US-20260129145-A1 - THREE-DIMENSIONAL DISPLAY METHOD FOR VIDEO CONFERENCE AND VIDEO CONFERENCE SYSTEM

Abstract

A three-dimensional display method for video conference and the video conference system are provided. The three-dimensional display method includes the following steps. A first electronic device generates an image. The first electronic device encodes a hidden watermark in the image. The first electronic device transmits the image to a second electronic device. The second electronic device displays the image in a window of a display frame. The second electronic device searches for a rectangular box on the display frame. The second electronic device determines whether the hidden watermark is decoded in the rectangular box. If the hidden watermark is decoded in the rectangular box, the second electronic device performs a stereoscopic imaging process for the content of the rectangular box.

Inventors

• Chi-Kang LEE
• Shih-Hao Lin
• Sergio CANTERO CLARES
• Pei-Yang TSAI

Assignees

• ACER INCORPORATED

Dates

Publication Date

20260507

Application Date

20250806

Priority Date

20241101

Claims (20)

1. 1 . A three-dimensional display method for a video conference, comprising: generating an image by a first electronic device; encoding a hidden watermark in the image by the first electronic device; transmitting the image to a second electronic device by the first electronic device; displaying the image in a window of a display frame by the second electronic device; searching for a rectangular box on the display frame by the second electronic device; determining whether the hidden watermark is decoded in the rectangular box by the second electronic device; and performing a stereoscopic imaging process for a content of the rectangular box by the second electronic device, if the hidden watermark is decoded in the rectangular box.
2. 2 . The three-dimensional display method for the video conference according to claim 1 , wherein the first electronic device encodes the hidden watermark in an entire area of the image.
3. 3 . The three-dimensional display method for the video conference according to claim 1 , wherein the image is a side-by-side image.
4. 4 . The three-dimensional display method for the video conference according to claim 1 , wherein the second electronic device displays the image with a naked-eye stereo display.
5. 5 . The three-dimensional display method for the video conference according to claim 1 , wherein the second electronic device only performs the stereoscopic imaging process for the content of the rectangular box, and does not perform the stereoscopic imaging process for a content outside the rectangular box.
6. 6 . The three-dimensional display method for the video conference according to claim 1 , wherein the hidden watermark is spread over a plurality of pixels.
7. 7 . The three-dimensional display method for the video conference according to claim 1 , wherein the hidden watermark is spread over a plurality of pixels in an entire area of the image.
8. 8 . A three-dimensional display method for a video conference, comprising: generating an image by a first electronic device; searching for an object in the image by the first electronic device; encoding a hidden watermark in the object of the image by the first electronic device; transmitting the image to a second electronic device by the first electronic device; displaying the image on a display frame by the second electronic device; searching for an object region in the display frame by the second electronic device; determining whether the hidden watermark is decoded in the object region by the second electronic device; and performing a stereoscopic imaging process for a content of the object region by the second electronic device, if the hidden watermark is decoded in the object region.
9. 9 . The three-dimensional display method for the video conference according to claim 8 , wherein the first electronic device encodes the hidden watermark in a partial area of the image.
10. 10 . The three-dimensional display method for the video conference according to claim 8 , wherein the image is a side-by-side image.
11. 11 . The three-dimensional display method for the video conference according to claim 8 , wherein the second electronic device displays the image with a naked-eye stereo display.
12. 12 . The three-dimensional display method for the video conference according to claim 8 , wherein the second electronic device only performs the stereoscopic imaging process for the content of the object region, and does not perform the stereoscopic imaging process for a content outside the object region.
13. 13 . The three-dimensional display method for the video conference according to claim 8 , wherein the object region is an irregular shape.
14. 14 . The three-dimensional display method for the video conference according to claim 8 , wherein the hidden watermark is spread over a plurality of pixels.
15. 15 . A video conference system, comprising: a first electronic device, including: an image generation unit, used for generating an image; a watermark encoding unit, used for encoding a hidden watermark in the image; and a first transmission unit, used for transmitting the image; and a second electronic device, including: a second transmission unit, used for receiving the image; a display unit, used for displaying the image in a window of a display frame; a square searching unit, used for searching for a rectangular box on the display frame; a watermark decoding unit, used for determining whether the hidden watermark is decoded in the rectangular box; and a stereo imaging unit, wherein if the hidden watermark is decoded in the rectangular box, the stereo imaging unit performs a stereoscopic imaging process for a content of the rectangular box.
16. 16 . The video conference system according to claim 15 , wherein the first electronic device encodes the hidden watermark in an entire area of the image.
17. 17 . The video conference system according to claim 15 , wherein the image is a side-by-side image.
18. 18 . The video conference system according to claim 15 , wherein the second electronic device displays the image with a naked-eye stereo display.
19. 19 . The video conference system according to claim 15 , wherein the second electronic device only performs the stereoscopic imaging process for the content of the rectangular box, and does not perform the stereoscopic imaging process for a content outside the rectangular box.
20. 20 . The video conference system according to claim 15 , wherein the hidden watermark is spread over a plurality of pixels.

