Moon Gi Kang

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The spatial resolution that represents the number of pixels per unit area in an image is the principal factor in determining the quality of an image. With the development of image processing applications, there is a big demand for high-resolution (HR) images since HR images not only give the viewer a pleasing picture but also offer additional detail that is(More)
This paper presents a design of the real time digital image enhancement preprocessor for CMOS image sensor. The CMOS image sensor offers various advantages while it provides lower-quality images than CCD does. In order to compensate for the physical limitation of CMOS sensor the spatially adaptive contrast enhancement algorithm was incorporated into the(More)
This paper proposes a new boundary coding algorithm suitable for an object-based image sequence coding system. The boundary is approximated by a polygon which can be encoded with the smallest number of bits for maximum distortion. The temporal redundancy between two successive frames is efficiently removed with the proposed scheme, resulting in lower(More)
This paper presents a new video codec which is based on 2-0 triangular mesh-based motion compensation and two step grid point motion estimation. With this approach the efJlciency of compression and the quality of reconstructed images are improved The compensation of motion for each triangular patch is performed by image warping using motion vectors ut the(More)
In this paper, we propose a digital zooming algorithm to reconstruct a high-resolution image from multiple aliased low resolution images, which is based on the generalized deconvolution technique. The conventional approaches are based on the discrete Fourier transform (DFT) since the aliasing effect is easily analyzed in the frequency domain. However, the(More)
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