公开(公告)号：US20120114262A1

公开(公告)日：2012-05-10

申请号：US13091137

申请日：2011-04-21

Applicant: Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

Inventor： Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

IPC: G06K9/40

CPC classification number: G06T5/006 ,  G06T2207/20021

Abstract: The present invention provides an image correction method and a related image correction system which can correct images captured via a fisheye lens or a ultra-wide angle lens camera so as to alleviate geometrical distortion in the images, and geometrically adjust the images according to user's requirements. Wherein, the present invention further enhances the processing performance of image correction computation by a memory allocation technique.

Abstract translation: 本发明提供一种图像校正方法和相关图像校正系统，其可以校正经由鱼眼镜头或超广角镜头相机拍摄的图像，以减轻图像中的几何失真，并根据用户要求进行几何调整图像 。 其中，本发明通过存储器分配技术进一步提高图像校正计算的处理性能。

公开(公告)号：US20100328200A1

公开(公告)日：2010-12-30

申请号：US12822187

申请日：2010-06-24

Applicant: Chi-Chang Yu ,  Chih-Yang Tzeng ,  Homer H. Chen ,  Meng-Chun Lin ,  I-Hau Yeh ,  Hong-Cheng Chen

Inventor： Chi-Chang Yu ,  Chih-Yang Tzeng ,  Homer H. Chen ,  Meng-Chun Lin ,  I-Hau Yeh ,  Hong-Cheng Chen

IPC: G06F3/033

CPC classification number: G06F3/0386

Abstract: A device for converting display screen into touch panel screen includes a projection screen; an image projection unit for projecting an image on the projection screen; a light pointer for emitting a light spot signal of a specific wavelength on the projection screen; an image detecting unit, which includes a fisheye lens for receiving the image on the projection screen to generate a fisheye distorted image; and an optical filter for filtering out the optical energy except the light spot signal of the specific wavelength; an image processing unit, coupled to the image detecting unit, for calculating a first position of the light spot on the projection screen according to the fisheye distorted image; and a message transmitting unit, coupled to the image processing unit, for outputting a touch panel signal according to the calculating result of the image processing unit.

Abstract translation: 用于将显示屏转换成触摸面板屏幕的装置包括投影屏幕; 图像投影单元，用于在投影屏幕上投影图像; 用于在投影屏幕上发射特定波长的光点信号的光指示器; 图像检测单元，其包括用于在投影屏幕上接收图像以产生鱼眼失真图像的鱼眼镜头; 以及用于滤除特定波长的光点信号以外的光能的滤光器; 图像处理单元，耦合到图像检测单元，用于根据鱼眼失真图像计算投影屏幕上的光点的第一位置; 以及消息发送单元，耦合到所述图像处理单元，用于根据所述图像处理单元的计算结果输出触摸面板信号。

公开(公告)号：US20080212679A1

公开(公告)日：2008-09-04

申请号：US12073072

申请日：2008-02-29

Applicant: Meng-Chun Lin ,  Lan-Rong Dung

Inventor： Meng-Chun Lin ,  Lan-Rong Dung

IPC: H04N7/26

CPC classification number: H04N19/57 ,  H04N19/423 ,  H04N19/433

Abstract: A memory-efficient motion estimation technique for high-resolution video coding is proposed. The main objective is to reduce the external memory access, especially for limited local memory resource. The reduction of memory access can successfully save the notorious power consumption. The key to reduce the memory access is based on center-biased algorithm in that the center-biased algorithm performs the motion vector searching with the minimum search data. While considering the data reusability, the proposed dual-search-windowing approaches use a secondary windowing as an option per searching necessity, by which the loading of search windows can be alleviated and hence reduce the required external memory bandwidth, without significant quality degradation.

Abstract translation: 提出了一种用于高分辨率视频编码的存储器有效运动估计技术。 主要目标是减少外部存储器访问，特别是对于有限的本地内存资源。 内存访问的减少可以成功地保存臭名昭着的功耗。 减少存储器访问的关键是基于中心偏置算法，因为中心偏置算法使用最小搜索数据执行运动矢量搜索。 在考虑数据可重用性的同时，提出的双重搜索窗口方法使用辅助窗口作为每个搜索必要性的选项，通过该选项可以减少搜索窗口的加载，从而减少所需的外部存储器带宽，而不会显着降低质量。

公开(公告)号：US09153014B2

公开(公告)日：2015-10-06

申请号：US13091137

申请日：2011-04-21

Applicant: Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

Inventor： Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

IPC: G06K9/32 ,  G06T5/00

CPC classification number: G06T5/006 ,  G06T2207/20021

Abstract: The present invention provides an image correction method and a related image correction system which can correct images captured via a fisheye lens or a ultra-wide angle lens camera so as to alleviate geometrical distortion in the images, and geometrically adjust the images according to user's requirements. Wherein, the present invention further enhances the processing performance of image correction computation by a memory allocation technique.

Abstract translation: 本发明提供一种图像校正方法和相关图像校正系统，其可以校正经由鱼眼镜头或超广角镜头相机拍摄的图像，以减轻图像中的几何失真，并根据用户要求进行几何调整图像 。 其中，本发明通过存储器分配技术进一步提高图像校正计算的处理性能。