System and method for video call
First Claim
Patent Images
1. A system for video call, comprising:
- one or more terminals configured to transmit images obtained by capturing video call users; and
a video call control server configured to generate a combined image by combining the images transmitted by the one or more terminals, and to transmit the combined image to the terminals,wherein the respective images are rotated according to information on orientations, which indicates how much the terminals are rotated with respect to a reference orientation, sensed by the terminals and combined into the combined image,wherein the video call control server separately generates as many combined images as there are different aspect ratios among the images transmitted by the terminals, andwherein each of the terminals transmits, to the video call control server, reference aspect ratio information indicating a width-to-height ratio of said each of the terminals in the reference orientation.
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Abstract
Provided are a system and method for a video call. The system for a video call includes one or more terminals configured to transmit images obtained by capturing video call users, and a video call control server configured to generate a combined image by combining the images transmitted by the one or more terminals, and transmit the combined image to the terminals. Here, the respective images are rotated according to information on orientations sensed by the terminals, and combined into the combined image.
10 Citations
22 Claims
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1. A system for video call, comprising:
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one or more terminals configured to transmit images obtained by capturing video call users; and a video call control server configured to generate a combined image by combining the images transmitted by the one or more terminals, and to transmit the combined image to the terminals, wherein the respective images are rotated according to information on orientations, which indicates how much the terminals are rotated with respect to a reference orientation, sensed by the terminals and combined into the combined image, wherein the video call control server separately generates as many combined images as there are different aspect ratios among the images transmitted by the terminals, and wherein each of the terminals transmits, to the video call control server, reference aspect ratio information indicating a width-to-height ratio of said each of the terminals in the reference orientation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for a video call, comprising:
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transmitting, at one or more terminals, images obtained by capturing video call users; generating, at a video call control server, a combined image by combining the images transmitted by the one or more terminals; and transmitting, at the video call control server, the combined image to the terminals, wherein the respective images constituting the combined image are rotated according to information on orientations, which indicates how much the terminals are rotated with respect to a reference orientation, sensed by the terminals and combined, wherein the generating comprises separately generating as many combined images as there are different aspect ratios among the images transmitted by the terminals, wherein transmitting the images comprises transmitting, at each of the terminals, reference aspect ratio information indicating a width-to-height ratio of said each of the terminals in the reference orientation, to the video call control server. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A video call control server, comprising:
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a communicator configured to receive orientation information on one or more terminals, which indicates how much the terminals are rotated with respect to a reference orientation, and images obtained by capturing the corresponding video call users from the one or more terminals; an image rotator configured to rotate an image required to be rotated to the reference orientation according to the orientation information among the images received by the communicator to the reference orientation; and a combined image generator configured to generate a combined image by combining an image not required to be rotated to the reference orientation among the images received by the communicator and the image having been rotated to the reference orientation by the image rotator among the images received by the communicator, wherein the communicator transmits the combined image to the respective terminals, wherein the combined image generator separately generates as many combined images as there are different aspect ratios among the images transmitted by the terminals, wherein the communicator receives, from the respective terminals, reference aspect ratio information indicating a width-to-height ratio of the respective terminals in the reference orientation. - View Dependent Claims (18, 19)
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20. A video call control server, comprising:
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a communicator configured to receive images obtained by capturing video call users from one or more terminals; an image analyzer configured to detect screen modes of the respective terminals from the received images; and a combined image generator configured to generate a combined image by combining the received images according to the detected screen modes of the respective terminals, wherein the communicator transmits the combined image to the respective terminals, and wherein the screen modes of the respective terminals comprise a horizontal screen mode and a vertical screen mode, wherein the combined image generator separately generates as many combined images as there are different aspect ratios among the images transmitted by the terminals, wherein the image analyzer detects, from the received images, aspect ratios of the respective terminals indicating a width-to-height ratio of the respective terminals in a reference orientation. - View Dependent Claims (21)
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22. A terminal used in a video call system, comprising:
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a capturing unit configured to capture a video call user; an orientation sensor configured to sense a state in which the terminal has been rotated with respect to a previously set reference orientation; an image rotator configured to rotate the image captured by the capturing unit according to the rotation state; and a video call unit configured to transmit the image captured by the capturing unit, aspect ratio information on the terminal which indicates a width-to-height ratio of the terminal in the reference orientation, and information on orientation sensed by the orientation sensor or the image rotated by the image rotator.
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Specification