Boots – shoes – and leggings
Patent
1987-04-03
1989-05-09
Harkcom, Gary V.
Boots, shoes, and leggings
364518, 340721, 340723, 340747, 382 48, 382 56, 382 46, G06F 1566
Patent
active
048294543
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Technical Field
This invention relates to an apparatus for processing a picture displayed on a display device such as a CRT display. More particularly, the invention relates to a picture processing apparatus so adapted that picture processing for feature recognition of an object in the picture can be limited by a window pattern.
2. Background Art
The state of an operation performed by an industrial robot or the like can be photographed by a video camera and displayed on a display device. In a conventional picture processing apparatus, the picture from the video camera is stored in a buffer memory such as a frame memory having a storage area corresponding to the display frame, and discrimination of the position of an object contained in the picture data and recognition of the shape of the object are realized by executing predetermined picture processing with regard to all information in the frame memory.
With the conventional picture processing apparatus of this type, there are cases where the desired results can be obtained without performing processing with regard to all picture data in the frame memory. However, in a case where picture processing is executed by a picture processor for picture data stored in a frame memory, picture processing based on all data in the designated frame memory is unavoidable since the processor does not have an area limiting function. Consequently, complicated data processing such as filtering processing is accompanied by an increase in working memory capacity or prolonged processing time, thus making efficient picture processing impossible.
SUMMARY OF THE INVENTION
The present invention has been devised in order to solve the aforementioned problem and its object is to provide a picture processing apparatus in which the validity or invalidity of processing is designated for every pixel of picture information by using a window memory having a size corresponding to a frame memory, whereby highly efficient picture processing can be realized.
According to the present invention, there is provided a picture processing apparatus for displaying on a display device a picture obtained from a sensor, the apparatus including a processor for performing picture processing, a frame memory for storing a picture to be processed, a window memory of a size corresponding to the frame memory for storing a bit pattern for designating the validity or invalidity of processing performed by the processor, and a control circuit for writing picture data into the frame memory, for reading out of the frame memory picture data of a bit pattern indicative of validity, and for displaying the picture data on the display device.
In the picture processing apparatus according to the present invention constructed as set forth above, a bit pattern specifying the validity or invalidity of processing performed by the processor is stored in the window memory in a size corresponding to the frame memory, so that picture processing can be executed while reference is made to the effective bits. Accordingly, processing speed can be raised and a memory of large capacity is unnecessary even for complicated data processing such as filtering processing. This makes it possible to perform highly efficient picture processing.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of an embodiment of a picture processing apparatus according to the present invention; and
FIG. 2 is a block diagram of one example of the CRT controller 6 used in the picture processing apparatus of FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
An embodiment of the invention will now be described with reference to the drawings.
FIG. 1 is a block diagram of a picture processing apparatus according to the invention, and FIG. 2 is a block diagram for describing an example of the internal construction of a CRT controller used in the picture processing apparatus of the invention.
In FIG. 1, numeral 1 denotes a processor for performing picture processing. The processor is connected to a frame memory 2, a plura
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patent: 4589139 (1986-05-01), Hada et al.
patent: 4651341 (1987-03-01), Nakashima et al.
patent: 4700224 (1987-10-01), Miyasaka et al.
patent: 4707647 (1987-11-01), Coldren et al.
Kurakake Mitsuo
Otsuka Shoichi
Fanuc Ltd
Harkcom Gary V.
Lacasse Randy W.
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