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    • 82. 发明授权
    • Modified chroma keyed technique for simple shape coding for digital video
    • 用于数字视频简单形状编码的改进色度键控技术
    • US6122014A
    • 2000-09-19
    • US156790
    • 1998-09-17
    • Krit PanusoponeXuemin Chen
    • Krit PanusoponeXuemin Chen
    • H04N11/04H04N7/26H04N9/75H04N9/74
    • G06T9/20H04N19/20
    • An efficient chroma key-based coding technique for digital video with an optimized switching threshold. An optimized binary keying threshold is provided for switching between a first image region (such as a background region) and second image region (such as a foreground object) video picture. The threshold optimizes a PSNR of a quantization error Q of a key color K. A chroma key technique is also provided for representing the shape of a video object, where the shape information (alpha plane) of a foreground object is embedded in the keyed output, so there is no need to carry an explicit alpha plane, or use alpha plane coding. The chroma key shape representation technique provides a smooth transition at the boundary between objects without the need for special switching patterns, such as a general gray scale shape coding tool, or post-processing, e.g., using feathering filters.
    • 一种基于色度键的编码技术,具有优化的切换阈值的数字视频。 提供优化的二进制键控阈值用于在第一图像区域(例如背景区域)和第二图像区域(例如前景对象)视频图像之间切换。 阈值优化了键颜色K的量化误差Q的PSNR。还提供色度键技术来表示视频对象的形状,其中前景对象的形状信息(α平面)被嵌入到键控输出中 ,所以没有必要携带一个明确的alpha平面,或使用alpha平面编码。 色度键形状表示技术在对象之间的边界处提供平滑过渡,而不需要特殊的切换模式,例如通用灰度形状编码工具,或者后处理,例如使用羽化过滤器。
    • 83. 发明授权
    • Method and apparatus for fast motion estimation
    • 快速运动估计的方法和装置
    • US08798152B2
    • 2014-08-05
    • US12209173
    • 2008-09-11
    • Krit PanusoponeDavid M. BaylonWeiyao Lin
    • Krit PanusoponeDavid M. BaylonWeiyao Lin
    • H04N7/32
    • H04N19/567H04N19/557
    • Embodiments of the invention generally provide a method and apparatus for fast motion estimation. One embodiment of a method for motion estimation includes classifying a macroblock of a source frame in accordance with an initial matching cost, an intermediate matching cost, and a final matching cost, where the intermediate matching cost is estimated based on a predicted motion vector for the source frame and the final matching cost is estimated based on a final motion vector for a correlated macroblock in a prior frame, performing motion estimation for the macroblock based upon the classifying, wherein an early termination is applied in accordance with a result of the classifying, and outputting a motion vector for the macroblock based on a result of the motion estimation.
    • 本发明的实施例通常提供用于快速运动估计的方法和装置。 用于运动估计的方法的一个实施例包括根据初始匹配成本,中间匹配成本和最终匹配成本对源帧的宏块进行分类,其中基于预测的运动矢量来估计中间匹配成本 基于先前帧中的相关宏块的最终运动矢量来估计最终匹配成本,并基于分类对宏块执行运动估计,其中根据分类结果应用提前终止, 并且基于运动估计的结果输出用于所述宏块的运动矢量。
    • 89. 发明申请
    • CODING AND DECODING UTILIZING PICTURE BOUNDARY PADDING IN FLEXIBLE PARTITIONING
    • 编码和解码在灵活分割中利用图像边界贴图
    • US20120082216A1
    • 2012-04-05
    • US13247190
    • 2011-09-28
    • Limin WangXue FangKrit Panusopone
    • Limin WangXue FangKrit Panusopone
    • G06K9/46H04N7/26
    • H04N19/14H04N19/119H04N19/172H04N19/46H04N19/70H04N19/96
    • There is a coding including-preparing coding units based on source pictures. The coding units are associated with largest coding tree units (LCTUs) which are polygons of source pictures. A tree format is utilized in processing the LCTUs into coding units. The preparing includes calculating an efficiency measure associated with a source picture position in a coordinate system based on fitting the coordinate system and the source picture with respect to each other. The preparing includes determining the source picture position based on a coding efficiency goal. The preparing includes determining padding areas. The source picture and padding areas are divided into LCTUs based on the coordinate system and the determined source picture position. The LCTUs are partitioned into coding units based on the tree format and a homogeneity rule. There is also a decoding including processing video compression data which is generated based on the coding units.
    • 存在基于源图像的编码包括准备编码单元。 编码单元与作为源图像的多边形的最大编码树单元(LCTU)相关联。 利用树形格式将LCTU处理成编码单元。 准备包括基于将坐标系和源图像相对于彼此拟合来计算与坐标系中的源图像位置相关联的效率测量。 准备包括基于编码效率目标来确定源图像位置。 准备包括确定填充区域。 源图像和填充区域根据坐标系和确定的源图像位置分为LCTU。 基于树格式和均匀性规则将LCTU划分为编码单元。 还包括处理基于编码单元生成的视频压缩数据的解码。
    • 90. 发明申请
    • PATHWAY INDEXING IN FLEXIBLE PARTITIONING
    • 路线指向灵活分区
    • US20110274176A1
    • 2011-11-10
    • US13101809
    • 2011-05-05
    • Krit PanusoponeLimin Wang
    • Krit PanusoponeLimin Wang
    • H04N7/26
    • H04N19/61G06T9/20H04N19/50
    • There is a processing of an incoming video signal into a compressed video bitstream. The processing includes determining indexed pathways of blocks in the incoming video signal. The processing also includes determining flexible partitioning of the blocks utilizing partitioning lines. The partitioning lines are based on index units in the determined indexed pathways. The processing also includes generating PIFP information associated with the determined flexible partitioning and encoding the generated PIFP information associated with the PIFP encoded video. Also, there is a processing of received PIFP encoded video utilizing received encoded PIFP information associated with the received PIFP encoded video.
    • 将输入视频信号处理成压缩视频比特流。 该处理包括确定输入视频信号中块的索引路径。 该处理还包括使用划分线确定块的灵活划分。 划分线基于确定的索引路径中的索引单位。 该处理还包括生成与所确定的灵活分区相关联的PIFP信息,并对与PIFP编码视频相关联的生成的PIFP信息进行编码。 此外,利用与所接收的PIFP编码视频相关联的接收的编码PIFP信息,处理接收的PIFP编码视频。