Abstract: A method of image compressing is provided. During compressing, color intensity of the image is considered. When the color intensity of the image is relatively high, lower bits used for representing the image are dropped. When the color intensity of the image is relatively low, upper bits used for representing the image are dropped. By this, the image is compressed according to color intensity of the image. Therefore, the images with different color intensities are compressed dynamically. Correspondingly, a method of image decompressing is provided. Moreover, a compressing apparatus and a decompressing apparatus are also provided.

Abstract: An optical system includes a first set of cameras and a second set of cameras, and an optical assembly. The first set of cameras receive first light originating from each of a set of first portions of a printed circuit board. The first light transmits along a first optical path defined between each of the set of first portions and each of the first set of cameras. The second set of cameras receive second light originating from each of a set of second portions of the printed circuit board. The second light travels along a second optical path defined between each of the set of second portions and each of the second set of cameras. The optical assembly is capable of directing the first light and the second light toward the first set of cameras and the second between the printed circuit board respectively.

Abstract: According to one aspect, a method for identifying an object in an image includes steps of determining a center of the object; calculating a radius for scanning the image; scanning along a scan circle defined by the center and the radius; and identifying the object according to scanned data of the image along the scan circle.

Abstract: An image processing system is adapted to compress a captured image having a plurality of regions of interest (ROIs). The image compression device includes an image dividing unit, a resolution distribution unit and an encoder. The image dividing unit divides the captured image into a number of blocks according to a predetermined size. The resolution distribution unit distributes a display resolution to each ROI of the captured image according to predetermined display information which includes a position and a resolution level of each ROI. The resolution distribution unit further obtains the blocks covered by each ROI according to the position of each ROI. The encoder separately encodes each block in the captured image according to the resolution level of each block using predetermined rules to obtain compression strings of each block, and generates compression image based on the compression strings and the predetermined display information.

Abstract: A checking apparatus for checking holes position and size in a plate. The checking apparatus includes a memory, an image obtaining unit and a processor. The memory stores a file. The file records an expected number, size and placement of pixels representing the holes and a pixel value. The image obtaining unit obtains an image of the plate. The processor determines a target region in the image according to the values recorded in the file, scans the target region to obtain the number and placement of pixels representing the hole in the target region with a value equal to a pixel value. In addition, the processor compares the obtained number and placement of pixels representing the hole with the expected number and placement of pixels, and generates a signal to indicate the holes defined in the target region are defective if the obtained number and placement of pixels do not match the expected number and placement of pixels. A method for checking holes position and size in a plate is also disclosed.

Abstract: A burr detection apparatus includes an imaging unit and a detection unit. The imaging unit captures an original image of a stencil. The original comprises black and white pixels. The detection includes a CPU and a memory. The CPU includes an extracting module, a deciding module, a counting module, and a comparing module. The extracting module obtains a matrix image with N*N pixels, wherein N is an odd number. The deciding module decides whether the center pixel of the matrix image is a black pixel. The counting module obtains a black pixel total counted among marginal pixels which position in the margin of the matrix image in a predetermined rule. The comparing module compares the black pixel total with a predetermined threshold number, and determines that the part of the stencil corresponding to the matrix image has a burr when the black pixel total is less than the threshold number.

Abstract: An imaging system uses optical modules to capture images of a subject. The optical modules are fixed on a bearing plate of the imaging system by a fastening element of the imaging system. The fastening element is removable and fixed on the support plate. Each of the optical modules has an optical surface. The fastening element has a bevel attached to all the optical surfaces of the optical modules so that all the optical surfaces are coplanar.

Abstract: A printed circuit board includes a substantially rectangular circuit portion including operation points for connecting with electronic components, and a first margin portion adjacent to the circuit portion. The first margin portion includes groups of reference marks arranged in a first row parallel to a side of the printed circuit board. A related locating system and a locating method for locating position of the operation points of the printed circuit board are also disclosed.

