70results about How to "Reduce the amount of image data" patented technology

When a subject is imaged for the purpose of deciding the angle of view, the full image that is capable of being sensed by a CCD is displayed on an LCD. The user designates the position of a cropping area in the image being displayed. Only image data representing the image within the border of the designated area is recorded on a memory card. Since the amount of image data to be recorded on the memory card is thus reduced, image data representing images of a greater number of frames can be recorded on the memory card.

In transmitting image data from multiple cameras to an image processing section to produce a synthesized image from respective camera images, the amount of data transmitted through a transmission path can be cut down without sacrificing the quality of the synthesized image. In accordance with a correspondence between the synthesized and camera images as described on a mapping table, a resolution specifier specifies resolutions, which should be necessary for image synthesis, for respective areas of each camera image. A compressor, provided for each of the cameras, compresses the associated camera image data according to the resolutions specified. In this manner, the image data, which has been compressed in accordance with the correspondence between the synthesized and camera images, is transmitted through the transmission path.

The invention relates to a method for automatically detecting a pre-defined image pattern in an original picture, wherein pixel data from said original picture are looked through by means of a processing step, including at least one transform, to find said pre-defined image pattern, wherein according to the invention said processing is split up into at least two stages, wherein a first stage with a coarse processing is to detect locations in the original picture imposing an increased likelihood that the pre-defined image pattern, can be found there, and wherein a second stage with a refined processing is applied to the locations to identify the pre-defined image pattern.

The invention discloses a laser-vision linked night invasion detection device, which realizes the detection and identification of invasion events by laser detection and active vision technology at night. The invention relates to invasion detection technology in security protection, in particular to optoelectronic and visual information processing technology-based invasion detection. The technical problems needing to be solved are to detect and identify the invasion events of pedestrians or vehicles in an environment with poor light at night, and prevent false alarms. In the device, a modulated laser beam is used as a detection light source and is matched with a photoelectric signal collector, a photoelectric signal amplifier and a photoelectric signal processor to form a front-end unit; and a camera provided with active illumination and an embedded image processor are used as a rear-end response processing unit. When the invasion events occur in a detection area, a laser photoelectric signal is interrupted to trigger an active vision system so as to realize linkage and improve the reliability of the invasion detection. The laser-vision linked night invasion detection device can be used for anti-invasion security detection around residential areas, storerooms, airports and other important places.

An imaging apparatus and an imaging method supply an optimum amount of image data to another apparatus. When a PDA has a maximum transfer rate of 1.5 Mbps, a mobile phone determines that the maximum speed of communication with the PDA is low, reduces the amount of moving image data captured by a CCD of the mobile phone accordingly, and supplies the captured moving image data to the PDA. The PDA therefore displays a low-quality moving image on its display unit. When the PDA has a maximum transfer rate of 480 Mbps, the CPU of the mobile phone leaves unchanged the amount of moving picture data captured by the CCD and supplies the captured moving image data to the PDA. The PDA then displays a high-quality moving image on its display unit. The foregoing may be advantageously applied to digital cameras.

An image pickup apparatus for outputting image data on an image for which image processing is executed to a computer, the image pickup apparatus including: a thermal image capturing camera for capturing a thermal image; a visible-light camera for capturing an image under a visible light; a temperature zone extracting portion for detecting and extracting a portion corresponding to a predetermined temperature zone given from an outside from the thermal image; a background image extracting portion for extracting an image of an immobile object in the image captured under the visible light by the visible-light camera as a background image; and a synthesizing/outputting portion for synthesizing the portion extracted by the temperature zone extracting portion, and the background image extracted by the background image extracting portion with each other, and outputting image data on a resulting synthetic image.

According to the present invention, there is provided an image forming apparatus configured to print a predetermined test chart that corresponds to an image defect to be analyzed, and to transmit the printed test chart to an image diagnostic apparatus as scanned image data. The image forming apparatus comprises an image forming unit that prints the test chart; a scanning unit that scans the test chart printed by the image forming unit and acquiring the image data; and a transmission unit that transmits the image data of the test chart scanned by the scanning unit, after changing a size of the image data corresponding to the defect.

The invention provides an image processing method for positioning a touch screen, which comprises the following steps: firstly, an image shooting module is initialized; secondly, a plurality of image sensors in the image shooting module perform synchronous shooting, and an image processing module performs time-sharing read on image data of effective shooting areas of various image sensors; thirdly, two storage areas the memory spaces of which are both one frame, wherein the other memory space is used for reading out the image data when one memory space is used for writing in the image data, the two memory spaces are alternately transformed and write-in and read-out are simultaneously performed; and fourthly, communication between the image processing module and a host computer is performed, and a position coordinate of a final touch point is determined. The image processing method for positioning the touch screen has the advantages of low cost, high positioning precision and quick transmission speed.

