The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Pre-flight radiometric calibration is critical to ensure that sensors can demonstrate that they meet their design performance specification. However, following launch it is critical that this performance is verified and in particular that the radiometric accuracy is validated or if necessary corrected. As Earth observation data becomes widely used it becomes increasingly important that data from each...
In multi-view imaging, a number of cameras capture the same scene from different viewpoints for regeneration of the light rays which may be emitted by a special display for 3D visualization. However, there are many conditions such as spectral characteristics of the optics, lighting variations, and sensor characteristics that cause color variations among captured multi-view images; therefore, these...
In this paper, we describe an algorithm for the synthesis of natural head motion on a 3D avatar from reconstructed 3D frontal face data with the goal of making 3D video games immersive, engaging and fun when played on 3D displays. The idea is that frame by frame natural head motion of a user is calculated without utilizing any markers from stereo image pair and transmitted to the avatar to generate...
In this paper, we describe a new algorithm to enhance the calibrated stereo camera based depth map (disparity) estimation to view the 3D scene content on autostereoscopic displays. There are various similarity measure methods for calculating the disparity between a block in the first image and the corresponding block in the second image that is most similar to the block in the first image. This process...
In this paper, we describe a novel real-time stereo facial feature tracking algorithm in presence of geometry and illumination changes. The algorithm is applied to real-time human-humanoid interactions. First, facial feature tracking algorithm locates the facial landmarks such as eyes with the left camera. Then, matching the between the eye pattern on stereo images, the horopter of the head location...
Multimodal signal processing has become an important topic of research for overcoming certain problems of audio-only speech processing. Audio-visual speech recognition is one area with great potential. Difficulties due to background noise and multiple speakers are significantly reduced by the additional information provided by extra visual features. Despite a few efforts to create databases in this...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.