نتایج جستجو برای: video camera

تعداد نتایج: 221558  

Journal: :Graphical Models 2005
Jonathan Starck Adrian Hilton

This paper addresses the synthesis of novel views of people from multiple view video. We consider the target area of the multiple camera 3D Virtual Studio for broadcast production with the requirement for free-viewpoint video synthesis for a virtual camera with the same quality as captured video. A framework is introduced for view-dependent optimisation of reconstructed surface shape to align m...

Journal: :Comput. Graph. Forum 2012
Christian Richardt Carsten Stoll Neil A. Dodgson Hans-Peter Seidel Christian Theobalt

Sophisticated video processing effects require both image and geometry information. We explore the possibility to augment a video camera with a recent infrared time-of-flight depth camera, to capture high-resolution RGB and low-resolution, noisy depth at video frame rates. To turn such a setup into a practical RGBZ video camera, we develop efficient data filtering techniques that are tailored t...

1992
J. Kramer P. Seitz Paul Scherrer H. Baltes

A 3-D camera has been developed, capable of measuring 50 complete depth images per second of arbitrary, diffusely reflecting objects. The output of this real-time 3-D camera is a CCIR video signal, in which the depth is linearly coded as the local gray-value of the video image. The measurement principle is active triangulation using a solid-state laser and two galvanometer mirrors for beam and ...

Journal: :The Annals of otology, rhinology, and laryngology 2016
Peak Woo

INTRODUCTION 4K video is a new format. At 3840 × 2160 resolution, it has 4 times the resolution of standard 1080 high definition (HD) video. Magnification can be done without loss of resolution. This study uses 4K video for video-stroboscopy. MATERIAL AND METHOD Forty-six patients were examined by conventional video-stroboscopy (digital 3 chip CCD) and compared with 4K video-stroboscopy. The ...

2004
Qian Lin Tong Zhang Mei Chen Yining Deng Pere Obrador

home video analysis, video to photo, video printing, camera motion analysis, intelligent keyframe extraction, video panorama, superresolution, user intent, motion mining More and more home videos have been generated with the ever growing popularity of digital cameras and camcorders. In many cases of home video, a photo, whether capturing a moment or a scene within the video, provides a compleme...

2001
Chris Buehler Michael Bosse Leonard McMillan

We consider the problem of video stabilization: removing unwanted image perturbations due to unstable camera motions. We approach this problem from an image-based rendering (IBR) standpoint. Given an unstabilized video sequence, the task is to synthesize a new sequence as seen from a stabilized camera trajectory. This task is relatively straightforward if one has a Euclidean reconstruction of t...

Journal: :Comput. Geom. 2000
Cornelia Fermüller Yiannis Aloimonos Tomás Brodský

Models of real-world objects and actions for use in graphics, virtual and augmented reality and related elds can only be obtained through the use of visual data and particularly video. This paper examines the question of recovering shape models from video information. Given video of an object or a scene captured by a moving camera, a prerequisite for model building is to recover the three-dimen...

2007
XING ZHANG X. ZHANG

This paper presents a concept, architecture and an FPGA-based prototype of a smart image sensor for video cameras to be integrated into Intelligent Video Surveillance Systems. The system utilizes a distributed cooperative architecture with appropriate level of intelligence at different levels. The sensor performs automated scene analysis and provides immediate response to suspicious events by o...

2010
Takuma Yamaguchi Hisato Fukuda Ryo Furukawa Hiroshi Kawasaki Peter F. Sturm

Video camera is now commonly used and demand of capturing a single frame from video sequence is increasing. Since resolution of video camera is usually lower than digital camera and video data usually contains a many motion blur in the sequence, simple frame capture can produce only low quality image; image restoration technique is inevitably required. In this paper, we propose a method to rest...

2010
Huizhong Chen Sherif Halawa Derek Pang

Although modern hand-held devices, such as digital camcorders and smartphones, have enabled everyday users to capture high-quality video sequences, the quality of hand-held videos often suffers from unavoidable shaky camera motion. Video stabilization aims to remove this annoying hand-shaking motion from a video. Existing video stabilization algorithms [1, 2, 3, 4, 5] involve three major stages...

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