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1. 发明申请

US20190318452A1 ADVANCED DEMOSAICING WITH ANGLE COMPENSATION AND DEFECTIVE PIXEL CORRECTION 审中-公开
公开(公告)号：US20190318452A1
公开(公告)日：2019-10-17
申请号：US16453652
申请日：2019-06-26
申请人： Jong Dae Oh , Vijay Sundaram , Jingyang Xue , Yi-Jen Chiu
发明人： Jong Dae Oh , Vijay Sundaram , Jingyang Xue , Yi-Jen Chiu
IPC分类号： G06T3/40 , G06T7/90
摘要： Techniques related to demosaicing for digital image processing are discussed. Such techniques include correcting defective pixels by detecting hot and warm pixels and correcting such detected hot and warm pixels based on neighboring pixels and angle compensation including detecting dominant angles and compensating for such detected angles during demosaicing.

2. 发明申请

US20160037019A1 SEMI-FIXED-HUE GAMUT COMPRESSION 有权
标题翻译：半固定游隙压缩
公开(公告)号：US20160037019A1
公开(公告)日：2016-02-04
申请号：US14774652
申请日：2014-03-28
申请人： Jingyang XUE , Ya-TI PENG , Yi-Jen CHIU
发明人： Jingyang Xue , Ya-Ti Peng , Yi-Jen Chiu
IPC分类号： H04N1/60
CPC分类号： H04N1/6075 , H04N1/46 , H04N1/60 , H04N1/6061 , H04N2201/0089
摘要： One or more apparatus and method for compressing xvYCC or sRGB color to a narrower color gamut. Embodiments may be utilized in processing images/video image sequences provided in a wide gamut color space for display in standard RGB color space. In further embodiments, an sRGB or xvYCC compliant input is compressed to a gamut narrower than sRGB. Embodiments where a narrow output color gamut lacks a fully-defined 3D color space, semi-fixed-hue gamut compression may be performed by adjusting parameters provided to a fixed-hue compression module capable of mapping 3D color space representations between well-defined gamuts.
摘要翻译：一种或多种用于将xvYCC或sRGB颜色压缩到较窄色域的装置和方法。实施例可以用于处理在宽色域颜色空间中提供的用于在标准RGB颜色空间中显示的图像/视频图像序列。在另外的实施例中，将sRGB或xvYCC兼容输入压缩到比sRGB窄的范围。可以通过调整提供给能够在明确定义的色域之间映射3D色彩空间表示的固定色调压缩模块的参数来执行半输出色域缺乏完全限定的3D色彩空间的半固定色相色域压缩的实施例。

3. 发明申请

US20140355895A1 ADAPTIVE MOTION INSTABILITY DETECTION IN VIDEO 有权
标题翻译：视频中的自适应运动不稳定性检测
公开(公告)号：US20140355895A1
公开(公告)日：2014-12-04
申请号：US14218457
申请日：2014-03-18
申请人： Lidong Xu , Chen Wang , Yi-Jen Chiu , Jong Dae Oh , Heon-Mo Koo
发明人： Lidong Xu , Chen Wang , Yi-Jen Chiu , Jong Dae Oh , Heon-Mo Koo
IPC分类号： G06K9/62 , H04N5/232
CPC分类号： G06K9/6298 , H04N5/23267
摘要： One or more apparatus and method for adaptively detecting motion instability in video. In embodiments, video stabilization is predicated on adaptive detection of motion instability. Adaptive motion instability detection may entail determining an initial motion instability state associated with a plurality of video frames. Subsequent transitions of the instability state may be detected by comparing a first level of instability associated with a first plurality of the frames to a second level of instability associated with a second plurality of the frames. Image stabilization of received video frames may be toggled first based on the initial instability state, and thereafter based on detected changes in the instability state.Output video frames, which may be stabilized or non-stabilized, may then be stored to a memory. In certain embodiments, video motion instability is scored based on a probability distribution of video frame motion jitter values.
摘要翻译：一种或多种用于自适应地检测视频中的运动不稳定性的装置和方法。在实施例中，视频稳定基于运动不稳定性的自适应检测。自适应运动不稳定性检测可能需要确定与多个视频帧相关联的初始运动不稳定状态。可以通过将与第一多个帧相关联的不稳定性的第一级别与与第二多个帧相关联的第二级不稳定性进行比较来检测不稳定状态的后续转换。首先可以基于初始不稳定状态来切换所接收的视频帧的图像稳定性，然后基于检测到的不稳定状态的变化。然后可以将稳定或不稳定的输出视频帧存储到存储器中。在某些实施例中，基于视频帧运动抖动值的概率分布对视频运动不稳定性进行评分。

