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562results about How to "Pixel height" patented technology

High-quality imaging double camera shooting and imaging device and method thereof

The invention provides a high-quality imaging double camera shooting and imaging device and method thereof. In a camera shooting process, high-quality images are obtained through matching of double cameras. The double cameras arranged on a portable device comprise a main camera and an auxiliary camera, the parameters of the double cameras are initialized first, when shooting is carried out, focusing and photometry are carried out on the main camera, photometry data are sent to a background control module, the background control module adjusts shooting parameters of the main shooting camera and the auxiliary shooting camera according to different image imaging requirements, the shooting parameters comprise sensitometry and shutter time, after the parameters are set, shutters are opened at the same time to shoot, the background control module obtains a main image from the main camera and obtain s an auxiliary image from the auxiliary camera, image synthesis and superposition processing are carried out according to the image imaging requirements aiming at the main image and the auxiliary image with different technical details, and a high-precision imaging effect with high anti-shake performance and a high tolerance level is achieved.
Owner:SHANGHAI GUOKE ELECTRONICS

Handheld laser three-dimension scanning method and handheld laser three-dimension scanning equipment based on mark point trajectory tracking

The invention relates to a handheld laser three-dimension scanning method based on single-camera mark point trajectory tracking. The handheld laser three-dimension scanning method comprises the following steps: (1) identifying and extracting the two-dimension position information of mark points in an image shot by a single camera, pre-judging according to the motion trajectories of the mark points in frames with a preset amount to obtain target positions in a current frame, then searching around the target positions to obtain mark points corresponding to the target positions, and establishing an initial matching relationship between the mark points in the current frame and an original mark point library; (2) utilizing the initial matching relationship to calculate the RT transfer matrix of an instrument from a current relative coordinate system Oc to a world coordinate system Ow, and utilizing a reprojection method for checking the previous initial matching relationship; (3) extracting a laser projection contour in a current frame image, and converting to three-dimensional coordinates under the world coordinate system Ow through the RT transfer matrix. The invention also discloses handheld laser three-dimension scanning equipment. According to the method and the equipment, the requirement for system hardware configuration is reduced, the smoothness during moving and splicing is good, the precision is relatively high, and the cost is relatively low.
Owner:杭州思锐迪科技有限公司

Optical lens

ActiveCN104407431ASmall distortionHigh light performanceOptical elementsCamera lensPhysics
The invention relates to an optimal lens. The optical lens sequentially comprises a front lens group, a diaphragm element and a rear lens group from an object space to an image space, wherein the front lens group has positive focal power; the rear lens group has positive focal power; the front lens group sequentially comprises a crescent first lens and a double-convex second lens from the object space to the image space; the crescent first lens has negative focal power; a concave surface of the crescent first lens faces the image space; the double-convex second lens has positive focal power; the rear lens group sequentially comprises a double-concave third lens, a crescent fourth lens and a balsaming lens; the double-concave third lens has negative focal power; the crescent fourth lens has positive focal power; a concave surface of the crescent fourth lens faces the object space; the balsaming lens consists of a fifth lens and the sixth lens. The requirements of high pixel, small distortion, large aperture, high light transmitting performance and accordance with high definition are met under the conditions of low cost and small miniaturization are realized; various aberrations of an optical system are effectively corrected; meanwhile, perfect imaging definition can be kept in the temperature of -40DEGC to 85DEG C; the optical lens is specially suitable for monitoring or vehicle-mounted camera systems considering daytime and nighttime or poor illuminating conditions.
Owner:NINGBO SUNNY AUTOMOTIVE OPTECH

Optical lens system

ActiveCN108919459AStrong light transmission abilityAdapt to light and dark changesOptical elementsCamera lensAspheric lens
The invention provides an optical lens system, the optical lens system sequentially comprises, from the object side to an imaging surface, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, wherein the first lens is provided with negative focal power, and the concave surface of the first lens faces the object side; the second lens is provided with positive focal power, and both sides of the second lens are of convex surfaces; the third lens is provided with positive focal power, and the convex surface of the third lens faces the object side; the fourth lens is provided with positive focal power, and both sides of the fourth lens are of convex surfaces; the fifth lens provided with negative focal power, the both sides of the fifth lens are of concave surfaces, and the fourth lens and the fifth lens constitute a agglutinate ophthalmic lens; the sixth lens is provided with positive focal power, the concave surface of the sixth lens faces the object side, and the concave surface of the sixth lens faces the image side; and the seventh lens is provided with negative focal power, and the concave surface of the seventh lens faces the imaging surface. Diaphragm is arranged between the first lens and the third lens, the first lens, a fourth lens and the fifth lens are of glass spherical lenses, and the seventh lens is of a glass aspheric lens. A camera lens of the optical lens system has heat stability, has sky-high resolving power to objects transmitting or reflecting monochromatic light with different wave lengths, and can meetthe unmanned camera lens requirements.
Owner:JIANGXI LIANCHUANG ELECTRONICS CO LTD
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