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Object realm information producing method and device, and approximate polygon producing method and device
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An object and domain technology, applied in the information generation of the object domain and the equipment domain, can solve the problem of increasing data volume and achieve the effect of easy processing
Inactive Publication Date: 2005-11-16
KK TOSHIBA
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However, in the case of expressing the time change of the object by polygonal approximation, although the movement of each vertex of the polygonal approximation is described, the amount of data increases to record the position of each vertex of each frame, so it is not suitable.
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Embodiment 1
[0047] figure 1 It is a diagram showing a configuration example of an object domain information generating device according to Embodiment 1 of the present invention. exist figure 1 Among them, the object domain information generation device includes an image data storage unit 100 , a polygon generation unit 101 , a vertex correspondence formation unit 102 , a function approximationprocessing unit 103 and an object domain information storage unit 104 .
[0048] The video data storage unit 100 is constituted by, for example, a hard disk, an optical disk, a semiconductor memory, etc. to store video data.
[0049] The polygon generation unit 101 generates a polygon representing the area of the object for each frame in which there is an object to be extracted from video (or image) data. In addition, the object is, for example, a specific person or animal in the image, other natural objects, or manufactured objects such as cars and buildings, structures, etc. )Image. Hereinaf...
Embodiment 2
[0152] Next, an object field information generating device according to Embodiment 2 of the present invention will be described.
[0153] This embodiment is basically the same as Embodiment 1, and the parts different from Embodiment 1 will be mainly described below.
[0154] In Embodiment 1, after obtaining the vertices of the approximate polygon from the object field in two adjacent frames, although the correspondence between the vertices of the approximate polygon of the two frames is obtained, in this embodiment, using the already obtained The locus of each corresponding vertex of the approximate polygon in the previous frame is obtained, and each corresponding vertex of the approximate polygon in the target frame is obtained, for example, from a stream image or the like to efficiently perform video input while processing.
[0155] The configuration examples and the figure 1 same.
[0156] In addition, an example of the processing flow of the object field information genera...
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Abstract
The present invention provided an object domain information generating device capable of performing polygonal approximation to the domain of a desired object in video precisely and speedily and describing the desired object in the video with a small data quantity. In an object domain information describing method for performing domain information, which generates information describing the domain of the optional matter in the video extending consecutive plural frames, a polygon generation part 101 generates an approximate polygon showing the domain of the objective object in the video, a vertex coordinating generation part 102 specifies the correspondence of the vertex in an adjacent frame at the vertex of the approximate polygon and a function approximating processing part 103 approximates the locus of the vertex in the case of arranging positional data on the vertex of the approximate polygon along the advance of a frame with a prescribed function to make information on the area of the object by using the parameter of the function.
Description
technical field [0001] The present invention relates to an object area information generating method and an object area information generating device for generating information representing the area of an object in a video or image, and an approximate polygon for generating an approximate polygon approximating the area of an arbitrary object in one frame of a video or image A generating method and an approximate polygon generating device. Background technique [0002] In recent years, due to the rapid development of video imageprocessing technology, video and images are generally processed into digital data. We have established a technique to efficiently compress the digitized data volume into large video and images. In addition, with the development of network technologies such as the Internet, satellitebroadcasting, and CATV, the use of images, image databases, and image connections obtained in comparison with a large number of image needs has entered the practical ...
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