Abstract: An optical system includes a first set of cameras and a second set of cameras, and an optical assembly. The first set of cameras receive first light originating from each of a set of first portions of a printed circuit board. The first light transmits along a first optical path defined between each of the set of first portions and each of the first set of cameras. The second set of cameras receive second light originating from each of a set of second portions of the printed circuit board. The second light travels along a second optical path defined between each of the set of second portions and each of the second set of cameras. The optical assembly is capable of directing the first light and the second light toward the first set of cameras and the second between the printed circuit board respectively.

Abstract: An image processing apparatus includes a reader, a plurality of matrix modules, a selector, and a controller. The reader is configured for reading data of each pixel of a binarized image. The plurality of matrix modules is configured for performing filtering operations to the data based on a control signal, the plurality of matrix modules serially connected, and a first one of the series being connected to the reader. The selector is configured for selecting one of the plurality of matrix modules based on the control signal and outputting filtered results from the selected one of the plurality of matrix modules. The controller is configured for generating the control signal. An image processing method is also provided.

Abstract: An exemplary imaging device for inspecting solder paste deposited on a printed circuit board includes a first light source, a second light source, and a camera. The first light source and the second light source are disposed adjacent to two different sides of the printed circuit board and above the printed circuit board. The first light source and the second light source project light with different colors onto the solder paste. The camera receives the light returned from the solder paste, constructs an image of the solder paste by converting the first light and the second light to electrical signals. The camera analyzes the image to identify defective portions in the solder paste based on color information and brightness information provided by the first light and the second light returned from the solder paste.

Abstract: An exemplary system for calculating the number of conductive particles dispersed in an anisotropic conductive film includes an image capturing device and an image processing device. The image capturing device captures a color image of the anisotropic conductive film. The image processing device processes the color image to generate a first binary image. The second binary image includes a plurality of first objects. The first objects occupy a first area in the first binary image. The image processing device processes the first binary image to generate a second binary image having different size with respect to the first binary image by a predetermined value. The second binary image includes a plurality of second objects. The second objects occupy a second area in the second binary image. The image processing device calculates a number of the conductive particles according to the first area, the second area, and the predetermined value.

Abstract: A method of image compressing is provided. During compressing, color intensity of the image is considered. When the color intensity of the image is relatively high, lower bits used for representing the image are dropped. When the color intensity of the image is relatively low, upper bits used for representing the image are dropped. By this, the image is compressed according to color intensity of the image. Therefore, the images with different color intensities are compressed dynamically. Correspondingly, a method of image decompressing is provided. Moreover, a compressing apparatus and a decompressing apparatus are also provided.

Abstract: An image processing apparatus includes an image sensor and a color processing circuit. The image sensor outputs single color image signals to the color processing circuit. The color processing circuit includes a delay unit and a process unit. The delay unit delays the single color image signals belonging to multiple pixels to be stored in the delay unit. The process unit retrieves the single color image signals belonging to multiple pixels simultaneously, and determines a set of complete red, green, and blue values for at least part of pixels of the image sensor using an interpolation algorithm.

Abstract: A flash-control circuit is designed for providing a high current to a load. The flash-control circuit includes an operational amplifier, a MOSFET, and a discharge power source. The operational amplifier is for receiving a pulse signal and outputting a high level voltage when the pulse signal is high. The MOSFET acts as a switch for delivering a high current to the load. The discharge power source is for providing the high current. The electrical current flows through the load, the MOSFET, then to ground when the MOSFET is on. An image capturing module using the flash-control circuit is also provided.

Abstract: According to one aspect, a method for identifying an object in an image includes steps of determining a center of the object; calculating a radius for scanning the image; scanning along a scan circle defined by the center and the radius; and identifying the object according to scanned data of the image along the scan circle.

Abstract: Methods and apparatus (4.1-4.4) for the efficient transport and routing of packets over frame-based networks are disclosed. Groups of packets are encapsulated inside of frames (4.7, 4.8) and the frames (4.7, 4.8) are transported over a multiple-access network. Each frame (4.7, 4.8) contains one or more destination addresses. Unicast, multicast, and broadcast are supported.