H. Harashima, F. Kishino, "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592, June 1991.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....compute 3 D surface models from image sequences is presented. 3 D surface models are needed for a wide range of applications where computer generated 3 D environments are desirable, like in architecture visualization [7] virtual television studios [4] virtual presence for video communications [9] and general virtual reality applications. 3 D modeling from image sequences is a recent topic in computer vision research. Great effort went into developing algorithms that estimate 3 D object shape from various sources, termed shape from motion, stereo, and others [10] 2] On the other hand ....

H. Harashima, F. Kishino, "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592, June 1991.

....scenes from 2D image sequences has been a research topic for a long time as Aggarwal and Nandhakumar [1] showed in their overview of this field. The goal of such modelling is to extract a compact description of the scene for purposes of reconstruction [2] recognition [3] or data compression [4] [6]. When analyzing complex scenes with multiple moving flexible objects a complete description of all properties of the scene is necessary. In previous works the different 2 properties 3D object shape, 3D object motion, and object surface were treated separately. Great effort went into developing ....

H. Harashima, F. Kishino, "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592, June 1991.

....scenes from 2D image sequences has been a research topic for a long time as Aggarwal and Nandhakumar [2] showed in their overview of this field. The goal of such modeling is to extract a compact description of the scene for purposes of reconstruction [3] recognition [4] or data compression [5] [6]. When analyzing complex scenes with multiple moving flexible objects a complete description of all properties of the scene is necessary. In previous works the different properties 3 D object shape, 3 D object motion, and object surface texture were treated separately. Great effort went into ....

H. Harashima, F. Kishino, "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592, June 1991.

....the case with buildings and objects containing coherent surfaces. This object type is needed for a wide range of applications where computer generated 3 D environments are desirable, like in architecture visualization [1] virtual television studios [2] virtual presence for video communications [3] and general virtual reality applications. It is not intended to model arbitrary surface geometries like trees or semi transparent surfaces. Geometric and photometric models of the scene objects as well as object and camera motion are extracted from the image sequence. The geometry is measured ....

H. Harashima, F. Kishino, "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592, June 1991.

.... as Aggarwal and Nandhakumar showed in their overview of this field (Aggarwal and Nandhakumar, 1988) The goal of such modeling is to extract a compact description of the scene for purposes of reconstruction (Blake and Zissermann, 1987) recognition (Marr and Nishihara, 1978) or data compression (Harashima and Kishino, 1991). When analyzing complex scenes with multiple moving flexible objects a complete description of all properties of the scene is necessary. In previous works the different properties 3 D object shape, 3 D object motion, and object surface texture were treated separately. Great effort went into ....

Harashima, H., Kishino, F., 1991. "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592.

.... The recent advances in multimedia technology and virtual reality applications show that there is a wide range of applications where computer generated 3 D environments are desirable, like in architecture visualization [1] virtual television studios [2] virtual presence for video communications [3] and general virtual reality applications. In all these applications real objects have to be scanned and 3 D models must be generated automatically with low cost. There have been some developments towards systems that automatically compute such models in a controlled environment like 3D ....

H. Harashima, F. Kishino, "Intelligent Image Coding and Communications with Realistic Sensations -- Recent Trends,", IEICE Transactions, Vol. E 74 (6), pp. 1582--1592, June 1991.

....proposed method was applied to regenerate facial expressions on a synthesized character to show the method s effectiveness in obtaining facial motion information. 1 Introduction Facial expression recognition is a key technology for low bit rate coding and transmission of the facial motion images[1] to be standardized in MPEG4. An advanced man machine interface for human centered systems is also a promising application. Previous research on facial expression recognition dealt mainly with posed expressions[2, 3] i.e. a sequence of facial images starting from a neutral face and gradually ....

H. Harashima and F. Kishino, "Intelligent image coding and communications with realistic sensations -- recent trends--," IEICE Trans., vol. E74, no. 6, pp. 1582-1592, 1991.

....as the number of mixtures increases. In addition, the method correctly recognizes a facial expression that contiguously follows another one. 1 Introduction Facial expression recognition[1, 2, 3] is a key technology for developing an intelligent coding system to be used in visual communication[4] and an advanced man machine interface. Previously, stimulated by an earlier work of one of the authors[5] we proposed a method[6] that recognizes facial expressions from image sequences by using Hidden Markov Models (HMMs) That method showed good recognition results, but it was useful only for ....

H. Harashima and F. Kishino, "Intelligent image coding and communications with realistic sensations -- recent trends--," IEICE Trans., vol. E74, no. 6, pp. 1582-1592, 1991.

....major issues. A typical solution to the problem uses different coding techniques. One of such techniques is model based coding: image sequences are described by the states (position, scale, and orientation, for instance) of all physical objects in the scene (human participants in the case of VTC) [64, 65]. Only the updates of descriptors are sent while at the receiving end a computer generated model of physical objects is driven using the received data. Model based coding for VTC, therefore, requires that the human bodies be modeled appropriately. Depending on the amount of detail desired, this ....

H. Harashima and F. Kishino, "Intelligent image coding and communications with realistic sensations - recent trends," IEICE Transactions, vol. E 74, pp. 1582--1592, June 1991.

....facial variety, Dr. Harashima created a facial database, as well as a method of averaging the faces in the database to produce new faces. To close, he presented the average faces of 13 bank clerks, 11 professional wrestlers, and 10 political party faction leaders. For more details, see (Harashima Kishino, 1991). Dr. Stephen Ellis, NASA Ames Research Center Dr. Ellis addressed a great many issues. First he pointed out that VR is nothing new, that in fact, it is simply the extension of decades of flight simulation research, pioneered by Ed Link and Ivan Sutherland. Today s HMDs and other devices are just ....

....cluttered desktops. One problem still being solved was occlusion of a hand by another hand or simply by improper perspective. The work was being extended to allow simultaneous recognition of the shape of two hands. For a summary of the virtual environments work at Mr. Kishino s department, see (Harashima Kishino, 1991). For an account of previous visits to ATR, see Dr. Kahaner s reports (1992b, 1994) 4.4. Mr. Kotoku at MEL The Mechanical Engineering Laboratory (MEL) is one of the several national laboratories located in Tsukuba. Like most such institutions, MEL contains several departments and laboratories. ....

Harashima, H. & Kishino, F. (1991). Intelligent image coding and communications with realistic sensations -- recent trends. IEICE Transactions, E 74(6), 1582-1592.

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