4. 发明申请

US20120257104A1 Detecting Video Formats 有权
标题翻译：检测视频格式
公开(公告)号：US20120257104A1
公开(公告)日：2012-10-11
申请号：US13083681
申请日：2011-04-11
申请人： Jong Dae Oh , Yi-Jen Chiu , Sang-Hee Lee , Ning Lu
发明人： Jong Dae Oh , Yi-Jen Chiu , Sang-Hee Lee , Ning Lu
IPC分类号： H04N7/01
CPC分类号： H04N7/0115
摘要： The format of telecined video may be determined including a bottom field first cadence. In addition, video using 2:3:3:2 top field first can be identified. Moreover, mixed cadence videos can also be detected. In some embodiments, mixed cadence videos may be detected by calculating variances of different areas within a frame.
摘要翻译：可以确定电视视频的格式，包括底场第一节奏。另外，可以首先识别使用2：3：3：2顶场的视频。此外，还可以检测到混合的节奏视频。在一些实施例中，可以通过计算帧内不同区域的方差来检测混合节奏视频。

5. 发明授权

US08405769B2 Methods and systems for short range motion compensation de-interlacing 有权
标题翻译：短距离运动补偿去隔行的方法和系统
公开(公告)号：US08405769B2
公开(公告)日：2013-03-26
申请号：US12644463
申请日：2009-12-22
申请人： Jong Dae Oh , Yi-Jen Chiu
发明人： Jong Dae Oh , Yi-Jen Chiu
IPC分类号： H04N7/01
CPC分类号： H04N7/012
摘要： Systems and methods for choosing whether to select either a spatial interpolation value or a motion compensation interpolation value for deinterlacing an interlaced frame. A minimal sum of absolute differences (SAD) may be determined for a current pixel. Depending on the magnitude of the minimal SAD relative to two threshold values, different checks may be applied. The outcome of the checks may determine whether the spatial interpolation value or the motion compensation interpolation value may be used in deinterlacing. Generally, the magnitude of the minimal SAD may determine the reliability of the SAD and the consequent trustworthiness of the associated motion vector (MV). Greater reliability of the minimal SAD may suggest that the motion compensation interpolation value may be used for purposes of deinterlacing. Less reliability in the minimal SAD may motivate additional checks to further evaluate whether the motion compensation interpolation value should be used. A less reliable minimal SAD and/or failure of some of the checks may suggest that the motion compensation interpolation value should not be used.
摘要翻译：用于选择是否选择空间插值或用于去隔行隔行帧的运动补偿内插值的系统和方法。可以为当前像素确定绝对差的最小和（SAD）。根据相对于两个阈值的最小SAD的大小，可以应用不同的检查。检查的结果可以确定空间内插值还是运动补偿内插值可以用于去隔行扫描。通常，最小SAD的幅度可以确定SAD的可靠性和相关联的运动矢量（MV）的随后的可信度。最小SAD的更高的可靠性可能表明运动补偿内插值可以用于去隔行扫描。最小SAD中的较低的可靠性可能会激发额外的检查，以进一步评估是否应使用运动补偿内插值。不太可靠的最小SAD和/或某些检查失败可能表明不应该使用运动补偿内插值。

