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11. 发明授权

US09715898B2 Method and device for compressed-domain video editing 有权
公开(公告)号：US09715898B2
公开(公告)日：2017-07-25
申请号：US10798824
申请日：2004-03-10
申请人： Asad Islam , Fehmi Chebil
发明人： Asad Islam , Fehmi Chebil
IPC分类号： G11B27/00 , H04N5/93 , H04N9/80 , G11B27/031
CPC分类号： G11B27/031
摘要： A method and device for editing a media file comprising input video frames. The editing device comprises a frame analyzer to determine whether the input video frames have the frame characteristics suitable for compressed domain editing or spatial domain editing. For those frames suitable for compressed domain editing, the frame analyzer provides frame data to a compressed domain processor so that video frame data can be modified in the compressed domain. For those frames only suitable for spatial domain editing, the frame analyzer provides frame data to a decoder and then to a spatial domain processor for frame data modification. The modified data at different domains are combined and converted to file format by a file format composer. Moreover, a file format parser is used to separate audio data from video data so that audio data can also be modified, if so desired.

12. 发明申请

US20100045800A1 Method and Device for Controlling Auto Focusing of a Video Camera by Tracking a Region-of-Interest 有权
标题翻译：通过跟踪感兴趣区域来控制摄像机的自动对焦的方法和装置
公开(公告)号：US20100045800A1
公开(公告)日：2010-02-25
申请号：US12087207
申请日：2005-12-30
申请人： Fehmi Chebil , Mohamed Miled , Asad Islam
发明人： Fehmi Chebil , Mohamed Miled , Asad Islam
IPC分类号： H04N5/225 , G06K9/00
CPC分类号： G06T7/20 , G03B13/36 , H04N5/23212
摘要： The invention concerns an electronic device equipped with a video imaging process capability, which device includes a camera unit arranged to produce image frames from an imaging view which includes a region-of-interest ROI, an adjustable optics arranged in connection with the camera unit in order to focus the ROI on the camera unit, an identifier unit in order to identify a ROI from the image frame, a tracking unit in order to track the ROI from the image frames during the video imaging process and an auto-focus unit arranged to analyze the ROI on the basis of the tracking results provided by the tracking unit in order to adjust the optics. The device is arranged to determine the spatial position of the ROI in the produced image frame without any estimation measures.
摘要翻译：本发明涉及一种配备有视频成像处理能力的电子设备，该设备包括相机单元，其被配置为从包括感兴趣区域ROI的成像视图产生图像帧，与摄像机单元连接配置的可调光学元件为了在图像帧中识别ROI，跟踪单元以便在视频成像处理期间跟踪图像帧的ROI和将自动对焦单元布置成根据跟踪单元提供的跟踪结果分析ROI，以调整光学元件。该装置被布置为在没有任何估计措施的情况下确定所生成的图像帧中的ROI的空间位置。

13. 发明申请

US20070223823A1 Method, apparatus, system and computer program product for providing compression of image files 审中-公开
标题翻译：用于提供图像文件压缩的方法，装置，系统和计算机程序产品
公开(公告)号：US20070223823A1
公开(公告)日：2007-09-27
申请号：US11385594
申请日：2006-03-21
申请人： Asad Islam , Fehmi Chebil , Ossi Kalevo
发明人： Asad Islam , Fehmi Chebil , Ossi Kalevo
IPC分类号： G06K9/36
CPC分类号： H04N19/132 , H04N19/146 , H04N19/184
摘要： A method of providing compression of image files includes modifying an input image by eliminating a predetermined number of bits from lower bit planes of the input image, and encoding the modified image. Elimination of the predetermined number of bits of the input image may be performed by a bit plane shift of the predetermined number of bits. The image files may then be decompressed by decoding an encoded image, and reconstructing the decoded image by replacing the eliminated predetermined number of bits with replacement bits.
摘要翻译：提供图像文件压缩的方法包括通过从输入图像的较低位平面消除预定数量的比特来修改输入图像，并对修改后的图像进行编码。可以通过预定位数的位平面移位来执行输入图像的预定位数的消除。然后可以通过对编码图像进行解码来对图像文件进行解压缩，并且通过用替换位替换消除的预定数量的比特来重构解码图像。

