Abstract: A practical, real-time calibration of digital omnidirectional cameras in the areas of de-vignetting, brightness, contrast, and white balance control. Novel solutions for the color calibration of an omnidirectional camera rig, and an efficient method for devignetting images are presented. Additionally, a context-specific method of stitching images together into a panorama or a mosaic is provided.

Abstract: A compact, energy efficient image sensor which enables transfer of images to an external system is made compact in size and low in power consumption comprises an image sensor control circuit 20 which operates to drive a CCD image sensor 4 and stores horizontal lines of image data in a line memory 30. An HREF signal is raised in association with the storing operation. The external system monitors the HREF and supplies an external clock EXCLK to an image sensor 2 during an H level period according to its convenience. A memory control circuit 34 sequentially outputs image data from the line memory 30 to a data bus 10 in pixel units and in synchronization with the EXCLK.

Abstract: In an image processing system, the imager gain and the exposure time are adjusted based on a predefined stepping sequence using a stepping table designed to maximize the signal-to-noise ratio in the image. This is achieved by providing a stepping sequence with each step having the largest suitable integration time (exposure) and an appropriate amplifier and digital gain setting, while achieving an equal relative percentage change in image brightness between adjacent sequence steps. The size of the executed AE steps is proportional to the distance between a current image luminance and the target luminance. This is achieved by the capability to skip one or more steps in the stepping sequence, if appropriate, for each relevant executed step, with the number of skipped steps, if any, being proportional to the magnitude of the deviation from the target brightness.

Abstract: The present invention relates to camera arrangements with backlighting detection. The camera arrangements are capable of simultaneously capturing real scene data from various viewpoints. This data may include illumination data impinging the scene. The illumination data may then be utilized to alter the apparent illumination of a second image, either real or virtual, which is to be superimposed over the real scene so that the illumination across the entire superimposed scene is consistent. The camera arrangements may utilize combinations of umbilical cables and light tubes to expand or contract the field of capture. The camera arrangements may also include in-line signal processing of the data output.

Abstract: Reducing or eliminated color-dependent vignetting in a digital camera includes: providing, for each color that said camera can image, a raw array of data corresponding to a desired scene; and changing the raw arrays such that the array for each color exhibits substantially the same amount of vignetting so as to reduce color-dependent vignetting in a composite image based upon each of the changed arrays.

Abstract: A solid-state imaging device comprises, on a semiconductor substrate, a plurality of sensor sections for storing a signal charge commensurate with a quantity of reception light, a charge transfer section for transferring and outputting the signal charge of the sensor sections, and an output section for converting the signal charge transferred by the charge transfer section into an imaging signal for output. A current controller is provided to cut off or reduce a current flowing to the output section in a signal storage period of the sensor section. This cuts off or reduces the current flowing to the output section in a signal storage period of the sensor section, and hence suppresses the amount of the current flowing to the output section in the signal storage period. Thus, wasteful consumption power is greatly reduced.

Abstract: An image processing system and method compares each pixel of an image obtained from an image sensor array with at least eight surrounding pixels of the same color in the filter array. If the signal of a given pixel is larger than the respective signals of all eight surrounding pixels of the same color, then the value of that central pixel signal is substituted with the maximum signal value among the surrounding eight pixels of the same color. Similarly, if the signal of a given pixel is smaller than the respective signals of all eight surrounding pixels of the same color, then the value of that central pixel signal is substituted with the minimum signal value among the surrounding eight pixels of the same color.

Abstract: An image processing apparatus and an image processing method permit easy adjustment of luminance and contrast, and also permit easy check of the brightness of a target image. A signal format of an image signal is determined by a determiner circuit, and an image signal of a luminance reference image that provides the standard for determining luminance is generated by a luminance reference signal generator circuit on the basis of a result of the determination. A mixing circuit generates an image signal for displaying a target image combined with a luminance reference image. The signal level of the image signal is adjusted by an adjusting circuit so as to adjust luminance and/or contrast. A discrimination display signal superimposing circuit generates a signal of a luminance identifying image superimposed in a desired luminance area. From the luminance reference image, the brightness at a desired position on an image can be easily checked.