6. 发明申请

US20110149151A1 METHODS AND SYSTEMS FOR SHORT RANGE MOTION COMPENSATION DE-INTERLACING 有权
标题翻译：短距离运动补偿去交织的方法和系统
公开(公告)号：US20110149151A1
公开(公告)日：2011-06-23
申请号：US12644463
申请日：2009-12-22
申请人： Jong Dae Oh , Yi-Jen Chiu
发明人： Jong Dae Oh , Yi-Jen Chiu
IPC分类号： H04N7/01
CPC分类号： H04N7/012
摘要： Systems and methods for choosing whether to select either a spatial interpolation value or a motion compensation interpolation value for deinterlacing an interlaced frame. A minimal sum of absolute differences (SAD) may be determined for a current pixel. Depending on the magnitude of the minimal SAD relative to two threshold values, different checks may be applied. The outcome of the checks may determine whether the spatial interpolation value or the motion compensation interpolation value may be used in deinterlacing. Generally, the magnitude of the minimal SAD may determine the reliability of the SAD and the consequent trustworthiness of the associated motion vector (MV). Greater reliability of the minimal SAD may suggest that the motion compensation interpolation value may be used for purposes of deinterlacing. Less reliability in the minimal SAD may motivate additional checks to further evaluate whether the motion compensation interpolation value should be used. A less reliable minimal SAD and/or failure of some of the checks may suggest that the motion compensation interpolation value should not be used.
摘要翻译：用于选择是否选择空间插值或用于去隔行隔行帧的运动补偿内插值的系统和方法。可以为当前像素确定绝对差的最小和（SAD）。根据相对于两个阈值的最小SAD的大小，可以应用不同的检查。检查的结果可以确定空间内插值还是运动补偿内插值可以用于去隔行扫描。通常，最小SAD的幅度可以确定SAD的可靠性和相关联的运动矢量（MV）的随后的可信度。最小SAD的更高的可靠性可能表明运动补偿内插值可以用于去隔行扫描。最小SAD中的较低的可靠性可能会激发额外的检查，以进一步评估是否应使用运动补偿内插值。不太可靠的最小SAD和/或某些检查失败可能表明不应该使用运动补偿内插值。

7. 发明授权

US09148620B2 Detecting video formats 有权
标题翻译：检测视频格式
公开(公告)号：US09148620B2
公开(公告)日：2015-09-29
申请号：US13083681
申请日：2011-04-11
申请人： Jong Dae Oh , Yi-Jen Chiu , Sang-Hee Lee , Ning Lu
发明人： Jong Dae Oh , Yi-Jen Chiu , Sang-Hee Lee , Ning Lu
IPC分类号： H04N7/01
CPC分类号： H04N7/0115
摘要： The format of telecined video may be determined including a bottom field first cadence. In addition, video using 2:3:3:2 top field first can be identified. Moreover, mixed cadence videos can also be detected. In some embodiments, mixed cadence videos may be detected by calculating variances of different areas within a frame.
摘要翻译：可以确定电视视频的格式，包括底场第一节奏。另外，可以首先识别使用2：3：3：2顶场的视频。此外，还可以检测到混合的节奏视频。在一些实施例中，可以通过计算帧内不同区域的方差来检测混合节奏视频。

