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With the headway of the advanced image handling software and altering tools, a computerized picture can be effectively controlled. The identification of image manipulation is vital in light of the fact that an image can be utilized as…

Multimedia · Computer Science 2017-03-31 Abhishek Kashyap , Rajesh Singh Parmar , Megha Agrawal , Hariom Gupta

The goal of video highlight detection is to select the most attractive segments from a long video to depict the most interesting parts of the video. Existing methods typically focus on modeling relationship between different video segments…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Fanyue Wei , Biao Wang , Tiezheng Ge , Yuning Jiang , Wen Li , Lixin Duan

High-resolution (HR) image harmonization is of great significance in real-world applications such as image synthesis and image editing. However, due to the high memory costs, existing dense pixel-to-pixel harmonization methods are mainly…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Jianqi Chen , Yilan Zhang , Zhengxia Zou , Keyan Chen , Zhenwei Shi

Image correction aims to adjust an input image into a visually pleasing one. Existing approaches are proposed mainly from the perspective of image pixel manipulation. They are not effective to recover the details in the under/over exposed…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Xin Yang , Ke Xu , Yibing Song , Qiang Zhang , Xiaopeng Wei , Rynson Lau

Digital cameras can only capture a limited range of real-world scenes' luminance, producing images with saturated pixels. Existing single image high dynamic range (HDR) reconstruction methods attempt to expand the range of luminance, but…

Image and Video Processing · Electrical Eng. & Systems 2020-05-18 Marcel Santana Santos , Tsang Ing Ren , Nima Khademi Kalantari

Hologram is an ideal method for naked eye three-dimensional (3D) display, and computer-generated holography (CGH) makes it possible to reconstruct virtual objects. However, the large pixel size of common CGH devices results in shortages in…

Optics · Physics 2019-09-13 Hui Gao , Yuxi Wang , Xuhao Fan , Fenzhang Jiao , Jinsong Xia , Wei Xiong , Minghui Hong

Holographic information hiding is a technique for embedding holograms or images into another hologram, used for copyright protection and steganography of holograms. Using deep neural networks, we offer a way to improve the visual quality of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Tomoyoshi Shimobaba , Sota Oshima , Takashi Kakue , and Tomoyoshi Ito

The task of image segmentation is to classify each pixel in the image based on the appropriate label. Various deep learning approaches have been proposed for image segmentation that offers high accuracy and deep architecture. However, the…

Image and Video Processing · Electrical Eng. & Systems 2022-12-29 Lukman Hakim , Takio Kurita

Image inpainting is the task of plausibly restoring missing pixels within a hole region that is to be removed from a target image. Most existing technologies exploit patch similarities within the image, or leverage large-scale training data…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Yuqian Zhou , Connelly Barnes , Eli Shechtman , Sohrab Amirghodsi

Computer-generated holography (CGH) has broad applications such as direct-view display, virtual and augmented reality, as well as optical microscopy. CGH usually utilizes a spatial light modulator that displays a computer-generated phase…

Optics · Physics 2021-12-14 Alex Liu , Yi Xue , Laura Waller

We demonstrate the first use of the HoloTile Computer-Generated Holography (CGH) modality on multi-wavelength targets. Taking advantage of the sub-hologram tiling and Point Spread Function (PSF) shaping of HoloTile allows for reconstruction…

Optics · Physics 2025-02-25 Andreas Erik Gejl Madsen , Jesper Glückstad

Modern cameras have limited dynamic ranges and often produce images with saturated or dark regions using a single exposure. Although the problem could be addressed by taking multiple images with different exposures, exposure fusion methods…

Image and Video Processing · Electrical Eng. & Systems 2020-04-22 Sheng-Yeh Chen , Yung-Yu Chuang

Affine transformation, layer blending, and artistic filters are popular processes that graphic designers employ to transform pixels of an image to create a desired effect. Here, we examine various approaches that synthesize new images:…

Graphics · Computer Science 2019-01-16 Somnuk Phon-Amnuaisuk

Computer-generated holography (CGH) is a promising technology for augmented reality displays, such as head-mounted or head-up displays. However, its high computational demand makes it impractical for implementation. Recent efforts to…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Yutaka Endo , Minoru Oikawa , Timothy D. Wilkinson , Tomoyoshi Shimobaba , Tomoyoshi Ito

An image captured with a wide-aperture camera exhibits a finite depth-of-field, with focused and defocused pixels. A compact and robust representation of focus and defocus helps analyze and manipulate such images. In this work, we study the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Parikshit Sakurikar , P. J. Narayanan

Machine learning-based computer-generated holography (ML-CGH) has advanced rapidly in recent years, yet progress is constrained by the limited availability of high-quality, large-scale hologram datasets. To address this, we present…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Jaehong Lee , You Chan No , YoungWoo Kim , Duksu Kim

Depth of Field (DoF) in games is usually achieved as a post-process effect by blurring pixels in the sharp rasterized image based on the defined focus plane. This paper describes a novel real-time DoF technique that uses ray tracing with…

Graphics · Computer Science 2022-10-12 Yu Wei Tan , Nicholas Chua , Nathan Biette , Anand Bhojan

Image co-segmentation is a challenging task in computer vision that aims to segment all pixels of the objects from a predefined semantic category. In real-world cases, however, common foreground objects often vary greatly in appearance,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-16 Wei Teng , Yu Zhang , Xiaowu Chen , Jia Li , Zhiqiang He

Fourier ptychography is a recently explored imaging method for overcoming the diffraction limit of conventional cameras with applications in microscopy and yielding high-resolution images. In order to splice together low-resolution images…

Image and Video Processing · Electrical Eng. & Systems 2020-03-18 Yican Chen , Zhi Luo , Xia Wu , Huidong Yang , Bo Huang

Existing image synthesis methods for natural scenes focus primarily on foreground control, often reducing the background to simplistic textures. Consequently, these approaches tend to overlook the intrinsic correlation between foreground…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Mu Zhang , Yunfan Liu , Yue Liu , Yuzhong Zhao , Qixiang Ye