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公开(公告)号：US09131163B2
公开(公告)日：2015-09-08
申请号：US13762101
申请日：2013-02-07
Applicant: STMicroelectronics S.r.l.
Inventor： Danilo Pietro Pau , Filippo Malaguti , Luigi Distefano , Samuele Salti , Federico Tombari
CPC classification number: H04N19/124 , G06K9/00523 , G06K9/00671 , G06K9/46 , G06K9/4671 , G06K9/6218 , H04N19/13 , H04N19/91
Abstract: Disclosed embodiments are directed to methods, systems, and circuits of generating compact descriptors for transmission over a communications network. A method according to one embodiment includes receiving an uncompressed descriptor, performing zero-thresholding on the uncompressed descriptor to generate a zero-threshold-delimited descriptor, quantizing the zero-threshold-delimited descriptor to generate a quantized descriptor, and coding the quantized descriptor to generate a compact descriptor for transmission over a communications network. The uncompressed and compact descriptors may be 3D descriptors, such as where the uncompressed descriptor is a SHOT descriptor. The operation of coding can be ZeroFlag coding, ExpGolomb coding, or Arithmetic coding, for example.
Abstract translation: 公开的实施例涉及生成用于通过通信网络传输的紧凑描述符的方法，系统和电路。 根据一个实施例的方法包括接收未压缩描述符，对未压缩描述符执行零阈值以生成零阈值分隔描述符，量化零阈值分隔描述符以生成量化描述符，并将量化描述符编码为 生成用于通过通信网络传输的紧凑描述符。 未压缩和紧凑的描述符可以是3D描述符，诸如未压缩描述符是SHOT描述符的位置。 例如，编码的操作可以是ZeroFlag编码，ExpGolomb编码或算术编码。
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公开(公告)号：US20140185949A1
公开(公告)日：2014-07-03
申请号：US13762101
申请日：2013-02-07
Applicant: STMicroelectronics S.r.l.
Inventor： Danilo Pietro Pau , Filippo Malaguti , Luigi Distefano , Samuele Salti , Federico Tombari
IPC: H04N19/124 , H04N19/102
CPC classification number: H04N19/124 , G06K9/00523 , G06K9/00671 , G06K9/46 , G06K9/4671 , G06K9/6218 , H04N19/13 , H04N19/91
Abstract: Disclosed embodiments are directed to methods, systems, and circuits of generating compact descriptors for transmission over a communications network. A method according to one embodiment includes receiving an uncompressed descriptor, performing zero-thresholding on the uncompressed descriptor to generate a zero-threshold-delimited descriptor, quantizing the zero-threshold-delimited descriptor to generate a quantized descriptor, and coding the quantized descriptor to generate a compact descriptor for transmission over a communications network. The uncompressed and compact descriptors may be 3D descriptors, such as where the uncompressed descriptor is a SHOT descriptor. The operation of coding can be ZeroFlag coding, ExpGolomb coding, or Arithmetic coding, for example.
Abstract translation: 公开的实施例涉及生成用于通过通信网络传输的紧凑描述符的方法，系统和电路。 根据一个实施例的方法包括接收未压缩描述符，对未压缩描述符执行零阈值以生成零阈值分隔描述符，量化零阈值分隔描述符以生成量化描述符，并将量化描述符编码为 生成用于通过通信网络传输的紧凑描述符。 未压缩和紧凑的描述符可以是3D描述符，诸如未压缩描述符是SHOT描述符的位置。 例如，编码的操作可以是ZeroFlag编码，ExpGolomb编码或算术编码。
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