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1. 发明授权

US09160897B2 Fast motion estimation method 有权
标题翻译：快速运动估计法
公开(公告)号：US09160897B2
公开(公告)日：2015-10-13
申请号：US12137113
申请日：2008-06-11
申请人： Felix Albu , Corneliu Florea , Adrian Zamfir , Alexandru Drimbarean , Peter Corcoran
发明人： Felix Albu , Corneliu Florea , Adrian Zamfir , Alexandru Drimbarean , Peter Corcoran
IPC分类号： H04N5/228 , H04N5/14 , H04N5/232 , H04N19/527
CPC分类号： H04N5/144 , H04N5/23248 , H04N5/23261 , H04N19/527
摘要： An estimated total camera motion between temporally proximate image frames is computed. A desired component of the estimated total camera motion is determined including distinguishing an undesired component of the estimated total camera motion, and including characterizing vector values of motion between the image frames. A counter is incremented for each pixel group having a summed luminance that is greater than a threshold. A counter may be decremented for pixels that are under a second threshold, or a zero bit may be applied to pixels below a single threshold. The threshold or thresholds is/are determined based on a dynamic luminance range of the sequence. The desired camera motion is computed including representing the vector values based on final values of counts for the image frames. A corrected image sequence is generated including the desired component of the estimated total camera motion, and excluding the undesired component.
摘要翻译：计算时间上接近的图像帧之间的估计的总相机运动。确定所估计的总相机运动的期望分量，包括区分估计的全部相机运动的不期望分量，并且包括图像帧之间的运动的特征向量值。对于具有大于阈值的总和亮度的每个像素组，计数器递增。对于处于第二阈值以下的像素，计数器可以递减，或者可将零位施加到单个阈值以下的像素。基于序列的动态亮度范围来确定阈值或阈值。计算所需的相机运动，包括基于图像帧的计数的最终值来表示矢量值。产生校正的图像序列，其包括所估计的全部相机运动的期望分量，并且排除不期望的分量。

2. 发明授权

US08633999B2 Methods and apparatuses for foreground, top-of-the-head separation from background 有权
标题翻译：用于前台，头顶与背景分离的方法和装置
公开(公告)号：US08633999B2
公开(公告)日：2014-01-21
申请号：US12790594
申请日：2010-05-28
申请人： Adrian Capata , Mihai Ciuc , Adrian Zamfir , Alexandru Drimbarean
发明人： Adrian Capata , Mihai Ciuc , Adrian Zamfir , Alexandru Drimbarean
IPC分类号： H04N5/262 , H04N5/235 , H04N5/228 , H04N5/222 , G06K9/00 , G06K9/46 , G06K9/66 , G06K9/62
CPC分类号： H04N5/2354 , G06T7/11 , G06T7/174 , G06T7/194 , G06T2207/10152 , G06T2207/30196 , H04N5/272
摘要： Foreground and background regions of a digital image of a scene are distinguished from each other automatically. Foreground objects are identified in a binary image map that distinguishes between foreground pixels and background pixels. From the foreground objects, a primary foreground object is identified. Within the identified primary foreground object, a head region of the primary foreground object is located. Within the head region, patterns of foreground pixels and background pixels that are indicative of a head crown region are identified. Within the head crown region, pixels identified as background pixels that actually show portions of the primary foreground object are converted to foreground pixels, thus improving the accuracy of the binary image map.
摘要翻译：场景的数字图像的前景和背景区域彼此自动区分开。前景对象在二进制图像映射中识别，区分前景像素和背景像素。从前景对象中，识别主要的前景对象。在所识别的主要前景对象中，定位主要前景对象的头部区域。在头部区域内，识别表示头冠区域的前景像素和背景像素的图案。在头冠区域中，被确定为实际显示主要前景物体的部分的背景像素的像素被转换为前景像素，从而提高二值图像映射的精度。

