Three-dimensional display method for video conference and video conference system

Abstract

The invention provides a stereoscopic display method for a video conference and a video conference system. The stereoscopic display method of the video conference comprises the following steps. A first electronic device generates an image. The first electronic device encodes a hidden watermark into an image. The first electronic device transmits an image to a second electronic device. The second electronic device displays the image on a window of a display picture. The second electronic device searches a rectangular frame on the display picture; the second electronic device determines whether the hidden watermark is decoded in the rectangular frame. If the hidden watermark is decoded in the rectangular frame, the second electronic device performs stereo imaging on the content of the rectangular frame.

Description

Technical Field

[0001] This invention relates to a display method and a conferencing system, and more particularly to a stereoscopic display method and a video conferencing system for video conferencing. Background Technology

[0002] In recent years, the application of stereoscopic imaging has become increasingly widespread, evolving from early stereoscopic glasses to today's naked-eye stereoscopic displays. Especially during video conferences, it may be necessary to display stereoscopic objects. Presenting objects in a stereoscopic manner provides the other party with a more immersive visual experience, making the meeting more realistic and thus facilitating its smoother operation. Summary of the Invention

[0003] This invention relates to a stereoscopic display method and system for video conferencing, which encodes images into hidden watermarks so that when the images are transmitted to other electronic devices, stereoscopic imaging can be obtained based on the decoded hidden watermarks.

[0004] According to one aspect of the present invention, a stereoscopic display method for video conferencing is provided. The stereoscopic display method for video conferencing includes the following steps: A first electronic device generates an image. The first electronic device encodes a hidden watermark into 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 screen. The second electronic device searches for a rectangular frame on the display screen. The second electronic device determines whether the hidden watermark is decoded within the rectangular frame. If the hidden watermark is decoded within the rectangular frame, the second electronic device performs stereoscopic imaging of the contents of the rectangular frame.

[0005] According to another aspect of the present invention, a stereoscopic display method for video conferencing is provided. The stereoscopic display method for video conferencing 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 into the object in the image. The first electronic device transmits the image to a second electronic device. The second electronic device displays the image on a display screen. The second electronic device searches for an object block on the display screen. The second electronic device determines whether the hidden watermark is decoded in the object block. If the hidden watermark is decoded in the object block, the second electronic device performs stereoscopic imaging of the content of the object block.

[0006] According to another aspect of the present invention, a video conferencing system is provided. The video conferencing 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 generates an image. The watermark encoding unit encodes a hidden watermark into the image. The first transmission unit transmits the image. The second electronic device includes a second transmission unit, a display unit, a grid search unit, a watermark decoding unit, and a stereoscopic imaging unit. The second transmission unit receives the image. The display unit displays the image in a window of a display screen. The grid search unit searches for a rectangular frame on the display screen. The watermark decoding unit determines whether a hidden watermark is decoded within the rectangular frame. If a hidden watermark is decoded within the rectangular frame, the stereoscopic imaging unit performs stereoscopic imaging of the contents of the rectangular frame.

[0007] According to another aspect of the present invention, a video conferencing system is provided. The video conferencing system includes a first electronic device and a second electronic device. The first electronic device includes an image generation unit, a first object search unit, a watermark encoding unit, and a first transmission unit. The image generation unit generates an image. The first object search unit searches for an object in the image. The watermark encoding unit encodes a hidden watermark into the object in the image. The first transmission unit transmits the image. The second electronic device includes a second transmission unit, a display unit, a second object search unit, a watermark decoding unit, and a stereoscopic imaging unit. The second transmission unit receives the image. The display unit displays the image on a display screen. The second object search unit searches for an object block on the display screen. The watermark decoding unit determines whether a hidden watermark is decoded in the object block. If a hidden watermark is decoded in the object block, the stereoscopic imaging unit performs stereoscopic imaging of the content of the object block. Attached Figure Description

[0008] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0009] Figure 1 An example illustrates a stereoscopic display method for video conferencing according to an embodiment of the present invention.