14. 发明申请

US20050201723A1 Method and device for compressed-domain video editing 有权
标题翻译：用于压缩域视频编辑的方法和设备
公开(公告)号：US20050201723A1
公开(公告)日：2005-09-15
申请号：US10798824
申请日：2004-03-10
申请人： Asad Islam , Fehmi Chebil
发明人： Asad Islam , Fehmi Chebil
IPC分类号： G11B27/031 , G11B27/036 , G11B27/00
CPC分类号： G11B27/031
摘要： A method and device for editing a media file comprising input video frames. The editing device comprises a frame analyzer to determine whether the input video frames have the frame characteristics suitable for compressed domain editing or spatial domain editing. For those frames suitable for compressed domain editing, the frame analyzer provides frame data to a compressed domain processor so that video frame data can be modified in the compressed domain. For those frames only suitable for spatial domain editing, the frame analyzer provides frame data to a decoder and then to a spatial domain processor for frame data modification. The modified data at different domains are combined and converted to file format by a file format composer. Moreover, a file format parser is used to separate audio data from video data so that audio data can also be modified, if so desired.
摘要翻译：一种用于编辑包括输入视频帧的媒体文件的方法和装置。编辑装置包括帧分析器，用于确定输入的视频帧是否具有适于压缩域编辑或空间域编辑的帧特性。对于适用于压缩域编辑的那些帧，帧分析器向压缩域处理器提供帧数据，使得可以在压缩域中修改视频帧数据。对于仅适用于空间域编辑的帧，帧分析器向解码器提供帧数据，然后向帧空间域处理器提供帧数据修改。将不同域的修改后的数据合并，并通过文件格式作曲家转换为文件格式。此外，文件格式解析器用于将音频数据与视频数据分离，以便如果需要也可以修改音频数据。

15. 发明授权

US06697521B2 Method and system for achieving coding gains in wavelet-based image codecs 失效
标题翻译：用于实现基于小波的图像编解码器的编码增益的方法和系统
公开(公告)号：US06697521B2
公开(公告)日：2004-02-24
申请号：US09883105
申请日：2001-06-15
申请人： Asad Islam , Fehmi Chebil
发明人： Asad Islam , Fehmi Chebil
IPC分类号： G06K936
CPC分类号： H04N19/186 , H04N19/10 , H04N19/63
摘要： A method and system for coding a RGB image in an encoder and a decoder. In the encoder, the RGB image components are converted into YUV components. One or more of the lower bit-planes of YUV components are eliminated before the YUV components are transformed by forward wavelet transform and coded into a codestream for transmission. In the decoder, the codestream is decoded and transformed by inverse wavelet transform into a set of reconstructed YUV components. The bit-planes of these reconstructed YUV components are up-shifted so that the up-shifted YUV components are structurally equivalent to the original YUV components before they are adjusted in the encoder. However, the lower bit-planes that come into being due to the up-shifting are all set to zero. The up-shifted YUV components are then converted into the RGB component of the reconstructed image.
摘要翻译：一种用于对编码器和解码器中的RGB图像进行编码的方法和系统。在编码器中，RGB图像分量被转换为YUV分量。在通过前向小波变换将YUV分量变换并编码成码流以进行传输之前，消除了YUV分量的一个或多个较低位平面。在解码器中，码流被逆小波变换解码并变换成一组重构的YUV分量。这些重构的YUV分量的位平面被上移，使得上移YUV分量在结构上等同于在编码器中调整之前的原始YUV分量。然而，由于向上移位而产生的较低位平面全部设置为零。然后将上移的YUV分量转换成重构图像的RGB分量。

16. 发明授权

US06993199B2 Method and system for improving coding efficiency in image codecs 有权
公开(公告)号：US06993199B2
公开(公告)日：2006-01-31
申请号：US09956587
申请日：2001-09-18
申请人： Fehmi Chebil
发明人： Fehmi Chebil
IPC分类号： G06K9/36
CPC分类号： H04N19/1883 , H04N19/103 , H04N19/12 , H04N19/15 , H04N19/154 , H04N19/156 , H04N19/184 , H04N19/63
摘要： A method and system for encoding an image for providing encoded data for transmission or storage. After the image is decomposed by a transform into sub-bands containing blocks or samples of transformed image data organized in a number of bit-planes, it is adjusted to reduce the number of bit-planes prior to being encoded by a bit-plane coder into encoded data. The reduction of the bit-planes is based on the compression factor of the encoding process, the transmission target bit-rate, the type of sub-band and the resolution level of the transformed image data.

17. 发明授权

US06757434B2 Region-of-interest tracking method and device for wavelet-based video coding 有权
标题翻译：基于小波的视频编码的兴趣爱好跟踪方法和装置
公开(公告)号：US06757434B2
公开(公告)日：2004-06-29
申请号：US10293976
申请日：2002-11-12
申请人： Mohamed Khames Ben Hadj Miled , Fehmi Chebil
发明人： Mohamed Khames Ben Hadj Miled , Fehmi Chebil
IPC分类号： G06K936
CPC分类号： H04N19/543 , G06T7/262 , H04N19/17 , H04N19/63
摘要： A method and device for tracking a region-of-interest in a sequence of image frames, wherein the boundary of the target region of a previous frame is projected onto the current frame so that a search area in the current frame can be established. For every pixel in the search area in the current frame, a search window is established in the previous frame so as to find a matched pixel within the search window. If the matched pixel is within the ROI of the previous frame, then the corresponding pixel in the current frame is preliminarily considered as a pixel within the ROI of the current frame. This backward matching is carried out using a low pass subband in the wavelet domain. The preliminary ROI in the current frame is then refined using edge detection in a high frequency subband.
摘要翻译：一种用于跟踪图像帧序列中的感兴趣区域的方法和装置，其中先前帧的目标区域的边界被投影到当前帧上，使得可以建立当前帧中的搜索区域。对于当前帧中的搜索区域中的每个像素，在前一帧中建立搜索窗口，以便在搜索窗口内找到匹配的像素。如果匹配像素在先前帧的ROI内，则当前帧中的对应像素被预先考虑为当前帧的ROI内的像素。这种反向匹配是使用小波域中的低通子带进行的。然后使用高频子带中的边缘检测来改进当前帧中的初始ROI。

