technology advancement improves the way we interact with computer systems. keyboard, mouse, and touchpad provide an easier and more natural way of interaction with a computer system. nowadays, by introducing low cost and high performance depth cameras like kinect and xtion, new opportunities are available for creating even more natural interfaces. in this paper, a new model was demonstrated for...

Depth cameras open new possibilities in fields such as 3D reconstruction, Augmented Reality and video-surveillance since they provide depth information at high frame-rates. However, like any sensor, they have limitations related to their technology. One of them is depth distortion. In this paper, we present a method to estimate depth correction for depth cameras. The proposed method is based on...

Consumer RGB-D cameras have become very useful in the last years, but their field of view is too narrow for certain applications. We propose a new hybrid camera system composed by a conventional RGB-D and a fisheye camera to extend the field of view over 180 degrees. With this system we have a region of the hemispherical image with depth certainty, and color data in the periphery that is used t...

In this paper we present a novel method for obstacle avoidance using the stereo camera. The conventional obstacle avoidance methods and their limitations are discussed. A new algorithm is developed for the real-time obstacle avoidance which responds faster to unexpected obstacles. In this approach the depth map is divided into optimized number of regions and the minimum depth at each section is...

In this paper, a new technique for color reproduction based on color variation characteristics of digital camera under a dim light condition is proposed. Generally, photographers should adjust a camera exposure properly for obtaining an image with real color tone of subjects. Thus, in case of taking a picture under a dim light condition, the exposure time of a camera has to be relatively longer...

Portable digital cameras are being used widely by students and professionals in different fields as a practical way to digitize documents. Tools such as PhotoDoc enable the batch processing of such documents, performing automatic border removal and perspective correction. A PhotoDoc processed document and a scanned one look very similar to the human eye if both are in true color. However, if on...

In this paper, we present a new system to generate multiview video sequences with depth information (MVD) by integrating multiple high-definition (HD) camera arrays and one standard-definition (SD) depth camera. In the proposed hybrid camera system, we first create the initial disparity for each HD color image by applying a threedimensional (3-D) warping operation on the depth map acquired by t...

In this paper, we propose a new scheme to generate multi-view video-plus-depth using a hybrid camera system, which is composed of one depth camera and multiple video cameras. In order to create the threedimensional (3-D) video, we first calculate the initial disparity for each view by projecting depth camera data onto each video camera using 3-D image warping. Then, a stereo matching algorithm ...

Depth cameras are increasingly used for tasks such as 3-D reconstruction, user pose estimation, and humancomputer interaction. Depth-camera systems comprising multiple depth sensors require careful calibration. In addition to conventional 2-D camera calibration, depth correction for each individual device is necessary. In this paper, we present a new way of solving the multi depth-camera calibr...