KR20110011047U - A method of creating an auto-stereoscopic image with minimized pseudoscopic 3D effect - Google Patents

Abstract

In order to realize autostereoscopic images using lenticular lens and barrier-screen, the present invention is suitable for observers in interlacing, which is a process of mixing multiple angle images into a single image. Proper viewing distance, which is essential for autostereoscopic images, is prevented by dizziness caused by double images caused by the creation of psuedoscopic 3D by inversion of left and right images, which occurs when the stereoscopic gaze angle and the stereoscopic gaze are out of proper stereoscopic gaze. It is about minimizing the range of gaze angle.

Description

A method of creating an auto-stereoscopic image with minimized pseudoscopic 3D effect

In the implementation of lenticular lens and barrier-screen autostereoscopic images, left and right combinations of multiple angle images existing between the extreme left and the extreme right are dependent on the shift of the observer's viewing position. Coupling occurs when the left and right angles are reversed, resulting in two phases due to reversed parallax, resulting in dizziness. Minimizing the left and right pseudoscopic 3D limits the gaze and viewing angle. This is to generate an autostereoscopic 3D image which minimizes eye fatigue.

In the conventional method of obtaining autostereoscopic images of lenticular lenses and barrier screens, images obtained from a plurality of different viewing angles are combined into one to realize stereoscopic images through the field separation function of lenticular lenses and barrier screens. In interlacing, which combines images of various angles up to one image, the pixels of each image are sequentially arranged from the top left to the top right or vice versa in units of pixels or sub-pixels according to the total number of images. As it is made by mixing, as in the example of FIG. 1 (upper left 1, upper right 8), the observer feels three-dimensional through the combination of the upper left and the upper right. However, due to the limited number of images, the right eye to enter the right eye does not exist in the left eye as shown in the example of FIG. 3, so the right eye to return to the polar left is entered into the right eye. Left and right inverted images, which are not suitable for the left and right eyes, come in and the left and right inversions occur, causing double images to cause dizziness, which is called left and right stereoscopic 3D. It is well known that the dizziness caused by the double image has been an obstacle in the commercialization of autostereoscopic stereoscopic images.

In the generation of lenticular lenses and barrier-screen autostereoscopic images generated by combining images of different angles into one image, the leftmost and rightmost images are left, right and left as shown in FIG. Right and right eye images do not come in 1, 2 right angles, as shown in Figure 3, the right and left eyes 8 and the extreme right number 1 is entered in the left eye as shown in Fig. Solving the problem is the subject of the present invention.

In order to solve the problem, even if the last image used in the interlacing and the first image are combined in such a way that the normal combination of the left and right images is infinitely repeated, the horizontally continuous ones maintain a constant parallax interval so that the left and right inversion does not occur. Using stereotyped images, they are interlaced into a set of infinitely repeating images with no distinction between the last image or the first image in the real world. If left, the left and right inversion is prevented. On the contrary, the stereoscopic image which minimized the dizziness by minimizing the reversed parallax generated by combining the left and right images after arranging the remaining images in reverse order after a certain number of normal arrays of the multi-angle images to be interlaced. You can also create

Using the continuous images of the present invention, the left and right inverted stereoscopic phenomena at the ends of the left and right combinations starting at the extreme left and ending at the extreme right enter the right eye and do not form an image of the right angle to the left and right eyes. By eliminating the dizziness caused by the double phase and applying a stereotyped image of different size having different parallax values to the same stereoscopic image, stereoscopic images having different depths can be produced. In addition, if the method is applied to the background (invisible stereoscopic) and the object is projected out of the surface of the image to minimize the left and right inversion through the reversed image array, it can provide a comfortable three-dimensional feeling of the visible objects and minimize the dizziness of the projected image. have.

