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31. 发明申请

US20150016742A1 METHODS FOR COMPENSATING DECODING ERROR IN THREE-DIMENSIONAL MODELS 审中-公开
标题翻译：用于在三维模型中补偿解码错误的方法
公开(公告)号：US20150016742A1
公开(公告)日：2015-01-15
申请号：US14378334
申请日：2012-02-20
申请人： Kangying Cai , Wenfei Jiang , Tao Luo
发明人： Kangying Cai , Wenfei Jiang , Tao Luo
IPC分类号： G06T9/00
CPC分类号： G06T9/001 , G06T17/00 , G06T2207/10012 , G06T2210/08 , G06T2219/20 , H04N1/417
摘要： Encoders compress 3D images and compensate for decoding error using instance component decoders which decode instance components of the 3D image to generate decoded instance components, error calculation units which compare the decoded instance components with corresponding uncompressed instance components to calculate decoding errors, and determination units which determine if the encoded components pass a verification according to a threshold based on the decoding errors.
摘要翻译：编码器压缩3D图像并使用解码3D图像的实例组件的实例组件解码器来补偿解码错误，以生成解码的实例组件，将解码的实例组件与相应的未压缩实例组件进行比较以计算解码错误的误差计算单元，以及确定单元基于解码错误，确定编码的组件是否根据阈值通过验证。

32. 发明申请

US20140160241A1 SYSTEM AND METHOD FOR ENCODING AND DECODING A BITSTREAM FOR A 3D MODEL HAVING REPETITIVE STRUCTURE 审中-公开
标题翻译：用于编码和解码具有重复结构的3D模型的BITSTREAM的系统和方法
公开(公告)号：US20140160241A1
公开(公告)日：2014-06-12
申请号：US14131325
申请日：2012-07-06
申请人： Kangying Cai , Wenfei Jiang , Jiang Tian
发明人： Kangying Cai , Wenfei Jiang , Jiang Tian
IPC分类号： H04N13/00 , H04L29/06
CPC分类号： H04N13/161 , G06T9/001 , G06T9/004 , H04L65/607 , H04N19/20 , H04N19/66
摘要： Typically, 3D meshes are represented by three types of data: connectivity data, geometry data and property data. An encoded 3D mesh model can be represented, transmitted and/or stored as a bitstream. While the bitstream embeds all the transformation data, it is efficient and may address several applications, where sometimes either bitstream size or decoding efficiency or error resilience matters the most. Therefore, two mode options are disclosed for how to put the transformation data of one instance, i.e. its position, orientation and scaling factor, in the bitstream. In the first mode, the position, orientation and possible scaling factor of one instance are packed together in the bitstream. In the second mode, transformation data types, for example, the positions, orientations or possible scaling factors of all instances are packed together according to the data type in the bitstream.
摘要翻译：通常，3D网格由三种类型的数据表示：连接数据，几何数据和属性数据。可以将编码的3D网格模型表示，发送和/或存储为比特流。当比特流嵌入所有的变换数据时，它是有效的并且可以解决几个应用，其中有时位流大小或解码效率或错误恢复力最重要。因此，公开了两种模式选项，用于如何将一个实例的变换数据，即其位置，方向和缩放因子放在比特流中。在第一模式中，一个实例的位置，方向和可能的缩放因子在比特流中打包在一起。在第二模式中，根据比特流中的数据类型将所有实例的变换数据类型，例如位置，取向或可能的缩放因子打包在一起。

33. 发明申请

US20140146043A1 METHOD AND DEVICE FOR ENCODING AN ORIENTATION VECTOR OF A CONNECTED COMPONENT, CORRESPONDING DECODING METHOD AND DEVICE AND STORAGE MEDIUM CARRYING SUCH ENCODED DATA 审中-公开
标题翻译：用于编码连接组件的方向矢量的方法和设备，相应的解码方法和设备以及携带该编码数据的存储介质
公开(公告)号：US20140146043A1
公开(公告)日：2014-05-29
申请号：US14233595
申请日：2012-07-17
申请人： Wenfei Jiang , Kangying Cai , Jiang Tian
发明人： Wenfei Jiang , Kangying Cai , Jiang Tian
IPC分类号： G06T9/00
CPC分类号： G06T9/00 , G06T9/008 , H03M7/3082
摘要： The invention is made in the field of encoding and decoding at least one orientation vector of a connected component. When quantizing vector components for encoding, an acceptable quantization deviation of encoded vector components sometimes leads to unacceptable deviations of calculated vector components. Therefore, a method is proposed which comprises quantizing and de-quantizing a first and a second component of the vector, and encoding the quantized first and second component and a bit signalling the sign of a third component of said vector, using the pre-determined length and the de-quantized first and second component for determining whether a calculated absolute of an approximation of the third component of said vector is smaller than a first threshold, and, if the calculated absolute is smaller than the first threshold, determining, quantizing and encoding a residual between the calculated absolute of the third component and the absolute of the third component.
摘要翻译：本发明是在对连接部件的至少一个取向矢量进行编码和解码的领域中进行的。当量化用于编码的矢量分量时，编码矢量分量的可接受的量化偏差有时会导致计算出的矢量分量的不可接受的偏差。因此，提出了一种方法，其包括量化和解量化所述向量的第一和第二分量，以及使用所述预定义的信号对所述量化的第一和第二分量进行编码，以及向所述矢量的第三分量的信号发信号长度和去量化的第一和第二分量，用于确定计算的所述矢量的第三分量的绝对值的绝对值是否小于第一阈值，并且如果所计算的绝对值小于第一阈值，则确定，量化和编码计算的第三分量的绝对值与第三分量的绝对值之间的残差。

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