaic is provided.

    摘要翻译: 数字全向摄像机在去晕影,亮度,对比度和白平衡控制领域的实用,实时校准。 提出了一种用于全向摄像机的颜色校准的新颖解决方案,以及一种有效的去角度偏移图像的方法。 另外,提供将图像拼接成全景图或马赛克的上下文特定方法。

    Maintenance of panoramic camera orientation

    公开(公告)号:US20060023075A1

    公开(公告)日:2006-02-02

    申请号:US11027163

    申请日:2004-12-31

    申请人: Ross Cutler

    发明人: Ross Cutler

    IPC分类号: H04N5/225

    摘要: Systems and methods for maintaining orientation of a non-cylindrical panorama is described wherein an initial magnetometer reading is obtained for a panoramic camera. If the panoramic camera is rotated from an initial position, a new magnetometer reading is obtained and a magnitude of rotation is determined. The magnitude of rotation is factored into an image stitching and warping process to create a panoramic image that maintains the initial orientation.

    Automated online broadcasting system and method using an omni-directional camera system for viewing meetings over a computer network

    公开(公告)号:US20050285933A1

    公开(公告)日:2005-12-29

    申请号:US11193702

    申请日:2005-07-29

    IPC分类号: H04N7/14 H04N7/15

    CPC分类号: H04N7/142 H04N7/147 H04N7/15

    摘要: An automated system and method for broadcasting meetings over a computer network. The meeting is filmed using an omni-directional camera system and capable of being presented to a viewer both live and on-demand. The system of the present invention includes an automated camera management system for controlling the camera system and an analysis module determining the location of meeting participants in the meeting environments. The method of the present invention includes using the system of the present invention to broadcast an event to a viewer over a computer network. In particular, the method includes filming the event using an omni-directional camera system. Next, the method determines the location of each event participant in the event environment. Finally, a viewer is provided with a user interface for viewing the broadcast event. This user interface allows a viewer to choose which event participant that the viewer would like to view.

    System and process for adding high frame-rate current speaker data to a low frame-rate video using delta frames
    8.
    发明申请
    System and process for adding high frame-rate current speaker data to a low frame-rate video using delta frames 有权
    使用增量帧将高帧率当前扬声器数据添加到低帧率视频的系统和过程

    公开(公告)号:US20050243167A1

    公开(公告)日:2005-11-03

    申请号:US10837244

    申请日:2004-04-30

    IPC分类号: H04N7/14

    CPC分类号: H04N7/147 H04N7/148

    摘要: A system and process for highlighting the current speaker on an on-going basis in each frame of a low frame-rate video of an event having multiple people in attendance is presented. In general, this is accomplished by periodically identifying an attendee that is currently speaking at a rate substantially faster than the video frame rate, and updating each frame of the video to highlight the current speaker. More particularly, an A/V source provides a video stream to a client computing device that includes delta frames interspersed between the frames of the low frame-rate video. The full video frames act as keyframes, and the delta frames provide the changes needed to modify the last displayed version of the last keyframe to highlight just the region associated with the location of a current speaker. This allows the client device to operate as a standard A/V rendering and display unit.

    摘要翻译: 提出了一种系统和过程,用于在具有多个出席者的事件的低帧率视频的每帧中持续突出显示当前扬声器。 一般来说,这通过周期性地识别当前以比视频帧速率更快的速率来表示的参加者,并且更新视频的每个帧以突出显示当前的说话者来实现。 更具体地,A / V源向客户端计算设备提供视频流,该客户端计算设备包括分散在低帧率视频帧之间的增量帧。 完整的视频帧作为关键帧,增量帧提供修改最后一个关键帧的最后显示版本所需的更改,以突出显示与当前扬声器位置相关联的区域。 这允许客户端设备作为标准的A / V渲染和显示单元运行。

    High-quality gradient-corrected linear interpolation for demosaicing of color images
    9.
    发明申请
    High-quality gradient-corrected linear interpolation for demosaicing of color images 有权
    高质量梯度校正线性插值,用于彩色图像的去马赛克

    公开(公告)号:US20050201616A1

    公开(公告)日:2005-09-15

    申请号:US10801450

    申请日:2004-03-15

    CPC分类号: G06T3/4015

    摘要: A gradient-corrected linear interpolation method and system for the demosaicing of color images. The method and system compute an interpolation using some a current technique (preferably a bilinear interpolation technique to reduce computational complexity), compute a correction term (such as a gradient of a desired color at a given pixel), and linearly combine the interpolation and the correction term to produce a corrected, high-quality interpolation of a missing color value at a pixel. The correction term may be a gradient correction term computed from the current color of the current pixel. This gradient is directly used to affect and correct the estimated color value produced by the prior art interpolation technique. The gradient-corrected linear interpolation method and system may also apply a gradient-correction gain to the gradient correction term. This gradient-correction gain affects the amount of gradient correction that is applied to the interpolation.

    摘要翻译: 用于彩色图像去马赛克的渐变校正线性插值方法和系统。 该方法和系统使用一些当前技术(优选双线性插值技术来减少计算复杂度)来计算插值,计算校正项(例如给定像素处的期望颜色的梯度),并且将内插和 校正项,以产生在像素处缺失颜色值的校正的高质量插值。 校正项可以是从当前像素的当前颜色计算的梯度校正项。 该梯度直接用于影响和校正由现有技术插值技术产生的估计颜色值。 梯度校正线性插值方法和系统还可以对梯度校正项应用梯度校正增益。 该梯度校正增益影响应用于插值的梯度校正量。