FIG. 1 illustrates an example of combining left and right images to the observer's eye through interlacing in the case where there are eight images including the polar upper left (1) and the extreme right upper right (8). It shows the interlacing by dividing the whole image into pixel or sub-pixel unit. When using 8-angle image, the number of sets is decided according to the size of the final stereoscopic image.
FIG. 2 illustrates an example of combining left and right images to the observer's eye through interlacing in the case of eight images of the whole eye including the left and right upper poles. The combination of the upper right is illustrated as changing from FIG. 1 to FIG. 2.
Fig. 3 shows an example of combining left and right images to the observer's eye through interlacing when the image of the entire multi-angle including the upper left and the right upper right is eight. Fig. 3 shows an example in which the upper left polarity enters the right eye and the left and right inverted stereograms are induced.
4 shows an example of a series of standardized images having a constant interval, and the intervals of the images (logo or figure, etc.) a to wh are the same as the intervals 1 to 4.
5 is a diagram illustrating an example in which the images (logo or figure, etc.) a to wh and the images A to F have different values such as the intervals 1 to 4 and the intervals a to e in the interval.
6 illustrates a central angle image composed of # 1 to # 5, an extreme right image composed of # 6 to # 10, and a polar left image composed of # 11 to # 15, and 'P' represents an image when three images are generated. It is an example in which parallax is shown.
FIG. 7 illustrates an example in which a constant number of images 1 to 5 are normally arranged and the remaining images are arranged in reverse order and interlaced.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating the principle of interlacing for generating autostereoscopic images, which is the basis of the present invention. For example, eight different angle images may be pixel-by-pixel or 1 / 3-pixel (sub-pixel) units. When the observer moves the observation position from left to right, the image coming into the left and right eyes is sequentially changed from 1 and 2 to 2 and 3, respectively. When the observer's position continuously moves to the right as shown in the figure, when the observation point enters 8, the extreme right in the left eye and 1, the extreme left in the right eye, the three-dimensional object, which is projected or enters inward, is conversed in a double image ( Ghosting occurs, and this dual phase has been raised as a chronic problem that causes dizziness in the stereoscopic stereotypes and degrades stereoscopic quality. Therefore, the present invention uses the standardized horizontal continuous image (a to ㅁ) of FIG. 4 to set the same interval (interval 1 to 4) between each image to have the same parallax value shown in FIG. Even when the extreme right image composed of 6 ~ # 10 and the polar left image composed of # 11 ~ # 15 are combined, 'X' and 'Y' have the same parallax value 'P' of the same type, so there is no left and right inversion. Normal left and right disparity is combined. In other words, 'X' in the extreme right, '# 11' in the extreme left, and '#' in the extreme left and '# 10' in the extreme left are located at the same position, but each image (logo, figure, etc.) has the same time difference value. It says to apply. In addition, the horizontally continuous images of a to ㅁ and the horizontally continuous images of A to F of FIG. 5 have different parallax values, and thus have a different sense of space when viewed in three dimensions, thereby enabling stereoscopic expression of various depths. Three-dimensional transformation program or commercialization based on distance map in the method of generating images such that 'X' in the extreme right and 'Y' in the extreme left appear and the objects in the extreme left and the extreme right coincide. Graphic editing programs such as Photoshop and Illustrator can be used to build various logos and figures.

In addition, the image arrangement in the reverse order (4 to 2) of FIG. 7 obtains a 1/8 fh reduced inversion parallax of the left and right inversion parallaxes according to the prior art. You can enjoy the normal three-dimensional effect.

Therefore, the ratio of the images in the normal order and the reverse order can be adjusted to properly compromise the two purposes of reduction of stereoscopic and dizziness, but the most suitable method may be ideal to apply the reverse order after half of the total number of images to be interlaced. have.

Claims (3)

In the interlacing process, which is a process of mixing a limited multi-angle image for generating an autostereoscopic image using a lenticular lens or a barrier screen, an image having a constant horizontal interval (logo or When creating a multi-angle image using a figure, etc., the parallax value is superimposed so that successive objects such as 'X' in the extreme right and # 11 in the extreme left and # 10 in the extreme left and # 10 in the extreme left are overlapped at the same position. The method of repeating infinitely without distinguishing between the upper left and the extreme right by applying includes a method of constructing various three-dimensional effects by using objects to which different parallax values are applied, such as a to ㅁ and A to F of FIG. 5. Arrangement of residual images in reverse order after successive normal arrangement of 1 to 5 in FIG. 7 in interlacing, which is a process of mixing angular stereoscopic images using lenticular lenses or barrier screens. Method to polarize the reversed parallax generated in the process of combining the upper left and the upper right images, and the interlacing is performed by arranging a certain number of the total number of images to be interlaced in the normal order and then in the reverse order.
In interlacing, which is a process of mixing angular stereoscopic images using lenticular lenses or barrier screens, objects that appear in the autostereoscopic images are continuously horizontal as shown in Fig. 4A. When creating a multi-angle image using images having a regular interval, such as a logo or a figure, consecutive objects such as 'X' in the extreme right and # 11 in the extreme left and # 10 in the extreme left and # 10 in the extreme right in FIG. The parallax value is applied so that the parallax value is overlapped at the same position so that the object is repeated infinitely without distinguishing between the upper left and the upper right. In the image construction for the object that is composed of various three-dimensional images and protrudes out of the surface of the autostereoscopic image, the continuous normal times of 1 to 5 of FIG. Afterwards, the remaining images are arranged in reverse order to minimize the reversed parallax that occurs in the process of combining the upper left and the upper right images. Arranging and interlacing, that is, a method in which both claims 1 and 2 are applied

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