摘要:
A method of individually controlling exposure of a pixel during a given time period. The method includes establishing an integration interval (T) representing the given time period, and establishing in the integration interval (T) a plurality N of program sub-periods. Each program sub-period is followed by an associated integration sub-period (T'0, T'1, T'2), wherein the integration sub-periods (T'0, T'1, T'2) are of various periods of time.
摘要:
Incident light is photoelectrically converted in a one-unit pixel photoelectric converter section (300), while an electronic shuttering time two pixel mixture signal charge (301), a field signal charge 1 (302), and a field signal charge 2 (303), are transferred respectively with a 8-phase clock to HCCD1 (304), HCCD2 (305), and HCCD3 (306). After passing through a CDS & clamp circuit (307), they are subjected to a decision of signal saturation by a signal decision circuit (309). After having their outputs selected by a signal selector circuit (308), they are subjected to calculating processing in a signal processing circuit (310) to execute image signal reproduction.
摘要:
Incident light is photoelectrically converted in a one-unit pixel photoelectric converter section (300), while an electronic shuttering time two pixel mixture signal charge (301), a field signal charge 1 (302), and a field signal charge 2 (303), are transferred respectively with a 8-phase clock to HCCD1 (304), HCCD2 (305), and HCCD3 (306). After passing through a CDS & clamp circuit (307), they are subjected to a decision of signal saturation by a signal decision circuit (309). After having their outputs selected by a signal selector circuit (308), they are subjected to calculating processing in a signal processing circuit (310) to execute image signal reproduction.
摘要:
HDR image generating processing is performed which generates one image from a plurality of images captured with different exposures within an image pickup device so that increases of power consumption and frame rate reduction can be improved.
摘要:
The present invention is suitable for the technical field of vehicle monitoring, and provides a method and an apparatus for switching a region of interest, the method comprising: obtaining a frame of an image before exposure; outputting a luminance value of each partition of the image, accumulation number of pixels lower than a first set threshold, accumulation number of pixels higher than a second set threshold, to generate an evaluation data; generating eigenvalues of a plurality of illuminance evaluation areas based on the evaluation data and the preset illuminance evaluation area distribution table; estimating the illuminance of an environment of a vehicle according to the eigenvalues of the plurality of illuminance evaluation areas and differentiation characteristics between normal illuminance and low illuminance; switching the region of interest of a current exposing image based on the estimating results, generating a weight table based on the content of the current exposing image and the switched region of interest, controlling the exposing of the region of interest based on the weight table. The present invention makes image partitions which is concerned by the monitoring required areas and the intelligent algorithm are highlighted in details, so that to facilitate recognition and abnormality estimation, which makes the details clear while avoid overexposing the region of interest.
摘要:
The present disclosure provides a method for generating an HDR image. The method includes: providing (S1) an image sensor, in which the image sensor includes a pixel array and a filter array disposed on the pixel array, and each filter unit in the filter array covers a plurality of pixel units in the pixel array so as to constitute a pixel structure unit; and performing (S2) an exposure control to the pixel units within each pixel structure unit respectively, in which a first part of the pixel units are exposed for a first exposure time, a second part of the pixel units are exposed for a second exposure time, and the first exposure time is greater than the second exposure time.
摘要:
A solid-state imaging device includes a photodetecting unit, a row control unit, a column control unit, and a signal readout unit. The photodetecting unit includes M×N pixel units P(1,1) to P(M,N) two-dimensionally arrayed in M rows and N columns. Each pixel unit P(m,n) includes a photodiode PD, an amplifying transistor Tr1, a transfer transistor Tr2, a readout transistor Tr3, a first initialization transistor Tr4, and a second initialization transistor Tr5. One of the transfer transistor Tr2 and the first initialization transistor Tr4 performs an on/off operation based on a control signal output from the row control unit, and the other performs an on/off operation based on a control signal output from the column control unit. Thus, a solid-state imaging device capable of setting an accumulation period of various patterns different for each pixel is realized.
摘要:
The present invention concerns a method of obtaining a tone-mapped high dynamic range media item in an imaging apparatus comprising a vision sensor comprising an array of cells, each cell comprising a processing element and a media element configured to communicate with the processing element. The processing elements comprise a first register and a second register. The method comprises for each of the cells in the array of cells: defining (31) a first neighbourhood set comprising a first number of media elements and a second neighbourhood set comprising a second number of media elements different from the first number of media elements; setting (33) a first logical condition for the first neighbourhood set and a second logical condition for the second neighbourhood set; integrating a photocurrent value resulting from an exposure of the media element to light, and storing a resulting evolving integrated photocurrent value in the first register of the respective cell; determining a first conditioning value for the first neighbourhood set and a second conditioning value for the second neighbourhood set; as long as the first conditioning value fulfils the first logical condition and the second conditioning value fulfils the second logical condition, copying (41) the value from the first register into the second register at given time instants; and reading (43) the value from the second register.
摘要:
In a vehicle-mounted camera system, an appropriate white balance correction processing according to a situation is executed to a long exposure time image and a short exposure time image shot in variously changing illumination environments. A vehicle-mounted camera system (100) includes a vehicle-mounted camera (10) that performs relatively long exposure time shooting and short exposure time shooting, a signal processing device (20) (signal processing device) that executes a white balance correction processing for each of a long exposure time image and a short exposure time image, composes these images after the white balance correction processing, and generates a high dynamic range image, and a system control part (40) (processing switch device) that obtains an illumination environment in which the vehicle is placed, and switches the white balance correction processing for the long exposure time image and the white balance correction processing for the short exposure time image according to the illumination environment.
摘要:
An electronic apparatus includes: an input unit that inputs image data generated by an image capturing unit that has a plurality of imaging regions and that has different imaging conditions for each of the imaging regions and data for the imaging conditions for each of the imaging regions; and a recording control unit that records the image data and the data for the imaging conditions that are inputted from the input unit in a recording unit, wherein the recording control unit records the image data in a recording region of the recording unit which is read after the data for the imaging conditions for each of the image regions.