-
公开(公告)号：US11176649B1
公开(公告)日：2021-11-16
申请号：US15613155
申请日：2017-06-03
发明人： Alok Kumar , Bhupender Kumar , Paras Garg
摘要： A system and method for identifying presence of digital ghosting artifacts in videos is disclosed. The method comprises estimating a blending parameter (α) for a current image using a previous image and a next image of a digital video stream. Successively, a blended image (B) is created by mixing contents of the previous image and the next image based on the estimated blending parameter (α). Thereafter, a first similarity is computed between the blended image (B) and a de-interlaced image (C), based on a Normalized Cross Correlation (NCC) between multiple blocks of the blended image (B) and the de-interlaced image (C). Successively, a second similarity is computed between the blended image (B) and the de-interlaced image (C), based on values of standard deviation of an absolute difference frame determined between the blended image (B) and the de-interlaced image (C). The de-interlaced image (C) is finally identified to comprise digital ghosting artifact based on values of the first similarity and the second similarity.
-
公开(公告)号：US09203679B2
公开(公告)日：2015-12-01
申请号：US13899807
申请日：2013-05-22
CPC分类号： H04L27/2698 , H04L27/263 , H04L27/2634 , H04L27/265
摘要： A low latency transmitter and receiver for an OFDM system are disclosed. The low latency transmitter includes an FFT module and a baseband modulator. The FFT module computes IDFT of PSK constellation data symbols or QAM constellation data symbols. The baseband modulator performs complex modulation of the IDFT samples by multiplying these samples with 1 and −1 alternatively in time domain. The low latency receiver includes a baseband demodulator and another FFT module. The baseband demodulator performs complex demodulation of the received samples of OFDM symbols by multiplying the samples of OFDM symbols with 1 and −1 alternatively in time domain thereby obtaining baseband demodulated symbols. The FFT module of the receiver computes DFT of samples of the baseband demodulated symbols to obtain samples of the OFDM demodulated symbols.
摘要翻译： 公开了一种用于OFDM系统的低延迟发射机和接收机。 低延迟发射机包括FFT模块和基带调制器。 FFT模块计算PSK星座数据符号或QAM星座数据符号的IDFT。 基带调制器通过在时域中将这些样本与1和-1相乘来进行IDFT采样的复数调制。 低延迟接收器包括基带解调器和另一个FFT模块。 基带解调器通过在时域中交替地将OFDM符号的样本乘以1和-1来进行OFDM符号的接收样本的复杂解调，从而获得基带解调符号。 接收机的FFT模块计算基带解调符号的样本的DFT，以获得OFDM解调符号的采样。
-
公开(公告)号：US08432976B2
公开(公告)日：2013-04-30
申请号：US12930640
申请日：2011-01-12
IPC分类号： H04N7/12
CPC分类号： H04N5/44 , H04N5/144 , H04N7/0115
摘要： The invention provides a method, system and computer program product for detecting field order of a video sequence. The method includes processing a top and bottom field picture of a first frame and a second frame, in which the first and second frames are consecutive frames of a video sequence. Difference frames are obtained by calculating the difference of the top and bottom field pictures of the first and second frames. Thereafter, field order is detected using the difference frames.
摘要翻译： 本发明提供一种用于检测视频序列的场顺序的方法，系统和计算机程序产品。 该方法包括处理第一帧和第二帧的顶部和底部场图像，其中第一帧和第二帧是视频序列的连续帧。 通过计算第一和第二帧的顶部和底部场图像的差异来获得差分帧。 此后，使用差分帧检测场顺序。
-
公开(公告)号：US07506229B2
公开(公告)日：2009-03-17
申请号：US11394990
申请日：2006-03-30
申请人： Akhtar Alam
发明人： Akhtar Alam
CPC分类号： G06F17/505
摘要： A method and system for optimizing an integrated circuit is described. The method includes generating (102) a characteristic table of the integrated circuit. The method further includes selecting (104) a functional module from one or more functional modules. Moreover, the method includes receiving (106) at least an input load or an output load, or both, corresponding to the functional module. Further still, the method includes calculating (108) size of a plurality of transistors in the functional module. The system includes a characteristic table generator (302) and an optimizer unit (304). The characteristic table generator (302) generates the characteristic table. The optimizer unit (304) selects the functional module from the one or more functional modules. The optimizer unit (302) further resizes the plurality of transistors in the functional module.
