一种图片搜索方法及系统

唐博; 杨航

唐博

深圳市数极科技有限公司

深圳市数极科技有限公司

518057 广东省深圳市南山区高新技术产业园南区粤兴一道18号309B

南方科技大学

518000 广东省深圳市南山区学苑大道1088号 (广东,深圳,南山区)

南方科技大学

518000 广东省深圳市南山区学苑大道1088号 (广东,深圳,南山区)

CN201610300183.8

2016-05-09

CN105930499B

2019-11-22

2019-11-22

授权 ; 权利转移

2019-11-22

授权发明

非南科大

本发明适用计算机技术领域，提供了一种图片搜索方法及系统，该方法包括：接收用户提交的图片查询样本，提取所述图片查询样本的特征向量，在索引结构中检索所述特征向量，以得到关联的候选者标识，在预先构建的缓存直方图中查找与所述候选者标识对应的图片候选者的近似特征向量，计算所述图片查询样本的特征向量和所述近似特征向量之间的距离，当所述距离小于第一预设阈值时，将所述图片候选者确定为检索结果并输出所述候选者标识，当所述距离大于第二预设阈值时，丢弃所述关联的候选者标识，从而大大提高了图片检索效率，同时降低了对检索系统的缓存需求。

The invention is applied to the technical field of computers, and provides an image searching method and system. The method comprises the following steps of: receiving an image inquiry sample submitted by a user, extracting a characteristic vector of the image inquiry sample, retrieving the characteristic vector in an index structure so as to obtain a related candidate identifier, searching an approximate characteristic vector of an image candidate corresponding to the candidate identifier from a pre-constructed cache histogram, calculating the distance between the characteristic vector of the image inquiry sample and the approximate characteristic vector, if the distance is less than a first pre-set threshold value, determining the image candidate as a retrieved result and outputting the candidate identifier, and, if the distance is greater than a second pre-set threshold value, abandoning the associated candidate identifier. The image retrieving efficiency is greatly increased; and simultaneously, cache demands for a retrieving system are reduced.

G06F16/5838

G06F16/58

（TRANSFER OF PATENT RIGHT）[2020-07-14][CN]

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傅俏梅

深圳青年人专利商标代理有限公司

PatSnap

唐博,杨航. 一种图片搜索方法及系统[P]. 2019-11-22.