公开(公告)号：US20060104629A1

公开(公告)日：2006-05-18

申请号：US10989858

申请日：2004-11-15

Applicant: James Boyd ,  Michael Cramer ,  David Cornell ,  David Smart ,  Joel Lawther

Inventor： James Boyd ,  Michael Cramer ,  David Cornell ,  David Smart ,  Joel Lawther

IPC: G03B17/24

CPC classification number: G03B17/24 ,  G03B15/00 ,  G03B2217/243

Abstract: A flash-capable photographic film camera is provided with an auxiliary light path to direct a portion of emitted flash light through an elongated secondary exposure window formed adjacent a side of the camera picture frame so as to expose an edge demarcation bar on the film in an interframe area between successive exposed picture frames. The secondary window preferably extends along substantially the full length of the picture frame side to produce a positive indication of an image frame edge for enhanced detection by conventional algorithm-based edge detectors irrespective of actual image frame density values.

Abstract translation: 闪光照相胶卷相机设置有辅助光路，以将发射的闪光的一部分引导通过邻近照相机画框侧面形成的细长二次曝光窗口，以便在胶片上暴露边缘分界杆 连续曝光的相框之间的帧间区域。 辅助窗口优选地沿着图像帧侧的大致整个长度延伸，以产生图像帧边缘的正指示，用于通过常规的基于算法的边缘检测器进行增强的检测，而与实际的图像帧密度值无关。