3. 发明授权

US08254674B2 Analyzing partial face regions for red-eye detection in acquired digital images 有权
公开(公告)号：US08254674B2
公开(公告)日：2012-08-28
申请号：US12551258
申请日：2009-08-31
申请人： Florin Nanu , Stefan Petrescu , Mihnea Gangea , Adrian Capata , Mihai Ciuc , Adrian Zamfir , Eran Steinberg , Peter Corcoran , Alexei Pososin , Petronel Bigioi , Alexandru Drimbarean
发明人： Florin Nanu , Stefan Petrescu , Mihnea Gangea , Adrian Capata , Mihai Ciuc , Adrian Zamfir , Eran Steinberg , Peter Corcoran , Alexei Pososin , Petronel Bigioi , Alexandru Drimbarean
IPC分类号： G06K9/00
CPC分类号： H04N5/2256 , G06T5/005 , G06T5/008 , G06T7/11 , G06T7/136 , G06T7/90 , G06T2207/10024 , G06T2207/30216 , H04N1/624 , H04N5/23219
摘要： A method for red-eye detection in an acquired digital image includes acquiring a first image, and analyzing one or more partial face regions within the first image. One or more characteristics of the first image are determined. One or more corrective processes are identified including red eye correction that can be beneficially applied to the first image according to the one or more characteristics. The one or more corrective processes are applied to the first image.

4. 发明授权

US08199222B2 Low-light video frame enhancement 有权
标题翻译：低光视频帧增强
公开(公告)号：US08199222B2
公开(公告)日：2012-06-12
申请号：US12485316
申请日：2009-06-16
申请人： Alexandru Drimbarean , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea , Petronel Bigioi , Eran Steinberg , Peter Corcoran
发明人： Alexandru Drimbarean , Adrian Zamfir , Felix Albu , Vlad Poenaru , Corneliu Florea , Petronel Bigioi , Eran Steinberg , Peter Corcoran
IPC分类号： H04N5/225
CPC分类号： H04N5/2355 , G06T5/009 , G06T5/50 , G06T2207/10016 , G06T2207/10024 , G06T2207/10144 , H04N5/235 , H04N9/045
摘要： A method of combining image data from multiple frames to enhance one or more parameters of video image quality includes acquiring a first image at a first exposure duration, as well as acquiring a second image at a second exposure duration shorter than the first exposure duration and at a time just before, just after or overlapping in time with acquiring the first image, such that the first and second images include approximately a same first scene. In this way, the second image is relatively sharp and under-exposed, while the first image is relatively well-exposed and less sharp than the second image. Brightness and/or color information are extracted from the first image and applied to the second image to generate an enhanced version of the second image.
摘要翻译：一种组合来自多个帧的图像数据以增强视频图像质量的一个或多个参数的方法包括以第一曝光持续时间获取第一图像，以及以比第一曝光持续时间短的第二曝光持续时间获取第二图像，并且在获取第一图像之前，恰好在或之后重叠的时间，使得第一和第二图像包括大致相同的第一场景。以这种方式，第二图像相对较锋利且曝光不足，而第一图像相对曝光较好，并且不如第二图像那样锐利。从第一图像提取亮度和/或颜色信息并将其应用于第二图像以生成第二图像的增强版本。

5. 发明申请

US20120069222A1 Foreground/Background Separation Using Reference Images 审中-公开
公开(公告)号：US20120069222A1
公开(公告)日：2012-03-22
申请号：US13190773
申请日：2011-07-26
申请人： Eran Steinberg , Petronel Bigioi , Adrian Zamfir , Alexandru Drimbarean , Peter Corcoran , Mihai Ciuc , Adrian Capata
发明人： Eran Steinberg , Petronel Bigioi , Adrian Zamfir , Alexandru Drimbarean , Peter Corcoran , Mihai Ciuc , Adrian Capata
IPC分类号： H04N5/262 , G06K9/48
CPC分类号： H04N5/262 , G06K9/00228 , G06K9/036 , G06K9/3208 , G06T7/11 , G06T2207/30196 , H04N5/222 , H04N5/2226 , H04N5/23219
摘要： A technique involves distinguishing between foreground and background regions of a digital image of a scene. First and second images are captured of nominally a same scene. The first image is a relatively high resolution image taken with the foreground more in focus than the background, while the second image is a relatively low resolution reference image taken with the background more in focus than the foreground. Regions of the captured images are assigned as foreground or background. In accordance with the assigning, one or more processed images are rendered based on the first image or the second image, or both.

