This paper presents an efficient method for the transmission of scalable video with error resilience over the Internet. We developed a Motion-JPEG2000-based software tool, called stream scaler, which can control the resolution levels and quality layers of codestreams to be adapted to end-user device requirements and to different bandwidth capacities. To analyze the performance of the stream sca...

automatic analysis of human facial expressions is one of the challenging problems in machine vision systems. it has many applications in human-computer interactions such as, social signal processing, social robots, deceit detection, interactive video and behavior monitoring. in this paper, we develop a new method for automatic facial expression recognition based on facial muscle anatomy and hum...

As digital video databases become more and more pervasive, finding video in large databases becomes a major problem. Because of the nature of video (streamed objects), accessing the content of such databases is inherently a time-consuming operation. Enabling intelligent means of video retrieval and rapid video viewing through the processing, analysis, and interpretation of visual content are, t...

We describe a novel integrated algorithm for realtime enhancement of video acquired under challenging lighting conditions. Such conditions include low lighting, haze, and high dynamic range situations. The algorithm automatically detects the dominate source of impairment, then depending on whether it is low lighting, haze or others, a corresponding pre-processing is applied to the input video, ...

We propose two design methodologies for synthesis of area-eecient Data Format Converters (DFCs) with high throughput rate. DFCs are grouped into various classes according to the speciication of design parameters. The rst design methodology is suitable for design of many representative classes of DFCs. The designs using this methodology are based on a two-dimensional architecture. They have maxi...

The compression of digital video data has many applications in the transmission and storage of video sequences. For moderate compression ratios there are many techniques which can provide satisfactory performance, for high compression ratios, however, typical compression techniques produce noticeable artifacts in the reconstructed video. This paper proposes a technique for the post-processing o...

Identification and verification of a video clip via its fingerprint find applications in video browsing, database search and security. The video is collapsed into a short fingerprint using a robust hash function based on signal processing operations. We propose two robust hash algorithms for video based on the Discrete Cosine Transform. The robustness and randomness properties of the proposed h...

Existing video plethysmography methods use standard red-green-blue (sRGB) video recordings of the facial region to estimate heart pulse rate without making contact with the person being monitored. Methods achieving high estimation accuracy require considerable signal-processing power and result in significant processing latency. High processing power and latency are limiting factors when real-t...