18. 发明申请

US20070147510A1 Method and module for altering color space parameters of video data stream in compressed domain 审中-公开
标题翻译：用于改变压缩域中视频数据流颜色空间参数的方法和模块
公开(公告)号：US20070147510A1
公开(公告)日：2007-06-28
申请号：US11319026
申请日：2005-12-27
申请人： Islam Asad , Fehmi Chebil
发明人： Islam Asad , Fehmi Chebil
IPC分类号： H04N11/04
CPC分类号： H04N9/68 , H04N19/186 , H04N19/40
摘要： The object of the present invention is to provide a methodology and a device for image processing (e.g. color toning) of a compressed video sequence, which overcomes the deficiencies of the state of the art. Particularly, the invention provides a solution for performing color-toning operations on H.263 and MPEG-4 videos in compressed domain.
摘要翻译：本发明的目的是提供一种压缩视频序列的图像处理（例如彩色调色）的方法和装置，其克服了现有技术的不足之处。特别地，本发明提供了一种用于在压缩域中对H.263和MPEG-4视频执行色调操作的解决方案。

19. 发明申请

US20060233262A1 Signaling of bit stream ordering in scalable video coding 审中-公开
标题翻译：可扩展视频编码中的比特流顺序的信令
公开(公告)号：US20060233262A1
公开(公告)日：2006-10-19
申请号：US11105271
申请日：2005-04-13
申请人： Justin Ridge , Yiliang Bao , Marta Karczewicz , Xianglin Wang , Fehmi Chebil
发明人： Justin Ridge , Yiliang Bao , Marta Karczewicz , Xianglin Wang , Fehmi Chebil
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66
CPC分类号： H04N19/34 , H04N19/70
摘要： The ordering of iterations within a video bit stream can be specified by an added syntax element. Changing the order of iteration can improve the ability to extract certain constituent elements of the video coding. In one embodiment, a method of decoding scalable video data having multiple dimensions of scalability includes receiving an indication of an ordering of iteration within a coded bit stream across the multiple dimensions and ordering iterations according to the received indication. The techniques can also be applied to encoding.
摘要翻译：视频比特流内的迭代排序可以通过添加的语法元素来指定。改变迭代的顺序可以提高提取视频编码的某些组成元素的能力。在一个实施例中，一种解码具有可扩展性的多个维度的可缩放视频数据的方法包括：根据所接收的指示在多个维度上接收编码比特流内的迭代排序的指示，以及排序迭代。这些技术也可以应用于编码。

20. 发明授权

US06760481B1 Method and system for processing image data 有权
标题翻译：处理图像数据的方法和系统
公开(公告)号：US06760481B1
公开(公告)日：2004-07-06
申请号：US09591482
申请日：2000-06-09
申请人： Fehmi Chebil , Kai Willner , Jani Lainema
发明人： Fehmi Chebil , Kai Willner , Jani Lainema
IPC分类号： G06K936
CPC分类号： H04N19/647
摘要： The invention relates generally to the processing of image data. Especially the invention applies to the coding and decoding of still images for compression and transfer in a mobile telecommunications system. The objects of the invention are fulfilled by providing an image processing procedure, which is based on wavelet transform (202), successive approximation quantization (204, 208) and guadtree coding (206). The quadtree coding preferably comprises the step of coding the significance with two symbols. The solution does not require large data processing or memory capacity. Still it offers a high image quality for a given bit rate compared to the prior art solutions. The solution according to the invention also satisfies the requirements of progressivity in quality and resolution.
摘要翻译：本发明一般涉及图像数据的处理。特别地，本发明适用于移动电信系统中用于压缩和传送的静止图像的编码和解码。通过提供基于小波变换（202），逐次逼近量化（204,208）和加密编码（206）的图像处理过程来实现本发明的目的。四叉树编码优选地包括用两个符号对重要性进行编码的步骤。该解决方案不需要大量数据处理或内存容量。与现有技术的解决方案相比，仍然可以提供给定比特率的高图像质量。根据本发明的解决方案还满足了质量和分辨率的渐进性要求。

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