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199results about How to "Clear picture" patented technology

Gray scale image fitting enhancement method based on local histogram equalization

InactiveCN105654438ASuppresses "cold reflection" imagesEvenly distributedImage enhancementImage analysisImage contrastBlock effect
The invention provides a gray scale image fitting enhancement method based on local histogram equalization. The gray scale image fitting enhancement method has advantages of improving gray scale image contrast and detail information and eliminating block effect and over-enhancement. The gray scale image fitting enhancement method comprises the steps of performing segmental linear transformation on a gray scale image in an overwide dynamic range, obtaining the gray scale image in an appropriate dynamic range, dividing an image gray scale distribution interval to two segments to multiple segments, adjusting the gradient of a segmenting point and a transformation line of each image gray scale distribution interval, performing expansion or compression on a random gray scale interval; performing subblock part overlapping histogram equalization on a transformation result, obtaining the transformation function of the current subblock through performing weighted summation on a subblock transform function in the neighborhood, performing histogram equalization processing on the current subblock by means of the transformation function; and performing nonlinear fitting on the gray scale map after histogram equalization, and performing histogram distribution correction on the gray scale image after subblock part overlapping histogram equalization.
Owner:SOUTH WEST INST OF TECHN PHYSICS

Three-dimensional meridian and acupoint positioning method under 3D MAX (three-dimensional Studio Max) environment

The invention belongs to the application field of traditional Chinese medicine meridian doctrine and acupuncture and moxibustion medical skill, in particular to a three-dimensional meridian and acupoint positioning method under a 3D MAX (Three-dimensional Studio Max) environment, which comprises the following steps of: (1) generating a real three-dimensional image of a human body by adopting a virtual reality technology; (2) constructing 3D meridian and acupoint models on a computer by utilizing a 3D model of the human body; (3) carrying out image combination processing to the real three-dimensional image of the human body and the 3D model of the human body so as to enable the images to be overlapped; and (4) comparing and correcting the meridian and acupoint data of the 3D model of the human body, finally forming the real meridian and acupoint data of the human body, and storing the data into a preset database. According to the invention, on the computer, meridians and acupoints are shown on skeletons, muscle, vessels, nerves, lymph, visceral organs and other related positions of the model in the 3D form by a three-dimensional way, so that the error that human body epidermis needle-inserting points are used as meridians and acupoints by mistakes can be corrected, and the defects of the traditional two-dimensional drawing or three-dimensional reality model in expression of meridians and acupoints of the human body can be overcome.
Owner:韩红

Light source device, light source generation method and laser projection machine comprising light source device

The invention discloses a light source device, a light source generation method and a laser projection machine comprising the light source device. The light source device comprises light sources, wherein the light sources comprise a first light source, a second light source and a third light source with different wavelengths; the light source device further comprises a collimating part, a reflecting part, a converging and reflecting part and a converging part, wherein the collimating part is positioned at the ejection side of the first light source, the second light source and the third light source and is used for carrying out collimation processing on the received light sources; the reflecting part is used for reflecting the first light source and the second light source to the converging and reflecting part; the converging and reflecting part is used for carrying out reflection processing on the first light source and the second light source reflected by the reflecting part and carrying out convergence processing on the third light source after collimation processing; and the converging part is used for carrying out convergence processing on the first light source, the second light source and the third light source received so as to enable the first light source, the second light source and the third light source to enter to a light receiving part along the same direction. According to the invention, the quantity of parts in the light source device can be effectively reduced, the light path is simplified, the energy utilization ratio is increased, and the installation and the maintenance are simple.
Owner:HISENSE

Light source device, light source generation method and laser projector comprising light source device

The invention discloses a light source device, a light source generation method and a laser projector comprising the light source device. The light source device comprises light sources comprising a first light source, a second light source and a third light source which are provided with different main wavelengths; the light source device further comprises collimation part, a reflection part, a convergency and refection part, a convergency part and a dichroic part, wherein the collimation part is positioned on emergent sides of the first and the third light sources and is used for aligning the received light sources; the reflection part is used for reflecting the aligned first light source to the convergency and refection part; the convergency and refection part is used for reflecting the first light source reflected by the reflection part and converging the aligned third source; the convergency part is used for converging the first and the third light sources; and the dichroic part is used for leading the second light source plus the first and the third light source from the convergency part to be incident into a light receiving part in the same direction. By adopting the light source device, the number of parts in the light source device can be effectively reduced, a light path is simplified, the energy utilization rate is increased, and the mounting and the maintenance are simple.
Owner:HISENSE

Safe anti-theft door with intelligent lock

The invention relates to the technical field of anti-theft door equipment and discloses a safe anti-theft door with an intelligent lock. The safe anti-theft door comprises a door body. The outer surface of the door body is provided with the door lock. A door handle is arranged on the portion, above the door lock, of the door body. The door lock comprises a password input area and a fingerprint identification panel. A high-definition camera is arranged on the upper portion of the outer surface of the door body. A doorbell is mounted on the portion, below the high-definition camera, of the door body. The safe anti-theft door further comprises a power supply module, a control module, an image acquisition module, a password pairing module and a fingerprint acquiring and pairing module. The two sides of the fingerprint identification panel are provided with two blind holes. Rollers are separately inserted into the blind holes in a penetrating mode. The fingerprint identification panel is a lightproof panel. A cleaning brush is mounted on the portion, beside the fingerprint identification panel, of the surface of the door lock, and connected with a connecting rod structure in the door body. By adoption of the safe anti-theft door with the intelligent lock, fingerprints can be effectively prevented from being acquired, and the safety of the anti-theft door is greatly improved.
Owner:CHONGQING OFAN DOOR IND
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