Digital camera

About: Digital camera is a research topic. Over the lifetime, 12169 publications have been published within this topic receiving 137431 citations. The topic is also known as: digicam & digital still camera.

Capturing hand motion

Abstract: A portable electronic device, a digital camera associated with the portable electronic device, and software configured to run on the portable electronic device and to derive handwriting and control information from hand motion of a writing instrument in the vicinity of the digital camera.

Digital camera and document processing system using the digital camera

Abstract: A digital camera which performs accurate document reading, and is used in a document processing system. In the document processing system, a document is divided into blocks and each block is sensed by a CCD, and perspective correction is performed on the image data of each of a plurality of images obtained by divisionally sensing the document. An OCR process is performed on the corrected image data to convert the corrected image data to text data. The converted text data, corresponding to the image data of each of the plurality of images, is combined into one text data, and the combined text data is output for printing.

Image-capturing device having multiple optical systems

Abstract: In a digital camera having multiple optical systems, multiple image capturing elements are effectively driven to reduce power consumption. A digital camera has a first image capturing optical system having a lens and a first image sensor and a second image capturing optical system having a lens and a second image sensor. A controller and timing generator selects the image signal from the first image capturing optical system while controlling an operation or power of the second image sensor and a clock driver to be OFF when the zoom position falls within a first zoom range. When the zoom position falls within a second zoom range, the image signal from the second image capturing optical system is selected while an operation or power of the first image sensor and a clock driver is controlled to be OFF. An operation or power of the image capturing optical system which is not selected is stopped so that power consumption is reduced.

Cradle for digital camera

Abstract: Free setting of the angle or direction of a camera is available while the camera is being inserted into a cradle. A cradle for a digital camera is provided, which is capable of confirming a display screen of the camera, changing the recording medium or battery, or mounting or demounting a communication cable or the like while the camera is being mounted on the cradle without deteriorating the camera holding. The cradle has a structure such that a tripod screw hole is formed on the bottom surface of the cradle, thereby capable of fixing the cradle to a tripod while the digital camera is being inserted into the cradle. By making the height of rubber pads equal or higher than that of a tripod base, the cradle can be stably placed on a desk or the like. The cradle also has a structure that, among the walls holding the camera, a part of the walls that cover a liquid-crystal monitor of the camera, a media slot for a memory card, a terminal part including a power supply terminal or USB terminal is constituted by movable walls. The movable walls can be used as a simple tripod by employing a free stop structure or click stop structure.

High-performance digital color video camera

Abstract: Typical one-chip color cameras use analog video processing circuits. An improved digital camera architecture has been developed using a dual-slope AID conversion technique and two full-custom CMOS digital video processing integrated circuits, the color filter array (CFA) processor and the ROB postprocessor. The system uses a 768 x 484 active element interline transfer CCD with a new field-staggered 3G color filter pattern and a lenslet overlay, which doubles the sensitivity of the camera. The industrial-quality digital camera design offers improved image quality, reliability, and manufacturability, while meeting aggressive size, power, and cost constraints. The CFA processor digital VLSI chip includes color filter interpolation processing, an optical black clamp, defect correction, white balance, and gain control. The RGB postprocessor digital integrated circuit includes a color correction matrix, gamma correction, two-dimensional edge enhancement, and circuits to control the black balance, lens aperture, and focus.