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Composite sketch recognition via deep network - a transfer learning approach

机译:通过深度网络进行合成草图识别-一种转移学习方法

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Sketch recognition is one of the integral components used by law enforcement agencies in solving crime. In recent past, software generated composite sketches are being preferred as they are more consistent and faster to construct than hand drawn sketches. Matching these composite sketches to face photographs is a complex task because the composite sketches are drawn based on the witness description and lack minute details which are present in photographs. This paper presents a novel algorithm for matching composite sketches with photographs using transfer learning with deep learning representation. In the proposed algorithm, first the deep learning architecture based facial representation is learned using large face database of photos and then the representation is updated using small problem-specific training database. Experiments are performed on the extended PRIP database and it is observed that the proposed algorithm outperforms recently proposed approach and a commercial face recognition system.
机译:草图识别是执法机构用于解决犯罪的不可或缺的组成部分之一。在最近的过去,软件生成的合成草图是首选的,因为它们比手工绘制的草图更一致且构建起来更快。将这些合成草图与面部照片相匹配是一项复杂的任务,因为这些合成草图是根据见证人的描述绘制的,并且缺少照片中存在的微小细节。本文提出了一种新的算法,该算法使用带有深度学习表示的转移学习,将合成草图与照片进行匹配。在提出的算法中,首先使用大型的人脸照片数据库来学习基于深度学习架构的人脸表示,然后使用针对特定问题的小型训练数据库来更新人脸表示。在扩展的PRIP数据库上进行了实验,发现该算法优于最近提出的方法和商用人脸识别系统。

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