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    • 4. 发明申请
    • METHOD AND APPARATUS FOR CAMERA MOTION ANALYSIS IN VIDEO
    • 视频中摄像机运动分析的方法与装置
    • US20120249812A1
    • 2012-10-04
    • US13355990
    • 2012-01-23
    • Fei LIRujie LiuHao YuTakayuki BabaYusuke Uehara
    • Fei LIRujie LiuHao YuTakayuki BabaYusuke Uehara
    • H04N5/228
    • G06T7/20G06K9/00758
    • Embodiments disclose methods and apparatuses for camera motion analysis in a video, wherein one of the methods includes: analyzing, video segments with significant movement characteristics and video segments without any significant movement characteristic; for each segment without any significant movement characteristic, if a first motion type corresponding to a preceding neighboring video segment is different from a second motion type corresponding to a succeeding neighboring video segment, lowering detection criterions of the first type and the second type; judging whether the segment without any significant movement characteristic meets the lowered detection criterions; and merging the segment without any significant movement characteristic with a neighboring video segment according to the result of judgment. With the embodiments of the invention the motion type of a camera in the video can be detected more effectively and accurately, and the photographic intention of a user can be reflected more accurately.
    • 实施例公开了一种视频中的相机运动分析的方法和装置,其中的方法之一包括:分析具有显着运动特征和视频片段的视频片段,而没有任何显着的运动特征; 对于每个段而没有任何显着的移动特性,如果对应于前一相邻视频段的第一运动类型与对应于后续相邻视频段的第二运动类型不同,则降低第一类型和第二类型的检测准则; 判断没有任何显着运动特性的段是否符合降低的检测标准; 并且根据判断结果与相邻视频段合并该片段而没有任何显着的移动特征。 利用本发明的实施例,可以更有效和准确地检测视频中的相机的运动类型,并且可以更准确地反映用户的拍摄意图。
    • 9. 发明授权
    • Electrode for electrochemical machining
    • 电化学加工用电极
    • US06627054B2
    • 2003-09-30
    • US09767626
    • 2001-01-23
    • Bin WeiR. Grant RoweBruce A. KnudsenHao Yu
    • Bin WeiR. Grant RoweBruce A. KnudsenHao Yu
    • C25B1100
    • B23H9/16B23H3/04
    • Non-circular holes are formed by electrochemical machining with an electrode that includes a hollow shank having a circular cross-section and a hollow tip section having a non-circular cross-section disposed on one end of the shank. The tip section is very small in length relative to the shank such that the shank comprises a large majority of the electrode's overall length. Because the majority of the electrode is circular in cross-section, it is relatively easy to straighten the electrode prior to a machining operation and to keep it straight during the operation, thereby overcoming problems experienced with full-length, non-circular electrodes. The circular shank also avoids electrolyte pressure imbalances and eases the difficulty and high cost of manufacturing electrodes capable of forming non-circular holes.
    • 通过电化学加工形成非圆形孔,该电极包括具有圆形横截面的中空柄和设置在柄的一端上的具有非圆形横截面的中空末端部分。 尖端部分相对于柄部的长度非常小,使得柄部包括电极总长度的绝大部分。 由于电极的大部分是圆形的横截面,因此在加工操作之前相对容易矫直电极并且在操作期间使其保持直线,从而克服了全长非圆形电极所遇到的问题。 圆形柄还避免了电解液压力不平衡,并且减轻了制造能够形成非圆形孔的电极的难度和高成本。