34results about How to "Maintain sharpness" patented technology

In an image data processing apparatus having a HDD for storing image data, spatial filter processing, in which a dynamic range for output is set wider than a dynamic range for input, is applied to image data to be output to an external apparatus in a spatial filter processing unit, resolution conversion processing for converting a density into a high density is applied to the image data after the processing in a resolution conversion processing unit, gamma correction processing is applied to the image data after the processing in a gamma correction processing unit, and the image data after the processing is converted into a predetermined format in a processing unit for external output and is sent to an external apparatus from a network I/F.

A drill bit for use in association with a power or hand drill comprising a drill bit head and shaft. The drill bit head includes a drill bit cutting head and a guide point. The drill bit cutting head includes a first and a second cutting vane. Each cutting vane includes a first cutting edge which extends perpendicular to the axis of rotation and is provided for removing workpiece material, a second cutting edge which extends parallel to the axis of rotation and is provided for forming a substantially smooth workpiece bore, and a channel for facilitating the expulsion of removed workpiece material away from the first cutting surface as the drill bit passes through the workpiece.

An image data conversion method is provided. The method comprises the following steps of (a) receiving an original image data having three basic-color sub-pixel data and (b) calculating at least one color-enhancing sub-pixel data according to any two basic-color sub-pixel data so as to convert the original image data into an image data having at least three basic-color sub-pixel data and one color-enhancing sub-pixel data. The calculation of the color-enhancing sub-pixel data is represented as:

The invention discloses a rational interpolation scaling method based on the edge of a CT image, which comprises step 1, obtaining the boundary of a single pixel of the image through an edge detection algorithm; step 2, obtaining a fitting curve of the boundary pixels, and resampling to obtain a new enlarged boundary; Step 3, resampling non-boundary pixels according to different situations. The boundary curve and key pixels are obtained through the edge detection algorithm, the fitting curve of the boundary pixels is obtained when zooming in, and the new boundary is obtained by resampling to maintain the sharpness of the boundary visually; non-boundary pixels are divided into rational interpolation and ordinary according to different situations There are two types of bilinear interpolation. Due to the special processing of the image edge, the loss of edge information during the image scaling process is avoided, so that the details of the image can be better displayed, and the image information of the lesion can be displayed better. The magnified CT image can clearly show the relationship between the lesion and the surrounding normal tissues and organs, so that some lesions that are not easy to be found can be detected early.

In order to provide a transmission type screen capable of maintain sharpness of image without impairing uniformity of emergent light to be emitted therefrom, a transmission type screen 40 of the present invention includes a microlens array substrate 50 having a first surface 51 equipped with a microlens array 54 including a plurality of microlenses; and a light diffusion substrate 60 having a second surface 61 equipped with a light diffusion surface; wherein the first surface 51 of the microlens array substrate 50, which is equipped with the microlens array, and the second surface 61 of the light diffusion substrate 60, which is equipped with the light diffusion surface, are opposedly arranged.

The invention relates to a radial planet diamond grinder, especially providing a diamond grinding wheel work-piece, with wider grinding width, high efficiency, lower cost and continuous operation. Said planet device comprises a bearing, a sun wheel, planet wheels, taper gear wheel, grinding main axle, nut, and a pressure refrigerating liquid inlet tube. The end of rotational frame is integrated with the inlet of driving axle; the inlet of driving axle is connected to the rotational axle of machine tool; a bearing is arranged between the driving axle and the fixed connecting frame; the top of fixed connecting frame is connected to the machine tool; the driving axle is mounted with sun wheel; the planet gear wheel is connected to the sun wheel; the planet axle drives the taper gear wheel to drive the grinding main axle; the grinding head spring is clamped on the output end of grinding main axle; the refrigerating liquid inlet tube is at the axes of driving axle and connected to the internal refrigerating tube of rotational frame; the refrigerating liquid flows to the clamp end of grinding spring that connecting to the grinding main axle, to enter into the middle hole of grinding head.

Color processing is performed for each image data, so as to switch generating methods for black data to perform appropriate sharpness processing regarding image data wherein sharpness of printing results is important and image data wherein gradation of the image is important. A recording device is provided, wherein by performing such processing, black images such as characters or lines maintain sharpness or clarity, and picture images can be formed as high quality images.

