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Bird sounds possess distinctive spectral structure which may exhibit small shifts in spectrum depending on the bird species and environmental conditions. In this paper, we propose using convolutional recurrent neural networks on the task of…

Bird image segmentation remains a challenging task in computer vision due to extreme pose diversity, complex plumage patterns, and variable lighting conditions. This paper presents a dual-pipeline framework for binary bird image…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Abhinav Munagala

Research in bioacoustics, neuroscience, and linguistics often uses birdsong as a proxy to acquire knowledge across diverse areas. This requires audio models to annotate and parse the birdsong. Developing such models requires precise,…

Machine Learning · Computer Science 2026-05-20 Houtan Ghaffari , Lukas Rauch , Paul Devos

In this work, we present a method for learning interpretable music signal representations directly from waveform signals. Our method can be trained using unsupervised objectives and relies on the denoising auto-encoder model that uses a…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-02 Stylianos I. Mimilakis , Konstantinos Drossos , Gerald Schuller

Training deep networks for semantic segmentation requires large amounts of labeled training data, which presents a major challenge in practice, as labeling segmentation masks is a highly labor-intensive process. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Lukas Hoyer , Dengxin Dai , Qin Wang , Yuhua Chen , Luc Van Gool

Speech enhancement significantly improves the clarity and intelligibility of speech in noisy environments, improving communication and listening experiences. In this paper, we introduce a novel pretraining feature-guided diffusion model…

Sound · Computer Science 2024-06-13 Yiyuan Yang , Niki Trigoni , Andrew Markham

Dual-encoder Vision-Language Models (VLMs) such as CLIP are often characterized as bag-of-words systems due to their poor performance on compositional benchmarks. We argue that this limitation may stem less from deficient representations…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Imanol Miranda , Ander Salaberria , Eneko Agirre , Gorka Azkune

We conduct an investigation on various hyper-parameters regarding neural networks used to generate spectral envelopes for singing synthesis. Two perceptive tests, where the first compares two models directly and the other ranks models with…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-01 Frederik Bous , Axel Roebel

Separating different speaker properties from a multi-speaker environment is challenging. Instead of separating a two-speaker signal in signal space like speech source separation, a speaker embedding de-mixing approach is proposed. The…

Sound · Computer Science 2021-02-08 Yanpei Shi , Thomas Hain

Bird's-Eye-View (BEV) maps have emerged as one of the most powerful representations for scene understanding due to their ability to provide rich spatial context while being easy to interpret and process. Such maps have found use in many…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Nikhil Gosala , Abhinav Valada

Humans do not acquire perceptual abilities in the way we train machines. While machine learning algorithms typically operate on large collections of randomly-chosen, explicitly-labeled examples, human acquisition relies more heavily on…

Tracking segmentation masks of multiple instances has been intensively studied, but still faces two fundamental challenges: 1) the requirement of large-scale, frame-wise annotation, and 2) the complexity of two-stage approaches. To resolve…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Yang Fu , Sifei Liu , Umar Iqbal , Shalini De Mello , Humphrey Shi , Jan Kautz

The problem of source localization with ad hoc microphone networks in noisy and reverberant enclosures, given a training set of prerecorded measurements, is addressed in this paper. The training set is assumed to consist of a limited number…

Sound · Computer Science 2016-10-18 Bracha Laufer-Goldshtein , Ronen Talmon , Sharon Gannot

In ornithology, bird species are known to have variedit's widely acknowledged that bird species display diverse dialects in their calls across different regions. Consequently, computational methods to identify bird species onsolely through…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-14 Xin Jing , Luyang Zhang , Jiangjian Xie , Alexander Gebhard , Alice Baird , Bjoern Schuller

Supervised deep learning for semantic segmentation has achieved excellent results in accurately identifying anatomical and pathological structures in medical images. However, it often requires large annotated training datasets, which limits…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Luca Ciampi , Gabriele Lagani , Giuseppe Amato , Fabrizio Falchi

Unsupervised word segmentation in audio utterances is challenging as, in speech, there is typically no gap between words. In a preliminary experiment, we show that recent deep self-supervised features are very effective for word…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-04 Tzeviya Sylvia Fuchs , Yedid Hoshen

We consider the problem of training speech recognition systems without using any labeled data, under the assumption that the learner can only access to the input utterances and a phoneme language model estimated from a non-overlapping…

Audio and Speech Processing · Electrical Eng. & Systems 2018-12-27 Chih-Kuan Yeh , Jianshu Chen , Chengzhu Yu , Dong Yu

Automatic speaker diarization techniques typically involve a two-stage processing approach where audio segments of fixed duration are converted to vector representations in the first stage. This is followed by an unsupervised clustering of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-15 Prachi Singh , Sriram Ganapathy

Segmental models are sequence prediction models in which scores of hypotheses are based on entire variable-length segments of frames. We consider segmental models for whole-word ("acoustic-to-word") speech recognition, with the feature…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-25 Bowen Shi , Shane Settle , Karen Livescu

Maternal-fetal Ultrasound is the primary modality for monitoring fetal development, yet automated segmentation remains challenging due to the scarcity of high-quality annotations. To address this limitation, we propose a semi-supervised…

Image and Video Processing · Electrical Eng. & Systems 2025-09-09 Fangyijie Wang , Guénolé Silvestre , Kathleen M. Curran