102results about How to "Large image size" patented technology

A dioptric projection optical system for imaging a reduced image of a pattern on a first surface onto a second surface using radiation-transmitting refractors. The projection optical system has a front lens unit of a positive refracting power and a rear lens unit of a positive refracting power. An aperture stop is located in the vicinity of a rear focal point of the front lens unit.

The invention uses optics and precision mechanisms to quantitatively assess the performance of medical endoscopes. By viewing standardized optical targets under well-controlled conditions, the optical quality of endoscopes can be easily determined in much the same fashion as getting one's eyes tested at the optometrist. The actual design, however, is much more complicated than your optometrist's eye chart and different-types of endoscopes from different manufacturers require customization of the target geometry, the viewing distance, and the viewing angle. Also, there are several optical characteristics beyond image sharpness that need to be assessed, requiring other unique test geometries, including contrast, distortion, and vignetting. Clinically significant measurements are performed with simplicity and cost-effectiveness through the use of relatively inexpensive optical components and an embedded processor and graphical display system.

A novel image processing system includes a pixel position indicator and a pixel inserting unit. The pixel position indicator is configured to indicate insertion positions in the image data. The pixel inserting unit is configured to enlarge a size of the image data by inserting an additional pixel at each of the insertion positions and accordingly shifting the original pixels in a given direction. The additional pixel has a value lower than a given threshold. Each insertion position is at an approximate center of an area formed of pixels having values higher than the given threshold. A novel image forming apparatus incorporates such an image processing system and an electrophotographic system. The electrophotographic system is configured to form an image by irradiating a photoconductive surface with a laser beam according to the processed image data.

A system for and a method of controlling a spatial distribution of radiation intensity in a beam of radiation is provided. The system includes a control device located to receive the initial beam of radiation from the radiation source. The control device includes a first radiation absorbing structure located at a position in generally superposing alignment relative a position of a second radiation absorbing structure. Each first and second radiation absorbing structure is operable to independently articulate. The modulator configuration signal is operable to cause adjustment of the position of at least one of the first and second radiation absorbing structures relative to the other so as to selectively adjust a spatial distribution of radiation intensity of a modulated beam.

A system for real-time visualization of subdermal structures of a mammal, using near-infrared (nIR) illumination source, a support structure with independently articulating arms for attaching a camera and a visual display screen, a controller for the camera and nIR illumination source. The camera includes a zoom lens that provides a detection field of view at a long working distance to avoid the camera obstructing the view of the medical personnel when performing a medical procedure on the mammalian body part. A targeting system indicates a focus location of the zoom lens and a center of detection field of view. An nIR bandpass filter and image processor convert the captured and filtered trans-illuminating nIR light to an image signal. An interfaced computer can operate on a commercial or proprietary operating systems and operates image enhancement software and image archival, distribution and display.

In an image forming apparatus, exhaust fans of a ventilation device and an intake port of an air purifier are provided on side wall portions respectively that are opposite each other in a main casing of the image forming apparatus, and the exhaust fans of the ventilation device are provided in a location higher than the intake port of the air purifier. With this configuration, silicone that is discharged from the exhaust fans of the ventilation device is almost never suctioned into the intake port of the air purifier, such that almost none of this silicone adheres to a discharging electrode of the ion generator, and an ion generating efficiency of the ion generator can be maintained over a long period without dropping.

An imaging lens is substantially constituted by five lenses, including: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power and an inflection point on the surface thereof toward the image side. All of the first lens through the fifth lens are single lenses, and the imaging lens satisfies predetermined conditional formulae.

A control method is applied to a touch display system. The touch display system includes a display module, a touch module, and a programmable circuit. The programmable circuit is electrically connected between the touch module and the display module for executing the control method. The method includes: the touch module providing a first sense area; detecting whether the first sense area being touched or not; the display module displaying an boot image when the first sense area being touched; providing a second sense area after the boot image being displayed; detecting whether the second sense area being touched or not; and the display module displaying an on-screen display menu when the second sense area being touched, wherein the on-screen display menu includes a power item and a plurality of function items.

A zoom lens consists essentially of, in order from the object side: a positive first lens group that is fixed during magnification change; a moving lens group consisting of at least two lens groups that are moved along the optical axis direction to change an air space therebetween during magnification change; a stop; and a positive end lens group that is fixed during magnification change. The first lens group consists of, in order from the object side, a negative first lens-group front group, a positive first lens-group middle group, and a positive first lens-group rear group. During focusing, only the first lens-group middle group is moved along the optical axis direction. The first lens-group middle group includes at least one aspheric lens that satisfies predetermined condition expressions.