The invention discloses a character detection method and device, and the method comprises the steps of obtaining a to-be-detected image, and converting the to-be-detected image into a grayscale image;converting the grayscale image into a binary image through binarization; performing morphological transformation on the binary image; and obtaining a contour of a color area representing a characterpart in the binary image after morphological transformation, and determining an area corresponding to the contour in the to-be-detected image as a character detection area. By utilizing the method, the character detection speed can be increased, the character detection accuracy is improved, and the user experience is improved. The invention also discloses a corresponding apparatus and a computer readable storage medium.

A stereo matching method based on image intensity quantization is revealed. The method includes several steps. Firstly, provide computer an image pair of an object for image intensity quantization of the image pair to get a quantization result. Then according to the quantization result, a first extracted image pair is generated and used to get a first disparity map. A second extracted image pair is generated similarly to get a second disparity map. Next the two disparity maps are compared with each other to get an image error data. When an error contained in the image error data is smaller than or equal to an error threshold value, the computer outputs the second disparity map. Moreover, accuracy of disparity maps is improved by iteration processing. Therefore, the amount of information for processing is minimized and efficiency of data access/transmission is improved.

The invention discloses a sleeper positioning and counting method using linear array image binarized area projection, and belongs to the technical field of track inspection, comprising: taking imagesof the track surface by a linear array scanning imaging system, selecting the detection area containing only the sleepers in the track image, binarizing the detection area, removing the interference area with smaller area in the binarized image to obtain binarized area images, projecting the binarized area images, binarizing the line projection curves, extracting the coordinates of the left and right sides of the square waves of the binarized line projection curves to realize the positioning for the sleepers, and calculating the number of sleepers according to the number of square waves of thebinarized line projection curves. The sleeper counting method provided by the invention has good anti-interference ability and robustness, may be used for mileage calculation based on sleeper counting, and provides mileage positioning information for the track inspection system.

A display control apparatus includes an image creating section creating a first image having a predetermined number of drawing areas each onto which a thumbnail image is drawn, and an erasing section erasing at least one drawing area from the first image in response to an instruction from a user to display the first image. The number of drawing areas erased is the same as a number that is determined by subtracting the number of thumbnail images to be drawn in the first image from the predetermined number of drawing areas of the first image. The apparatus also includes a drawing section drawing a thumbnail image in each of the unerased drawing areas remaining in the first image, and a display controlling section controlling display of the first image including the thumbnail image drawn in each drawing area.

A terminal device and a display method are provided. The terminal device includes a proximity sensor, a memory, a controller and a display screen. The proximity sensor is configured to sense a distance from a human eye to the display screen. The memory is configured to store contents to be displayed. The controller is configured to determine a target resolution for the contents to be displayed based on the distance sensed by the proximity sensor, adjust an original resolution of the contents to be displayed to the target resolution to generate target display contents having the target display resolution, and control the display screen to display the target display contents in full screen. The target resolution may be inversely proportional to the distance. Solutions provided conform to the viewing characteristics of the human eye, and so can improve the user experience, and reduce the power consumption of the display screen.

The invention discloses a linear array image sleeper positioning and counting method based on multi-region gray projection and belongs to the field of rail detection. The method comprises the steps that a linear array imaging system is utilized to perform linear array scanning imaging on a rail pavement along the advancing direction of a train or a detection platform, and a linear array image containing sleepers is acquired; multiple detection regions are set in a sleeper region of the linear array image, image gray value horizontal projection is performed in each detection region to obtain multiple horizontal projection curves; the horizontal projection curves are fused after being subjected to filtering and smoothing to obtain united projection curves; and then sleeper counting is performed according to the quantity of square waves in the united projection curves or the quantity of crests or troughs in first-order derivatives of the united projection curves. According to the method,after sleeper positioning and counting, high-precision mileage counting can be realized, precise position information is provided for a rail inspection system, and convenience is brought to accurate positioning of a rail inspection result and quick finding in later maintenance.

A remote monitoring device comprising an illuminating device, an image capturing device, a sensing device, and a loudspeaker is provided. When the sensing device senses a change in the surrounding environment, the illuminating device lights up, the image capturing device generates image signals, and the loudspeaker activates.

The invention discloses a mobile phone terminal VR scene interactive display method based on cloud rendering. VR scenes can be watched on a mobile phone in combination with VR mobile phone glasses. According to the method, a sensor of a mobile phone is used for measuring the rotation angle of the head of a viewer, and a measurement result is transmitted to a rendering cloud so as to adjust the forward observation direction and the upward direction of a left eye virtual camera and a right eye virtual camera, so that a VR scene is interactively viewed on the mobile phone. According to the method, a binocular inhibition theory principle is utilized, different image resolutions are used when left and right eye pictures are drawn, and the three-dimensional picture drawing time and the image network transmission data volume can be reduced. By using the method, the VR scene can be watched only through a mobile phone browser without installing other plug-ins or a single mobile phone APP.