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In this paper, we propose a real-time hand gesture recognition system based on difference image entropy using a stereo camera. Existing systems use hand detection primarily with some type of marker. Our system, however, uses a real-time hand image recognition system. In the detection step, we implement a depth map using a sum of absolute differences based on the acquired right-left image using a stereo...
This contribution describes a distributed multi-camera capture and processing system for real-time media production applications. Its main design purpose is to allow prototyping of distributed processing algorithms for free-viewpoint applications, but the concept can be adapted to other (multicamera) applications. The system integrates broadcast components into a distributed IT-based processing system...
In this paper we present a biological-aware stereoscopic renderer that is used in a video communication system, to convincingly provide the participants with synthetic 3D perception. As opposed to conventional 3D systems-where pre-recorded content is presented to the viewer without taking his or her viewing location into account-we adaptively exploit both monocular and binocular cues of the human...
We present a real-time pedestrian detection system based on structure and appearance classification. We discuss several novel ideas that contribute to having low-false alarms and high detection rates, while at the same time achieving computational efficiency: (i) At the front end of our system we employ stereo to detect pedestrians in 3D range maps using template matching with a representative 3D...
A new approach is proposed for a smart video surveillance system in this paper. The proposed surveillance system uses cononical stereo configuration to set up a pair of statical cameras to support a salient map to control a Pan-Tilt-Zoom(PTZ) camera/cameras, which captures high definition image /video of the interesting moving object in the surveillance area for further forensic investigations. The...
This paper discusses the problem of high quality depth map estimation for real-time systems. Our work is based on the European FP7 project 3DPresence which aims to build a multi-view and multiuser 3D videoconferencing system. Based on new multi-view auto-stereoscopic display technology the remote conferees will be rendered as an integral part of a three dimensional virtual shared environment. In order...
In the robotics and computer vision communities, localization and mapping of an unknown environment is a well studied problem. To tackle this problem in real-time using a single camera, state-of-the-art Simultaneous Localization and Mapping (SLAM) or Structure from Motion (SfM) algorithms can be used. To create the model of the unknown environment, the camera moves and adds to the map from point to...
We introduce a design of a coded light-based 3D color video camera optimized for build up cost as well as accuracy in depth reconstruction and acquisition speed. The components of the system include a monochromatic camera and an off-the-shelf LED projector synchronized by a miniature circuit. The projected patterns are captured and processed at a rate of 200 fps and allow for real-time reconstruction...
This paper presents a real-time video-based rendering system that uses multiview video data with depth representation for free-viewpoint navigation. The proposed rendering algorithm not only achieves high quality rendering but also increases viewpoint flexibility to cover viewpoints that do not lie on the camera baselines. The proposed system achieves real-time decoding of multiple videos and depth...
The simulation of large crowds of characters is important in many fields of virtual reality, as they can increase the credibility of the virtual environments. Rendering large crowd of characters requires a great mount of computational power. To increase the efficiency for this render, we propose a GPU-based crowd rendering method. We present a novel hybrid rendering method using geometric representation...
In this paper, we present a framework for immersive 3D video conferencing and geographically distributed collaboration. Our multi-camera system performs a full-body 3D reconstruction of users in real time and renders their image in a virtual space allowing remote interaction between users and the virtual environment. The paper features an overview of the technology and algorithms used for calibration,...
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