Integral image processing device and vehicular lamp using same

Patent metadata

Field	Value
Publication number	US-11275255-B2
Application number	US-201615762353-A
Country	US
Kind code	B2
Filing date	Sep 26, 2016
Priority date	Sep 25, 2015
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

According to embodiments, a display unit of an integral image processing device, which includes the display unit which reproduces all the elemental images of a 3D object as a 3D image, may include: a light source; and a reproducing lens array for integrating a plurality of individual elemental images, which are included in a patterned image that has patterned all elemental images and comprises all elemental images, and reproducing the individual elemental images as a 3D image.

First claim

The invention claimed is:

1. An integral image processing apparatus comprising a display unit configured to reproduce an entire elemental image for a 3-dimensional (3D) object as a 3D image, the display unit comprising:
a light source;
a reproduction lens array comprising a first surface being planar and facing the light source and a second surface having a plurality of curvatures opposite to the first surface and having a positive focal length; and
a pattern layer receiving light from the light source and generating a patterned image, being disposed between the light source and the reproduction lens array and comprising a top surface in direct contact with the first surface of the reproduction lens array and a bottom surface in direct contact with the light source;
wherein the reproduction lens array integrating a plurality of individual elemental images, which are included in the patterned image obtained by patterning the entire elemental image and constituting the entire elemental image, and reproducing the individual elemental images as a stereoscopic image to which the second surface of the reproduction lens array faces, and the patterned image being transferred to the first surface and engraved on the first surface; and
wherein the display unit is configured to display a pattern of the patterned image.

2. The integral image processing apparatus according to claim 1 , wherein the display unit comprises a pattern film disposed between the light source and the reproduction lens array.

3. The integral image processing apparatus according to claim 1 , wherein the pattern of the patterned image is engraved on the first surface of the reproduction lens array in a form of roughness.

4. The integral image processing apparatus according to claim 1 , wherein the pattern of the patterned image is engraved on the first surface of the reproduction lens array in a form of intaglio.

5. The integral image processing apparatus according to claim 2 , comprising a pickup unit comprising an image capture device and configured to generate the patterned image.

6. The integral image processing apparatus according to claim 5 , wherein the pickup unit includes a pickup lens array configured to cause a plurality of rays emitted from the 3D object to pass therethrough to generate the plurality of individual elemental images, and the entire elemental image comprising the plurality of individual elemental images passing through the pickup lens array is engraved on the pattern film as the pattern of the patterned image.

7. The integral image processing apparatus according to claim 6 , wherein the pickup lens array has same characteristics as these of the reproduction lens array.

8. The integral image processing apparatus according to claim 5 , wherein the pickup unit models the 3D object, estimates an illuminance value of a pixel included in each of the plurality of individual elemental images after the modeled result passes through a pickup lens array, and generates data for the illuminance value with respect to coordinates of each pixel as the patterned image.

9. The integral image processing apparatus according to claim 2 , wherein a first separation distance between the pattern film and the reproduction lens array is determined as follows according to a first resolution of the reproduced stereoscopic image:
g=R I aδ
(where g denotes the first separation distance, R I denotes the first resolution, a denotes a second separation distance between the reproduction lens array and a center of the reproduced stereoscopic image, and denotes a size of a unit pixel of the patterned image).

10. The integral image processing apparatus according to claim 2 , wherein a first separation distance between the pattern film and the reproduction lens array and a second separation distance between the reproduction lens array and a center of the reproduced stereoscopic image are determined as follows according to a first resolution of the reproduced stereoscopic image and a second resolution of the patterned image:

g
a

=

R
I

R
D

(where g denotes the first separation distance, a denotes the second separation distance, R I denotes the first resolution, and R D denotes the second resolution).

11. The integral image processing apparatus according to claim 2 , wherein a view angle of the reproduced stereoscopic image is determined as follows:

tan
⁡

(

ψ
2

)

=

p

2
⁢
g

(where ψ denotes the view angle, p denotes a size of a unit lens constituting the reproduction lens array, and g denotes a first separation distance between the patterned image and the reproduction lens array).

12. The integral image processing apparatus according to claim 2 , wherein a depth of the reproduced stereoscopic image is defined by:

Δ
⁢

⁢
z

=

2
⁢

a
p

⁢

δ
I

(where Δz denotes the depth of the reproduced stereoscopic image, a denotes a second separation distance between the reproduction lens array and a center of the reproduced stereoscopic image, p denotes a size of a unit lens constituting the reproduction lens array, and δ I denotes a pixel size of the reproduced image).

13. The integral image processing apparatus according to claim 12 , wherein the pixel size of the reproduced image is defined as:

δ
I

=

a
g

⁢
δ

(where δ I denotes the pixel size of the reproduced image, g denotes a first separation distance between the pattern film and the reproduction lens array, a denotes the second separation distance between the reproduction lens array and the center of the reproduced stereoscopic image, and δ denotes the size of a unit pixel of the patterned image).

14. The integral image processing apparatus according to claim 12 , wherein a first resolution of the reproduced stereoscopic image is inversely proportional to the pixel size of the reproduced image.

15. The integral image processing apparatus according to claim 2 , wherein a second resolution of the patterned image is defined as:

Assignees

• Lg Innotek Co Ltd

Inventors

• Jung Ji Young
• Kim Sung Phil
• Joo Yang Hyun
• Choi Hyun Ho

Classifications

• H04N13/302

  for viewing without the aid of special glasses, i.e. using autostereoscopic displays · CPC title

• F21S43/26

  Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255 · CPC title

• G02B30/27 Primary

  involving lenticular arrays · CPC title

• H04N13/275

  from three-dimensional [3D] object models, e.g. computer-generated stereoscopic image signals · CPC title

• H04N13/307 Primary

  using fly-eye lenses, e.g. arrangements of circular lenses · CPC title