Abstract: Method and apparatus for capturing a variable length of sensory data in association with still image data. The sensory data are generated from a sensor signal beginning prior to capture of a still image and ending a selected period after capturing the still image. The sensory data are stored in temporary storage. Still image data are generated in response to a control signal to capture a still image, and the still image data are also stored in the temporary storage. A default portion of the sensory data in association with the image data is stored in non-volatile storage. The default portion of sensory data in non-volatile storage is conditionally replaced with a selected subset of the sensory data from the temporary storage if the user selects replacement.

Abstract: A stereoscopic image-taking lens apparatus according to the present invention is attachable to an image-taking apparatus provided with an image-pickup element; wherein a shutter is changed over so that lights from the right and left optical paths are guided alternately to the image-pickup element at every predetermined time, so that parallax images are formed in time sequence on the image-pickup element. Furthermore, the stereoscopic image-taking lens apparatus sends a signal for inhibiting an image-taking operation in which the charge-storage time of the image-pickup element is longer than the predetermined time for changing over the shutter to the image-taking apparatus. Furthermore, the lens device sends a signal for changing the set allowance of a white balance to the image-taking apparatus.

Abstract: The cradle apparatus for a camera facilitates satisfactory engagement and disengagement of a camera connector, ready locking of a camera in a state in which connectors are connected, and minimization of the dustiness of the connector of the cradle is to be provided. The cradle apparatus is mainly configured of a cradle body, a box-shaped sliding member, which is slidable relatively to the cradle body and accommodates and fixes a digital camera, and a cradle connector disposed on a side of the cradle body. By sliding the sliding member in a direction orthogonal to the mounting direction of the camera after mounting the digital camera to the sliding member, a camera connector can be engaged with and disengaged from the cradle connector.

Abstract: An exposure apparatus for exposing a substrate to a pattern. The apparatus includes a stage configured to hold the substrate and to move, a driving unit configured to drive the stage, a plurality of cameras, each of the plurality of cameras being configured to sense an image of a mark for alignment of the substrate, the plurality of cameras including at least two cameras of which specifications are different from each other, a camera controller configured to supply a sync signal common to the plurality of cameras, to cause the plurality of cameras to execute image sensing based on the common sync signal, and to measure position of the mark based on the sensed image, and a drive controller configured to control the driving unit based on information provided by the camera controller. The common sync signal includes a common horizontal sync signal having a first horizontal period.

Abstract: An object of this invention is to always obtain accurate white balance regardless of photographing conditions. To achieve this object, a white balance adjustment method includes a first color temperature calculation step of calculating a first color temperature from an image signal within a white detection range out of image signals from an image sensing element, a second color temperature calculation step of calculating a second color temperature from an image signal within a chromatic color detection range out of image signals from the image sensing element, and a white balance adjustment step of adjusting white balance on the basis of the first and second color temperatures.

Abstract: An image sensing apparatus includes a photoelectric converter having a plurality of pixels covered by a color filter composed of a plurality of colors, a plurality of common readout units adapted to sequentially output signals from the plurality of pixels, a time division multiplex (TDM) unit for time division multiplexing signals from the plurality of common readout units, and a readout control unit for reading the signals from the plurality of pixels to the common readout units in such a way that signals from pixels covered by color filters of the same color are continuously multiplexed.

Abstract: For a digital imaging device having automatic gain control, a system and method have been provided for noise compensation in low-light conditions. The method comprises: receiving digital image information; compressing the image information; supplying the compressed image information; monitoring an automatic gain control signal; comparing the monitored gain control signal to a predetermined threshold gain value; in response to monitoring a high gain control signal, selecting a low-light processing algorithm; and, in response to the low-light algorithm, controlling the volume of the supplied compressed image information. Selecting a low-light processing algorithm includes selecting an algorithm that limits decreases in the compression ratio by changing parameters in a compression algorithm. Alternately, the low-light processing algorithm, prior to compressing, filters noise from the received digital image information.

Abstract: A digital camera docking system user interface provides, on the display of the digital camera, information regarding the operation of the digital camera docking system. The user interface may guide the user in the initiation of interactions between the digital camera and external devices such as television monitors, personal computers, and printers and may also provide feedback regarding the progress of these interactions.

Abstract: A method and apparatus providing a CMOS imager with an integrated controller on a common integrated circuit substrate. Also integrated on the common substrate are, a serializer circuit including a dynamic arbiter under the control of the microcontroller core and a set of extended special function registers through which data is passed to allow the microcontroller to control the CMOS imager and the serializer circuit.