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Depth dependent filtering of image signal

An image signal and image technology, applied in the field of computer-readable codes, can solve the problem of small number of viewing directions, and achieve the effect of easy realization and multi-parallel realization

Active Publication Date: 2010-09-01
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem relates to the fact that the number of viewing directions may be rather small, typically 8 or 9, which may cause aliasing effects in certain viewing directions

Method used

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  • Depth dependent filtering of image signal
  • Depth dependent filtering of image signal
  • Depth dependent filtering of image signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] figure 1 and 2 illustrate an embodiment of a multi-view display, i.e., viewed from the side ( figure 1 ) and a sketch of the 3D lenticular display in top view (Fig. 2).

[0049] figure 1 The principle of 3D lenticular display is illustrated. The lenticular display is based on an LCD panel display 1 with a lens 2 attached in front of it. Lenses adapted to: for a specific viewing angle Viewer 3 only sees a subgroup of pixels in the underlying LCD. If appropriate values ​​are set to the subgroups of pixels associated with various different viewing directions, the viewer will see different images from the different viewing directions. In this way, viewer 3 sees a central view of the image, while the viewer will see a side view of the image from the perspective indicated at 6 .

[0050] Each lens covers a number of pixels 4 , 5 and projects the pixels out, as illustrated by the number of pixels indicated as 7 . The viewer sees one subset of pixels 4 with the right ey...

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Abstract

The invention pertains to rendering of image data for a multi-view display, such as image data for a lenticular auto-stereoscopic display. The method comprising the steps of receiving an image signal representing a first image, the first image comprising 3D image data, spatially filtering the first image signal to provide a second image signal, the second image signal representing a second image,the spatial filtering being such as a low- pass filter, a high-pass filter or a combination of a low-pass and a high-pass filter, a strength of the spatial filter is determined by a reference depth of the first image and a depth of an image element of the first image, and sample the second image to a plurality of sub-images, each sub-image being associated with a view direction of the image.

Description

technical field [0001] The invention relates to a method of rendering image data for a multi-view display. In particular, the invention relates to a method of rendering image data for a multi-view display by means of depth dependent spatial filters. The invention also relates to a multi-view display, a signal presentation system and computer readable code for implementing the method. Background technique [0002] A multi-view display is a display that can present different images to viewers according to the viewing direction, so that objects in the images can be viewed from different angles. An example of a multi-view display is an autostereoscopic display, which is capable of presenting a viewer's left eye with a different image than the right eye. Various multi-view display technologies exist, one such technology is lenticular based. A lenticular display is a parallax 3D display capable of displaying multiple images for different horizontal viewing directions. In this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/00H04N13/04G06T19/00H04N13/128
CPCH04N13/0415H04N13/0278H04N13/0404H04N13/0275H04N13/0018G06T15/005H04N13/275H04N13/279H04N13/305H04N13/317H04N13/122H04N13/128
Inventor B·G·B·巴伦布鲁格
Owner KONINKLIJKE PHILIPS ELECTRONICS NV