The invention provides an image processing device and an image data interpolating method. The image processing device comprises a receiving module, an edge pixel point judging module, an interpolation point position generating module, an edge judging module, a position judging module and an interpolation point pixel value generating module. The receiving module is used for receiving the image data including a plurality of pixel points; the edge pixel point judging module is used for judging whether the pixel value of each pixel point belongs to an edge pixel point; the interpolation point position generating module is used for generating a plurality of interpolation point positions so as to produce position relation data between each interpolation point position and four neighboring pixel points; the edge judging module is used for judging whether each interpolation point and the four neighboring pixel points have edges so as to generate edge relation data; the position judging module is used for judging whether each interpolation point is positioned in a central area according to the position relation data; the interpolation point pixel value generating module is used for generating a pixel value for each interpolation point according to the position relation data and the edge relation data so as to finish generating each interpolation point. The method of the invention takes advantages of the edge relation data and the position relation data, considers the happening status of an extremum point and chooses different algorithms according to the position to adjust the pixel value of the interpolation point, thereby maintaining the image sharpness after interpolation.

A digital image processing device and processing method thereof are provided. The device includes a digital image capturing module, an image enlarging module, an image correcting module, and an image blending module. The digital image capturing module captures a plurality of first resolution images. The image enlarging module enlarges the first resolution images and produces a plurality of second resolution images. The image correcting module selects a target image and produces a plurality of corrected images. The image blending module performs direction gradient operation on each of the pixels of the target and corrected images and produces a plurality of gradient differential values. The image blending module performs a weighting sum operation on each of the pixels of the target and corrected images and produces a third resolution images.

The invention relates to an ultrafine diamond grinding wheel and a preparation method thereof. The preparation method comprises the following steps: (1) dissolving acrylamide and N,N'-methylenebisacrylamide into water to obtain a premixed liquid; (2) mixing a dispersing agent, a plasticizer, a modifier, a defoaming agent and the premixed liquid to obtain a basic mixed liquid; (3) mixing an abrasive material and a glass binder to obtain powder; (4) mixing the powder and the basic mixed liquid, performing grinding, and performing degassing to obtain an abrasive material slurry; (5) adding a curing agent solution into the abrasive material slurry, performing uniform stirring, injecting the stirred material into a mold for curing, performing demoulding, and performing drying to obtain a greenbody of the grinding wheel; and (6) roasting the green body of the grinding wheel to obtain the ultrafine diamond grinding wheel. The ultrafine diamond grinding wheel provided by the invention can realize high-efficiency, ultra-smoothness, low-damage grinding and polishing processing of zirconium oxide core-insertion products, and has a uniform structure, high processing efficiency, and low abrasion consumption.

A cladded knife guard is provided. In one aspect, the invention provides for a knife guard that comprises a guard body that further comprises a base material. The base material includes a mounting bar that defines at least one bolt hole and at least one tine projecting forward from the mounting bar. The base material has a first hardness. A cladded material is formed on the base material. The clad material comprises a second hardness greater than the first hardness.

A light shielding structure is provided for an electronic device and includes a display device mounted to the electronic device, an outer casing arranged at one side of the display device, a light transmitting portion mounted on the outer casing, an adjustable light-shielding plate arranged between the display device and the light transmitting portion, and an adjusting device set on one side of the adjustable light-shielding plate and operatively coupled thereto. When the display device is activated, light transmits toward the adjustable light-shielding plate. When the adjustable light-shielding plate is in an idle and not operating condition, the light is allowed to transmit through the adjustable light-shielding plate and the light transmitting portion to make light projecting out from the outer casing. Oppositely, the adjusting device may be operated to cause the adjustable light-shielding plate to change color for shielding the light.

The invention discloses a diamond wire saw based on a nickel alloy core wire. The diamond wire saw is characterized in that the diamond wire saw comprises a metal core wire inner core, a diamond abrasive particle middle layer and a coverage film outer layer. The diamond abrasive particle middle layer is uniform in thickness, and the thickness of the diamond abrasive particle middle layer is less than or equal to 70 microns and greater than 30 microns. The inner core is the nickel alloy core wire and comprises, by mass percentage, 30% of tungsten. The coverage film outer layer is a metal coverage film. The metal coverage film comprises Ti and Al. The coverage rate, on the metal core wire inner core, of the diamond abrasive particle middle layer is 28-40%. The metal coverage film is added, the alloy matching rate is adjusted, so that the sharpness of the wire saw is fully maintained, and the wire saw is not likely to be damaged; and by means of the nickel alloy core wire, the whole wiresaw can achieve the full hardness.