45 results about "Delayed imaging" patented technology

The invention discloses an optical coherence tomography method and an optical coherence tomography system for a complex polarization frequency domain. The method comprises the following steps of: on the basis of optical coherence tomography of a polarization frequency domain, driving a reference plane mirror of a reference arm to vibrate by a phase modulation device, introducing sinusoidal phase modulation while transversely scanning a sample, performing processing such as Fourier transform on acquired interference signals of horizontal and vertical polarization channels to obtain chromatography signals of the horizontal and vertical polarization channels without parasitic images, extracting magnitudes and phases of the chromatography signals respectively, and calculating to obtain an intensity image, a fast axis image and a delay image of the sample with double refraction properties within a full-depth range. According to the method, the imaging speed is high, a complex conjugate mirror image, a direct-current background and the self-coherence noise in the coherent tomography of the polarization frequency domain are removed, the sensitivity cannot be reduced along with the prolonging of a transverse scanning distance, and the method is not sensitive to motion blur in the sample.

Disclosed are an apparatus and method for converting 2D input image signals into 3D stereoscopic image signals and outputting the converted 3D stereoscopic image signals. According to the method of converting image signals according to an embodiment of the present inventive concept, first, motion information about a current frame that is 2D input image signals is acquired, and then a motion type of the current frame is determined using the acquired motion information. As a result of the determination, if the motion type of the current frame is a horizontal motion frame, it is determined whether the current frame is a scene change frame. If the current frame is the horizontal motion frame and is not the scene change frame, 3D output image signals are generated using a current image and a delayed image. If the current frame is not the horizontal motion frame, or if the current frame is the horizontal motion frame and the scene change frame, a depth map is applied to the current image and 3D output image signals are generated. In this case, the depth map is acquired using the horizontal boundary and a difference in a sense of depth according to a vertical location to embody a stereoscopic image.

The invention provides a method for eliminating the interlacing of image signal, which is characterized in comprising the following steps: a border part between the line image data in predefined column image field and the image data of scheduled line is found, and the interpolation data in the image field is obtained according to the border part; the movement value is extracted by utilizing the image data in current image field and the delay image data of two image fields; the film image is extracted according to the extracted movement value; the extracted movement and an image field delay movement value are compared, and a rapid-movement image is detected; the interpolation data and the image data generated in previous image field can be obtained through the interpolation according to the movement value, detecting rapid-movement image and film image. The image signal interlacing eliminating method has the advantages that: the interlaced scanning can be prevented from being transformed into a ladder shape of oblique line straight flange when the image is in sequential scanning, so the border part can be connected in a smooth straight line shape; For the part in rapid movement, the horizontal ripple residual image can be avoided. Furthermore, the image quality can be improved by restoring the image in film mode close to the original image.

A liquid crystal display and a driving method therefor comprises a plurality of pixels arranged in a matrix; data lines and gate lines connected to the pixels; a signal controller processing first image data and a plurality of control signals from an external device and transmitting the processed first image data and control signals; and a data driver connected to the signal controller, wherein the signal controller divides the first image data into and sequentially processes a plurality of sets respectively including the first image data for at least two pixel rows, while delaying the remaining image data excluding the last image data among the first image data of each of the sets, and the data driver applies a charge sharing voltages as impulse voltages to the predetermined number of pixel rows during the delayed time, thereby displaying impulse images. In this way, since impulse images are displayed only by delaying image data within the same time and separate black image data are not transmitted, the data transmission frequency is not increased.

An image-capture device includes: an image-capture section that captures an image of a subject; a detector that detects a portion of the subject, the portion having a specific feature, from the image captured by the image-capture section; an evaluator that determines a numerically expressed evaluation value of the specific feature of the portion detected by the detector; a buffer section that temporarily stores delayed images corresponding to a predetermined amount of time; and a recording-operation controller that controls the image-capture device to record image data including a predetermined delayed image in the buffer section, upon determining that the evaluation value satisfies a predetermined condition.

