no code implementations • 26 Mar 2024 • rintaro yanagi, Yamato Okamoto, Shuhei Yokoo, Shin'ichi Satoh
From the experimental results focusing on segment-level and video-level situations, we can see that three effects: "Segment-level VCD in short video-sharing services is more difficult than those in general video-sharing services", "Video-level VCD in short video-sharing services is easier than those in general video-sharing services", "The video alignment component mainly suppress the detection performance in short video-sharing services".
no code implementations • 23 Oct 2023 • Shuhei Yokoo, Peifei Zhu, Yuchi Ishikawa, Mikihiro Tanaka, Masayoshi Kondo, Hirokatsu Kataoka
Our solution adopts large multimodal models CLIP and BLIP-2 to filter and modify web crawl data, and utilize external datasets along with a bag of tricks to improve the data quality.
1 code implementation • 24 Apr 2023 • Shuhei Yokoo, Peifei Zhu, Junki Ishikawa, Rintaro Hasegawa
This paper presents our 3rd place solution in both Descriptor Track and Matching Track of the Meta AI Video Similarity Challenge (VSC2022), a competition aimed at detecting video copies.
no code implementations • 8 Feb 2022 • Zoë Papakipos, Giorgos Tolias, Tomas Jenicek, Ed Pizzi, Shuhei Yokoo, Wenhao Wang, Yifan Sun, Weipu Zhang, Yi Yang, Sanjay Addicam, Sergio Manuel Papadakis, Cristian Canton Ferrer, Ondrej Chum, Matthijs Douze
The 2021 Image Similarity Challenge introduced a dataset to serve as a new benchmark to evaluate recent image copy detection methods.
2 code implementations • 8 Dec 2021 • Shuhei Yokoo
Copy detection, which is a task to determine whether an image is a modified copy of any image in a database, is an unsolved problem.
2 code implementations • 25 Mar 2020 • Shuhei Yokoo, Kohei Ozaki, Edgar Simo-Serra, Satoshi Iizuka
Due to the variance of the images, which include extreme viewpoint changes such as having to retrieve images of the exterior of a landmark from images of the interior, this is very challenging for approaches based exclusively on visual similarity.
1 code implementation • 10 Jun 2019 • Kohei Ozaki, Shuhei Yokoo
Besides, we devise a discriminative re-ranking method to address the diversity of the dataset for landmark retrieval.