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An Internet-based security monitoring platform including a server and some clients is described in this paper for multimedia content authentication. Contents existed in the database of the server, can be discovered by the video hash copy detection technology and will be prevented from uploading. Watermark can be embedded into the videos when they are uploaded to the server in order to protect the...
Depth-image-based rendering (DIBR) has attracted more and more attention as a method of virtual view rendering in three-dimensional video (3DV) applications. Many efforts have been dedicated to realize high-quality rendering, ranging from pre-process of the reference depth images to post-process of the virtual texture images. A DIBR method based on inverse mapping and depth-aided image inpainting...
This study employed three units, ¡§Air and Combustion¡¨, ¡§Heat Effects toward Substances¡¨, and ¡§Healthy Diet¡¨, from the Science Education Website set by the Ministry of Education (Tainan) to assist students¡¦ learning. This multifunctional website offers teaching resources, interesting experiments, inquiry experiments, virtual animations, multi-assessments, and supplementary materials, which are...
Semi-automatic 2D-to-3D conversion becomes very popular in 3D contents creation due to its advantages over balancing the tradeoff between labor cost and 3D conversion effect. However, the key-frame extraction, as a very important step, has not been specifically put forward in the existing systems. In this paper, a novel key-frame extraction method based on cumulative occlusion is proposed for 2D-to-3D...
As web video databases tend to contain immense copies with the explosive growth of online videos, effective and efficient copy identification techniques are required for content management and copyrights protection. To this end, this paper presents a novel video hashing for video copy identification based on Locally Linear Embedding (LLE). It maps the video to a low-dimensional space through LLE,...
Video identification is extremely important in video browsing, database search and security. In this paper, we present a video hashing based on MDS (Multi-Dimensional Scaling) which is able to work under variable video transmission impairments and resistant to signal processing. In this method, each frame of the video is divided into blocks and compute its low and middle frequency DCT coefficients...
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