公开(公告)号：US20110317911A1

公开(公告)日：2011-12-29

申请号：US13168356

申请日：2011-06-24

申请人： Xiaobo Zhou ,  Keisuke Okamura ,  Koichiro Seo

发明人： Xiaobo Zhou ,  Keisuke Okamura ,  Koichiro Seo

IPC分类号： G06K9/00

CPC分类号： H04N5/2351

摘要： The present invention discloses a color rolling detection method and detection device for an input image, which can detect a phenomenon of color rolling in the image rapidly, efficiently and at a low cost. The detection method includes the steps of: an extracting step for extracting parameter values indicative of the color or brightness of the image in a detection time period T3; a preprocessing step for performing a preprocess to the extracted parameter values so as to obtain characteristic values of the image; an initial value setting step for obtaining a first initial value from the characteristic values in an initialization time period of the detection time period T3; an average value calculating step for calculating, with respect to each detection cycle T2 in the detection time period T3, an average value on the time axis of the characteristic values in the detection cycle T2 based on the obtained first initial value; and a detecting step for detecting whether there exists in the detection time period T3 such a detection cycle T2 that the characteristic values in the detection cycle T2 always maintain a deviation in a specific direction relative to the average value thereof, wherein if so, then occurrence of the color rolling is judged; otherwise, no occurrence of the color rolling is judged.

摘要翻译： 本发明公开了一种用于输入图像的彩色滚动检测方法和检测装置，其可以快速，有效和低成本地检测图像中的色滚现象。 检测方法包括以下步骤：提取步骤，用于在检测时间段T3中提取指示图像的颜色或亮度的参数值; 预处理步骤，用于对所提取的参数值执行预处理，以获得图像的特征值; 初始值设定步骤，用于根据检测时间段T3的初始化时间段中的特征值获得第一初始值; 平均值计算步骤，根据所获得的第一初始值，针对检测时间段T3中的每个检测周期T2计算检测周期T2中的特征值的时间轴上的平均值; 以及检测步骤，用于检测在检测周期T2中是否存在检测周期T2中的特征值相对于其平均值一直保持特定方向的偏差的检测周期T2，其中如果是，则发生 的颜色滚动判断; 否则，不会发生颜色滚动的发生。

公开(公告)号：US08577138B2

公开(公告)日：2013-11-05

申请号：US13168356

申请日：2011-06-24

申请人： Xiaobo Zhou ,  Keisuke Okamura ,  Koichiro Seo

发明人： Xiaobo Zhou ,  Keisuke Okamura ,  Koichiro Seo

IPC分类号： G06K9/00

CPC分类号： H04N5/2351

摘要： The present invention discloses a color rolling detection method and detection device for an input image, which can detect a phenomenon of color rolling in the image rapidly, efficiently and at a low cost. The detection method includes the steps of: an extracting step for extracting parameter values indicative of the color or brightness of the image in a detection time period T3; a preprocessing step for performing a preprocess to the extracted parameter values so as to obtain characteristic values of the image; an initial value setting step for obtaining a first initial value from the characteristic values in an initialization time period of the detection time period T3; an average value calculating step for calculating, with respect to each detection cycle T2 in the detection time period T3, an average value on the time axis of the characteristic values in the detection cycle T2 based on the obtained first initial value; and a detecting step for detecting whether there exists in the detection time period T3 such a detection cycle T2 that the characteristic values in the detection cycle T2 always maintain a deviation in a specific direction relative to the average value thereof, wherein if so, then occurrence of the color rolling is judged; otherwise, no occurrence of the color rolling is judged.

