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Recent work has shown that diffusion models can serve as powerful neural rendering engines that can be leveraged for inserting virtual objects into images. However, unlike typical physics-based renderers, these neural rendering engines are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Frédéric Fortier-Chouinard , Zitian Zhang , Louis-Etienne Messier , Mathieu Garon , Anand Bhattad , Jean-François Lalonde

Gaussian Splatting have demonstrated remarkable novel view synthesis performance at high rendering frame rates. Optimization-based inverse rendering within complex capture scenarios remains however a challenging problem. A particular case…

Graphics · Computer Science 2025-12-08 Mae Younes , Adnane Boukhayma

The photorealistic rendering of the transparent effect of translucent objects is a hot research topic in recent years. A real-time photorealistic rendering and material dynamic editing method for the diffuse scattering effect of translucent…

Graphics · Computer Science 2022-03-24 Rui Wang , Wei Hua , Yuchi Huo , Hujun Bao

The continuous advancement of photorealism in rendering is accompanied by a growth in texture data and, consequently, increasing storage and memory demands. To address this issue, we propose a novel neural compression technique specifically…

Deep learning has shown great potential in accelerating diffusion tensor imaging (DTI). Nevertheless, existing methods tend to suffer from Rician noise and eddy current, leading to detail loss in reconstructing the DTI-derived parametric…

Image and Video Processing · Electrical Eng. & Systems 2024-08-21 Wenxin Fan , Jian Cheng , Cheng Li , Jing Yang , Ruoyou Wu , Juan Zou , Shanshan Wang

Low-light image enhancement is challenging due to complex degradations, including amplified noise, artifacts, and color distortion. While Retinex-based deep learning methods have achieved promising results, they primarily rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Youssef Aboelwafa , Hicham G. Elmongui , Marwan Torki

3D Gaussian Splatting (3DGS) has vastly advanced the pace of neural rendering, but it remains computationally demanding on today's mobile SoCs. To address this challenge, we propose Lumina, a hardware-algorithm co-designed system, which…

Hardware Architecture · Computer Science 2025-06-09 Yu Feng , Weikai Lin , Yuge Cheng , Zihan Liu , Jingwen Leng , Minyi Guo , Chen Chen , Shixuan Sun , Yuhao Zhu

We present a novel Relightable Neural Renderer (RNR) for simultaneous view synthesis and relighting using multi-view image inputs. Existing neural rendering (NR) does not explicitly model the physical rendering process and hence has limited…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Zhang Chen , Anpei Chen , Guli Zhang , Chengyuan Wang , Yu Ji , Kiriakos N. Kutulakos , Jingyi Yu

Diffusion models are widely used for generative tasks across domains. Given a pre-trained diffusion model, it is often desirable to fine-tune it further either to correct for errors in learning or to align with downstream applications.…

Diffusion Transformers achieve impressive generative quality but remain computationally expensive due to iterative sampling. Recently, dynamic resolution sampling has emerged as a promising acceleration technique by reducing the resolution…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Shikang Zheng , Guantao Chen , Lixuan He , Jiacheng Liu , Yuqi Lin , Chang Zou , Linfeng Zhang

This research paper explores the application of style transfer in computer vision using RGB images and their corresponding depth maps. We propose a novel method that incorporates the depth map and a heatmap of the RGB image to generate more…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Bhavya Sehgal , Vaishnavi Mendu , Aparna Mendu

We present Direct Reward Fine-Tuning (DRaFT), a simple and effective method for fine-tuning diffusion models to maximize differentiable reward functions, such as scores from human preference models. We first show that it is possible to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Kevin Clark , Paul Vicol , Kevin Swersky , David J Fleet

This paper considers machine learning for physical layer security design for communication in a challenging wireless environment. The radio environment is assumed to be programmable with the aid of a meta material-based intelligent…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Yizhuo Song , Muhammad R. A. Khandaker , Faisal Tariq , Kai-Kit Wong , Apriana Toding

Diffusion models have achieved remarkable success in generating high-fidelity content but suffer from slow, iterative sampling, resulting in high latency that limits their use in interactive applications. We introduce DRiffusion, a parallel…

Machine Learning · Computer Science 2026-03-30 Runsheng Bai , Chengyu Zhang , Yangdong Deng

Augmented reality applications have rapidly spread across online platforms, allowing consumers to virtually try-on a variety of products, such as makeup, hair dying, or shoes. However, parametrizing a renderer to synthesize realistic images…

Computer Vision and Pattern Recognition · Computer Science 2022-05-16 Robin Kips , Ruowei Jiang , Sileye Ba , Brendan Duke , Matthieu Perrot , Pietro Gori , Isabelle Bloch

Realistic indoor or outdoor image synthesis is a core challenge in computer vision and graphics. The learning-based approach is easy to use but lacks physical consistency, while traditional Physically Based Rendering (PBR) offers high…

Graphics · Computer Science 2025-04-25 Yu Guo , Zhiqiang Lao , Xiyun Song , Yubin Zhou , Zongfang Lin , Heather Yu

Photo-realistic video portrait reenactment benefits virtual production and numerous VR/AR experiences. The task remains challenging as the reenacted expression should match the source while the lighting should be adjustable to new…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Youjia Wang , Taotao Zhou , Minzhang Li , Teng Xu , Minye Wu , Lan Xu , Jingyi Yu

Contrast enhancement and noise removal are coupled problems for low-light image enhancement. The existing Retinex based methods do not take the coupling relation into consideration, resulting in under or over-smoothing of the enhanced…

Image and Video Processing · Electrical Eng. & Systems 2019-11-27 Yang Wang , Yang Cao , Zheng-Jun Zha , Jing Zhang , Zhiwei Xiong , Wei Zhang , Feng Wu

Implicit Neural Representations (INRs) have emerged as promising surrogates for large 3D scientific simulations due to their ability to continuously model spatial and conditional fields, yet they face a critical fidelity-speed dilemma: deep…

Machine Learning · Computer Science 2026-03-25 Tianyu Xiong , Skylar Wurster , Han-Wei Shen

Augmented Reality (AR) applications necessitates methods of inserting needed objects into scenes captured by cameras in a way that is coherent with the surroundings. Common AR applications require the insertion of predefined 3D objects with…

Computer Vision and Pattern Recognition · Computer Science 2024-01-29 Fouad Afiouni , Mohamad Fakih , Joey Sleiman