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Pedestrian detection for surveillance video, which is the basic of person re-identification, aims to capture the pedestrians in the monitors. However, the existing pedestrian detection algorithms still have two issues: (1) The recall and precision are not applicable for complicated scenes; (2) It is limited for processing the high-resolution video in real-time. Therefore, pedestrian detection algorithm...
Images/videos captured in low-light conditions often present low luminance and contrast. Although the existing algorithms can improve the subjective perception, color distortion and over-enhancement usually appear, which will disturb the subsequent intelligent analysis. Otherwise, due to high computational complexity, the existing algorithms are difficult to process a high resolution (HR) video (1280×720)...
For eÅÊã¸Ñ-time'"N`¬H eNÑ of¬HèÙÅÊ eÅÊN¬HÅÊ site, design and implementation of an embedded remote monitoring system Boa server to ARM9 S3C2440 processor core, expanding peripheral devices, using embedded Linux...
This paper presents a novel method for protecting H.264/AVC streaming. The issues on the compression domain video encryption have been pointed out and fully addressed. To optimize the tradeoff between security level and computational complexity, only the most significant bits for reconstructed video quality in H.264/AVC streaming are extracted and encrypted, including the codewords of intra-prediction...
In this paper, a PCA (Principal Component Analysis) based fast vector quantization coding method for spectral imagery has been proposed. Firstly, PCA is used to concentrate effective information of image into a few PCs (Principal Components). Then a PC selected method based on the eigenvalues is used to extract the PCs that contain the main information. Furthermore, an improved fast vector quantization...
Joint source channel coding (JSCC) is an effective method which trade off the efficiency and the quality of the video transmission. In this paper, a new rate-quality (R-Q) model is first proposed to represent the coding characteristics of H.264 instead of rate-distortion (R-D) model. Then, the end-to-end video transmission distortion is analyzed and an adaptive JSCC over wireless channel based on...
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