Description

This application claims the benefit of Taiwan application Serial No. 113141841, filed November 1, 2024, the disclosure of which is incorporated by reference herein in its entirety. TECHNICAL FIELD The disclosure relates in general to a display method and a conference system, and more particularly to a three-dimensional display method for a video conference and a video conference system. BACKGROUND In recent years, the application of 3D images has become more and more widespread, from the early 3D glasses to the current naked-eye 3D displays. Especially when conducting a video conference, it may be necessary to display a 3D object. At this time, if the object can be presented in a 3D way, it can give the other party an immersive visual experience, making the meeting process closer to the actual situation and making the meeting more smooth. SUMMARY The present disclosure relates to a three-dimensional display method for a video conference and a video conference system, which encodes a hidden watermark into an image, so that when the image is transmitted to other electronic devices, a three-dimensional image could be obtained based on the decoded hidden watermark. According to one embodiment, a three-dimensional display method for a video conference. The three-dimensional display method for the video conference includes the following steps. A first electronic device generates an image. The first electronic device encodes a hidden watermark in the image. The first electronic device transmits the image to a second electronic device. The second electronic device displays the image in a window of a display frame. The second electronic device searches for a rectangular box on the display frame. The second electronic device determines whether the hidden watermark is decoded in the rectangular box. If the hidden watermark is decoded in the rectangular box, the second electronic device performs a stereoscopic imaging process for the content of the rectangular box. According to another embodiment, a three-dimensional display method for a video conference is provided. The three-dimensional display method for the video conference includes the following steps. A first electronic device generates an image. The first electronic device searches for an object in the image. The first electronic device encodes a hidden watermark in the object of the image. The first electronic device transmits the image to a second electronic device. The second electronic device displays the image on a display frame. The second electronic device searches for an object region in the display frame. The second electronic device determines whether the hidden watermark is decoded in the object region. The second electronic device performs a stereoscopic imaging process for a content of the object region, if the hidden watermark is decoded in the object region. According to an alternative embodiment, a video conference system is provided. The video conference system includes a first electronic device and a second electronic device. The first electronic device includes an image generation unit, a watermark encoding unit and a first transmission unit. The image generation unit is used for generating an image. The watermark encoding unit is used for encoding a hidden watermark in the image. The first transmission unit is used for transmitting the image. The second electronic device includes a second transmission unit, a display unit, a square searching unit, a watermark decoding unit and a stereo imaging unit. The second transmission unit is used for receiving the image. The display unit is used for displaying the image in a window of a display frame. The square searching unit is used for searching for a rectangular box on the display frame. The watermark decoding unit is used for determining whether the hidden watermark is decoded in the rectangular box. If the hidden watermark is decoded in the rectangular box, the stereo imaging unit performs a stereoscopic imaging process for a content of the rectangular box. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a three-dimensional display method for a video conference according to an embodiment of the present disclosure. FIG. 2 illustrates a block diagram of a video conference system according to an embodiment of the present disclosure. FIG. 3 is a flowchart illustrating a three-dimensional display method for the video conference according to an embodiment of the present disclosure. FIG. 4 illustrates a three-dimensional display method for the video conference according to another embodiment of the present disclosure. FIG. 5 illustrates a block diagram of a video conference system according to another embodiment of the present disclosure. FIG. 6 is a flowchart illustrating a three-dimensional display method for the video conference according to another embodiment of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in