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Publikováno v:
ICIP
This paper presents the theoretical analysis and simulation of noncausal directional intra prediction for image and video coding, where noncausal pixels, that is, pixels inside, below, or to the right of the target block, are used to predict the bloc
Publikováno v:
ICIP
We address the problem of image de-quantization, which is also known as bit-depth expansion if the reconstructed 2D signal is re-quantized into higher bit-precision. In this paper, a novel image de-quantization method based on convex optimization the
Autor:
Jaejoon Lee, Ilsoon Lim
Publikováno v:
ICIP
In this paper, we present a novel depth map coding scheme to improve coding efficiency. For this purpose, we develop an adaptive nonlocal range filter that restores the coded depth map by the noise suppression. Unlike the previous works that adapted
Autor:
J-P. Antoine, Patrice Brault
Publikováno v:
ICIP
Motion analysis and in particular, speed and rotation analysis, has been introduced in the 80s using the continuous wavelet transform(CWT) with Morlet wavelets. The motion-tuned WT appeared to be an efficient framework and an alternative to the optic
Publikováno v:
ICIP
Free-Viewpoint Video (FVV) is a novel technique which creates virtual images of multiple direction by view synthesis. In this paper, an exemplar-based depth-guided inpainting algorithm is proposed to fill disocclusions due to uncovered areas after pr
Publikováno v:
ICIP
RGB-to-YUV conversion reduces the inter-channel redundancy in video compression. However, inter-channel correlation is still observed locally. In HEVC HM4.0, LM mode uses a linear model to predict chroma from luma as a chroma intra prediction mode. T
Publikováno v:
ICIP
We propose a novel method for detecting multiple planar structures in a scene from a depth image, and estimating their parametric models in real time. To realize this goal we split an entire depth image into small patches. Initially, we assume that a
Publikováno v:
ICIP
This paper presents a block-overlap-based validity metric in the context of hybrid de-interlacing. The proposed metric uses the degree of motion-compensated block overlap as a measure of motion vector (MV) validity. In contrast to other validity meth
Publikováno v:
ICIP
In this work, an algorithm is proposed to scramble an JPEG compressed image without causing bitstream size expansion. The causes of bitstream size expansion in the existing scrambling methods are first identified. Three recommendations on AC coeffici
Autor:
Jen-Hui Chuang, Kuo-Hua Lo
Publikováno v:
ICIP
A correspondence measure of 2D line segments in two different views is proposed in this paper. Such a quantitative measure is view-invariant and can handle line segment of arbitrary configuration in the 3D scene. A line-based people localization sche