6. 发明授权

US08073286B2 Detection and correction of flash artifacts from airborne particulates 有权
标题翻译：检测和校正来自空气中的微粒的闪光伪影
公开(公告)号：US08073286B2
公开(公告)日：2011-12-06
申请号：US11836744
申请日：2007-08-09
申请人： Emilian David , Constantin Vertan , Adrian Zamfir , Alexandru Drimbarean , Peter Corcoran , Eran Steinberg
发明人： Emilian David , Constantin Vertan , Adrian Zamfir , Alexandru Drimbarean , Peter Corcoran , Eran Steinberg
IPC分类号： G06K9/40
CPC分类号： G06K9/40 , G06K9/4633 , G06T5/002 , G06T5/008 , G06T5/40 , G06T7/11 , G06T7/136 , G06T2207/20032
摘要： Flash image orb artifacts arising from specular reflections from airborne particles are corrected. A specific location is detected within a digital image of a flash image airborne particle artifact (orb). A defined curved plane shape is electronically identified within the image. Luminances are analyzed of pixels within the identified shape to assess whether the shape in fact corresponds to an orb. The digital image is corrected by removing the orb. One or more pixel values are adjusted inside the orb, and one or more edge pixel values of the orb are also adjusted.
摘要翻译：来自空气中颗粒的镜面反射产生的闪光图像球体伪像被校正。在闪光图像空气中的颗粒伪影（orb）的数字图像内检测到特定位置。在图像中以电子方式识别限定的弯曲平面形状。对所识别形状内的像素进行亮度分析，以评估其形状实际上是否对应于球体。通过移除球体来校正数字图像。在球体内部调整一个或多个像素值，并且还调整球体的一个或多个边缘像素值。

7. 发明授权

US08036460B2 Analyzing partial face regions for red-eye detection in acquired digital images 有权
标题翻译：在采集的数字图像中分析部分脸部区域进行红眼检测
公开(公告)号：US08036460B2
公开(公告)日：2011-10-11
申请号：US12834901
申请日：2010-07-13
申请人： Florin Nanu , Eran Steinberg , Peter Corcoran , Alexei Pososin , Petronel Bigioi , Alexandru Drimbarean , Stefan Petrescu , Mihnea Gangea , Adrian Capata , Mihai Ciuc , Adrian Zamfir
发明人： Florin Nanu , Eran Steinberg , Peter Corcoran , Alexei Pososin , Petronel Bigioi , Alexandru Drimbarean , Stefan Petrescu , Mihnea Gangea , Adrian Capata , Mihai Ciuc , Adrian Zamfir
IPC分类号： G06K9/00
CPC分类号： H04N5/2256 , G06T5/005 , G06T5/008 , G06T7/11 , G06T7/136 , G06T7/90 , G06T2207/10024 , G06T2207/30216 , H04N1/624 , H04N5/23219
摘要： A method for red-eye detection in an acquired digital image includes acquiring a first image, and analyzing one or more partial face regions within the first image. One or more characteristics of the first image are determined. One or more corrective processes are identified including red eye correction that can be beneficially applied to the first image according to the one or more characteristics. The one or more corrective processes are applied to the first image.
摘要翻译：所获取的数字图像中的红眼检测方法包括获取第一图像，以及分析第一图像内的一个或多个部分面部区域。确定第一图像的一个或多个特征。识别一个或多个校正过程，包括根据一个或多个特征可以有益地应用于第一图像的红眼校正。一个或多个校正过程被应用于第一图像。

8. 发明授权

US08009208B2 Detection and removal of blemishes in digital images utilizing original images of defocused scenes 有权
标题翻译：使用散焦场景的原始图像检测和去除数字图像中的瑕疵
公开(公告)号：US08009208B2
公开(公告)日：2011-08-30
申请号：US12708654
申请日：2010-02-19
申请人： Eran Steinberg , Petronel Bigioi , Adrian Zamfir
发明人： Eran Steinberg , Petronel Bigioi , Adrian Zamfir
IPC分类号： H04N5/217
CPC分类号： H04N1/4097 , G06K9/346 , G06K2209/01 , G06T5/005 , H04N5/2171 , H04N5/3572 , H04N5/367
摘要： A method automatically corrects dust artifact within image acquired by a system including a digital acquisition device including a lens assembly and a translucent lens cap. Multiple original digital images are acquired with the digital acquisition device. Probabilities that certain pixels correspond to dust artifact regions within the images are determined based at least in part on a comparison of suspected dust artifact regions within two or more of the images. Probable dust artifact regions are associated with extracted parameter values relating to the lens assembly when the images were acquired, A statistical dust map is formed including mapped dust regions based on the determining and associating. Pixels corresponding to correlated dust artifact regions are corrected within further digitally-acquired images based on the associated statistical dust map.
摘要翻译：一种方法自动地校正由包括透镜组件和半透明透镜盖的数字采集装置的系统获取的图像内的灰尘伪影。使用数字采集设备采集多个原始数字图像。至少部分地基于两个或多个图像内的可疑灰尘伪影区域的比较来确定某些像素对应于图像内的灰尘伪影区域的概率。当获取图像时，可能的灰尘伪影区域与提取的与透镜组件相关的参数值相关联。基于确定和关联，形成包括映射灰尘区域的统计灰度图。基于相关联的统计灰度图，在相关的灰尘伪影区域内的像素在进一步数字获取的图像内被校正。