摘要翻译： 描述了一种用于优化集成电路的方法和系统。 该方法包括生成（102）集成电路的特性表。 该方法还包括从一个或多个功能模块中选择（104）功能模块。 此外，该方法包括至少接收（106）对应于功能模块的输入负载或输出负载或二者。 此外，该方法还包括计算功能模块中多个晶体管的尺寸（108）。 该系统包括特征表生成器（302）和优化器单元（304）。 特征表生成器（302）生成特征表。 优化器单元（304）从一个或多个功能模块中选择功能模块。 优化器单元（302）进一步调整功能模块中的多个晶体管的大小。
-
公开(公告)号：US20190385569A1
公开(公告)日：2019-12-19
申请号：US15908835
申请日：2018-03-01
申请人： ALOK KUMAR , BHUPENDER KUMAR , SHEKHAR MADNANI
发明人： ALOK KUMAR , BHUPENDER KUMAR , SHEKHAR MADNANI
摘要： A system and a method for adjusting luminance flashes in a video stream are disclosed. The method includes identifying a sequence of frames, having the luminance flashes, from the video stream. The sequence of frames is extended at both sides (start and end) based on a predefined threshold. The method further comprises dividing an extended sequence of frames into at least three segments. Further, the method includes determining a correction factor and a correction constant for each of the at least three segments. Thereafter, the method includes modifying luminance values of pixels of each of the at least three segments based on the correction factor and the correction constant, thereby adjusting the luminance flashes in the video stream.
-
6.发明授权公开(公告)号：US09161029B1
公开(公告)日：2015-10-13
申请号：US14323359
申请日：2014-07-03
发明人： Bhupender Kumar , Shekhar Madnani
CPC分类号： H04N17/02 , G06T5/005 , G06T5/50 , G06T7/0002 , G06T2207/10016 , G06T2207/10024 , G06T2207/30168
摘要： Systems and methods for detecting defective pixels in a video sequence having a plurality of frames, the method comprising determining one or more frames of a single scene and determining a plurality of buffers of each frame related to the single scene, detecting one or more candidate pixels for a first predefined number of frames, tracking the detected one or more candidate pixels for a second predetermined number of frames, validating the one or more candidate pixels for presence of defect and marking a candidate pixel from the one or more candidate pixels as a defective pixel based on one or more predefined conditions.
摘要翻译： 用于检测具有多个帧的视频序列中的缺陷像素的系统和方法，所述方法包括确定单个场景的一个或多个帧，并确定与单个场景相关的每个帧的多个缓冲器，检测一个或多个候选像素 对于第一预定数量的帧，对于第二预定数量的帧跟踪检测到的一个或多个候选像素，验证所述一个或多个候选像素以存在缺陷并将候选像素从所述一个或多个候选像素标记为缺陷 基于一个或多个预定条件的像素。
-
7.发明授权Method and apparatus for optimizing address generation for simultaneously running proximity-based BIST algorithms 有权用于优化地址生成的方法和装置，用于同时运行基于邻近度的BIST算法公开(公告)号：US08448030B2
公开(公告)日：2013-05-21
申请号：US12930082
申请日：2010-12-24
IPC分类号： H03M13/00
CPC分类号： G11C29/18 , G11C2029/3602
摘要： The invention discloses a method and a system for optimizing address generation for simultaneously running proximity-based Built-In-Self-Test (BIST) algorithms. The method also describes simultaneously testing proximity-based faults for different memories having column multiplexers of different sizes using the BIST algorithms. The system described above may be embodied in the form of a Built-In-Self-Test (BIST) controller. Further, the method includes selecting a memory having the largest size of column multiplexer (CMmax). After selecting the memory, size of an address-width register is extended to form an extended address-width register. Thereafter, an extended width address is generated using the extended address-width register and the extended width address is used to generate addresses for the memories. After generating the addresses, read and write operations are performed on the memories based on pre-defined rules, wherein the read and write operations provide testing of the memories.
