33results about How to "Fix Image Distortion" patented technology

The invention discloses an ink-jet printing device used for continuously printing media. The ink-jet printing device used for the continuously printing media comprises a framework, an ink-jet unit with a printing head, a paper-moving channel and a paper-moving mechanism, wherein the ink-jet unit comprises an ink box accommodated with quick-drying ink to ensure that the quick-drying ink which is jetted by the printing head and attached to the continuously printing media is solidified and dried up before arriving at the paper-moving mechanism, and therefore the problem that a friction wheel scratches ink marks which are not dried and accordingly images are distorted is solved. Further more, a horizontal paper-moving channel for ensuring that the continuously printing media horizontally move is adopted by the device, wherein the horizontal paper-moving channel is a straight-line-shaped paper-moving channel and discards an L-shaped or a C-shaped paper-moving channel mode on a traditional ink-jet printer, reduces requirements for softness of the printing media to the maximum degree, and is applicable to more widely and continuously printing media such as hard card paper, certificates, plastic paper and cemarics.

The invention relates to an improved high-dimension space adaptive sampling method used for space reconstruction of an image. The method includes following steps: performing random sparse sampling in a high-dimension space; performing selective encryption sampling on sampling points for random sparse sampling by employing an adaptive scale estimation method; eliminating distortion caused by selective encryption sampling; reconstructing a brightness function of the high-dimension space according to brightness values of the sampling points for encryption sampling; performing integral reconstruction on a non-image space dimension in the reconstructed brightness function, and obtaining a brightness function in the final image dimension; and processing the brightness function in the final image dimension, and performing space reconstruction on the image. Compared with the prior art, the method is advantaged by good reconstruction effect, high adaptability, wide application range, and avoidance of distortion etc.

The invention discloses front-in front-out ink-jet printing equipment which comprises a framework, an ink jetting unit provided with a printing head, a paper feeding channel and a paper feeding mechanism, wherein the ink jetting unit comprises an ink box containing rapidly-dried ink; the paper feeding channel is a horizontal channel capable of enabling a printing medium to move horizontally; and a paper inlet and a paper outlet of the paper feeding channel are the same opening at the front side of the paper feeding channel. According to the ink-jet printing equipment disclosed by the invention, the adopted paper feeding channel is horizontally linear, the printing medium is fed in and discharged out from the front, the operation is humanized, and the requirement on the softness of the printing medium is reduced; and the rapidly-dried ink is adopted for printing, so that the rapidly-dried ink, which is jetted out by the printing head and attached to the printing medium, is solidified and dried before arriving at a friction wheel of the paper feeding mechanism, and the problem that image distortion is caused due to the condition that the friction wheel scrapes ink marks which are not dried is solved. The equipment structure is simplified; and the front-in front-out ink-jet printing equipment is convenient to install, simple in operation, low in cost, long in service life and especially suitable for front-in front-out printing media such as invoices.