摘要:
An image data compressing apparatus comprises a color selecting unit, a data separating unit and a data compressing unit. The selecting unit selects an arbitrary color contained in an original map image. The separating unit separates the original image data into a modified color data and a selected position data. The compressing unit compresses these data separately from each other to improve data compression efficiency. The modified color data may be data in which a color of a background portion is made equal to a color of a road, and the background color may be a color which is most popularly used.
摘要:
A driver's gaze distribution is detected. Based on the detected distribution, an image corresponding to a driver's visual-field is extracted from images photographed by a front monitor camera and is accumulated. A first driver's gaze probability distribution necessary for steering operation is computed based on the accumulated images, and a second driver's gaze probability distribution that is expected is computed based on visual characteristics within the images. An ideal gaze probability distribution is obtained by adding up the first and the second probability distributions. Presence of a risk is determined when the difference between the driver's gaze and the ideal gaze probability distribution becomes a given threshold. A windshield display or a speaker outputs the determined result.
摘要:
A driver's gaze distribution is detected. Based on the detected distribution, an image corresponding to a driver's visual-field is extracted from images photographed by a front monitor camera and is accumulated. A first driver's gaze probability distribution necessary for steering operation is computed based on the accumulated images, and a second driver's gaze probability distribution that is expected is computed based on visual characteristics within the images. An ideal gaze probability distribution is obtained by adding up the first and the second probability distributions. Presence of a risk is determined when the difference between the driver's gaze and the ideal gaze probability distribution becomes a given threshold. A windshield display or a speaker outputs the determined result.
摘要:
An image processing apparatus draws an image, stores the drawn image in a memory, reads image data from the memory along a raster direction, and executes a processing operation required for a display with respect to the read image data to output the processed image data to a display device. A display processing unit executes a processing operation including a coordinate calculation with respect to the image data read out along the raster direction. As a result, the image can be formed at high speed even under transition state of displayed images.
摘要:
A lock release apparatus in a vehicle includes a vehicle unit and a portable device, for an exchange of the first and second reference signals transmitted therebetween from the portable device through human body of the driver toward the right and left hands of the driver onto the first and second interfaces. The signals received by the interfaces are used to set the first and second determination conditions. At a time of a shift lever operation, an interface on a shift lever is used to receive the first determination signal for determining the first determination condition, together with the second determination signal from the other interface for releasing the lock of the shift lever.
摘要:
A dynamic contour extracting means detects, using a dynamic contour extraction method generally known as SNAKE, a contour of a recognition object included on an image by the following steps: a curve with control points is disposed in an image; an internal energy Eint indicating smoothness of the curve, an image energy Eimage, and an external energy Eext are summed up; and the curve is modified so that the summed total energy becomes the minimum. Here, a template is stored for including disposition information of primary control points that are bound to be moved only in a vertical or horizontal direction based on a road shape. The dynamic contour extracting means moves the primary control points based on the template. The primary control points can be rapidly moved owing to their limited movement direction.
摘要:
A display panel having plural capacitive elements such as electroluminescent elements is driven by an integrated circuit connected between the display panel and a power source. A pair of power transistors such as MOSFETs is connected between the power source and the integrated circuit. The capacitive elements are selectively charged and discharged by operating switching elements in the integrated circuit. The pair of transistors disposed separately from the integrated circuit is turned on or off after the switching elements in the integrated circuit are closed, so that the switching loss only occurs in the transistors outside the integrated circuit, thereby suppressing temperature rise in the integrated circuit. A pair of resistors may be used in place of the transistors to divide a voltage supplied to the capacitive elements between the resistors and the integrated driver circuit. A step-recycle circuit including a condenser for recycling a part of energy stored in the capacitive elements may be further connected between the power source and the pair of transistors, to further reduce power consumption in the integrated circuit.
摘要:
All two-character chains including two general characters and all three-character chains including one special character between two general characters are detected from a registration character string in which a large number of special characters not having any meaning are frequently arranged, or all two-character chains including two general or symbolic characters are detected from a converted registration character string produced by changing each special character of the registration character string to one type of symbolic character determined in correspondence to one general character adjacent to the special character. Also, occurrence frequencies of the general or symbolic characters of each chain are counted and stored in a recording medium with the registration character chains. When a retrieval character chain is input, occurrence frequencies of particular character chains corresponding to all retrieval character chains detected from the retrieval character string in the same manner are read out from the recording medium and are collated with each other, and a particular character string agreeing with the retrieval character chain is retrieved from the registration character string. Because an occurrence frequency of any special character is not counted or the special characters are changed to various types of symbolic characters, a recording area required for the occurrence frequencies of the registration character chains can be reduced.
摘要:
When display data for both odd-numbered and even-numbered scan electrodes in an electroluminescent display are both actuating data, the brightness of electroluminescent elements connected to the odd-numbered electrode is adjusted by adjusting the timing for starting the application of the actuating voltage and the brightness of electroluminescent elements connected to the even-numbered electrode is adjusted by adjusting the timing for terminating the application of the actuating voltage. Moreover, electric charge in the EL elements is retained by maintaining the application of the actuating voltages during scanning operations.
摘要:
A dynamic contour extracting means detects, using a dynamic contour extraction method generally known as SNAKE, a contour of a recognition object included on an image by the following steps: a curve with control points is disposed in an image; an internal energy Eint indicating smoothness of the curve, an image energy Eimage, and an external energy Eext are summed up; and the curve is modified so that the summed total energy becomes the minimum. Here, a template is stored for including disposition information of primary control points that are bound to be moved only in a vertical or horizontal direction based on a road shape. The dynamic contour extracting means moves the primary control points based on the template. The primary control points can be rapidly moved owing to their limited movement direction.