In-band motion compensated temporal filtering

Andreopoulos, Yiannis; Munteanu, Adrian; Barbarien, Joeri; Schaar, Mihaela van der; Cornelis, Jan; Schelkens, Peter

doi:10.1016/j.image.2004.05.007

Cited by 131 publications

(114 citation statements)

References 26 publications

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“…In this context, wavelets play a major role, being used to generate multiresolution representations of an input signal and to build scalable codecs based on them. Wavelet-based scalable codecs include well-known examples for images (Said and Pearlman, 1996;Munteanu et al, 1999;Taubman and Marcellin, 2001), for video (Taubman and Zakhor, 1994;Ohm, 1994;Andreopoulos et al, 2004), and were introduced for surfaces by Lounsbery et al (Lounsbery et al, 1997). Essentially, Lounsbery et al established the link between subdivision schemes and multiresolution analysis for meshes.…”

Section: Related Workmentioning

confidence: 99%

Rate-Distortion Optimized Wavelet-based Irregular Mesh Coding

Khalil

Munteanu

Lambert

2017

Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Application

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Abstract:This work investigates the optimization of mesh quality at lossy rates for a lossless scalable wavelet-based irregular mesh codec. Whereas previously proposed wavelet-based irregular mesh codecs offer coarse-grain resolution scalability, in this paper we propose a coding scheme which enables fine-grain quality scalability. This is done by avoiding the use of geometric data in the encoding process, which reduces dependencies within the data stream and allows for an unrestricted storage and transmission order of wavelet subband bitplanes and connectivity information. This in turn allows us to perform rate-distortion optimization, whereby the subband bitplanes to be encoded are determined by minimizing distortion subject to an overall target bitrate. Experimental results show that the proposed coding approach offers fine-grain quality scalability, achieves optimality in rate-distortion sense and improves compression performance over the state of the art.

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Section: Related Workmentioning

confidence: 99%

Rate-Distortion Optimized Wavelet-based Irregular Mesh Coding

Khalil

Munteanu

Lambert

2017

Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Application

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“…In fact, most recent interest in wavelet-based video coding has migrated away from the traditional hybrid MC-feedback architecture considered here in favor of motion-compensated temporal filtering (MCTF) in order to provide full fidelity, spatial, and temporal scalability. Recent MCTF-based video coders have employed the RDWT (e.g., [33,2,22]), while others have used meshes (e.g., [27,28]). Indeed, our recent work [31,30] has focused on combining uniform meshes and the RDWT within the MCTF framework and has produced a scalable coder with state-of-the-art rate-distortion performance.…”

Section: Introductionmentioning

confidence: 99%

Motion estimation and compensation in the redundant-wavelet domain using triangle meshes

Cui¹,

Wang²,

Fowler³

2006

Signal Processing: Image Communication

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In this paper, a technique is presented that incorporates an irregular triangle mesh into wavelet-domain motion estimation and compensation using a shift-invariant redundant-wavelet transform. The main contribution of this work resides in a demonstration that triangle-mesh motion estimation and compensation can be deployed more effectively in the redundant-wavelet domain thanks to a simple correlation operator that is robust to the prediction residual, a noise-like signal that hinders spatial-domain gradient-based efforts to locate image edges which persist from frame to frame. In the proposed technique, motion compensation takes place through an affine transform mapping triangles from one frame to the next, while the motion-compensated residual is downsampled to a non-redundant form which is then coded using any wavelet-based still-image coder. Experimental results indicate that the proposed technique significantly outperforms not only the usual spatial-domain approach to mesh-based motion estimation and compensation, but also the emerging wavelet-based coders that employ traditional block-based structures, particularly for sequences with fast or complex motion. r

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“…One is inter-frame wavelet coder [1], and the other is in-band wavelet coder [2] [3]. Inter-frame wavelet coders perform wavelet transform along temporal axis to generate temporal high pass and low pass frames in time domain.…”

Section: Introductionmentioning

confidence: 99%

New Forming Scheme of Reference of LL Band for In-Band Video Coding with Spatial Scalability

Piao

Park

2006

2006 International Conference on Image Processing

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In this paper, we proposed a new scheme of forming quarterpixel reference of LL band for in-band video coding with spatial scalability. The recently proposed leaky motion compensation and mode-based temporal filtering methods [5] have reduced the drifting error dramatically. However there still remains drifting error because of the use of high quality reference and the difference between high quality and low quality references [5]. In our method, a new reference is formed which gives PSNR higher than the low quality reference. The new reference is used instead of low quality reference in leaky and mode-based methods and experimental results show that improvement can be achieved in PSNR comparison with the existed ones.

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In-band motion compensated temporal filtering

Cited by 131 publications

References 26 publications

Rate-Distortion Optimized Wavelet-based Irregular Mesh Coding

Rate-Distortion Optimized Wavelet-based Irregular Mesh Coding

Motion estimation and compensation in the redundant-wavelet domain using triangle meshes

New Forming Scheme of Reference of LL Band for In-Band Video Coding with Spatial Scalability

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