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Stereo matching has been one of the most active research topics in computer vision domain for many years resulting in a large number of techniques proposed in the literature. Nevertheless, improper combinations of available tools cannot fully utilize the advantages of each method and may even lower the performance of the stereo matching system. Moreover, state-of-the-art techniques are usually optimized...
Extremely low-resolution video still proves suitable for many video interpretation methods and therefore may be used in small, low-cost and low-power visual sensors. Although some image analysis algorithms can be performed at the sensor node, collecting multiple video streams at the server side is necessary to execute many advanced video-based applications. Thus, an error-resilient video codec is...
This demonstrator explores the applicability of depth estimation based on stereo video with extremely low resolution, i.e., 30x30 pixels. To handle this resolution, a disparity estimation technique, composed of local correlation-based matching of two low-resolution stereo images followed by segmentationdriven post-processing, is proposed. The demonstrator includes a setup where a stereo visual sensor...
This demonstrator illustrates the performance of our designated intra-frame video codec for low-resolution visual sensors. The encoder of the presented compression system runs on a low-power visual sensor, which captures stereo frames of 30×30 6-bit gray-scale pixels. A laptop computer is connected using a serial connection and runs the decoder in real-time, displaying the resulting visual quality,...
Emerging video technologies, such as 3DTV, increase the demand for high efficiency coding tools. To allow the transmission of a multiview video over the employed transmission channels, a new data format including texture and the corresponding depth information has been proposed. In this paper we present a novel segmentation-based intra codec for depth maps, utilizing the correlation between depth...
Depth-based view synthesis can produce novel realistic images of a scene by view warping and image inpainting. This paper presents a depth-based view synthesis approach performing pixel-level image inpainting. The proposed approach provides great flexibility in pixel manipulation and prevents random effects in texture propagation. By analyzing the process generating image holes in view warping, we...
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