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Single feature of pedestrian is difficult to accurately describe the target using traditional algorithms. A new reidentification algorithm combing global features and local features with different distance metric function is introduced. First, weighted color histogram feature for whole pedestrian is extracted and combined with Bhattacharyya distance to roughly recognize targets. Then pedestrians’...
This paper presents a novel approach of video fire detection by the features of fire extracted in radiant energy domain. Firstly, a fire color model in YCbCr color space is applied to extract fire-colored pixels as candidate regions of fire. Secondly, we convert the color space of the candidate regions into radiant energy domain through camera calibration in advance and model six features of fire...
This paper proposes a novel, octagonal shaped CMOS image sensor (CIS) array for use in tandem with colored LED illumination and a corresponding, innovative pixel scanning method. The octagonal shape of the pixel array allows the CIS to make near-optimal use of silicon real estate by matching the perimeter of the pixel array to the focal plane area of lenses used in Wireless Capsule Endoscopies (WCE)...
In order to be better for color image edge detection,this paper analyze the existing problems of gradient algorithm with HSV color image characteristics and the separation by color hue, saturation and brightness information and proposes a color image edge detection method based on gradient extreme value of the local region. The algorithm extracts the edge pixels directly in the local area boundary...
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