Abstract:
The invention relates to an image pickup apparatus including a pixel section in which plural pixels are arrayed two-dimensionally, an exposure amount control section that determines an exposure amount and controls the pixel section to be continuously exposed plural times, a memory section that can store a pixel signal from the pixel section for plural frames of an output image, a vertical scanning circuit that reads out the pixel signal of the pixel section and stores the pixel signal in the memory section, and a column processing section that reads out the pixel signal stored in the memory section. The vertical scanning circuit sequentially reads out respective pixel signals related to the plural times of exposures and stores the pixel signals in the memory section.
Abstract:
A image sensor includes active pixels for gathering images at very high and very low luminance level. Each pixel includes at least one photodiode, a charge storage node, an electron multiplication amplification structure, a unit for transferring electrons from the photodiode to the structure, a unit for transferring electrons from the amplification structure to the storage node after multiplication, a transistor for reinitializing the potential of the storage node. The pixels are read by a reading circuit which samples the potential of the charge storage node after reinitialization and after transfer of the electrons into the storage node and which provides a corresponding illumination measurement. The sensor furthermore includes a unit for carrying out the integration of charge in two different durations in the course of one and the same frame, and for giving the amplification structure multiplication factors different to the charge integrated in the course of these durations.
Abstract:
An image sensor for electronic cameras includes a plurality of light sensitive pixels arranged in rows and columns for generating exposure proportional signals, wherein the pixels of a respective column are coupled to at least one respective column read-out circuit via at least one respective column line, and wherein the respective column read-out circuit includes at least two column amplifiers which are connected in parallel, and includes a control device for controlling a read-out process of an image, wherein the read-out process for the respective pixel includes at least one read-out cycle. The gain factor of at least one of the two column amplifiers of the respective column read-out circuit is adjustable.
Abstract:
An image processing apparatus obtains a motion vector between at least three images including first, second, and third images obtained through continuous shooting under different exposure conditions and computes a first motion vector between the first and second images and a second motion vector between the first and third images in a plurality of positions on the first image. A reliability level of the motion vector is determined, and an estimated motion vector between the first and second images is computed for the first motion vector having low reliability based on the second motion vector computed in the corresponding position and the shooting interval between the images. In a case where the second motion vector computed in a position corresponding to that of the first motion vector having low reliability has high reliability, the first motion vector having low reliability is substituted with the estimated motion vector.
Abstract:
A method for controlling a pixel including at least one photodiode capable of being connected to a sense node, the method including the steps of: a) at the beginning and at the end of a first integration period included within a second integration period, controlling the pixel to transfer the charges stored in the photodiode above a first threshold onto the sense node; and b) at an intermediate time between the beginning of the second period and the beginning of the first period, controlling the pixel to transfer the charges stored in the photodiode above the first threshold onto the sense node.
Abstract:
An imaging device includes: an imaging unit that images a subject with three or more kinds of exposures, ratios of respective pairs of exposures of which adjacent to each other in an ascending order or a descending order are equal; and a combining unit that combines, on the basis of the ratios, pixel signals corresponding to the respective three or more kinds of exposures obtained by imaging the subject with the imaging unit.
Abstract:
The present invention discloses an image pickup device, an image preview system and an image preview method thereof. The image pickup device comprises an image pickup module, an image processing module and a display module. The image pickup module is arranged for capturing a plurality of images. The image processing module is arranged for scaling down pixels of each image to generate a plurality of adjusted images, and combining the plurality of adjusted images to generate a preview image. The display module is arranged for displaying the preview image. Wherein, the image processing module is arranged for rendering a high dynamic range image according to the plurality of images while the plurality of adjusted images is blended.
Abstract:
Methods and apparatuses for generating a low dynamic range image for a high dynamic range scene. In one aspect, a method to generate a low dynamic range image from a high dynamic range image, includes: determining one or more regions of the high dynamic range image containing pixels having values that are outside a first range and inside a second range; computing a weight distribution from the one or more regions; and generating the low dynamic range image from the high dynamic range image using the weight distribution. In another aspect, a method of image processing, includes: detecting one or more regions in a first image of a high dynamic range scene according to a threshold to generate a mask; and blending the first image and a second image of the scene to generate a third image using the mask.
Abstract:
A physical quantity detecting device includes a pixel array and a vertical driving circuit. In the pixel array, pixels each for converting a physical quantity supplied from the outside into an electric signal and storing the electric signal are two-dimensionally arranged in a matrix. The vertical driving circuit scans a plurality of sets of read rows so that a storage time for each of the electric signals differs from one another and performs a shutter operation on a shutter row in synchronization with a readout operation performed on the corresponding set of read rows out of the plurality of sets of read rows during 1H period that is a unit of time of scanning.
Abstract:
The invention relates to an image pickup apparatus including a pixel section in which plural pixels are arrayed two-dimensionally, an exposure amount control section that determines an exposure amount and controls the pixel section to be continuously exposed plural times, a memory section that can store a pixel signal from the pixel section for plural frames of an output image, a vertical scanning circuit that reads out the pixel signal of the pixel section and stores the pixel signal in the memory section, and a column processing section that reads out the pixel signal stored in the memory section. The vertical scanning circuit sequentially reads out respective pixel signals related to the plural times of exposures and stores the pixel signals in the memory section