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1. 发明授权

US07885456B2 Symbol graph generation in handwritten mathematical expression recognition 有权
标题翻译：手写数学表达式识别中的符号图生成
公开(公告)号：US07885456B2
公开(公告)日：2011-02-08
申请号：US11693299
申请日：2007-03-29
申请人： Yu Shi , Frank Kao-Ping Soong , Jian-Iai Zhou , Dongmei Zhang, legal representative
发明人： Yu Shi , Frank Kao-Ping Soong , Jian-Iai Zhou
IPC分类号： G06K9/00
CPC分类号： G06K9/6296 , G06K2209/01
摘要： A forward pass through a sequence of strokes representing a handwritten equation is performed from the first stroke to the last stroke in the sequence. At each stroke, a path score is determined for a plurality of symbol-relation pairs that each represents a symbol and its spatial relation to a predecessor symbol. A symbol graph having nodes and links is constructed by backtracking through the strokes from the last stroke to the first stroke and assigning scores to the links based on the path scores for the symbol-relation pairs. The symbol graph is used to recognize a mathematical expression based in part on the scores for the links and the mathematical expression is stored.
摘要翻译：从序列中的第一行程到最后一个行程执行表示手写方程的笔画序列的向前传递。在每个笔划处，确定多个符号 - 关系对的路径分数，每个符号 - 关系对都表示符号及其与前身符号的空间关系。具有节点和链接的符号图是通过从最后笔划到第一笔划的笔画回溯构成的，并且基于符号 - 关系对的路径得分将分数分配给链接。符号图用于部分地基于链接的分数来识别数学表达式，并存储数学表达式。

2. 发明授权

US07680657B2 Auto segmentation based partitioning and clustering approach to robust endpointing 失效
标题翻译：基于自动分割的分区和聚类方法进行鲁棒终点
公开(公告)号：US07680657B2
公开(公告)日：2010-03-16
申请号：US11504280
申请日：2006-08-15
申请人： Yu Shi , Frank Kao-ping Soong , Jian-Iai Zhou
发明人： Yu Shi , Frank Kao-ping Soong , Jian-Iai Zhou
IPC分类号： G10L15/04 , G10L15/20 , G10L15/00
CPC分类号： G10L25/87
摘要： Possible segmentations for an audio signal are scored based on distortions for feature vectors of the audio signal and the total number of segments in the segmentation. The scores are used to select a segmentation and the selected segmentation is used to identify a starting point and an ending point for a speech signal in the audio signal.
摘要翻译：基于音频信号的特征向量的失真和分段中的段的总数，对音频信号进行可能的分割。分数用于选择分割，并且所选择的分割用于识别音频信号中的语音信号的起始点和终点。

3. 发明申请

US20120191456A1 POSITION-DEPENDENT PHONETIC MODELS FOR RELIABLE PRONUNCIATION IDENTIFICATION 有权
标题翻译：用于可靠发信标识的位置相关电话模型
公开(公告)号：US20120191456A1
公开(公告)日：2012-07-26
申请号：US13364144
申请日：2012-02-01
申请人： Peng Liu , Yu Shi , Frank Kao-ping Soong
发明人： Peng Liu , Yu Shi , Frank Kao-ping Soong
IPC分类号： G10L15/04
CPC分类号： G10L15/187 , G10L15/183
摘要： A representation of a speech signal is received and is decoded to identify a sequence of position-dependent phonetic tokens wherein each token comprises a phone and a position indicator that indicates the position of the phone within a syllable.
摘要翻译：语音信号的表示被接收并且被解码以识别位置依赖语音令牌的序列，其中每个令牌包括电话和位置指示符，其指示电话在音节内的位置。

4. 发明申请

US20080240570A1 SYMBOL GRAPH GENERATION IN HANDWRITTEN MATHEMATICAL EXPRESSION RECOGNITION 有权
标题翻译：手工数学表达识别中的符号图生成
公开(公告)号：US20080240570A1
公开(公告)日：2008-10-02
申请号：US11693299
申请日：2007-03-29
申请人： Yu Shi , Frank Kao-Ping Soong , Jian-lai Zhou , Dongmei Zhang
发明人： Yu Shi , Frank Kao-Ping Soong , Jian-lai Zhou , Dongmei Zhang
IPC分类号： G06K9/00
CPC分类号： G06K9/6296 , G06K2209/01
摘要： A forward pass through a sequence of strokes representing a handwritten equation is performed from the first stroke to the last stroke in the sequence. At each stroke, a path score is determined for a plurality of symbol-relation pairs that each represents a symbol and its spatial relation to a predecessor symbol. A symbol graph having nodes and links is constructed by backtracking through the strokes from the last stroke to the first stroke and assigning scores to the links based on the path scores for the symbol-relation pairs. The symbol graph is used to recognize a mathematical expression based in part on the scores for the links and the mathematical expression is stored.
摘要翻译：从序列中的第一行程到最后一个行程执行表示手写方程的笔画序列的向前传递。在每个笔划处，确定多个符号 - 关系对的路径分数，每个符号 - 关系对都表示符号及其与前身符号的空间关系。具有节点和链接的符号图是通过从最后笔划到第一笔划的笔画回溯构成的，并且基于符号 - 关系对的路径得分将分数分配给链接。符号图用于部分地基于链接的分数来识别数学表达式，并存储数学表达式。

