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To protect the copyright of the 3D scene represented by the neural radiation field, the embedding and extraction of the neural radiation field watermark are considered as a pair of inverse problems of image transformations. A scheme for…

Cryptography and Security · Computer Science 2023-12-06 Wenquan Sun , Jia Liu , Weina Dong , Lifeng Chen , Ke Niu

A watermarking algorithm is proposed in this paper to address the copyright protection issue of implicit 3D models. The algorithm involves embedding watermarks into the images in the training set through an embedding network, and…

Cryptography and Security · Computer Science 2023-09-22 Lifeng Chen , Jia Liu , Yan Ke , Wenquan Sun , Weina Dong , Xiaozhong Pan

The atmospheric and water turbulence mitigation problems have emerged as challenging inverse problems in computer vision and optics communities over the years. However, current methods either rely heavily on the quality of the training…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Weiyun Jiang , Yuhao Liu , Vivek Boominathan , Ashok Veeraraghavan

Underwater images often have severe quality degradation and distortion due to light absorption and scattering in the water medium. A hazed image formation model is widely used to restore the image quality. It depends on two optical…

Image and Video Processing · Electrical Eng. & Systems 2019-06-21 Wei Song , Yan Wang , Dongmei Huang , Antonio Liotta , Cristian Perra

We propose an approach to simulate and render realistic water animation from a single still input photograph. We first segment the water surface, estimate rendering parameters, and compute water reflection textures with a combination of…

Graphics · Computer Science 2022-10-07 Ryusuke Sugimoto , Mingming He , Jing Liao , Pedro V. Sander

This paper reports on WaterGAN, a generative adversarial network (GAN) for generating realistic underwater images from in-air image and depth pairings in an unsupervised pipeline used for color correction of monocular underwater images.…

Computer Vision and Pattern Recognition · Computer Science 2017-10-27 Jie Li , Katherine A. Skinner , Ryan M. Eustice , Matthew Johnson-Roberson

Underwater image enhancement plays a crucial role in providing reliable visual information for underwater platforms, since strong absorption and scattering in water-related environments generally lead to image quality degradation. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Yiqiang Zhou , Yifan Chen , Zhe Sun , Jijun Lu , Ye Zheng , Xuelong Li

Underwater images suffer from color casts and low contrast due to wavelength- and distance-dependent attenuation and scattering. To solve these two degradation issues, we present an underwater image enhancement network via medium…

Computer Vision and Pattern Recognition · Computer Science 2021-05-26 Chongyi Li , Saeed Anwar , Junhui Hou , Runmin Cong , Chunle Guo , Wenqi Ren

Underwater automatic target recognition (UATR) has been a challenging research topic in ocean engineering. Although deep learning brings opportunities for target recognition on land and in the air, underwater target recognition techniques…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Xiaoteng Zhou , Changli Yu , Shihao Yuan , Xin Yuan , Hangchi Yu , Citong Luo

Underwater visual perception is essentially important for underwater exploration, archeology, ecosystem and so on. The low illumination, light reflections, scattering, absorption and suspended particles inevitably lead to the critically…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Yan Kai , Liang Lanyue , Zheng Ziqiang , Wang Guoqing , Yang Yang

Decomposing a scene into its shape, reflectance, and illumination is a challenging but important problem in computer vision and graphics. This problem is inherently more challenging when the illumination is not a single light source under…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Mark Boss , Raphael Braun , Varun Jampani , Jonathan T. Barron , Ce Liu , Hendrik P. A. Lensch

Synthesizing photo-realistic images and videos is at the heart of computer graphics and has been the focus of decades of research. Traditionally, synthetic images of a scene are generated using rendering algorithms such as rasterization or…

In general, underwater images suffer from color distortion and low contrast, because light is attenuated and backscattered as it propagates through water (differently depending on wavelength and on the properties of the water body). An…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Tanmoy Mondal , Ricardo Mendoza , Lucas Drumetz

Underwater image enhancement (UIE) is vital for high-level vision-related underwater tasks. Although learning-based UIE methods have made remarkable achievements in recent years, it's still challenging for them to consistently deal with…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Junjie Wen , Jinqiang Cui , Zhenjun Zhao , Ruixin Yan , Zhi Gao , Lihua Dou , Ben M. Chen

Among underwater perceptual sensors, imaging sonar has been highlighted for its perceptual robustness underwater. The major challenge of imaging sonar, however, arises from the difficulty in defining visual features despite limited…

Robotics · Computer Science 2018-10-19 Sejin Lee , Byungjae Park , Ayoung Kim

Nowadays underwater vision systems are being widely applied in ocean research. However, the largest portion of the ocean - the deep sea - still remains mostly unexplored. Only relatively few image sets have been taken from the deep sea due…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Yifan Song , David Nakath , Mengkun She , Furkan Elibol , Kevin Köser

The degradation in the underwater images is due to wavelength-dependent light attenuation, scattering, and to the diversity of the water types in which they are captured. Deep neural networks take a step in this field, providing autonomous…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Rita Pucci , Christian Micheloni , Niki Martinel

Neural rendering techniques promise efficient photo-realistic image synthesis while at the same time providing rich control over scene parameters by learning the physical image formation process. While several supervised methods have been…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Hassan Abu Alhaija , Siva Karthik Mustikovela , Justus Thies , Varun Jampani , Matthias Nießner , Andreas Geiger , Carsten Rother

Underwater cameras are widely used to observe the sea floor. They are usually included in autonomous underwater vehicles, unmanned underwater vehicles, and in situ ocean sensor networks. Despite being an important sensor for monitoring…

Computer Vision and Pattern Recognition · Computer Science 2017-02-14 Huimin Lu , Yujie Li , Yudong Zhang , Min Chen , Seiichi Serikawa , Hyoungseop Kim

Underwater object detection (UOD) is crucial for marine economic development, environmental protection, and the planet's sustainable development. The main challenges of this task arise from low-contrast, small objects, and mimicry of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Linhui Dai , Hong Liu , Pinhao Song , Hao Tang , Runwei Ding , Shengquan Li