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79 results about "Goal selection" patented technology

Method, device and system for performing target selection in virtual reality space

The invention discloses a method for performing target selection in a virtual reality space, which can flexibly and efficiently perform target selection in the virtual reality space. The method includes; receiving spatial position information and rotary posture information of a gesture input device, and mapping the gesture input device to an established three-dimensional virtual space according to the spatial position information and the rotary posture information of the gesture input device; acquiring a position coordinate origin in the three-dimensional virtual space of a virtual object of the gesture input device and a direction vector pointing to the right ahead of the virtual object; drawing a ray with the position coordinate origin as a starting point in the direction of the direction vector in the three-dimensional virtual space, wherein the ray serves as a prompt identification for target selection in the three-dimensional virtual space; and determining a three-dimensional virtual space image of a user view direction, and sending the three-dimensional virtual space image to a head-mounted display to be displayed. The invention also discloses a device and system for performing target selection in the virtual reality space.
Owner:SMARTISAN DIGITAL

Road conditions video camera marking method under traffic monitoring surroundings

InactiveCN101118648AImprove robustnessMeet the requirements of high-precision camera calibrationTelevision system detailsImage analysisMonitoring systemModel parameters
A road condition video camera demarcating method under the traffic monitoring condition includes the following demarcating steps: (1) visual model describing and relevant coordinate system creating: according to the requirement of the monitoring system performance, a classical Tsai transmission projection model is used for reference, and according to the feature of the road condition imaging, a new visual model is presented after conducting corresponding amendment on the classical Tsai transmission projection model, and three kinds of coordinates are established. (2) demarcating the main point of a video camera and the extension factor: the image monitoring light stream is used as the demarcating basic element; by the extension movement of the video camera, a reference frame forecast image and the difference value of the light stream field in a real time frame sampling image are used as the restriction, a constraint equation is established by adopting the least square method, the main point coordinate of the video camera and the actual magnification coefficient of the video camera can be distinguished by the powell direction family method. (3) Demarcated object selecting and parameter linearity evaluating. (4) Accuracy making on the internal and external parameters of the video camera: according to all the angle points of the monitored image and the corresponding world coordinate point, the Levenberg-Marguardt optimization algorithm is adopted to make accuracy on the video camera model parameter, and then the video camera demarcating is finished.
Owner:NANJING UNIV

Method for batch uninstalling programs of mobile terminal equipment

The invention discloses a method for batch uninstalling programs of mobile terminal equipment. The method comprises the following steps of: when an action pattern of 'two fingers outwards sliding' on the desk is monitored, reading that an operator intends to batch uninstalling, and the desk entering into a batch uninstalling mode; then, when an action pattern of 'the fingers release after sliding on the desk for a certain distance' on the desk is monitored, selecting the uninstalling targets by the following means: drawing a rectangle by taking straight lines formed by starting points and ending points as diagonal lines, wherein application icons in the rectangle frame are the targets to be uninstalled; and filtering the programs which are unnecessary to uninstall or unallowed to be uninstalled, and canceling the targets which are canceled to check by users from the uninstalling targets, and then uninstalling. The method has the advantages that by the method, the function of batch uninstalling the application programs can be conveniently carried out on the desk; the operation is concise and clear; error operation can be avoided; and by means of locally selecting all, then canceling checking, the checking operation times can be effectively reduced.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Network transaction platform and realizing method thereof

The invention discloses a network transaction platform and a realizing method thereof. The network transaction platform comprises the components of a purchasing requirement receiving unit which receives a purchasing demand of a buyer; a quoted price receiving unit which receives quoted price information that is transmitted from each seller; a target selecting unit which receives target selection of the buyer to quoted price information of each seller; an ordering request receiving unit which receives an ordering request that is generated by the buyer according to the target selection; a pre-payment requesting unit which transmits pre-payment request information to a payment interface when the ordering request of the buyer is received, thereby guiding the buyer enter the payment platform; apayment settlement unit which processes the pre-payment request information of the buyer, freezes the pre-payment sum in a buyer account, and transmits paid transaction information to the seller after successful payment; and a transaction confirming unit which performs payment of the pre-payment sum which is frozen in the buyer account to a seller account when transaction confirming information of the buyer is received. The network transaction platform and the realizing method thereof have advantages of realizing a purchasing transaction according to the customer requirement, reducing man communication cost and reducing purchasing time cost.
Owner:深圳市猎芯科技有限公司
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