HCI (hue-chroma-intensity) color model: A robust color representation under illumination changes

Kang, Hoon; Lee, Seung Hwan; Lee, Jayong

doi:10.1007/s12555-012-0513-3

Cited by 5 publications

(2 citation statements)

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“…Traditionally, there are two ways to obtain zooming images: one is up sampling processing; the other is down sampling processing. [6][7][8] For up sampling processing, it usually incurs much higher cost of hardware resources (e.g. memory usage) so that it is hard to design into embedded platform.…”

Section: Introductionmentioning

confidence: 99%

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Stepless digital zoom for high definition camera

et al. 2016

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Real-time full frame view of surveillance camera provides integral visual information of scene. High definition imaging and zooming are widely adopted when observers want to capture more detail information of targets. The optical zooming can provide high zoom ratio detail images of target as well as maintain imaging definition, however, it fails to obtain full view of scene when zoomed, and the field of observation decreases to region of target. Digital zooming is an effective approach to keep the balance between imaging field and visual detail information. This paper presents a method of stepless zooming for digital video camera which could be widely used in autonomous pan, tilt and zoom surveillance system. In view of hardware resources and algorithm realizability, an optimized zooming processing structure is proposed. According to input zoom ratio parameter, it can extract pixels of region of interest adaptively and display with original imaging size by mapping and interpolation algorithms. Experimental results indicate that the stepless zooming method can be capable of achieving 1080p high definition imaging and 30 frame/s video capture.

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Section: Introductionmentioning

confidence: 99%

“…memory usage) so that it is hard to design into embedded platform. [6] On the contrary, down sampling mode makes it possible to realize on hardware. [7,8] However, the traditional methods generally adapt step zoom which provide different zoom ratios by steps (e.g.…”

Section: Introductionmentioning

confidence: 99%