Fast and Accurate Deep Learning Model for Stamps Detection for Embedded Devices
Alexander V. Gayer, Daria Ershova, Vladimir V. Arlazarov · Pattern Recognition and Image Analysis · 2022
Abstract The search for stamps on images is necessary to verify the authenticity of a document and extract valuable textual information contained in them. Despite the vast number of methods for detecting stamps, most of them are not universal and are limited either by the characteristics of the stamp or by the computational complexity of the approach. The last criterion is extremely relevant, since document recognition is actively transferred from server solutions to mobile devices with low computing power and limited battery life. In view of this, in this paper we propose a compact and computationally efficient neural network model for searching for stamps of any shape and color. Based on the popular neural network detector YOLO, our model contains only 128 thousand parameters. We demonstrate the effectiveness of the model in an experiment on the public dataset SPODS (scanned pseudo-official dataset), containing high-resolution scans of documents with stamps.