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Embodied Question Answering (EQA) serves as a benchmark task to evaluate the capability of robots to navigate within novel environments and identify objects in response to human queries. However, existing EQA methods often rely on simulated…

Robotics · Computer Science 2024-10-15 Koya Sakamoto , Daichi Azuma , Taiki Miyanishi , Shuhei Kurita , Motoaki Kawanabe

We analyze the performance of a class of manifold-learning algorithms that find their output by minimizing a quadratic form under some normalization constraints. This class consists of Locally Linear Embedding (LLE), Laplacian Eigenmap,…

Machine Learning · Statistics 2008-06-17 Y. Goldberg , A. Zakai , D. Kushnir , Y. Ritov

Objective image quality evaluation is a challenging task, which aims to measure the quality of a given image automatically. According to the availability of the reference images, there are Full-Reference and No-Reference IQA tasks,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Chao Zeng , Sam Kwong

Deep learning based image quality assessment (IQA) models usually learn to predict image quality from a single dataset, leading the model to overfit specific scenes. To account for this, mixed datasets training can be an effective way to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Zhaopeng Feng , Keyang Zhang , Shuyue Jia , Baoliang Chen , Shiqi Wang

Deep-learning based techniques have contributed to the remarkable progress in the field of automatic image quality assessment (IQA). Existing IQA methods are designed to measure the quality of an image in terms of Mean Opinion Score (MOS)…

Image and Video Processing · Electrical Eng. & Systems 2022-06-15 Wook-Hyung Kim , Cheul-hee Hahm , Anant Baijal , Namuk Kim , Ilhyun Cho , Jayoon Koo

Manifold learning techniques seek to discover structure-preserving mappings of high-dimensional data into low-dimensional spaces. While the new sets of coordinates specified by these mappings can closely parameterize the data, they are…

Numerical Analysis · Computer Science 2019-05-22 Samuel E. Otto , Clarence W. Rowley

Image aesthetics assessment (IAA) aims to estimate the aesthetics of images. Depending on the content of an image, diverse criteria need to be selected to assess its aesthetics. Existing works utilize pre-trained vision backbones based on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Zhiwei Xiong , Yunfan Zhang , Zhiqi Shen , Peiran Ren , Han Yu

Similarity measures are widely used to interpret the representational geometries used by neural networks to solve tasks. Yet, because existing methods compare the extrinsic geometry of representations in state space, rather than their…

Machine Learning · Computer Science 2026-04-03 N Alex Cayco-Gajic , Arthur Pellegrino

The goal of No-Reference Image Quality Assessment (NR-IQA) is to estimate the perceptual image quality in accordance with subjective evaluations, it is a complex and unsolved problem due to the absence of the pristine reference image. In…

Image and Video Processing · Electrical Eng. & Systems 2022-01-06 S. Alireza Golestaneh , Saba Dadsetan , Kris M. Kitani

This paper presents NOMAD (Non-Matching Audio Distance), a differentiable perceptual similarity metric that measures the distance of a degraded signal against non-matching references. The proposed method is based on learning deep feature…

Sound · Computer Science 2024-01-22 Alessandro Ragano , Jan Skoglund , Andrew Hines

Estimating quality of transmitted speech is known to be a non-trivial task. While traditionally, test participants are asked to rate the quality of samples; nowadays, automated methods are available. These methods can be divided into: 1)…

Sound · Computer Science 2021-12-14 H. Tilkorn , G. Mittag , S. Möller

This tutorial provides the audience with the basic theories, methodologies, and current progresses of image quality assessment (IQA). From an actionable perspective, we will first revisit several subjective quality assessment methodologies,…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Kede Ma , Yuming Fang

We propose a deep-learning based method for obtaining standardized data coordinates from scientific measurements.Data observations are modeled as samples from an unknown, non-linear deformation of an underlying Riemannian manifold, which is…

Scientific images fundamentally differ from natural and AI-generated images in that they encode structured domain knowledge rather than merely depict visual scenes. Assessing their quality therefore requires evaluating not only perceptual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Wenzhe Li , Liang Chen , Junying Wang , Yijing Guo , Ye Shen , Farong Wen , Chunyi Li , Zicheng Zhang , Guangtao Zhai

The success of algorithms in the analysis of high-dimensional data is often attributed to the manifold hypothesis, which supposes that this data lie on or near a manifold of much lower dimension. It is often useful to determine or estimate…

Machine Learning · Statistics 2024-09-10 Anna C. Gilbert , Kevin O'Neill

Image quality assessment (IQA) is an active research area in the field of image processing. Most prior works focus on visual quality of natural images captured by cameras. In this paper, we explore visual quality of scanned documents,…

Image and Video Processing · Electrical Eng. & Systems 2023-07-26 Justin Yang , Peter Bauer , Todd Harris , Changhyung Lee , Hyeon Seok Seo , Jan P Allebach , Fengqing Zhu

Blind Image Quality Assessment (BIQA) is an essential task that estimates the perceptual quality of images without reference. While many BIQA methods employ deep neural networks (DNNs) and incorporate saliency detectors to enhance…

Image and Video Processing · Electrical Eng. & Systems 2024-07-09 Zhanxuan Mei , Yun-Cheng Wang , C. -C. Jay Kuo

There has been an emerging trend in non-Euclidean statistical analysis of aiming to recover a low dimensional structure, namely a manifold, underlying the high dimensional data. Recovering the manifold requires the noise to be of certain…

Machine Learning · Statistics 2024-06-11 Zhigang Yao , Yuqing Xia

Among the various image quality assessment (IQA) tasks, blind IQA (BIQA) is particularly challenging due to the absence of knowledge about the reference image and distortion type. Features based on natural scene statistics (NSS) have been…

Computer Vision and Pattern Recognition · Computer Science 2015-10-13 Wufeng Xue , Xuanqin Mou , Lei Zhang

One of the prevailing trends in the machine- and deep-learning community is to gravitate towards the use of increasingly larger models in order to keep pushing the state-of-the-art performance envelope. This tendency makes access to the…

Machine Learning · Computer Science 2023-05-29 Shadi Sartipi , Edgar A. Bernal