# US 10,870,053 B2 · Perspective mode switching method and terminal

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- Number: US 10,870,053 B2
- Document ID: US10870053B2
- Status: Granted
- Kind: B2
- Application number: 16/293,373
- Filed: 2019-03-05
- Published: 2019-06-27
- Granted: 2020-12-22
- Earliest claimed: 2016-10-26
- Assignees: Tencent Technology (Shenzhen) Company Limited
- Applicants: Tencent Technology (Shenzhen) Company Limited
- Inventors: Ning He; Xinlong Huang; Mo Zhang
- Web page: https://patentgrep.com/patent/US10870053B2

## CPC

- A63F 13/5258: by dynamically adapting the position of the virtual camera to keep a game object or game character in its viewing frustum, e.g. for tracking a character or a ball
- A63F 13/426: involving on-screen location information, e.g. screen coordinates of an area at which the player is aiming with a light gun
- G06F 3/14: Digital output to display device {; Cooperation and interconnection of the display device with other functional units}
- A63F 2300/65: for computing the condition of a game character
- A63F 2300/6684: by dynamically adapting its position to keep a game object in its viewing frustrum, e.g. for tracking a character or a ball
- G09G 2320/062: Adjustment of illumination source parameters
- G09G 2354/00: Aspects of interface with display user
- G09G 2370/02: Networking aspects
- A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A method and a terminal device for switching perspective are provided. The terminal device receives a perspective switching instruction when the terminal device is in a first perspective mode in which the terminal device displays a scenario from a first perspective. The terminal device determines a second perspective mode to display the scenario from a second perspective. Next, the terminal devices adjusts a first display parameter of a first model of the scenario from the first perspective and a second display parameter of a second model of the scenario from the second perspective according to a preset rule for a transition from the first perspective mode to the second perspective mode. Further, the terminal device displays the first model according to the first display parameter and the second model according to the second display parameter during the transition from the first perspective mode to the second perspective mode.

## Claims

### Claim 1

A method for switching perspective, comprising:
receiving, via interface circuitry of a terminal device, a perspective switching instruction when the terminal device is in a first perspective mode in which the terminal device displays a scenario from a first perspective;
determining, by processing circuitry of the terminal device, a second perspective mode in which the terminal device displays the scenario from a second perspective in response to the perspective switching instruction;
adjusting, by the processing circuitry, a first display parameter of a first model of the scenario from the first perspective and a second display parameter of a second model of the scenario from the second perspective according to a preset rule for a transition from the first perspective mode to the second perspective mode; and
displaying, on a screen of the terminal device, the first model according to the first display parameter and the second model according to the second display parameter during the transition from the first perspective mode to the second perspective mode,
wherein during the transition from the first perspective mode to the second perspective mode, the method further includes:
adjusting a first transparency of the first model of the scenario from the first perspective and a second transparency of the second model of the scenario from the second perspective according to the preset rule, and
adjusting a position of a virtual lens according to a preset lens moving rule.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
during the transition from the first perspective mode to the second perspective mode,
adjusting the first transparency to linearly change with time; and
adjusting the second transparency to be inversely correlated with the first transparency.

### Claim 3 (depends on 2)

The method according to claim 2, further comprising:
during the transition from the first perspective mode to the second perspective mode,
increasing the first transparency to a target level before reducing the second transparency;
when the first transparency is increased to the target level, simultaneously increasing the first transparency and reducing the second transparency.

### Claim 4 (depends on 1)

The method according to claim 1, further comprising:
stopping the position adjustment of the virtual lens when a collision of the virtual lens to an object in the scenario is detected.

### Claim 5 (depends on 4)

The method according to claim 4, further comprising:
adjusting the position of the virtual lens from a first position corresponding to the first model of the scenario from the first perspective to a second position corresponding to the second model of the scenario from the second perspective.

### Claim 6 (depends on 1)

The method according to claim 1, further comprising:
generating a plurality of pictures corresponding to a motion from the first perspective to the second perspective; and
displaying the plurality of pictures during the transition from the first perspective mode to the second perspective mode.

### Claim 7

A terminal device, comprising:
interface circuitry configured to receive a perspective switching instruction when the terminal device is in a first perspective mode in which the terminal device displays a scenario from a first perspective; and
processing circuitry configured to:
determine a second perspective mode in which the terminal device displays the scenario from a second perspective in response to the perspective switching instruction;
adjust a first display parameter of a first model of the scenario from the first perspective and a second display parameter of a second model of the scenario from the second perspective according to a preset rule for a transition from the first perspective mode to the second perspective mode; and
display the first model according to the first display parameter and the second model according to the second display parameter during the transition from the first perspective mode to the second perspective mode,
wherein during the transition from the first perspective mode to the second perspective mode, the processing circuitry is further configured to:
adjust a first transparency of the first model of the scenario from the first perspective and a second transparency of the second model of the scenario from the second perspective according to the preset rule, and
adjust a position of a virtual lens according to a preset lens moving rule.

