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For a monocular 360 image, depth estimation is a challenging because the distortion increases along the latitude. To perceive the distortion, existing methods devote to designing a deep and complex network architecture. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Zhijie Shen , Chunyu Lin , Lang Nie , Kang Liao , Yao Zhao

Overfitted neural video codecs offer a decoding complexity orders of magnitude smaller than their autoencoder counterparts. Yet, this low complexity comes at the cost of limited compression efficiency, in part due to their difficulty…

Image and Video Processing · Electrical Eng. & Systems 2025-03-27 Thomas Leguay , Théo Ladune , Pierrick Philippe , Olivier Deforges

Hair appearance is a complex phenomenon due to hair geometry and how the light bounces on different hair fibers. For this reason, reproducing a specific hair color in a rendering environment is a challenging task that requires manual work…

Graphics · Computer Science 2022-02-09 Robin Kips , Panagiotis-Alexandros Bokaris , Matthieu Perrot , Pietro Gori , Isabelle Bloch

Classical video coding for satisfying humans as the final user is a widely investigated field of studies for visual content, and common video codecs are all optimized for the human visual system (HVS). But are the assumptions and…

Image and Video Processing · Electrical Eng. & Systems 2022-03-14 Kristian Fischer , Christian Herglotz , André Kaup

Video coding algorithms encode and decode an entire video frame while feature coding techniques only preserve and communicate the most critical information needed for a given application. This is because video coding targets human…

Image and Video Processing · Electrical Eng. & Systems 2021-09-06 Ashek Ahmmed , Manoranjan Paul , Manzur Murshed , David Taubman

Multi-view image compression plays a critical role in 3D-related applications. Existing methods adopt a predictive coding architecture, which requires joint encoding to compress the corresponding disparity as well as residual information.…

Image and Video Processing · Electrical Eng. & Systems 2023-04-13 Xinjie Zhang , Jiawei Shao , Jun Zhang

Depth estimation is a crucial technology in robotics. Recently, self-supervised depth estimation methods have demonstrated great potential as they can efficiently leverage large amounts of unlabelled real-world data. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Siyu Chen , Hong Liu , Wenhao Li , Ying Zhu , Guoquan Wang , Jianbing Wu

As the latest video coding standard, versatile video coding (VVC) has shown its ability in retaining pixel quality. To excavate more compression potential for video conference scenarios under ultra-low bitrate, this paper proposes a bitrate…

Image and Video Processing · Electrical Eng. & Systems 2023-03-21 Anni Tang , Yan Huang , Jun Ling , Zhiyu Zhang , Yiwei Zhang , Rong Xie , Li Song

Reconstructing an object's high-quality 3D shape with inherent spectral reflectance property, beyond typical device-dependent RGB albedos, opens the door to applications requiring a high-fidelity 3D model in terms of both geometry and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Chunyu Li , Yusuke Monno , Masatoshi Okutomi

In perceptual image coding applications, the main objective is to decrease, as much as possible, Bits Per Pixel (BPP) while avoiding noticeable distortions in the reconstructed image. In this paper, we propose a novel perceptual image…

Image and Video Processing · Electrical Eng. & Systems 2021-02-10 Lee Prangnell , Victor Sanchez

We introduce a highly performant 3D object detector for point clouds using the DETR framework. The prior attempts all end up with suboptimal results because they fail to learn accurate inductive biases from the limited scale of training…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Yichao Shen , Zigang Geng , Yuhui Yuan , Yutong Lin , Ze Liu , Chunyu Wang , Han Hu , Nanning Zheng , Baining Guo

Recent work has shown that the structure of convolutional neural networks (CNNs) induces a strong prior that favors natural images. This prior, known as a deep image prior (DIP), is an effective regularizer in inverse problems such as image…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Pallabi Ghosh , Vibhav Vineet , Larry S. Davis , Abhinav Shrivastava , Sudipta Sinha , Neel Joshi

The proliferation of high resolution videos posts great storage and bandwidth pressure on cloud video services, driving the development of next-generation video codecs. Despite great progress made in neural video coding, existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Yueyu Hu , Chenhao Zhang , Onur G. Guleryuz , Debargha Mukherjee , Yao Wang

Image-based shape retrieval (IBSR) aims to retrieve 3D models from a database given a query image, hence addressing a classical task in computer vision, computer graphics, and robotics. Recent approaches typically rely on bridging the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Paul Julius Kühn , Cedric Spengler , Michael Weinmann , Arjan Kuijper , Saptarshi Neil Sinha

Despite significant progress made in the past few years, challenges remain for depth estimation using a single monocular image. First, it is nontrivial to train a metric-depth prediction model that can generalize well to diverse scenes…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Wei Yin , Jianming Zhang , Oliver Wang , Simon Niklaus , Simon Chen , Yifan Liu , Chunhua Shen

Neural networks can be successfully used to improve several modules of advanced video coding schemes. In particular, compression of colour components was shown to greatly benefit from usage of machine learning models, thanks to the design…

Image and Video Processing · Electrical Eng. & Systems 2021-02-10 Marc Górriz , Saverio Blasi , Alan F. Smeaton , Noel E. O'Connor , Marta Mrak

We focus on the task of amodal 3D object detection in RGB-D images, which aims to produce a 3D bounding box of an object in metric form at its full extent. We introduce Deep Sliding Shapes, a 3D ConvNet formulation that takes a 3D…

Computer Vision and Pattern Recognition · Computer Science 2016-03-10 Shuran Song , Jianxiong Xiao

Contemporary lossy image and video coding standards rely on transform coding, the process through which pixels are mapped to an alternative representation to facilitate efficient data compression. Despite impressive performance of…

Image and Video Processing · Electrical Eng. & Systems 2023-02-21 Lyndon R. Duong , Bohan Li , Cheng Chen , Jingning Han

Scene text recognition (STR) pre-training methods have achieved remarkable progress, primarily relying on synthetic datasets. However, the domain gap between synthetic and real images poses a challenge in acquiring feature representations…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Shuai Zhao , Yongkun Du , Zhineng Chen , Yu-Gang Jiang

Edges, boundaries and contours are important subjects of study in both computer graphics and computer vision. On one hand, they are the 2D elements that convey 3D shapes, on the other hand, they are indicative of occlusion events and thus…

Computer Vision and Pattern Recognition · Computer Science 2019-01-04 Mengtian Li , Zhe Lin , Radomir Mech , Ersin Yumer , Deva Ramanan