[0010] Figure 2 A block diagram illustrating a video conferencing system according to an embodiment of the present invention is shown.

[0011] Figure 3 A flowchart illustrating a stereoscopic display method for video conferencing according to an embodiment of the present invention is shown.

[0012] Figure 4 An example illustrates a stereoscopic display method for video conferencing according to another embodiment of the present invention.

[0013] Figure 5 A block diagram illustrating a video conferencing system according to another embodiment of the present invention is shown.

[0014] Figure 6 A flowchart illustrating a stereoscopic display method for video conferencing according to another embodiment of the present invention is shown.

[0015] Figure label:

[0016] 100, 300: First electronic device

[0017] 110, 310: Image generation unit

[0018] 320: First object search unit 320

[0019] 130,330: Watermark Encoding Unit

[0020] 140, 340: First transmission unit

[0021] 200, 400: Second electronic device

[0022] 210, 410: Second transmission unit

[0023] 220, 420: Display Unit

[0024] 230, 430: Grid search unit

[0025] 240,440: Watermark decoding unit

[0026] 250, 450: Stereo imaging unit

[0027] 900: Network

[0028] 1000, 3000: Video conferencing system

[0029] BX2: Rectangle

[0030] FM2, FM4: Display screen

[0031] IM1, IM3: Images

[0032] OB3: Object

[0033] OB4: Object Block

[0034] WM1, WM3: Hide watermark

[0035] S110, S130, S140, S210, S220, S230, S240, S250, S310, S320, S330, S340, S410, S420, S430, S440, S450: Steps Detailed Implementation

[0036] The technical terms used in this specification are based on common terminology in the field. Where this specification provides further explanation or definition of certain terms, the interpretation of those terms shall be based on the explanation or definition provided in this specification. Each embodiment of the present invention has one or more technical features. Where feasible, those skilled in the art may selectively implement some or all of the technical features in any embodiment, or selectively combine some or all of the technical features in the multiple embodiments.

[0037] Please refer to Figure 1 and Figure 2 , Figure 1 An example illustrates a stereoscopic display method for video conferencing according to an embodiment of the present invention. Figure 2 A block diagram illustrating a video conferencing system 1000 according to an embodiment of the present invention is shown. Figure 2 As shown, the video conferencing system 1000 includes a first electronic device 100 and a second electronic device 200. The first electronic device 100 includes an image generation unit 110, a watermark encoding unit 130, and a first transmission unit 140. The image generation unit 110 is used to perform an image generation process. The watermark encoding unit 130 is used to perform an encoding process. The first transmission unit 140 is used to perform a transmission process.

[0038] like Figure 2 As shown, the second electronic device 200 includes a second transmission unit 210, a display unit 220, a grid search unit 230, a watermark decoding unit 240, and a stereoscopic imaging unit 250. The second transmission unit 210 performs a transmission procedure. The display unit 220 displays various information, such as a naked-eye stereoscopic display. The grid search unit 230 performs a search procedure. The watermark decoding unit 240 performs a decoding procedure. The stereoscopic imaging unit 250 performs a stereoscopic imaging procedure.

[0039] The image generation unit 110, watermark encoding unit 130, grid search unit 230, watermark decoding unit 240, and / or stereo imaging unit 250 are, for example, a circuit, a circuit board, a storage device storing program code, or a chip. The chip is, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose microcontroller unit (MCU), microprocessor, digital signal processor (DSP), programmable controller, application-specific integrated circuit (ASIC), graphics processing unit (GPU), image signal processor (ISP), image processing unit (IPU), arithmetic logic unit (ALU), complex programmable logic device (CPLD), field-programmable gate array (FPGA), or other similar components or combinations thereof.

[0040] The first transmission unit 140 and the second transmission unit 210 are, for example, a wireless transmission module or a wired transmission module.

[0041] In the video conferencing system 1000, a hidden watermark WM1 can be encoded into the entire range of the image IM1 using a first electronic device 100, and the hidden watermark WM1 can be decoded from the image IM1 by a second electronic device 200, so as to quickly obtain a stereoscopic image. The operation of each component is explained in detail below with flowcharts.