5. 发明申请

US20080189109A1 Segmentation posterior based boundary point determination 审中-公开
标题翻译：分段后验边界点确定
公开(公告)号：US20080189109A1
公开(公告)日：2008-08-07
申请号：US11702373
申请日：2007-02-05
申请人： Yu Shi , Frank Kao-Ping Soong
发明人： Yu Shi , Frank Kao-Ping Soong
IPC分类号： G10L15/00
CPC分类号： G10L15/04
摘要： Boundary points for speech in an audio signal are determined based on posterior probabilities for the boundary points given a set of possible segmentations of the audio signal. The boundary point posterior probability is determined based on a set of level posterior probabilities that each provide the probability of a sequence of feature vectors given one of the segmentations in the set of possible segmentations.
摘要翻译：基于给定一组可能的音频信号分段的边界点的后验概率来确定音频信号中的语音的边界点。基于一组级别后验概率来确定边界点后验概率，每组提供一组特征向量的概率，该特征向量在可能的分段集合中给出一个分段。

6. 发明申请

US20080059169A1 Auto segmentation based partitioning and clustering approach to robust endpointing 失效
标题翻译：基于自动分割的分区和聚类方法进行鲁棒终点
公开(公告)号：US20080059169A1
公开(公告)日：2008-03-06
申请号：US11504280
申请日：2006-08-15
申请人： Yu Shi , Frank Kao-ping Soong , Jian-lai Zhou
发明人： Yu Shi , Frank Kao-ping Soong , Jian-lai Zhou
IPC分类号： G10L15/20
CPC分类号： G10L25/87
摘要： Possible segmentations for an audio signal are scored based on distortions for feature vectors of the audio signal and the total number of segments in the segmentation. The scores are used to select a segmentation and the selected segmentation is used to identify a starting point and an ending point for a speech signal in the audio signal.
摘要翻译：基于音频信号的特征向量的失真和分段中的段的总数，对音频信号进行可能的分割。分数用于选择分割，并且所选择的分割用于识别音频信号中的语音信号的起始点和终点。

7. 发明授权

US08077975B2 Handwriting symbol recognition accuracy using speech input 失效
标题翻译：使用语音输入的手写符号识别精度
公开(公告)号：US08077975B2
公开(公告)日：2011-12-13
申请号：US12037095
申请日：2008-02-26
申请人： Lei Ma , Yu Shi , Frank Kao-ping Soong
发明人： Lei Ma , Yu Shi , Frank Kao-ping Soong
IPC分类号： G06K9/00 , G06K9/62 , G06K9/72 , G06F3/00 , G10L15/26 , G09G5/00
CPC分类号： G10L15/24 , G06K9/00409 , G06K9/00422
摘要： Described is a bimodal data input technology by which handwriting recognition results are combined with speech recognition results to improve overall recognition accuracy. Handwriting data and speech data corresponding to mathematical symbols are received and processed (including being recognized) into respective graphs. A fusion mechanism uses the speech graph to enhance the handwriting graph, e.g., to better distinguish between similar handwritten symbols that are often misrecognized. The graphs include nodes representing symbols, and arcs between the nodes representing probability scores. When arcs in the first and second graphs are determined to match one another, such as aligned in time and associated with corresponding symbols, the probability score in the second graph for that arc is used to adjust the matching probability score in the first graph. Normalization and smoothing may be performed to correspond the graphs to one another and to control the influence of one graph on the other.
摘要翻译：描述了一种双模数据输入技术，通过该技术，手写识别结果与语音识别结果相结合，以提高整体识别精度。对应于数学符号的手写数据和语音数据被接收并处理（包括被识别）到各个图中。融合机制使用语音图来增强手写图，例如更好地区分经常被误识别的类似的手写符号。这些图包括表示符号的节点和表示概率分数的节点之间的弧。当第一和第二图中的弧被确定为彼此匹配时，例如在时间上对齐并与对应符号相关联时，该弧的第二图中的概率分数用于调整第一图中的匹配概率得分。可以执行归一化和平滑以将图彼此对应并且控制一个图的影响。