摘要翻译： 本发明公开了一种用于输入图像的彩色滚动检测方法和检测装置，其可以快速，有效和低成本地检测图像中的色滚现象。 检测方法包括以下步骤：提取步骤，用于在检测时间段T3中提取指示图像的颜色或亮度的参数值; 预处理步骤，用于对所提取的参数值执行预处理，以获得图像的特征值; 初始值设定步骤，用于根据检测时间段T3的初始化时间段中的特征值获得第一初始值; 平均值计算步骤，根据所获得的第一初始值，针对检测时间段T3中的每个检测周期T2计算检测周期T2中的特征值的时间轴上的平均值; 以及检测步骤，用于检测在检测周期T2中是否存在检测周期T2中的特征值相对于其平均值一直保持特定方向的偏差的检测周期T2，其中如果是，则发生 的颜色滚动判断; 否则，不会发生颜色滚动的发生。

公开(公告)号：US20060033823A1

公开(公告)日：2006-02-16

申请号：US10528968

申请日：2003-09-18

申请人： Keisuke Okamura

发明人： Keisuke Okamura

IPC分类号： H04N5/202

CPC分类号： H04N5/2355 ,  H04N5/235

摘要： An image pickup apparatus capable of performing dynamic assignment of an output image in a dynamic range according to a subject. The image pickup apparatus includes an image pickup device (131) for picking up an image of a subject, a signal processing section (133) for generating a composite image having a relatively wider dynamic range than at least either of the dynamic ranges of a long-time exposure image picked up with a relatively long exposure time by the image pickup device and a short-time exposure image picked up with a relatively short exposure time by the image pickup device, by synthesizing the long-time exposure image and the short-time exposure image, and a control section (137) for compressing the composite image and dynamically varies the assignment proportion of a high luminance dynamic range to a low-middle luminance dynamic range in a dynamic range of an output image to be outputted as a video signal.

摘要翻译： 一种能够根据被摄体在动态范围内进行输出图像的动态分配的摄像装置。 图像拾取装置包括用于拾取对象的图像的图像拾取装置（131），用于生成具有比长的动态范围中的至少任一个更宽的动态范围的合成图像的信号处理部（133） 通过图像拾取装置以相对长的曝光时间拍摄的时间曝光图像和由图像拾取装置以相对短的曝光时间拍摄的短时间曝光图像，通过合成长时间曝光图像和短时曝光图像， 时间曝光图像和用于压缩合成图像的控制部分（137），并且在输出图像的动态范围内动态地将高亮度动态范围的分配比例改变为低中亮度动态范围，作为视频输出 信号。

公开(公告)号：US07609320B2

公开(公告)日：2009-10-27

申请号：US10528968

申请日：2003-09-18

申请人： Keisuke Okamura

发明人： Keisuke Okamura

IPC分类号： G03B7/00 ,  H04N5/235

CPC分类号： H04N5/2355 ,  H04N5/235

摘要： An image pickup apparatus for performing dynamic assignment of an output image in a dynamic range according to a subject. An image pickup device picks up an image of a subject, a signal processing section generates a composite image having a relatively wider dynamic range than at least either of the dynamic ranges of a long-time exposure image picked up with a relatively long exposure time by the image pickup device and a short-time exposure image picked up with a relatively short exposure time by the image pickup device, by synthesizing the long-time exposure image and the short-time exposure image A, control section compresses the composite image and dynamically varies the assignment proportion of a high luminance dynamic range to a low-middle luminance dynamic range in a dynamic range of an output image to be outputted as a video signal.

摘要翻译： 一种用于根据被摄体在动态范围内执行输出图像的动态分配的图像拾取装置。 图像拾取装置拾取被摄体的图像，信号处理部生成具有相对较宽的动态范围的合成图像，该动态范围比通过相对长的曝光时间拍摄的长时间曝光图像的动态范围中的至少任一个 图像拾取装置和由图像拾取装置以相对短的曝光时间拍摄的短时间曝光图像，通过合成长时间曝光图像和短时间曝光图像A，控制部分压缩合成图像并动态地 将作为视频信号输出的输出图像的动态范围中的高亮度动态范围的分配比例改变为低中亮度动态范围。