Invention Grant
- Patent Title: Efficient compact descriptors in visual search systems
- Patent Title (中): 在视觉搜索系统中有效的紧凑描述符
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Application No.: US13762101Application Date: 2013-02-07
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Publication No.: US09131163B2Publication Date: 2015-09-08
- Inventor: Danilo Pietro Pau , Filippo Malaguti , Luigi Distefano , Samuele Salti , Federico Tombari
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Main IPC: G06K9/46
- IPC: G06K9/46 ; H04N19/124 ; G06K9/00 ; G06K9/62 ; 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.
Public/Granted literature
- US20140185949A1 EFFICIENT COMPACT DESCRIPTORS IN VISUAL SEARCH SYSTEMS Public/Granted day:2014-07-03
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