[0042] Please refer to Figure 2 and Figure 3 , Figure 3 A flowchart illustrating a stereoscopic display method for video conferencing according to an embodiment of the present invention is shown. The stereoscopic display method for video conferencing includes steps S110, S130, S140, and S210 to S250. In step S110, as... Figure 1 and Figure 2As shown, the image generation unit 110 of the first electronic device 100 generates image IM1. After the dual lenses of the first electronic device 100 capture the left-eye image and the right-eye image, they are placed side by side to form image IM1. Image IM1 is a side-by-side image of the left and right eyes.

[0043] Next, in step S130, as Figure 1 and Figure 2 As shown, the watermark encoding unit 130 of the first electronic device 100 encodes a hidden watermark WM1 into the image IM1. The watermark encoding unit 130 encodes the hidden watermark WM1 into the entire range of the image IM1. The hidden watermark WM1 is a number of pixels scattered throughout the image IM1, and is imperceptible to the human eye.

[0044] Then, in step S140, as Figure 1 and Figure 2 As shown, the first transmission unit 140 of the first electronic device 100 transmits an image IM1 with a hidden watermark WM1.

[0045] Next, in step S210, as follows Figure 1 and Figure 2 As shown, the second transmission unit 210 of the second electronic device 200 receives the image IM1 with a hidden watermark WM1.

[0046] Then, in step S220, as Figure 1 and Figure 2 As shown, the display unit 220 of the second electronic device 200 displays the image IM1 on a window WD2 of a display screen FM2. During a video conference, the display screen FM2 is divided into several windows. Only window WD2 is used to display the image IM1.

[0047] Next, in step S230, as Figure 1 and Figure 2 As shown, the grid search unit 230 searches for rectangular frames BX2 on the display screen FM2 of the display unit 220. When the display screen FM2 is divided into several windows, the grid search unit 230 will find several rectangular frames BX2.

[0048] In step S240, as Figure 2As shown, the watermark decoding unit 240 determines whether the hidden watermark WM1 can be decoded within the rectangle BX2. If the watermark decoding unit 240 can decode the hidden watermark WM1 within the rectangle BX2, then proceed to step S250; if the watermark decoding unit 240 cannot decode the hidden watermark WM1 within the rectangle BX2, then return to step S110. The display screen FM2 of the display unit 220 may simultaneously include multiple rectangles BX2, and the grid search unit 230 and the watermark decoding unit 240 will search for the rectangle BX2 of the image IM1 containing the hidden watermark WM1.

[0049] Then, in step S250, as Figure 1 and Figure 2 As shown, the stereo imaging unit 250 performs stereo imaging on the contents of the rectangular frame BX2. In this step, the stereo imaging unit 250 of the second electronic device 200 only performs stereo imaging on the contents of the rectangular frame BX2, and does not perform stereo imaging on the contents outside the rectangular frame BX2.

[0050] According to the above-mentioned stereoscopic display method for video conferencing, the first electronic device 100 can encode the hidden watermark WM1 into the entire range of the image IM1, and the second electronic device 200 can decode the hidden watermark WM1 from the image IM1 to quickly obtain stereoscopic imaging.

[0051] Please refer to Figure 4 and Figure 5 , Figure 4 An example illustrates a stereoscopic display method for video conferencing according to another embodiment of the present invention. Figure 5 A block diagram illustrating a video conferencing system 3000 according to another embodiment of the present invention is shown. The video conferencing system 3000 includes a first electronic device 300 and a second electronic device 400. Figure 5 As shown, the first electronic device 300 includes an image generation unit 310, a first object search unit 320, a watermark encoding unit 330, and a first transmission unit 340. The image generation unit 310 is used to perform an image generation process. The first object search unit 320 is used to search for objects. The watermark encoding unit 330 is used to perform an encoding process. The first transmission unit 340 is used to perform a transmission process.

