Abstract: A hand-written character recognition apparatus can enhance recognition efficiency by decreasing erroneous recognition caused by habit of user's hand-writing stroke. In a hand-written character recognition apparatus in which user's strokes entered by some suitable means, such as light pen or tablet, are detected, then processed by a character recognition preprocessing, then processed by a recognizing processing for selecting nominated characters based on a standard evaluation point and further, processed by a post-recognizing processing and then supplied to an application device (electronic notebook, electronic dictionary, word processor, personal computer or the like).

Abstract: A method and apparatus for processing an input image by converting an input frame of a predetermined number of pixels into a plurality of output frames, the spatial frequency spectrum of each of said plurality of output frames being that of a respective predetermined frequency band of the spatial frequency spectrum of the input frame, the processing including filtering the input frame in one direction so as to produce a first output frame of said predetermined number of pixels, the first output frame having only one of the high spatial frequencies and the low spatial frequencies of said input frame in said one direction, and subtracting said first output frame from said input frame so as to produce a second output frame of said predetermined number of pixels, the second output frame having the other of the high spatial frequencies and the low spatial frequencies of said input signal in said one direction.

Abstract: An object recognition apparatus that can recognize an object in an image acquired by an on-vehicle camera mounted on a vehicle with high efficiency and accuracy. A recognition processing is carried out in a cut off range, which is cut off from the image, and in which an object to be recognized is supposed to be present. The cut off range is obtained using support information supplied from a position detection device and/or an anti-lock brake device of the vehicle. Since the object in the image changes its position as the vehicle moves, the displacement must be estimated during the object recognition. The estimation requires camera attitude parameters of the on-vehicle camera with respect to the road, and the estimation is performed using support information supplied from the position detection device and/of the anti-lock brake device. This will improve the efficiency and accuracy of obtaining the camera attitude parameters.