Projection system and deformation correction method of projected image
A technology of video and projection, which is applied in the direction of using projection devices, image reproducers, instruments, projection devices, etc., can solve problems such as obstacles to the promotion of projection systems, and achieve the effect of low cost
Inactive Publication Date: 2020-04-24
BJ TEK CORP
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However, as long as the curvature of the imaging plane changes, the collocation of the optical elements will change, or the optical parameters of the optical elements will need to be recalculated and designed
This undoubtedly caused a lot of obstacles to the further promotion of the projection system.
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[0032] The present invention will be described in further detail below in conjunction with embodiment. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0033] Please refer to figure 1 , which is a circuit block diagram of a projection system according to an embodiment of the present invention. In this embodiment, the projection system 10 includes a projection correction device 100 and a normal projection device 150 . The projection calibration device 100 includes: a first image data source 102 , a first intermediate display device 104 , a first projection device 106 , an image capture device 108 and a processing device 110 . The normal projection device 150 includes: a second image data source 152 , a second intermediate display de...
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The present invention provides a projection system and a distortion correction method of projected images. The distortion correction method includes the following steps that: original image data are displayed as a first image that meets a first boundary feature; the first image is projected as a projected image; differences between the boundary shape of the projected image and an unadjusted firstboundary feature is analyzed; the first boundary feature is adjusted according to the differences between the boundary shape of the projected image and the unadjusted first boundary feature until theboundary shape of the projected image meets the unadjusted first boundary feature; and when the boundary shape of the projected image meets the unadjusted first boundary feature, the first boundary feature is recorded as a second boundary feature, wherein the first boundary feature is the shape of at least one peripheral display boundary of the first image. According to the projection system and the distortion correction method of the projected images provided by the invention, the shape of the image to be projected is adjusted, so that the shape of the projected image can be adjusted, and thedistortion of the projected image can be corrected.
Description
technical field [0001] The invention relates to the technical field of projection correction, in particular to a projection system and a deformation correction method of projected images. Background technique [0002] In existing life, projection imaging is already a very common means. However, in the technology of projection imaging, the projected image and the original image are often deformed in different degrees. Therefore, it is necessary for general projection equipment to provide appropriate image correction means, so as to provide some remedial measures according to the needs of the situation. For example, general projection equipment may provide keystone adjustment (keystone adjustment) technology. This kind of trapezoidal correction technology is to achieve the purpose of correcting the trapezoidal picture by adjusting the projection angle inside the machine. [0003] From the perspective of existing applications, the head-up display system, which is gradually b...
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IPC IPC(8): G03B21/14H04N9/31
Inventor 张修诚
Owner BJ TEK CORP