[0052] The second electronic device 400 includes a second transmission unit 410, a display unit 420, a second object search unit 430, a watermark decoding unit 440, and a stereoscopic imaging unit 450. The second transmission unit 410 performs a transmission procedure. The display unit 420 displays various information, such as a naked-eye stereoscopic display. The second object search unit 430 searches for objects. The watermark decoding unit 440 performs a decoding procedure. The stereoscopic imaging unit 450 performs a stereoscopic imaging procedure.

[0053] The image generation unit 310, the first object search unit 320, the watermark encoding unit 330, the second object search unit 430, the watermark decoding unit 440, and / or the stereoscopic imaging unit 450 are, for example, a circuit, a circuit board, a storage device storing program code, or a chip. The chip is, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose microcontroller unit (MCU), microprocessor, digital signal processor (DSP), programmable controller, application-specific integrated circuit (ASIC), graphics processing unit (GPU), image signal processor (ISP), image processing unit (IPU), arithmetic logic unit (ALU), complex programmable logic device (CPLD), field-programmable gate array (FPGA), or other similar components or combinations thereof.

[0054] The first transmission unit 340 and the second transmission unit 410 are, for example, a wireless transmission module or a wired transmission module.

[0055] In the video conferencing system 3000, a hidden watermark WM3 can be encoded into a specific object in the image IM3 using a first electronic device 300, and the hidden watermark WM3 can be decoded from the image IM3 by a second electronic device 400 to quickly obtain a stereoscopic image. The operation of each component is explained in detail below with flowcharts.

[0056] Please refer to Figure 5 and Figure 6 As shown, Figure 6 A flowchart illustrating a stereoscopic display method for video conferencing according to another embodiment of the present invention is shown. The stereoscopic display method for video conferencing includes steps S310-S340 and S410-S450. In step S310, as... Figure 4 and Figure 5 As shown, the image generation unit 310 of the first electronic device 300 generates image IM3. After the dual lenses of the first electronic device 300 capture the left-eye image and the right-eye image, they are placed side by side to form image IM3. Image IM3 is a side-by-side image of the left and right eyes.

[0057] Next, in step S320, as Figure 4 and Figure 5 As shown, the first object search unit 320 of the first electronic device 300 searches for an object OB3 in the image IM3.

[0058] Next, in step S330, as Figure 4 and Figure 5 As shown, the watermark encoding unit 330 of the first electronic device 300 encodes a hidden watermark WM3 into object OB3 of the image IM3. That is, the hidden watermark WM3 is only encoded in object OB3, not in the entire image IM3. The hidden watermark WM3 is scattered among several pixels in object OB3 and is imperceptible to the human eye.

[0059] Then, in step S340, as Figure 4 and Figure 5 As shown, the first transmission unit 340 of the first electronic device 300 transmits an image IM3 with a hidden watermark WM3.

[0060] Next, in step S410, as Figure 4 and Figure 5 As shown, the second transmission unit 410 of the second electronic device 400 receives the image IM3 with a hidden watermark WM3.

[0061] Then, in step S420, as Figure 4 and Figure 5 As shown, the display unit 420 of the second electronic device 400 displays the image IM3 on a display screen FM4.

[0062] Next, in step S430, as Figure 4 and Figure 5 As shown, the second object search unit 430 searches for an object block OB4 on the display screen FM4 of the display unit 420. The display screen FM4 may display several different objects, and the second object search unit 430 will find several object blocks OB4.

[0063] In step S440, as Figure 4 and Figure 5 As shown, the watermark decoding unit 440 determines whether the hidden watermark WM3 can be decoded in the object block OB4. If the watermark decoding unit 440 can decode the hidden watermark WM3 in the object block OB4, then proceed to step S450; if the watermark decoding unit 440 cannot decode the hidden watermark WM3 in the object block OB4, then return to step S310. The display screen FM4 of the display unit 420 may include multiple objects at the same time, and the second object search unit 430 and the watermark decoding unit 440 will search for the object block OB4 with the hidden watermark WM3.

