International Business Machines Corporation

Yi Min Wang

Jian Wang

Qi Cheng Li

Zi Yu Zhu

Li Jun Mei

Guo Qiang Hu

Guoqiang Hu

Bo Yang

Hao Chen

Fan Jing Meng

Song Song

Fang Quan Xie

Dong Jun Lan

Bao Hua Cao

HuaFang Tan

Chen Hao

A method and system for generating a three-dimensional (3D) virtual scene are disclosed. The method includes: identifying a two-dimensional (2D) object in a 2D picture and the position of the 2D object in the 2D picture; obtaining the three-dimensional model of the 3D object corresponding to the 2D object; calculating the corresponding position of the 3D object corresponding to the 2D object in the horizontal plane of the 3D scene according to the position of the 2D object in the picture; and simulating the falling of the model of the 3D object onto the 3D scene from a predetermined height above the 3D scene, wherein the position of the landing point the model of the 3D object in the horizontal plane is the corresponding position of the 3D object in the horizontal plane of the 3D scene.

Generating three-dimensional virtual scene

Managing software performance debugging based on a distributed VM system is provided. In response to determining a debugging state of a software system running on a VM, a timing of a system clock of the VM is controlled. A data packet sent to the VM from another VM is intercepted, and an added system time and reference time that indicate when the packet was sent by the other VM is extracted from the packet. Based on the system and reference times, as well as a reference time of when the packet is intercepted, a timing at which the packet is expected to be received by the VM is calculated. The packet is forwarded to the VM as a function of a comparison of the timing at which the packet is expected to be received and a system time of the VM when the packet is intercepted.

Managing software performance tests based on a distributed virtual machine system

An auto focus device comprises a focus panel and a focus controller. The focus panel comprises liquid crystal between a first light-transmissive conductive film and a second light-transmissive conductive film, and the focus controller is configured to apply a voltage between the two light-transmissive conductive films at the position of at least one pixel, so that the liquid crystal at the position will have an expected focal length. An auto focus method comprises: acquiring information on eyesight status of a user; acquiring information on posture of the user; calculating expected focal length of the liquid crystal between the two light-transmissive conductive films at the position of at least one pixel according to the acquired user information; selecting a voltage to be applied between the two light-transmissive conductive films at the position according to the expected focal length; and applying the voltage between the two light-transmissive conductive films at the position.

Auto focus device and method for liquid crystal display

Disclosed are a method and apparatus for producing sounds in a virtual world, as well as a sound card. The method comprises the steps of determining a spring mass model of an object in the virtual world based on a 3D model of the object; analyzing force components produced on the 3D model by a collision in the virtual world; and generating sounds produced by the collision according to the spring mass model and the force components. By considering sound material of the object in the virtual world, the method, apparatus, and sound card may produce sounds in the virtual world more vividly and in real time.

Producing sounds in a virtual world and related sound card

A method and system for utilizing the biometric factors reflected in the typing as a kind of physiological password, to create a rhythmic password specific to the user, and to authenticate based on the rhythmic password. The method includes providing an original training text to a user, receiving an input training text provided by the user according to the original training text, extracting rhythmic characteristic values between adjacent text units of the input training text, and generating a rhythmic password of the user based on the extracted rhythmic characteristic values between adjacent text units. The invention utilizes the rhythm of a user inputting text can bring multiple advantages, including enhanced security of the password, and saving the user's cost of memorizing the password.

Creation of rhythmic password and authentication based on rhythmic password

Apparatus and method for the network transmission and displaying of the computer graphics. The method and apparatus for processing three-dimensional model data includes: obtaining the mesh data for an original mesh model; constructing a derivative mesh model from the vertex data for the original mesh model by using a pre-defined mesh model construction algorithm; comparing the mesh data for the original mesh model with the mesh data for the derivative mesh model to obtain the error data for the derivative mesh model; transmitting the vertex data related to the original mesh model; and transmitting the error data for the derivative mesh model.

Method and apparatus for processing three-dimensional model data

The present invention provides a method, apparatus, and non-transitory article of manufacture embodying computer readable instructions for scheduling discrete event simulation. One embodiment of the present invention is a method for scheduling discrete event simulation. The method includes: extracting two or more event types in the discrete event simulation in response to having loaded the discrete event simulation; constructing a correlation graph used for the discrete event simulation based on the two or more event types; and scheduling events that are classified into the two or more event types according to the correlation graph wherein each node in the correlation graph describes one of the two or more event types, and an edge in the correlation graph describes the creation or dependency relationship between the two or more event types. Other embodiments of the present invention provide an apparatus and computer program product for scheduling discrete event simulation.

Scheduling discrete event simulation

A clairvoyance method for 3D scene is disclosed, including the steps of acquiring parameters associated with a clairvoyance camera and parameters associated with a clairvoyance viewport; determining a 3D scene to be rendered according to the parameters associated with the clairvoyance camera; rendering the determined 3D scene to obtain a 2D image presented in the clairvoyance viewport; and composing the 2D image presented in the clairvoyance viewport and a 2D image presented in a general scene viewport. With the method of the present invention, the covered 3D scene can be made clairvoyant to be viewed in a user-controllable way, and further an object can be selected in the clairvoyant 3D scene for manipulation, without manipulating the covering object. Thus, one or more embodiments of the present invention have advantages of simple and easy operation and high efficiency.

Building controllable clairvoyance device in virtual world

A method and apparatus for evaluating attention degree in 3D virtual world are provided, the 3D virtual world comprising at least one virtual object and at least one avatar controlled by user, the at least one avatar having corresponding avatar view field. The method comprises: obtaining geometrical information about the avatar view field and geometrical information about the virtual object; determining the association between the avatar view field and the virtual object based on the geometrical information; evaluating attention degree of the virtual object based on the association; and providing evaluation result on attention degree of the virtual object. Corresponding apparatus is also provided. The above method and apparatus have provided attention degree related statistic collection and search feature for the virtual world.

Method and apparatus for search in virtual world

A method and systems for providing and processing images of a virtual world scene. The method includes: rendering the scene of the virtual world to generate a plurality of rendering results, generating at least one image stream based on at least part of the plurality of rendering results, and sending the at least one image stream to the client. The system for providing the images includes: rendering means to generate a plurality of rendering results; image stream generation means for generating at least one image stream; and sending means for sending said at least one image stream to a client. After providing the images, the images are processed by receiving means for receiving, at a client, two image streams and merging means for merging the two image streams into a single image stream for playing.

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Beijing, China

Yi Min Wang