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With rising male infertility, sperm head morphology classification becomes critical for accurate and timely clinical diagnosis. Recent deep learning (DL) morphology analysis methods achieve promising benchmark results, but leave performance…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Yejia Zhang , Jingjing Zhang , Xiaomin Zha , Yiru Zhou , Yunxia Cao , Danny Z. Chen

Infertility is a global health problem, and an increasing number of couples are seeking medical assistance to achieve reproduction, at least half of which are caused by men. The success rate of assisted reproductive technologies depends on…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Takuro Fujii , Hayato Nakagawa , Teppei Takeshima , Yasushi Yumura , Tomoki Hamagami

Automated sperm morphology analysis plays a crucial role in the assessment of male fertility, yet its efficacy is often compromised by the challenges in accurately segmenting sperm images. Existing segmentation techniques, including the…

Image and Video Processing · Electrical Eng. & Systems 2024-07-10 Yi Shi , Xu-Peng Tian , Yun-Kai Wang , Tie-Yi Zhang , Bin Yao , Hui Wang , Yong Shao , Cen-Cen Wang , Rong Zeng , De-Chuan Zhan

Traditional sperm morphology analysis is based on tedious manual annotation. Automated morphology analysis of a high number of sperm requires accurate segmentation of each sperm part and quantitative morphology evaluation. State-of-the-art…

Assessment of sperm morphological quality remains a critical yet subjective component of male fertility evaluation, often limited by inter-observer variability and resource constraints. This study presents a comparative biomedical…

Machine Learning · Computer Science 2026-01-16 Mohammad Abbadi

Nowadays, computer-aided sperm analysis (CASA) systems have made a big leap in extracting the characteristics of spermatozoa for studies or measuring human fertility. The first step in sperm characteristics analysis is sperm detection in…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Mohammad reza Mohammadi , Mohammad Rahimzadeh , Abolfazl Attar

We compare a set of convolutional neural network (CNN) architectures for the task of segmenting and detecting human sperm cells in an image taken from a semen sample. In contrast to previous work, samples are not stained or washed to allow…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Malte Stær Nissen , Oswin Krause , Kristian Almstrup , Søren Kjærulff , Torben Trindkær Nielsen , Mads Nielsen

The accurate assessment of sperm morphology is crucial in andrological diagnostics, where the segmentation of sperm images presents significant challenges. Existing approaches frequently rely on large annotated datasets and often struggle…

Image and Video Processing · Electrical Eng. & Systems 2025-02-20 Yi Shi , Yunkai Wang , Xupeng Tian , Tieyi Zhang , Bing Yao , Hui Wang , Yong Shao , Cencen Wang , Rong Zeng

Medical image segmentation typically adopts a point-wise convolutional segmentation head to predict dense labels, where each output channel is heuristically tied to a specific class. This rigid design limits both feature sharing and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Bin Xie , Gady Agam

We propose a new framework, called Hierarchical Multi-resolution Mesh Networks (HMMNs), which establishes a set of brain networks at multiple time resolutions of fMRI signal to represent the underlying cognitive process. The suggested…

Neural and Evolutionary Computing · Computer Science 2017-01-13 Itir Onal Ertugrul , Mete Ozay , Fatos Tunay Yarman Vural

This paper presents a method that can accurately detect heads especially small heads under the indoor scene. To achieve this, we propose a novel method, Feature Refine Net (FRN), and a cascaded multi-scale architecture. FRN exploits the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Dezhi Peng , Zikai Sun , Zirong Chen , Zirui Cai , Lele Xie , Lianwen Jin

Despite recent progress on semantic segmentation, there still exist huge challenges in medical ultra-resolution image segmentation. The methods based on multi-branch structure can make a good balance between computational burdens and…

Computer Vision and Pattern Recognition · Computer Science 2020-02-20 Tong Wu , Yuan Xie , Yanyun Qu , Bicheng Dai , Shuxin Chen

We introduce the Shape-Image Multimodal Network (SIM-Net), a novel 2D image classification architecture that integrates 3D point cloud representations inferred directly from RGB images. Our key contribution lies in a pixel-to-point…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Youcef Sklab , Hanane Ariouat , Eric Chenin , Edi Prifti , Jean-Daniel Zucker

Automated prostate segmentation in MRI is highly demanded for computer-assisted diagnosis. Recently, a variety of deep learning methods have achieved remarkable progress in this task, usually relying on large amounts of training data. Due…

Image and Video Processing · Electrical Eng. & Systems 2020-02-20 Quande Liu , Qi Dou , Lequan Yu , Pheng Ann Heng

Fully convolutional networks (FCNs), including UNet and VNet, are widely-used network architectures for semantic segmentation in recent studies. However, conventional FCN is typically trained by the cross-entropy or Dice loss, which only…

Image and Video Processing · Electrical Eng. & Systems 2021-01-26 Kelei He , Chunfeng Lian , Ehsan Adeli , Jing Huo , Yang Gao , Bing Zhang , Junfeng Zhang , Dinggang Shen

Malignant brain tumors have become an aggressive and dangerous disease that leads to death worldwide.Multi-modal MRI data is crucial for accurate brain tumor segmentation, but missing modalities common in clinical practice can severely…

Methodology · Statistics 2025-07-11 Guoyan Liang , Qin Zhou , Jingyuan Chen , Bingcang Huang , Kai Chen , Lin Gu , Zhe Wang , Sai Wu , Chang Yao

We tackle classification based on brain connectivity derived from diffusion magnetic resonance images. We propose a machine-learning model inspired by graph convolutional networks (GCNs), which takes a brain connectivity input graph and…

Neurons and Cognition · Quantitative Biology 2023-09-21 Anees Kazi , Jocelyn Mora , Bruce Fischl , Adrian V. Dalca , Iman Aganj

We propose a novel image dataset focused on tiny faces wearing face masks for mask classification purposes, dubbed Small Face MASK (SF-MASK), composed of a collection made from 20k low-resolution images exported from diverse and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-04 Federico Cunico , Andrea Toaiari , Marco Cristani

In the childbirth process, traditional methods involve invasive vaginal examinations, but research has shown that these methods are both subjective and inaccurate. Ultrasound-assisted diagnosis offers an objective yet effective way to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Zunhui Xia , Hongxing Li , Libin Lan

Precise determination of target is an essential procedure in prostate interventions, such as the prostate biopsy, lesion detection and targeted therapy. However, the prostate delineation may be tough in some cases due to tissue ambiguity or…

Image and Video Processing · Electrical Eng. & Systems 2020-07-31 Chunxia Qin , Xiaojun Chen , Jocelyne Troccaz
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