摘要翻译： 本发明公开了一种用于优化地址产生的方法和系统，用于同时运行基于邻近度的内置自测（BIST）算法。 该方法还描述了使用BIST算法同时测试具有不同大小的列复用器的不同存储器的基于接近度的故障。 上述系统可以以内置自测（BIST）控制器的形式实现。 此外，该方法包括选择具有最大尺寸的列多路复用器（CMmax）的存储器。 选择存储器后，扩展地址宽度寄存器的大小，形成扩展地址宽度寄存器。 此后，使用扩展地址宽度寄存器生成扩展宽度地址，并且扩展宽度地址用于生成存储器的地址。 在产生地址之后，基于预定义的规则对存储器执行读取和写入操作，其中读取和写入操作提供对存储器的测试。
-
8.发明授权公开(公告)号：US08049817B2
公开(公告)日：2011-11-01
申请号：US12286798
申请日：2008-10-02
申请人： Shekhar Madnani , Shailesh Kumar
发明人： Shekhar Madnani , Shailesh Kumar
IPC分类号： H04N7/01
摘要： A method and system for calculating an interlace artifact in image data are disclosed. A motion picture of the image data comprises a series of frames, captured at a predefined interval of time. During processing of the motion picture, the frames are divided into fields, each field comprising one or more pixels. A difference between the pixels of the fields is calculated. Thereafter, edges of the pixels are calculated in the fields. The method and system then identify the focused area in the fields. To calculate the interlace artifact in the motion picture, the displacement of the focused area is calculated by using motion vectors. The artifacts are calculated as a ratio of a number of pixels based on motion vector calculation.
摘要翻译： 公开了一种用于计算图像数据中的隔行伪影的方法和系统。 图像数据的运动图像包括以预定的时间间隔捕获的一系列帧。 在运动图像的处理期间，帧被分成场，每个场包括一个或多个像素。 计算场的像素之间的差异。 此后，在场中计算像素的边缘。 然后，该方法和系统确定了该领域的重点领域。 为了计算运动图像中的交错伪影，通过使用运动矢量来计算聚焦区域的位移。 伪像被计算为基于运动矢量计算的像素数的比率。
-
公开(公告)号：US11094314B2
公开(公告)日：2021-08-17
申请号：US16746871
申请日：2020-01-18
发明人： Rohit Gupta , Niraj Sinha , Hemant Kumar Gangwar , Manik Gupta
摘要： A system and a method for detecting a simulated Emergency Alert Signal (EAS) are disclosed. The method includes detecting, by a first detector, one or more tones in a plurality of audio frames. Further, the method includes detecting, by a second detector, one or more beeps in the plurality of audio frames. Thereafter, the method includes detecting, by a third detector, at least one emergency word in the plurality of audio frames based at least on the detected one or more tones or the detected one or more beeps, and thereby detecting the simulated EAS.
-
公开(公告)号：US20210225359A1
公开(公告)日：2021-07-22
申请号：US16746871
申请日：2020-01-18
发明人： Rohit Gupta , Niraj Sinha , Hemant Kumar Gangwar , Manik Gupta
摘要： A system and a method for detecting a simulated Emergency Alert Signal (EAS) are disclosed. The method includes detecting, by a first detector, one or more tones in a plurality of audio frames. Further, the method includes detecting, by a second detector, one or more beeps in the plurality of audio frames. Thereafter, the method includes detecting, by a third detector, at least one emergency word in the plurality of audio frames based at least on the detected one or more tones or the detected one or more beeps, and thereby detecting the simulated EAS.
-
-
-
-
-
-
-
-
-
搜索结果
33 条记录 (耗时 0.011 秒)