9. 发明授权

US07995855B2 Image processing method and apparatus 有权
标题翻译：图像处理方法和装置
公开(公告)号：US07995855B2
公开(公告)日：2011-08-09
申请号：US12116140
申请日：2008-05-06
申请人： Felix Albu , Alexandru Drimbarean , Adrian Zamfir , Corneliu Florea
发明人： Felix Albu , Alexandru Drimbarean , Adrian Zamfir , Corneliu Florea
IPC分类号： G06K9/40
CPC分类号： H04N1/56 , G06T5/008 , G06T5/20 , G06T2207/10024 , G06T2207/20012 , H04N1/60
摘要： A method of processing an image includes traversing pixels of an image in a single pass over the image. An inverting function is applied to the pixels. A recursive filter is applied to the inverted pixel values. The filter has parameters which are derived from previously traversed pixel values of the image. A pixel value is combined with a filter parameter for the pixel to provide a processed pixel value for a processed image.
摘要翻译：处理图像的方法包括在图像中的单次遍历中遍历图像的像素。对像素应用反转功能。递归滤波器被应用于反相像素值。滤波器具有从先前经过的图像的像素值导出的参数。将像素值与用于像素的滤波器参数组合以提供经处理的图像的经处理的像素值。

10. 发明申请

US20110122297A1 METHOD AND APPARATUS FOR DETECTION AND CORRECTION OF FLASH-INDUCED EYE DEFECTS WITHIN DIGITAL IMAGES USING PREVIEW OR OTHER REFERENCE IMAGES 有权
标题翻译：使用预览或其他参考图像在数字图像中检测和校正闪烁的眼睛缺陷的方法和装置
公开(公告)号：US20110122297A1
公开(公告)日：2011-05-26
申请号：US12947731
申请日：2010-11-16
申请人： Eran Steinberg , Peter Corcoran , Yury Prilutsky , Petronel Bigioi , Adrian Zamfir , Florin Nanu , Alexandru Drimbarean
发明人： Eran Steinberg , Peter Corcoran , Yury Prilutsky , Petronel Bigioi , Adrian Zamfir , Florin Nanu , Alexandru Drimbarean
IPC分类号： H04N5/217 , G06K9/00
CPC分类号： G06K9/00 , G06K9/0061 , G06T5/008 , G06T5/50 , G06T7/90 , G06T7/97 , G06T2207/20008 , G06T2207/30201 , G06T2207/30216
摘要： A method for red-eye detection in an acquired digital image acquiring one or more preview or other reference images without a flash. Any red regions that exist within the one or more reference images are determined. A main image is acquired with a flash of approximately a same scene as the one or more reference images. The main image is analyzed to determine any candidate red eye defect regions that exist within the main image. Any red regions determined to exist within the one or more reference images are compared with any candidate red eye defect regions determined to exist within the main image. Any candidate red eye defect regions within the main image corresponding to red regions determined also to exist within the one or more reference images are removed as candidate red eye defect regions.
摘要翻译：一种获取的数字图像中的红眼检测方法，用于在不闪光的情况下获取一个或多个预览或其他参考图像。确定存在于一个或多个参考图像内的任何红色区域。以与一个或多个参考图像大致相同的场景的闪光获取主图像。分析主图像以确定存在于主图像内的任何候选红眼缺陷区域。将确定存在于一个或多个参考图像内的任何红色区域与确定存在于主图像内的任何候选红眼缺陷区域进行比较。除了确定还存在于一个或多个参考图像内的对应于红色区域的主图像内的候选红眼缺陷区域作为候选红眼缺陷区域被去除。

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