[0064] Then, in step S450, as Figure 4 and Figure 5 As shown, the stereo imaging unit 450 performs stereo imaging on the contents of the object block OB4. In this step, the stereo imaging unit 450 of the second electronic device 400 only performs stereo imaging on the contents of the object block OB4, and does not perform stereo imaging on contents other than the object block OB4.

[0065] According to the stereoscopic display method of the above video conferencing, a hidden watermark WM3 can be encoded into a specific object in the image IM3 by the first electronic device 300, and the hidden watermark WM3 can be decoded from the image IM3 by the second electronic device 400 to quickly obtain stereoscopic imaging.

[0066] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. A stereoscopic display method for video conferencing, comprising: A first electronic device generates an image; The first electronic device encodes a hidden watermark into 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 screen; The second electronic device searches for a rectangular box on the display screen; The second electronic device determines whether the hidden watermark has been decoded within the rectangular frame; as well as If the hidden watermark is decoded within the rectangle, the second electronic device performs a stereoscopic imaging of the contents of the rectangle.

2. The stereoscopic display method for video conferencing as described in claim 1, characterized in that, The first electronic device encodes the hidden watermark into the entire range of the image.

3. The stereoscopic display method for video conferencing as described in claim 1, characterized in that, The image is a side-by-side image of the left and right eyes.

4. The stereoscopic display method for video conferencing as described in claim 1, characterized in that, The second electronic device displays the image using a naked-eye stereoscopic display.

5. The stereoscopic display method for video conferencing as described in claim 1, characterized in that, The second electronic device only performs stereoscopic imaging of the contents of the rectangle, and does not perform stereoscopic imaging of the contents outside the rectangle.

6. A stereoscopic display method for video conferencing, comprising: 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 into the object in the image; The first electronic device transmits the image to a second electronic device; The second electronic device displays the image on a display screen; The second electronic device searches for an object block on the display screen; The second electronic device determines whether the hidden watermark has been decoded in the object block; as well as If the hidden watermark is decoded in the object block, the second electronic device performs a stereoscopic image of the contents of the object block.

7. The stereoscopic display method for video conferencing as described in claim 6, characterized in that, The first electronic device encodes the hidden watermark into a portion of the image.

8. The stereoscopic display method for video conferencing as described in claim 6, characterized in that, The image is a side-by-side image of the left and right eyes.

9. The stereoscopic display method for video conferencing as described in claim 6, characterized in that, The second electronic device displays the image using a naked-eye stereoscopic display.

10. The stereoscopic display method for video conferencing as described in claim 6, characterized in that, The second electronic device only performs stereoscopic imaging of the contents of the object block, and does not perform stereoscopic imaging of the contents outside the object block.

11. The stereoscopic display method for video conferencing as described in claim 6, characterized in that, The object block is of an irregular shape.

12. A video conferencing system, comprising: A first electronic device, comprising: An image generation unit is used to generate an image; A watermark encoding unit is used to encode a hidden watermark into the image; and A first transmission unit for transmitting the image; and A second electronic device, comprising: A second transmission unit is used to receive the image; A display unit for displaying the image in a window of a display screen; A grid search unit is used to search for a rectangular box on the display screen; A watermark decoding unit is used to determine whether the hidden watermark is decoded within the rectangle; and If a stereo imaging unit decodes the hidden watermark within a rectangular frame, the stereo imaging unit performs stereo imaging on the contents of the rectangular frame.

13. A video conferencing system, comprising: A first electronic device, comprising: An image generation unit is used to generate an image; A first object search unit is used to search for an object in the image; A watermark encoding unit is used to encode a hidden watermark into the object of the image; A first transmission unit for transmitting the image; and A second electronic device, comprising: A second transmission unit is used to receive the image; A display unit for displaying the image on a display screen; A second object search unit is used to search for an object block on the display screen; A watermark decoding unit is used to determine whether the hidden watermark has been decoded in the object block; and If a stereo imaging unit decodes the hidden watermark in the object block, the stereo imaging unit performs stereo imaging on the contents of the object block.

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