Abstract: A solid state imaging device includes shared amplification transistors and reset transistors arranged, for example, in a checkered pattern so that centroid of photo diodes 2 of the same colors are arranged substantially at an identical pitch. As a result, the resolution of the solid state imaging device can be maintained without considering irregularities of the incident light for each unit pixel.
Abstract: An apparatus and a method for outputting high-quality images in which both jerkiness and blur are reduced are provided. At generation of moving images to be output at a certain frame rate, movement velocities of a subject according to the frame rate of the output images are calculated in units of partial areas in each frame image constituting the moving images, optimal shutter speeds to reduce degradation of the output images are obtained as optimal imaging shutter speeds corresponding to the movement velocities in units of partial areas, images corresponding to the obtained optimal shutter speeds are generated in units of partial areas, and frame images generated by combining the generated partial area images are output. According to this configuration, high-quality images in which both jerkiness and blur are reduced can be output.
Abstract: A method and associated architecture for dividing column readout circuitry in an active pixel sensor in a manner which reduces the parasitic capacitance on the readout line. In a preferred implementation, column readout circuits are grouped in blocks and provided with block signaling. Accordingly, only column output circuits in a selected block significantly impart a parasitic capacitance effect on shared column readout lines. Block signaling allows increasing pixel readout rate while maintaining a constant frame rate for utility in large format high-speed imaging applications.
Abstract: An apparatus, method, and medium for generating an image is provided. The apparatus includes an optical module, a filter module which includes a wide-band filter area that allows transmission of optical signals within a wavelength band corresponding to a color of a predetermined color, a narrow-band filter area that allows transmission of optical signals within a wavelength band corresponding to the predetermined color, and an all-pass filter area that allows transmission of optical signals in all wavelength bands, and an image generation module which generates an image by processing optical signals that transmit through the filter module, wherein the image generation module applies different weights to optical signals according to which of the wide-band filter area, the narrow-band filter area, and the all-pass filter area the optical signals respectively transmit through.
July 6, 2007
Date of Patent:
October 4, 2011
Samsung Electronics Co., Ltd.
Francisco Imai, Won-hee Choe, Jae-hyun Kwon, Seong-deok Lee, Sung Ho Park
Abstract: An image capture device provided with a first memory unit, which memorizes position information of non-continuous defective pixels of a solid-state image capture component, and a second memory unit with a higher access rate than the first memory unit, which memorizes position information of continuous defective pixels. When a continuous photography mode or a video photography mode is set, defective pixel correction processing is carried out on image data corresponding to each of defective pixels according to the defective pixel position information stored at the second memory unit. Alternatively, when a still photography mode is set, image data corresponding to all defective pixels is corrected, based on both the defective pixel position information stored at the first memory unit and the defective pixel position information stored at the second memory unit. As a result, it is possible to correct defective pixels with high efficiency in accordance with conditions of photography.
Abstract: An imaging apparatus includes a nonvolatile memory storing multiple kinds of parameters, a volatile memory storing temporarily the parameters read out from the nonvolatile memory, a processing part executing a processing using the parameters stored in the volatile memory and a data controlling part reading out the parameters from the nonvolatile memory according to a provided clock and transferring the parameters to the volatile memory, and the imaging apparatus includes a first timing-adjusting part outputting a first clock for reading out a part of the multiple kinds of parameters stored in the nonvolatile memory to the data controlling part, when the imaging apparatus is powered on, and a second timing-adjusting part outputting a second clock for reading out another part of the multiple kinds of parameters stored in the nonvolatile memory to the data controlling part, while the imaging apparatus is preparing for image shooting.
January 15, 2008
Date of Patent:
September 13, 2011
Akihiko Morishita, Takafumi Toyoda, Daiki Ito
Abstract: A color processing method which sets viewing conditions easily and properly from shooting conditions added to an image. Shot image data and shooting conditions of the image data are obtained. Input side viewing conditions from the obtained shooting conditions are set. The image data with a color appearance model based on the set input side viewing conditions are converted.
Abstract: Optical motion sensing systems and methods are described. In one aspect, light from subfields of a scene is focused onto respective capture areas of a focal plane. Successive sets of contemporaneous local images are captured from the focused light. Respective saliency measures are derived from respective ones of the local images. Respective local motion measures are determined from comparisons of corresponding ones of the local images in ones of the contemporaneous local image sets. A respective global motion measure is produced for each of the contemporaneous local image sets based on the respective ones of the local motion measures and the respective ones of the saliency measures.
August 7, 2006
Date of Patent:
September 6, 2011
Avago Technologies General IP (Singapore) Pte. Ltd.
Rene Helbing, Todd Sachs, Michael J. Brosnan
Abstract: An image pickup device includes a signal processing unit which processes a signal generated by separating a luminous signal into wavelength components of two or more colors by use of a sensor unit including two-dimensionally arranged pixels to which a wavelength separating unit for separating light wavelengths is arranged at a front face of a photoelectric converting element which converts the luminous signal condensed by an optical lens unit into electric signals, wherein the optical lens unit includes at least one optical lens having different focusing positions in accordance with the wavelengths of the luminous signal, and the signal processing unit includes an outline signal generating unit which extracts an outline signal from an output signal of the sensor unit.
Abstract: An image capture device includes an image pickup unit including a plurality of pixels and photoelectrically converting an object image by the plurality of pixels; a white balance control unit for performing a white balance correction processing on pixel signals from the image pickup unit; and a sensitivity changing unit for changing the sensitivity of photographing, wherein the white balance control unit performs the white balance correction processing such that, as the sensitivity increases, a response to the light source is suppressed.
