Search Results for author: Masato Tamura

Found 6 papers, 1 papers with code

Design and Analysis of Efficient Attention in Transformers for Social Group Activity Recognition

no code implementations15 Apr 2024 Masato Tamura

Social group activity recognition is a challenging task extended from group activity recognition, where social groups must be recognized with their activities and group members.

Group Activity Recognition

Random Word Data Augmentation with CLIP for Zero-Shot Anomaly Detection

no code implementations22 Aug 2023 Masato Tamura

Using the generated embeddings as training data, a feed-forward neural network learns to extract features of normal and anomaly from CLIP's embeddings, and as a result, a category-agnostic anomaly detector can be obtained without any training images.

Anomaly Detection Data Augmentation +2

Hunting Group Clues with Transformers for Social Group Activity Recognition

no code implementations12 Jul 2022 Masato Tamura, Rahul Vishwakarma, Ravigopal Vennelakanti

Our method is designed in such a way that the attention modules identify and then aggregate features relevant to social group activities, generating an effective feature for each social group.

 Ranked #1 on Group Activity Recognition on Collective Activity (using extra training data)

Group Activity Recognition

Segmentation-Based Bounding Box Generation for Omnidirectional Pedestrian Detection

no code implementations28 Apr 2021 Masato Tamura, Tomoaki Yoshinaga

We propose a segmentation-based bounding box generation method for omnidirectional pedestrian detection that enables detectors to tightly fit bounding boxes to pedestrians without omnidirectional images for training.

object-detection Object Detection +1

Augmented Hard Example Mining for Generalizable Person Re-Identification

no code implementations11 Oct 2019 Masato Tamura, Tomokazu Murakami

Although the performance of person re-identification (Re-ID) has been much improved by using sophisticated training methods and large-scale labelled datasets, many existing methods make the impractical assumption that information of a target domain can be utilized during training.

General Classification Generalizable Person Re-identification

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