A polarizing prism is shaped in the form of a hexahedron. A polarizing beam splitter film (PBS film) is arranged approximately in a diagonal direction of the hexahedron. The polarizing prism holds a relationship of A<B when the dimension thereof in an outgoing direction (Y direction) of a light beam to a screen is A and the dimension thereof in an incident direction (X direction) of a light beam from a light source is B. For example, the polarizing prism is shaped in the form of a rectangular parallelepiped. At a plane on which the light beam is launched from a scanning mirror, one end of the PBS film is placed so as to intersect with the incident plane at an angle of approximately 45° at a position deviated inside by a difference between the dimensions A and B from the end of the incident plane.

The invention discloses a back off-axis alignment system based on an array photoelectric sensor, which is used for determining the relative positional relation between a base and a workpiece table, wherein the workpiece table is provided with a first surface and a second surface opposite to the first surface and is used for supporting the base and enabling the base to move; the back of the base is in contact with the first surface of the workpiece table. The alignment system comprises an imaging optical system, an array photoelectric sensor and a control module, wherein the imaging optical system is used for imaging at least one alignment marker on the back of the base above the first surface of the workpiece table; the array photoelectric sensor is used for detecting an image of the alignment marker; the array sensor comprises a plurality of separated photoelectric sensors; the size of a photosensitive surface of each photoelectric sensor is greater than the minimum size of the alignment marker, and the space between the photosensitive surfaces of any two photoelectric sensors is less than the minimum size of the image of the alignment marker; the control module is used for acquiring and processing image information of the alignment marker to determine positional information of the alignment marker on the back of the base.

A face detection method is provided, including: classifying into levels time-wise continuously captured images by increasing/reducing the total number of pixels; selecting sequentially and reading out image data for all of the levels using read-out units of the same size of pixels, or a smaller size of pixels, as those of the image with the smallest size of pixels; carrying out face detection processing by extracting candidate levels in which face image data is present, based on the read-out image data for each of the levels; and, when repeating the face detection processing, setting the number of candidate levels for face detection processing from the second time onward as less than the total number of levels. A digital camera incorporating the face detection method is also disclosed.

A sheet guide includes a base on which a sheet is placed; a pinion which is rotatably provided on the base; a pair of racks which are extended in a sliding direction, which sandwich the pinion therebetween, which are engaged with the pinion to move opposite to each other in the sliding direction; a pair of positioning members which are provided at one end portions of the pair of racks respectively, and which come closer and move away from each other by movement of the pair of racks to position the sheet in the sliding direction; a sliding guide which is formed in the base and which guides the pair of racks in the sliding direction; and a pressing member which is provided on the base and which presses a portion of at least one rack of the racks to urge the at least one rack against the pinion.

The invention relates to the technical field of aerial photogrammetry, in particular to a method for adjusting tilt angles of auxiliary cameras of an aerial camera. The method comprises the steps as follows: focal distances of target montaged images are determined, and at the same time, the photograph sizes and the pixel sizes of to-be-adjusted tilting auxiliary cameras are determined; a plurality of groups of analog auxiliary images are obtained through analog computation, and each group of the analog auxiliary images are montaged, so that montaged analog images are formed; under the condition that the focal distances of the target montaged images are determined; the photograph sizes, the overlapping degrees and the edge resolutions of the images of all the montaged analog images are computed; the tilt angles of the to-be-adjusted tilting auxiliary cameras corresponding to the montaged analog images meeting constraint conditions and corresponding to the photograph sizes, the overlapping degrees and the edge resolutions of the images are taken as target adjusting angles; and installation tilt angles of four to-be-adjusted tilting auxiliary cameras are adjusted according to the target adjusting angles correspondingly. According to the method, after the tilting auxiliary cameras are adjusted to the target adjusting angles, the overlapping degrees of the obtained montaged analog images meet the constraint conditions of the overlapping degrees, and the photograph sizes of the montaged analog images are larger at the same time.

An image processing device adapted to perform image processing on image information input, and then output the image information includes a first image processing section adapted to perform image processing on the image information, and include a first storage section to store the image information, and a second image processing section adapted to perform image processing on the image information from the first image processing section, and include a second storage section to store the image information. The first image processing section performs a process of reducing an image size of the image information stored in the first storage section and raising a refresh rate, and the second image processing section performs a process of enlarging an image size of the image information stored in the second storage section.