An image filter circuit generates unsharp image signals to subject image signals to a dodging treatment which adjusts areas of exposure over an entire image within an image processing apparatus for image processing the image signals. The circuit includes an IIR type filter for carrying out a filtering treatment to generate the unsharp image signals. It further includes a FIFO type field memory for delaying image signals which are not subjected to the filtering treatment at the hR filter for a time corresponding to the delay time of image signals which have been subjected to the filtering treatment at the IIR type filter. The image filter circuit, which obtains the unsharp image signals corresponding to an unsharp mask for obtaining a dodging effect, can be made small in size with a simplified circuit arrangement.

An image forming apparatus performs a single-side image formation such that, when a delay is needed, a stacked sheet discharge control section controls a sheet carrying mechanism so that: a first sheet (for a second imaging job) to be discharged after passing a first sheet-discharging roller via a first sheet-carrying path is directed to another carrying path without being discharged, and is stood by therein. The first sheet and a second sheet (for the second imaging job) which is carried to the first sheet-discharging roller via the first sheet-carrying path after the first sheet, then are concurrently discharged overlappingly. This eliminates needs for delaying image formation for the second imaging job, and for securing time for post-process for the first imaging job. Even if a delay is inevitable, this reduces the delay time greatly and improves the productivity of the image forming apparatus, without reducing its performance wastefully.

A first adding circuit sums an input image signal of a target pixel and a value that is derived by multiplying respective display errors of three pixels, which are before the target pixel by one line, by weighting factors. A gradation candidate converter converts the gradation of the summed image signal to a plurality of available gradation candidates that are convertible when an error of the immediate left pixel is added. A delaying circuit delays the summed image signal. A second adding circuit sums the delayed image signal and a value that is derived by multiplying the error generated in the immediate left pixel by a weighting factor. A gradation selector selects a gradation closest to the gradation of the image signal to which the error is added from a plurality of gradation candidates, and outputs it as an image signal of the target pixel. A differencing circuit determines a display error of the target pixel.

A method and an apparatus for filtering motion vector fields provided by a motion estimator apparatus are disclosed. The method includes receiving an input image, determining a motion vector field associated with the input image, determining a local segmentation image, forming a lattice map to identify periodic structures, using the local segmentation image and the lattice map to obtain an image segment pixel count and an image / motion segment pixel count, and using the segment pixel count and the image / motion segment pixel count to provide a filtered motion vector field. Some embodiments further include a motion estimation apparatus including an image delay apparatus, a lattice detector to find lattice structures in the input and delayed images, a histogram generator and a histogram analyzer to provide a set of horizontal and vertical search masks, a motion vector estimator to provide a motion vector field, and a motion vector filter as provided herein.

By rendering lower half of 30 FPS in the processing of even numbered frame of 60 fps and rendering upper half of 30 fps in the processing of odd numbered frame, the processing load of the processor 70 can be reduced to half. Thus, by delaying image rendering, the image quality degradation can be prevented, therefore stable high-quality images can be displayed.

In a case where image data of a part of cameras is delayed, an image composing and re-encoding apparatus of an image display system generates and re-encodes incomplete composed image data in which a part of slices is absent and then transmits the incomplete composed image data. Then, when delayed image data is received from any one of the cameras, the image composing and re-encoding apparatus re-encodes and transmits the delayed image data alone. In a case where the incomplete composed image data is received, when the delayed image data is received thereafter, an image display apparatus generates complemented composed image data by complementing the image data. On the other hand, when the delayed image data is not received, complemented composed image data is generated by complementing the absent slice with past image data.

The present invention discloses a driving panoramic auxiliary device applied to a vehicle. The device is mainly composed of a lens group, an image processing module and a display unit, wherein the lens group can photograph a plurality of external images around the vehicle; the image processing module comprises an image joint processing unit capable of jointing the external images into a vehicle external panoramic image, and an image delay processing unit capable of, according to a driving path of the vehicle, dividing the vehicle external panoramic image overlapped with the driving path into a plurality of delay images, and attaching to an underbody image separated by the vehicle external panoramic image in order from the delay image adjacent to the underbody image according to a delay time; and the display unit can display the vehicle external panoramic image via the image delay processing and a fully-transmissive image formed by the underbody image.