摘要:
A camera includes a light transmitter configured to transmit light pulses at a first rate, a light receiver configured to receive return signals corresponding to the light pulses transmitted by the light transmitter, and a sampler configured to sample electrical signals corresponding to the return signals received by the light receiver, wherein the sampler is configured to sample the electrical signals at a second rate that is lower than the first rate.
摘要:
A system and method for focusing an image capture device are disclosed. One embodiment is a method comprising moving an autofocus window in response to detected movement of the image capture device.
摘要:
A photography system includes a digital camera and a remote control. The remote control emits a light that the photographer can use to designate a subject to be photographed by pointing the remote control at the subject, casting a light spot on the subject. In a preferred embodiment, the light is generated by a laser pointer included in the remote control. The camera selects a region to photograph from its field of view, based on the location or motion of the light spot. The camera may optionally select a region that is centered on the light spot. The photographer may optionally specify the size of the region to be selected. The camera may optionally adjust the size of the selected region to assist in photographic composition. The camera may optionally be capable of making video recordings.
摘要:
A method and apparatus for detecting surface defects and artifacts on a transmissive image in an optical image scanner and correcting the resulting scanned image. In one scan, the image is scanned normally. Surface defects and artifacts such as dust, scratches and finger prints are detected by providing a separate scan using infrared light or by measuring light (white or infrared) that is scattered or diffracted by the defects and artifacts. Separate optical paths for illumination may be used, or separate optical paths for intensity measurement may be used. Image processing may then be used to correct areas in the normal scan corresponding to defects identified in the separate scan.
摘要:
A system and method for generating multiple processed images from a single captured image generated by an electronic imaging device. In one embodiment, a digital camera includes multiple sets of operating parameters which may be advantageously configured according to the demands of particular photographic environments. For each image captured by a digital camera as raw data, the data is processed according to each parameter set prior to compression, storage in temporary memory, and ultimate upload onto a computer or other permanent storage device.
摘要:
An apparatus and method of processing images in a digital camera and improving the quality of images produced by camera processing software. In low-light digital camera photography, a dark frame image is subtracted from an original picture image to form a resulting image. The resulting image formed from the dark frame subtraction is evaluated for negative and invalid pixel values. Each negative and invalid pixel value is replaced using a pixel replacement algorithm with appropriate positive values.
摘要:
The shutter of a digital imaging device may be calibrated by comparing a characteristic of two separate exposures obtained from a single field of the device's imaging sensor during a single exposure cycle. Calibrating the shutter in this manner facilitates the accuracy of even very short exposure times.
摘要:
A digital imaging device automatically detects that a subject is too close to the device for acceptable focus to be achieved and informs the user, takes automatic corrective action, or both.
摘要:
When using a strobe in capturing a digital image is determined to be imminent, a pre-capture image may be saved from which iris-color information can be derived. The iris-color information derived from the pre-capture image may be used to improve red-eye correction of the captured digital image.
摘要:
A reflector (R) having an improved neck section that increases the useful light output of the lamp is disclosed. The reflector lamp comprises a concave reflector having a primary reflective surface with a parabolic shape, one or more intermediate reflective surfaces with a parabolic shape substantially confocal with the primary reflective surface, and an improved neck section comprising a reducing section, a first substantially straight cylindrical section, an expanding section and a second substantially straight cylindrical section.