42 results about "Projective method" patented technology

The invention provides a projector and a method for projecting an image by using the projector. In the projector, if an image signal other than the currently selected image signal is input, the image signal is switched to the other image signal according to the position of a shutter.

The invention relates to a projector, a projector system and an image projection method with which miniaturization and low cost can be realized when correcting the shape of images. A projector used with an external device having a tilt detection function and configured so that the external device can be connected to a projector main body at a predetermined installation angle projects an image on which a correction has been performed using a first tilt angle of the external device detected by the external device and the installation angle.

A projection system and a projection method are disclosed. The projection system includes: a position detecting section that detects the position of a target object located in front of a host vehicle; and a control section which, on the basis of the position of the target object detected by the position detecting section, controls a headlamp so as to project a projection pattern onto the position of the target object. The projection pattern moves in a direction corresponding to the direction of motion of a background at the position of the target object or a direction corresponding to the opposite direction of the direction of motion of the background.

The invention relates to a parallelization ray casting method, system and apparatus. The method includes the following steps that: volume data are acquired, and data classification is performed on the volume data, so that classification results can be obtained; resampling is performed on the classification results in a parallel manner, so that a resampling result can be obtained; block processing is performed on the resampling result, so that a plurality of sub data blocks can be obtained; image fusion is performed on the sub data blocks in a parallel manner, so that a plurality of sub image data corresponding to the sub data blocks can be obtained; and image fusion calculation is performed on the sub image data, so that a visual image of the volume data can be obtained. According to the parallelization ray casting method, system and apparatus provided by the above embodiments of the invention, parallel processing of the volume data is realized, so that the speed of visual imaging can be greatly improved.

The invention provides an image processing method and device, an image projecting method and device, and an imaging system, and relates to an imaging solution, which is greater than the human eye vision. The image processing method provided by the invention comprises the following steps of: firstly, constructing an envelope cube taking an appointed observation point as the centre in a virtual scene; then, obtaining perspective picture screenshots that the observation point faces to various surfaces of the envelope cube; and finally, combining the perspective picture screenshots that the observation point faces to various surfaces of the envelope cube to form a shape matched with the shape of a pre-set imaging medium and a vision angle, so that a source image is obtained, wherein the shape of the imaging medium comprises a sphere or a part of the sphere, an oval or a part of the oval and a ring or a part of the ring. By means of the method, a non-planar source image matched with the imaging medium can be generated; and thus, the problem that the virtual reality realistic sense and immersion sense are poor due to the fact that the planar image is used as the source image currently can be solved.