公开(公告)号：US10007680B2

公开(公告)日：2018-06-26

申请号：US14605669

申请日：2015-01-26

Applicant: A9.com, Inc.

Inventor： Arnab Sanat Kumar Dhua ,  Sunil Ramesh ,  Max Delgadillo ,  Raghavan Manmatha

IPC: G06F17/30 ,  G06K9/46 ,  G06K9/62

CPC classification number: G06F16/5838 ,  G06F16/2468 ,  G06F16/583 ,  G06F16/5854 ,  G06F16/9535 ,  G06K9/46 ,  G06K9/6203

Abstract: Systems and approaches for searching a content collection corresponding to query content are provided. In particular, false positive match rates between the query content and the content collection may be reduced with a minimum content region test and/or a minimum features per scale test. For example, by correlating content descriptors of a content piece in the content collection with query descriptors of the query content, the content piece can be determined to match the query content when a particular region of the content piece and/or a particular region of a query descriptor have a proportionate size meeting or exceeding a specified minimum. Alternatively, or in addition, the false positive match rate between query content and a content piece can be reduced by comparing content descriptors and query descriptors of features at a plurality of scales. A content piece can be determined to match the query content according to descriptor proportion quotas for the plurality of scales.

公开(公告)号：US20150213061A1

公开(公告)日：2015-07-30

申请号：US14605669

申请日：2015-01-26

Applicant: A9.com, Inc.

Inventor： Arnab Sanat Kumar Dhua ,  Sunil Ramesh ,  Max Delgadillo ,  Raghavan Manmatha

IPC: G06F17/30

CPC classification number: G06F17/30256 ,  G06F17/30247 ,  G06F17/30259 ,  G06F17/30542 ,  G06F17/30867 ,  G06K9/46 ,  G06K9/6203

Abstract: Systems and approaches for searching a content collection corresponding to query content are provided. In particular, false positive match rates between the query content and the content collection may be reduced with a minimum content region test and/or a minimum features per scale test. For example, by correlating content descriptors of a content piece in the content collection with query descriptors of the query content, the content piece can be determined to match the query content when a particular region of the content piece and/or a particular region of a query descriptor have a proportionate size meeting or exceeding a specified minimum. Alternatively, or in addition, the false positive match rate between query content and a content piece can be reduced by comparing content descriptors and query descriptors of features at a plurality of scales. A content piece can be determined to match the query content according to descriptor proportion quotas for the plurality of scales.

Abstract translation: 提供了用于搜索与查询内容相对应的内容集合的系统和方法。 特别地，可以通过最小内容区域测试和/或每个比例测试的最小特征来减少查询内容和内容收集之间的假阳性匹配率。 例如，通过将内容集合中的内容片段的内容描述符与查询内容的查询描述符相关联，可以确定内容片段与内容片段的特定区域和/或内容片段的特定区域 查询描述符的比例大小满足或超过规定的最小值。 或者或另外，通过比较多个尺度的特征的内容描述符和查询描述符，可以减少查询内容与内容片段之间的假正匹配率。 可以根据多个尺度的描述符比例配额来确定内容片段以匹配查询内容。