Abstract: A method for calibration of an imaging device that includes a sensor and optics for forming an image on the sensor. The method includes making a first image quality measurement, based on an output of the sensor, while imaging a first target at a first distance from the device and varying an offset between the optics and the sensor. A second image quality measurement is made while imaging a second target at a second distance from the device, which is different from the first distance, and varying the offset between the optics and the sensor. A working point of the optics is set relative to the sensor responsively to the first and second image quality measurements.
May 22, 2008
Date of Patent:
August 16, 2011
Tessera Technologies Ltd.
Liron Nunez Weissman, Uri Kinrot, Alex Alon, Irina Alon
Abstract: A solid-state imaging apparatus including: an image section having a plurality of pixel units arranged into a matrix, each pixel unit having at least one subunit consisting of an electric charge generation means for generating signal electric charges corresponding to the amount of incident electromagnetic wave and a signal transfer means for transferring signal electric charges generated by the electric charge generation means, an electric charge accumulation means for accumulating the transferred signal electric charges, a first reset means for resetting the electric charge accumulation means, an amplification means for amplifying a signal corresponding to signal electric charges accumulated at the electric charge accumulation means, and a select means for selectively outputting the amplified signal to a vertical signal line; and a signal transfer assisting means for making a gradient of potential in the vicinity of the electric charge generation means toward the signal transfer means to be greater at the ti
Abstract: A blur correction mechanism includes: a first guide shaft extending in a first direction, the direction being a predetermined direction orthogonal to the optical axis of the lens groups; a base frame supporting the first guide shaft; a first correcting moving frame supported by the base frame so as to be movable in the first direction via the first guide shaft; a second guide shaft extending in a second direction orthogonal to both the optical axis and the first direction, and being supported by the first correcting moving frame; and a second correcting moving frame supported by the first correcting moving frame so as to be movable in the second direction via the second guide shaft, and holding the lens groups therein. The first guide shaft and the second guide shaft are positioned so as to be substantially coplanar in a plane orthogonal to the optical axis.
Abstract: This invention provides an image pickup device comprising a plurality of pixels each including a photoelectric conversion unit, a semiconductor area to which a signal from the photoelectric conversion unit is transferred, a transfer switch for transferring the signal from the photoelectric conversion unit to the semiconductor area, and a read unit for reading out the signal from the semiconductor area, and a drive circuit for outputting a first level at which the transfer switch is set in an OFF state, a second level at which the transfer switch is set in an ON state, and a third level between the first level and the second level, wherein the drive circuit controls to hold the third level for a predetermined time while the transfer switch is changing from the ON state to the OFF state.
Abstract: A digital imaging device and methods thereof that will enable the embedding and retrieving of information in digital images are provided. The digital imaging device includes a capture module for capturing an image and creating a digital image file; an input module for inputting information regarding the captured image; and a processing module for associating the inputted information to the digital image file. The device further includes a scanning module for reading a symbology associated with a printed digital image and wherein the processing module is adapted to use the symbology to retrieve the associated information of the digital image file. The device may be embodied as a digital camera, a mobile phone, personal digital assistant (PDA), etc.
Abstract: A scan conversion device includes a first buffer unit, a pixel packing unit, a second buffer unit, and a scan output unit. The first buffer unit stores therein pixel signals of the input image on every line in a main scanning direction thereof. The pixel packing unit groups N (N?2) pixel signals on each line into pixel signal packs according to a predetermined pixel combination rule, and outputs them sequentially. The second buffer unit stores therein the pixel signal packs and aligns them in a second main scanning direction different from the main scanning direction. The scan output unit sequentially outputs the pixel signal packs aligned in the second main scanning direction. According to this configuration, a scan pattern of the input image is changed into a scan pattern of outputting every N output lines in the second main scanning direction.
Abstract: An image sensor includes a plurality of vertical CCDs; first HCCD receiving charge packets from even numbered vertical CCDs; and a second HCCD receiving charge packets from odd numbered vertical CCDs; wherein four charge packets are summed together from the first HCCD, and four charge packets are summed together in the second HCCD such that the summing process in the second HCCD begins one or two charge packets spatially after the first charge packet of the four charge packets summed in the first HCCD.
Abstract: An exposure compensation method automatically generates an accurate exposure value to clearly show the profiles of objects in front of a black background or a white background. First, initial edge energy is derived from luminance values for pixels in a digital image having an initial exposure value. Maximum edge energy is obtained by varying an exposure compensation value for the digital image, and an optimal exposure compensation value according to the maximum edge energy is also obtained. If a difference between the maximum edge energy and initial edge energy is larger than a threshold value, a current exposure value is set to the initial exposure value compensated by the optimal exposure compensation value. Otherwise, the initial exposure value is directly designated as a current exposure value.
Abstract: A method of obtaining a spatial low pass filtered images from the video output of a video camera operable to produce successive video frames in the form of pixelated 2D sensed images. Each of the sensed images has a first predetermined number of rows of pixels and a second predetermined number of columns of pixels. The method may include scanning the sensor array row by row, and deriving the value of each pixel of said low spatial frequency image in such a way that said low spatial frequency value of a pixel is dependent on at least all earlier scanned pixels of the current row and all earlier scanned rows, but is not dependent on the pixels of rows located below a pixel row which is a third predetermined number of rows below the current row, said third predetermined number being significantly less than said first predetermined number.
Abstract: An apparatus for increasing a digital camera image capture rate comprises an imaging device for capturing raw image data, a frame buffer for receiving the image data, a first RAM spooler for transferring the raw image data to a RAM disk, a first flash spooler for transferring the raw image data from the RAM disk to a flash memory, an image processor for processing and compressing the raw data, a second RAM spooler for storing the compressed image data into the RAM disk, and a second flash spooler for transferring the compressed image data from the RAM disk to the flash memory.