Resampling, Antialiasing, and Compression in Multiview 3-D Displays

Zwicker, M.; Vetro, A.; Yea, S.; Matuskik, W.; Pfister, H.; Durand, F.

doi:10.1109/msp.2007.4317468

Cited by 6 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inter-perspective aliasing (between views) is avoided when details are within a distance to the display plane such that − Δ /(Δ + Δ ) < < Δ /(Δ − Δ ). This corresponds to the slopes between the limiting slopes of / = ±Δ /∆ in the ray-space spectrum 13 . Fig.…”

Section: Sampling Of Ray-spacementioning

confidence: 99%

A locally content-dependent filter for inter-perspective anti-aliasing

et al. 2012

View full text Add to dashboard Cite

Presentations on multiview and lightfield displays have become increasingly popular. The restricted number of views implies an unsmooth transition between views if objects with sharp edges are far from the display plane. The phenomenon is explained by inter-perspective aliasing. This is undesirable in applications where a correct perception of the scene is required, such as in science and medicine. Anti-aliasing filters have been proposed in the literature, and are defined according to the minimum and maximum depth present in the scene. We suggest a method that subdivides the ray-space and adjusts the anti-aliasing filter to the scene contents locally. We further propose new filter kernels based on the ray space frequency domain that assures no aliasing, yet keeping maximum information unaltered. The proposed method outperforms filters of earlier works. Different filter kernels are compared. Details of the output are sharper using a proposed filter kernel, which also preserves the most information.

show abstract

Section: Sampling Of Ray-spacementioning

confidence: 99%

A locally content-dependent filter for inter-perspective anti-aliasing

et al. 2012

View full text Add to dashboard Cite

show abstract

“…The two-plane light field parameterization [Levoy and Hanrahan 1996] has been applied to automultiscopic displays by Zwicker et al [2007] for prefiltering of multi-view content to prevent aliasing. Jones et al [2007] demonstrate a light field display with a full 360 degree field of view.…”

Section: Light Field Capture Display and Compressionmentioning

confidence: 99%

“…Our work touches on light field compression [Levoy and Hanrahan 1996;Zwicker et al 2007]. Here we evaluate low-rank approximations of a 4D light field tensor defined by a series of image pairs.…”

Section: Light Field Capture Display and Compressionmentioning

confidence: 99%

“…In practice, at least 50 iterations are required for the PSNR to exceed 30 dB, leading to an average run-time of eight minutes per frame (see Figure 7). As observed by Zwicker et al [2007], the target light field should be prefiltered to prevent aliasing. Such prefiltering was not applied in our implementation, causing additional artifacts in the right-hand column of Figure 9.…”

Section: Softwarementioning

confidence: 99%

See 1 more Smart Citation

Content-adaptive parallax barriers

Lanman

Hirsch

Kim

et al. 2010

ACM SIGGRAPH Asia 2010 Papers on - SIGGRAPH ASIA '10

View full text Add to dashboard Cite

Figure 1: 3D display with content-adaptive parallax barriers. We show that light field display using dual-stacked LCDs can be cast as a matrix approximation problem, leading to a new set of content-adaptive parallax barriers. (Left, Top) A 4D light field, represented as a 2D array of oblique projections. (Left, Bottom) A dual-stacked LCD displays the light field using content-adaptive parallax barriers, confirming both vertical and horizontal parallax. (Middle and Right) A pair of content-adaptive parallax barriers, drawn from a rank-9 decomposition of the reshaped 4D light field matrix. Compared to conventional parallax barriers, with heuristically-determined arrays of slits or pinholes, content adaptation allows increased display brightness and refresh rate while preserving the fidelity of projected images. AbstractWe optimize automultiscopic displays built by stacking a pair of modified LCD panels. To date, such dual-stacked LCDs have used heuristic parallax barriers for view-dependent imagery: the front LCD shows a fixed array of slits or pinholes, independent of the multi-view content. While prior works adapt the spacing between slits or pinholes, depending on viewer position, we show both layers can also be adapted to the multi-view content, increasing brightness and refresh rate. Unlike conventional barriers, both masks are allowed to exhibit non-binary opacities. It is shown that any 4D light field emitted by a dual-stacked LCD is the tensor product of two 2D masks. Thus, any pair of 1D masks only achieves a rank-1 approximation of a 2D light field. Temporal multiplexing of masks is shown to achieve higher-rank approximations. Non-negative matrix factorization (NMF) minimizes the weighted Euclidean distance between a target light field and that emitted by the display. Simulations and experiments characterize the resulting content-adaptive parallax barriers for low-rank light field approximation.

show abstract

“…[3][4][5][6][7][8] This has the advantage of producing a result that in a single scalar value aggregates the quality of the complete data set of the 3D-image. Hence, it lends itself well to comparative studies where a single measurement using the metric also give rise to a single value.…”

Section: Previous Workmentioning

confidence: 99%

A novel quality metric for evaluating depth distribution of artifacts in coded 3D images

Olsson

Sjöström

2008

Stereoscopic Displays and Applications XIX

View full text Add to dashboard Cite

The two-dimensional quality metric Peak-Signal-To-Noise-Ratio (PSNR) is often used to evaluate the quality of coding schemes for different types of light field based 3D-images, e.g. integral imaging or multi-view. The metric results in a single accumulated quality value for the whole 3D-image. Evaluating single views -seen from specific viewing anglesgives a quality matrix that present the 3D-image quality as a function of viewing angle. However, these two approaches do not capture all aspects of the induced distortion in a coded 3D-image. We have previously shown coding schemes of similar kind for which coding artifacts are distributed differently with respect to the 3D-image's depth. In this paper we propose a novel metric that captures the depth distribution of coding-induced distortion. Each element in the resulting quality vector corresponds to the quality at a specific depth. First we introduce the proposed full-reference metric and the operations on which it is based. Second, the experimental setup is presented. Finally, the metric is evaluated on a set of differently coded 3D-images and the results are compared, both with previously proposed quality metrics and with visual inspection.

show abstract

Resampling, Antialiasing, and Compression in Multiview 3-D Displays

Cited by 6 publications

References 17 publications

A locally content-dependent filter for inter-perspective anti-aliasing

A locally content-dependent filter for inter-perspective anti-aliasing

Content-adaptive parallax barriers

A novel quality metric for evaluating depth distribution of artifacts in coded 3D images

Contact Info

Product

Resources

About