会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Auto exposure techniques for variable lighting conditions
    • 用于可变照明条件的自动曝光技术
    • US08325890B2
    • 2012-12-04
    • US12849099
    • 2010-08-03
    • Douglas S. PriceXiaosong ZhouHsi-Jung Wu
    • Douglas S. PriceXiaosong ZhouHsi-Jung Wu
    • H04M11/00
    • H04N5/235H04N5/2351H04N5/243H04N2007/145
    • Systems, methods, and a computer readable medium for performing auto exposure (AE) techniques that are beneficial in variable lighting conditions—and particularly applicable to handheld and/or mobile videoconferencing applications—are disclosed herein. Handheld and/or mobile videoconferencing applications—unlike their fixed camera counterparts—are often exposed to a wide variety of rapidly changing lighting and scene conditions, and thus face a difficult trade-off between adjusting exposure parameter values too frequently or not frequently enough. In personal electronic devices executing such handheld and/or mobile videoconferencing applications, it may be desirable to: use a small, centered, and center-weighted exposure metering region; set a relatively low brightness target value; and adjust the camera's exposure parameter values according to a distance-dependent convergence speed function. The use of such techniques, in conjunction with a relatively large stability region, may also improve the quality of a video encoder's temporal predictions—and thus video quality—in videoconferencing applications.
    • 本文公开了用于执行可变照明条件有利的自动曝光(AE)技术的系统,方法和计算机可读介质,并且特别适用于手持和/或移动视频会议应用。 手持和/或移动视频会议应用程序(与固定摄像机对应的设备不同)通常会受到各种快速变化的照明和场景条件的影响,因此在过多调整曝光参数值或不够频繁地面临困难的折衷。 在执行这种手持和/或移动视频会议应用的个人电子设备中,可能需要:使用小的,中心的和中心加权的曝光计量区域; 设定相对较低的亮度目标值; 并根据距离相关的收敛速度功能调整相机的曝光参数值。 使用这样的技术结合相对较大的稳定性区域,也可以提高视频编码器在视频会议应用中的时间预测的质量,从而提高视频质量。
    • 4. 发明申请
    • Auto Exposure Techniques for Variable Lighting Conditions
    • 可变照明条件的自动曝光技术
    • US20110298886A1
    • 2011-12-08
    • US12849099
    • 2010-08-03
    • Douglas S. PriceXiaosong ZhouHsi-Jung Wu
    • Douglas S. PriceXiaosong ZhouHsi-Jung Wu
    • H04N5/238H04N7/15
    • H04N5/235H04N5/2351H04N5/243H04N2007/145
    • Systems, methods, and a computer readable medium for performing auto exposure (AE) techniques that are beneficial in variable lighting conditions—and particularly applicable to handheld and/or mobile videoconferencing applications—are disclosed herein. Handheld and/or mobile videoconferencing applications—unlike their fixed camera counterparts—are often exposed to a wide variety of rapidly changing lighting and scene conditions, and thus face a difficult trade-off between adjusting exposure parameter values too frequently or not frequently enough. In personal electronic devices executing such handheld and/or mobile videoconferencing applications, it may be desirable to: use a small, centered, and center-weighted exposure metering region; set a relatively low brightness target value; and adjust the camera's exposure parameter values according to a distance-dependent convergence speed function. The use of such techniques, in conjunction with a relatively large stability region, may also improve the quality of a video encoder's temporal predictions—and thus video quality—in videoconferencing applications.
    • 本文公开了用于执行可变照明条件有利的自动曝光(AE)技术的系统,方法和计算机可读介质,并且特别适用于手持和/或移动视频会议应用。 手持和/或移动视频会议应用程序(与固定摄像机对应的设备不同)通常会受到各种快速变化的照明和场景条件的影响,因此在过多调整曝光参数值或不够频繁地面临困难的折衷。 在执行这种手持和/或移动视频会议应用的个人电子设备中,可能需要:使用小的,中心的和中心加权的曝光计量区域; 设定相对较低的亮度目标值; 并根据距离相关的收敛速度功能调整相机的曝光参数值。 使用这样的技术结合相对较大的稳定性区域,也可以提高视频编码器在视频会议应用中的时间预测的质量,从而提高视频质量。