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The Ensemble Empirical Mode Decomposition (EEMD) has become a preferred technique to decompose nonlinear and non-stationary signals due to its ability to create time-varying basis functions. However, current EEMD signal cleaning techniques…

Signal Processing · Electrical Eng. & Systems 2022-08-29 Kentaro Hoffman , Jonathan M. Lees , Kai Zhang

Edge detection in images is the foundation of many complex tasks in computer graphics. Due to the feature loss caused by multi-layer convolution and pooling architectures, learning-based edge detection models often produce thick edges and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Qinghui Hong , Haoyou Jiang , Pingdan Xiao , Sichun Du , Tao Li

In 3D Referring Expression Segmentation (3D-RES), the earlier approach adopts a two-stage paradigm, extracting segmentation proposals and then matching them with referring expressions. However, this conventional paradigm encounters…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Changli Wu , Yiwei Ma , Qi Chen , Haowei Wang , Gen Luo , Jiayi Ji , Xiaoshuai Sun

Retrieving spoken content with spoken queries, or query-by- example spoken term detection (STD), is attractive because it makes possible the matching of signals directly on the acoustic level without transcribing them into text. Here, we…

Computation and Language · Computer Science 2018-04-30 Chia-Wei Ao , Hung-yi Lee

Traditional Shot Boundary Detection (SBD) inherently struggles with complex transitions by formulating the task around isolated cut points, frequently yielding corrupted video shots. We address this fundamental limitation by formalizing the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Ce Chen , Yi Ren , Yuanming Li , Viktor Goriachko , Zhenhui Ye , Zujin Guo , Zhibin Hong , Mingming Gong

Edge detection remains a fundamental yet challenging task in computer vision, especially under varying illumination, noise, and complex scene conditions. This paper introduces a Hybrid Multi-Stage Learning Framework that integrates…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Mark Phil Pacot , Jayno Juventud , Gleen Dalaorao

Sound event detection (SED) is essential for recognizing specific sounds and their temporal locations within acoustic signals. This becomes challenging particularly for on-device applications, where computational resources are limited. To…

Sound · Computer Science 2024-02-07 Yang Xiao , Rohan Kumar Das

Change-point detection methods are proposed for the case of temporary failures, or transient changes, when an unexpected disorder is ultimately followed by a readjustment and return to the initial state. A base distribution of the…

Statistics Theory · Mathematics 2021-12-14 Baron Michael , Malov Sergey

In this work we present a novel single-channel Voice Activity Detector (VAD) approach. We utilize a Convolutional Neural Network (CNN) which exploits the spatial information of the noisy input spectrum to extract frame-wise embedding…

Sound · Computer Science 2022-03-08 Amit Sofer , Shlomo E. Chazan

Data-driven models achieve successful results in Speech Emotion Recognition (SER). However, these models, which are often based on general acoustic features or end-to-end approaches, show poor performance when the testing set has a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-15 Duowei Tang , Peter Kuppens , Lucca Geurts , Toon van Waterschoot

Voice activity detection (VAD), which classifies frames as speech or non-speech, is an important module in many speech applications including speaker verification. In this paper, we propose a novel method, called self-adaptive soft VAD, to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-25 Youngmoon Jung , Yeunju Choi , Hoirin Kim

For sequential data, a change point is a moment of abrupt regime switch in data streams. Such changes appear in different scenarios, including simpler data from sensors and more challenging video surveillance data. We need to detect…

Machine Learning · Computer Science 2025-09-03 Evgenia Romanenkova , Alexander Stepikin , Matvey Morozov , Alexey Zaytsev

Query-by-example spoken term detection (QbE-STD) is typically constrained by transcribed data scarcity and language specificity. This paper introduces a novel, language-agnostic QbE-STD model leveraging image processing techniques and…

Machine Learning · Computer Science 2024-10-08 Allahdadi Fatemeh , Mahdian Toroghi Rahil , Zareian Hassan

Conventional automatic speech recognition systems do not produce punctuation marks which are important for the readability of the speech recognition results. They are also needed for subsequent natural language processing tasks such as…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-08 Jumon Nozaki , Tatsuya Kawahara , Kenkichi Ishizuka , Taiichi Hashimoto

Event cameras are bio-inspired sensors that capture intensity changes asynchronously with distinct advantages, such as high temporal resolution. Existing methods for event-based object/action recognition predominantly sample and convert…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Jiazhou Zhou , Kanghao Chen , Lei Zhang , Lin Wang

Deep neural network-based systems have significantly improved the performance of speaker diarization tasks. However, end-to-end neural diarization (EEND) systems often struggle to generalize to scenarios with an unseen number of speakers,…

Sound · Computer Science 2023-09-14 Zhengyang Chen , Bing Han , Shuai Wang , Yanmin Qian

The constant Q transform (CQT) has been shown to be one of the most effective speech signal pre-transforms to facilitate synthetic speech detection, followed by either hand-crafted (subband) constant Q cepstral coefficient (CQCC) feature…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-13 Guang Hua , Andrew Beng Jin Teoh , Haijian Zhang

Edge detection has long been an important problem in the field of computer vision. Previous works have explored category-agnostic or category-aware edge detection. In this paper, we explore edge detection in the context of object instances.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Xueyan Zou , Haotian Liu , Yong Jae Lee

Out-of-distribution (OOD) detection remains a critical challenge in open-world learning, where models must adapt to evolving data distributions. While recent vision-language models (VLMS) like CLIP enable multimodal OOD detection through…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Aditi Naiknaware , Salimeh Sekeh

DETR-based methods, which use multi-layer transformer decoders to refine object queries iteratively, have shown promising performance in 3D indoor object detection. However, the scene point features in the transformer decoder remain fixed,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Chuxin Wang , Wenfei Yang , Xiang Liu , Tianzhu Zhang