公开(公告)号：KR1020090066124A

公开(公告)日：2009-06-23

申请号：KR1020070133748

申请日：2007-12-18

Applicant: 김종남

Inventor： 김원희 ,  김종남 ,  정용재 ,  문광석 ,  박지규

IPC: H04N5/91 ,  G06T7/00

Abstract: A method for adaptively detecting scene switchover in real-time in a PMP(Personal Multimedia Player) is provided to discriminate the scene switchover more easily than using a present dispersion value by using weight dispersion. A dispersion value applying weight is used to extract a feature value of a scene switchover. An average of pixel values is computed from a differential frame between two consecutive frames. Dispersion of the next frame is calculated by using the calculated average.

Abstract translation: 提供一种用于在PMP（Personal Multimedia Player）中实时自动检测场景切换的方法，以便通过使用权重色散比使用当前色散值更容易地区分场景切换。 使用分散值应用权重来提取场景切换的特征值。 从两个连续帧之间的差分帧计算像素值的平均值。 通过使用计算的平均值计算下一帧的色散。

公开(公告)号：KR1020090101332A

公开(公告)日：2009-09-25

申请号：KR1020080026665

申请日：2008-03-22

Applicant: 김종남

Inventor： 김원희 ,  김종남 ,  정용재 ,  문광석 ,  이강석

IPC: H04N21/8358 ,  H04N7/18

CPC classification number: H04N21/8358 ,  G06T3/4053 ,  H04N7/18 ,  H04N21/23476

Abstract: PURPOSE: A watermarking and encryption technique for resolution improvement, forgery prevention and contents spread prevention in a surveillance camera system is provided to realize high resolution image restoration and watermarking while preventing image quality deterioration of an important area like a face by selectively watermarking a non interest area. CONSTITUTION: A watermarking and encryption technique for resolution improvement, forgery prevention and contents spread prevention in a surveillance camera system improves resolution of a human face up to a level that subjective determination is possible in the surveillance camera system. Watermark information is selectively inserted into a non interesting area by selecting a area when invasion is generated in the surveillance camera system. In the surveillance camera system, a watermark is selectively inserted into only a specific frame by watermarking time information. A watermark is selectively inserted into only a specific part of a GOP(Group of Picture) in the surveillance camera system. A monitoring image is and stored by selectively encrypting only a part that a user wants.

Abstract translation: 目的：提供一种用于分辨率改进的水印和加密技术，用于监控摄像机系统中的防伪和防止内容扩散，以通过有选择地水印非兴趣来防止诸如脸部的重要区域的图像质量恶化，从而实现高分辨率图像恢复和水印 区。 构成：用于分辨率改进的水印和加密技术，监视摄像机系统中的防伪和内容扩散防止将人脸的分辨率提高到可以在监视摄像机系统中进行主观判断的水平。 通过选择在监控摄像机系统中产生入侵的区域，将水印信息有选择地插入到非有意义的区域。 在监视摄像机系统中，通过水印时间信息，水印被有选择地插入到特定帧中。 仅在监视摄像机系统中的GOP（图像组）的特定部分中选择性地插入水印。 通过仅选择性地加密用户想要的部分来存储监视图像。

公开(公告)号：KR1020090094958A

公开(公告)日：2009-09-09

申请号：KR1020080019978

申请日：2008-03-04

Applicant: 김종남

Inventor： 정용재 ,  김종남 ,  김원희 ,  문광석 ,  박지규

IPC: H04N21/43 ,  H04N5/91 ,  H04N5/93

CPC classification number: H04N21/4621

Abstract: A method of detecting a real time scene change in a portable multimedia player is provided to realize a real time scene detection function in a system with a small amount of resources. A portable multimedia player detects a scene change in real time while playing multimedia. The player plays the detected scene. The player detects a scene change in real time while storing multimedia broadcast data. The player stores detected scene change time information in a storage device while storing the multimedia broadcast data. The player accesses or plays all scenes in real time by using the stored multimedia contents are the stored scene change time information.

Abstract translation: 提供一种检测便携式多媒体播放器中的实时场景变化的方法，以在具有少量资源的系统中实现实时场景检测功能。 便携式多媒体播放器在播放多媒体时实时检测场景变化。 播放器播放检测到的场景。 播放器在存储多媒体广播数据的同时，实时检测场景变化。 播放器在存储多媒体广播数据的同时将检测到的场景改变时间信息存储在存储装置中。 播放器通过使用存储的多媒体内容实时访问或播放所有场景是存储的场景改变时间信息。