### Claim 8 (depends on 7)

The terminal device according to claim 7, wherein the processing circuitry is further configured to:
during the transition from the first perspective mode to the second perspective mode,
adjust the first transparency to linearly change with time; and
adjust the second transparency to be inversely correlated with the first transparency.

### Claim 9 (depends on 8)

The terminal device according to claim 8, wherein the processing circuitry is further configured to:
during the transition from the first perspective mode to the second perspective mode,
increase the first transparency to a target level before reducing the second transparency; and
when the first transparency is increased to the target level, simultaneously increase the first transparency and reducing the second transparency.

### Claim 10 (depends on 7)

The terminal device according to claim 7, wherein the processing circuitry is further configured to:
during the transition from the first perspective mode to the second perspective mode,
adjust a first brightness of the first model of the scenario from the first perspective and a second brightness of the second model of the scenario from the second perspective according to another preset rule.

### Claim 11 (depends on 10)

The terminal device according to claim 10, wherein the processing circuitry is further configured to:
during the transition from the first perspective mode to the second perspective mode,
adjust the first brightness to linearly change with time; and
adjust the second brightness to be inversely correlated with the first brightness.

### Claim 12 (depends on 11)

The terminal device according to claim 11, wherein the processing circuitry is further configured to:
during the transition from the first perspective mode to the second perspective mode,
reduce the first brightness to a target level before increasing the second brightness; and
when the first brightness is reduced to a target value, simultaneously reduce the first brightness and increasing the second brightness.

### Claim 13 (depends on 7)

The terminal device according to claim 7, wherein the processing circuitry is further configured to:
stop the position adjustment of the virtual lens when a collision of the virtual lens to an object in the scenario is detected.

### Claim 14 (depends on 13)

The terminal device according to claim 13, wherein the processing circuitry is further configured to:
adjust the position of the virtual lens from a first position corresponding to the first model of the scenario from the first perspective to a second position corresponding to the second model of the scenario from the second perspective.

### Claim 15

A non-transitory computer readable storage medium storing instructions which when executed by at least one processor in a terminal device cause the terminal device to perform:
receiving a perspective switching instruction when the terminal device is in a first perspective mode in which the terminal device displays a scenario from a first perspective;
determining a second perspective mode in which the terminal device displays the scenario from a second perspective in response to the perspective switching instruction;
adjusting a first display parameter of a first model of the scenario from the first perspective and a second display parameter of a second model of the scenario from the second perspective according to a preset rule for a transition from the first perspective mode to the second perspective mode; and
displaying, on a screen of the terminal device, the first model according to the first display parameter and the second model according to the second display parameter during the transition from the first perspective mode to the second perspective mode,
wherein during the transition from the first perspective mode to the second perspective mode, the instructions further cause the terminal device to perform:
adjusting a first transparency of the first model of the scenario from the first perspective and a second transparency of the second model of the scenario from the second perspective according to the preset rule, and
adjusting a position of a virtual lens according to a preset lens moving rule.

### Claim 16

A method for switching perspective, comprising:
receiving, via interface circuitry of a terminal device, a perspective switching instruction when the terminal device is in a first perspective mode in which the terminal device displays a scenario from a first perspective;
determining, by processing circuitry of the terminal device, a second perspective mode in which the terminal device displays the scenario from a second perspective in response to the perspective switching instruction;
adjusting, by the processing circuitry, a first display parameter of a first model of the scenario from the first perspective and a second display parameter of a second model of the scenario from the second perspective according to a preset rule for a transition from the first perspective mode to the second perspective mode; and
displaying, on a screen of the terminal device, the first model according to the first display parameter and the second model according to the second display parameter during the transition from the first perspective mode to the second perspective mode,
wherein during the transition from the first perspective mode to the second perspective mode, the method further includes:
(i) adjusting a first transparency of the first model of the scenario from the first perspective and a second transparency of the second model of the scenario from the second perspective according to the preset rule, or
(ii) adjusting a first brightness of the first model of the scenario from the first perspective and a second brightness of the second model of the scenario from the second perspective according to the preset rule, and
adjusting a position of a virtual lens according to a preset lens moving rule.