8. 发明申请

US20140146890A1 SYSTEM AND METHOD FOR ENHANCED DMVD PROCESSING 有权
标题翻译：用于增强DMVD处理的系统和方法
公开(公告)号：US20140146890A1
公开(公告)日：2014-05-29
申请号：US13996582
申请日：2010-12-21
申请人： Yi-Jen Chiu , Yi-Jen Chiu , Wenhao Zhang , Hong Jiang
发明人： Yi-Jen Chiu , Yi-Jen Chiu , Wenhao Zhang , Hong Jiang
IPC分类号： H04N19/51 , H04N19/436
CPC分类号： H04N19/513 , H04N19/436 , H04N19/44
摘要： To let decoder side motion vector derivation (DMVD) coded blocks be decoded in parallel, decoder side motion estimation (ME) dependency on spatially neighboring reconstructed pixels can be removed. Mirror ME and projective ME are only performed on two reference pictures, and the spatially neighboring reconstructed pixels will not be considered in the measurement metric of the decoder side ME. Also, at a video decoder, motion estimation for a target block in a current picture can be performed by calculating a motion vector for a spatially neighboring DMVD block, using the calculated motion vector to predict motion vectors of neighboring blocks of the DMVD block, and decoding the DMVD block and the target block in parallel. In addition, determining a best motion vector for a target block in a current picture can be performed by searching only candidate motion vectors in a search window, wherein candidate motion vectors are derived from a small range motion search around motion vectors of neighboring blocks.
摘要翻译：为了使解码器侧运动矢量导出（DMVD）编码块并行解码，可以去除对空间相邻的重建像素的解码器侧运动估计（ME）依赖性。镜像ME和投影ME仅在两个参考图像上执行，并且在解码器侧ME的测量度量中将不考虑空间相邻的重建像素。此外，在视频解码器中，可以使用所计算的运动矢量来计算当前图像中的目标块的运动估计，以通过计算空间相邻的DMVD块的运动矢量来预测DMVD块的相邻块的运动矢量，以及对DMVD块和目标块进行并行解码。此外，通过仅在搜索窗口中仅搜索候选运动矢量来执行确定当前图片中的目标块的最佳运动矢量，其中，从围绕相邻块的运动矢量的小范围运动搜索导出候选运动矢量。

9. 发明授权

US10979703B2 Adaptive filtering for scalable video coding 有权
公开(公告)号：US10979703B2
公开(公告)日：2021-04-13
申请号：US13991606
申请日：2012-06-15
申请人： Lidong Xu , Wenhao Zhang , Yi-Jen Chiu , Hong Jiang , Yu Han
发明人： Lidong Xu , Wenhao Zhang , Yi-Jen Chiu , Hong Jiang , Yu Han
IPC分类号： H04N19/66 , H04N19/105 , H04N19/187 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/154 , H04N19/463 , H04N19/33
摘要： In a scalable video codec, an adaptive Wiener filter with offset aims to minimize the differences between two input pictures or picture regions, and the filter coefficients need to be transmitted to decoder site.

10. 发明授权

US09591326B2 Power efficient motion estimation techniques for video encoding 有权
标题翻译：用于视频编码的功率有效的运动估计技术
公开(公告)号：US09591326B2
公开(公告)日：2017-03-07
申请号：US13638628
申请日：2010-03-31
申请人： Lidong Xu , Yi-Jen Chiu , Hong Jiang
发明人： Lidong Xu , Yi-Jen Chiu , Hong Jiang
IPC分类号： H04N19/53 , H04N19/30 , H04N19/187 , H04N19/37 , H04N19/33 , H04N19/57 , H04N19/105 , H04N19/174 , H04N19/61 , H04N19/176 , H04N19/573 , H04N19/109
CPC分类号： H04N19/53 , H04N19/105 , H04N19/109 , H04N19/174 , H04N19/176 , H04N19/187 , H04N19/30 , H04N19/33 , H04N19/37 , H04N19/57 , H04N19/573 , H04N19/61
摘要： Adaptive control can use hierarchical motion estimation (HME) and/or multiple reference motion estimation (MRME) for the motion estimation of current encoding blocks. Both HME and MRME are allowed in the motion estimation to achieve a high coding gain. Control consists of slice level control and macro-block (MB) level control. A slice is one or more contiguous macroblocks. In slice level control, it is decided to use only one reference frame or use multiple reference frames to coding current slice based on the motion vectors obtained in coarse level motion estimation. In MB level control, it is decided to perform MRME or perform HME for the MB and its subblocks based on the coarse level motion vectors of the MB.
摘要翻译：自适应控制可以对当前编码块的运动估计使用分层运动估计（HME）和/或多参考运动估计（MRME）。在运动估计中允许HME和MRME两者实现高编码增益。控制由片级控制和宏块（MB）级控制组成。切片是一个或多个连续的宏块。在片级控制中，决定仅使用一个参考帧或者使用多个参考帧来基于在粗略级运动估计中获得的运动矢量对当前片进行编码。在MB级别控制中，决定执行MRME或基于MB的粗略级别运动向量对MB及其子块执行HME。

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