In this work, we present a non-photorealistic rendering technique to create stylized abstractions from color images and videos. Our approach is based on adaptive line integral convolution in combination with directional shock filtering. The smoothing process regularizes directional image features while the shock filter provides a sharpening effect. Both operations are guided by a flow field der...

Real-time video games are a unique domain for pathfinding and search. Traditional approaches to search have usually assumed static worlds with a single agent. But, in real-time video games there are multiple cooperative and adversarial agents. While the search space in most games is relatively small, algorithms are expected to plan in mere milliseconds. Thus, techniques such as abstraction are ...

We present a non-photorealistic rendering technique to transform color images and videos into painterly abstractions. It is based on a generalization of the Kuwahara filter that is adapted to the local shape of features, derived from the smoothed structure tensor. Contrary to conventional edge-preserving filters, our filter generates a painting-like flattening effect along the local feature dir...

ion refers to taking a semantic description of a specific instance of multimedia content (e.g. ‘Alex is shaking hands with Ana’ in the image shown in Figure 8.1) and generalizing it either to multiple instances of multimedia content (media abstraction, e.g. ‘Alex is shaking hands with Ana’ for any picture or video including the images and videos shown in Figure 8.2) or to a set of concrete sema...

Key frames play an important role in video annotation. It is one of the widely used methods for video abstraction as this will help us for processing a large set of video data with sufficient content representation in faster way. In this paper a novel approach for key-frame extraction using entropy value is proposed. The proposed approach classifies frames based on entropy values as global feat...

Video transmission in wireless environments is a challenging task calling for high-compression efficiency as well as a network friendly design. Both have been major goals of the H.264/AVC standardization effort addressing “conversational” (i.e., video telephony) and “nonconversational” (i.e., storage, broadcast, or streaming) applications. The video compression performance of the H.264/AVC vide...

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...

Video transmission in wireless environments is a challenging task calling for high compression efficiency as well as a network friendly design. These have been major goals of the H.264/AVC standardization effort addressing “conversational” (i.e., video telephony) and “non-conversational” (i.e., storage, broadcast, or streaming) applications. The video compression performance of the H.264/AVC Vi...

Live coding is a way of improvising music or video animation through live edits of source code, using dynamic language interpreters. It requires artists to represent their work within a formal computer language, using a higher level of abstraction than is the norm. Although the only creative agents in live coding performance are human, this abstraction makes the practice of interest to the fiel...

To provide users with an overview of medical video content at various levels of abstraction which can be used for more efficient database browsing and access, a hierarchical video summarization strategy has been developed and is presented in this paper. To generate an overview, the key frames of a video are preprocessed to extract special frames (black frames, slides, clip art, sketch drawings)...