8. 发明授权

US08135590B2 Position-dependent phonetic models for reliable pronunciation identification 有权
标题翻译：位置依赖语音模型，用于可靠的发音识别
公开(公告)号：US08135590B2
公开(公告)日：2012-03-13
申请号：US11652451
申请日：2007-01-11
申请人： Peng Liu , Yu Shi , Frank Kao-ping Soong
发明人： Peng Liu , Yu Shi , Frank Kao-ping Soong
IPC分类号： G10L15/28
CPC分类号： G10L15/187 , G10L15/183
摘要： A representation of a speech signal is received and is decoded to identify a sequence of position-dependent phonetic tokens wherein each token comprises a phone and a position indicator that indicates the position of the phone within a syllable.
摘要翻译：语音信号的表示被接收并且被解码以识别位置依赖语音令牌的序列，其中每个令牌包括电话和指示电话在音节内的位置的位置指示符。

9. 发明申请

US20090214117A1 HANDWRITING SYMBOL RECOGNITION ACCURACY USING SPEECH INPUT 失效
标题翻译：使用语音输入的手写符号识别精度
公开(公告)号：US20090214117A1
公开(公告)日：2009-08-27
申请号：US12037095
申请日：2008-02-26
申请人： Lei Ma , Yu Shi , Frank Kao-ping Soong
发明人： Lei Ma , Yu Shi , Frank Kao-ping Soong
IPC分类号： G10L15/00
CPC分类号： G10L15/24 , G06K9/00409 , G06K9/00422
摘要： Described is a bimodal data input technology by which handwriting recognition results are combined with speech recognition results to improve overall recognition accuracy. Handwriting data and speech data corresponding to mathematical symbols are received and processed (including being recognized) into respective graphs. A fusion mechanism uses the speech graph to enhance the handwriting graph, e.g., to better distinguish between similar handwritten symbols that are often misrecognized. The graphs include nodes representing symbols, and arcs between the nodes representing probability scores. When arcs in the first and second graphs are determined to match one another, such as aligned in time and associated with corresponding symbols, the probability score in the second graph for that arc is used to adjust the matching probability score in the first graph. Normalization and smoothing may be performed to correspond the graphs to one another and to control the influence of one graph on the other.
摘要翻译：描述了一种双模数据输入技术，通过该技术，手写识别结果与语音识别结果相结合，以提高整体识别精度。对应于数学符号的手写数据和语音数据被接收并处理（包括被识别）到各个图中。融合机制使用语音图来增强手写图，例如更好地区分经常被误识别的类似的手写符号。这些图包括表示符号的节点和表示概率分数的节点之间的弧。当第一和第二图中的弧被确定为彼此匹配时，例如在时间上对准并与对应符号相关联时，该弧的第二图中的概率分数用于调整第一图中的匹配概率分数。可以执行归一化和平滑以将图彼此对应并且控制一个图的影响。

10. 发明申请

US20100166314A1 Segment Sequence-Based Handwritten Expression Recognition 审中-公开
标题翻译：基于片段序列的手写表达识别
公开(公告)号：US20100166314A1
公开(公告)日：2010-07-01
申请号：US12346376
申请日：2008-12-30
申请人： Yu Shi , Frank Kao-Ping Soong
发明人： Yu Shi , Frank Kao-Ping Soong
IPC分类号： G06K9/00
CPC分类号： G06K9/00422 , G06K9/6296
摘要： Methods and apparatuses for generating, by a computing device configured to interpret a handwritten expression, a symbol graph to represent strokes associated with the handwritten expression, are described herein. The symbol graph may include nodes, each node corresponding to a combination of a stroke and a candidate symbol for that stroke. The computing device may also generate a segment graph based on the symbol graph by combining nodes associated with a same stroke if strokes of their preceding nodes are the same. Also the computing device may perform a structure analysis on at least a subset of segment sequences represented by the segment graph to determine hypotheses for the handwritten expression. In other embodiments, rather than generate a segment graph, the computing device may determine segment sequences by selecting a number of symbol sequences from the symbol graph and combining symbol sequences having the same segmentation.
摘要翻译：本文描述了通过被配置为解读手写表达式的计算设备来生成表示与手写表达式相关联的笔画的符号图形的方法和装置。符号图可以包括节点，每个节点对应于笔划的组合和该笔划的候选符号。如果其前面的节点的笔划相同，则计算设备还可以通过组合与相同笔划相关联的节点来基于该符号图来生成片段图。此外，计算设备还可以对由片段图表示的段序列的至少一个子集进行结构分析，以确定手写表达式的假设。在其他实施例中，计算设备可以通过从符号图中选择符号序列的数目并组合具有相同分割的符号序列来确定段序列而不是生成段图。

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