W. James A saliency-based search mechanism for overt and covert shifts of visual attention. Principles of Psychology, 1890, New York: Holt.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....by shifting attention about an image, giving more attention to salient locations and less attention to unimportant regions. When attention is not focused onto items in a scene they can literally go unnoticed. Inattentional blindness is the failure of the human to see unattended items in a scene [4]. It is this inattentional blindness that we may exploit to help produce perceptually high quality images in reasonable times. 2 Realistic Rendering The concept of realistic image synthesis centers on generating scenes with an authentic visual appearance. The modeled scene should not only be ....

....The concept of realistic image synthesis centers on generating scenes with an authentic visual appearance. The modeled scene should not only be physically correct but also perceptually equivalent to the real scene it portrays [7] One of the most popular rendering techniques is ray tracing [4, 10, 14]. In this approach, one or more primary rays are traced, for each pixel of the image, into the scene. If a primary ray hits an object, the light intensity of that object is assigned to the corresponding pixel. Shadows, specular reflections and transparency can be simulated by spawning new rays ....

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James W. 1890 Principles of Psychology, New York: Holt.

....the next two sections we will show that there also exist di erences in the ontogenetic development of abilities based on geometrical and statistical regularities. 5 3 Evidence for a large Degree of Genetic Determination of Deterministic Regularities At the end of the 19 century William James [19] characterized the world of the newborn as a blooming, buzzing confusion . Imagine that there would not be any innate concept of depth, the idea that objects come into or leave existence when they appear or dissappear from the visual eld would be inescapable. However, there exists a good amount ....

W. James. The principles of psychology (Vol. 2). New York: Holt, 1890.

....theory of the executive controller. First, Brown (1958) and Peterson and Peterson (1959) showed that witholding information in STM is dependent on rehearsal, and rapidly lost if active rehearsal was prevented. This fact lies at the basis of the distinction between immediate STM and primary memory (James, 1890) which results from STM extension due to the rehearsal process. Second, responses of normal subjects to different recall or recognition tests, show in the absence of rehearsal, a residual memory which the STM decay tends to asymptotically. This residual memory is suppressed after bilateral Hs ....

.... (respectively cases PB and HF) ffl First, rehearsal is spontaneous, as with verbal material well within the memory span and made of consonant trigrams presented in a variable delay matching to sample task (Sidman et al. 1968) Then STM range can be extended theoretically at will in what William James (1890) has named a primary memory (Fig. 2d) even for patients with total loss of hippocampal function. ffl Second, the material is easily verbalizable but at the limit of the memory span as in the short version of the visual maze (Milner et al. 1968) This test requires the memorization of a sequence ....

James, W. (1890).The Principles of Psychology. New York: Holt. 44

.... the other hand, the more compact these representations, the more difficult it would be to make category distinctions (see [7] for a discussion of this problem) This would also lead to the category brittleness that occurs as people grow older, a phenomenon whose description dates at least to James [10], and results in a loss of the capability of assimilating impressions in any but old ways. 10] Finally, highly compact representations would presumably be more vulnerable to severe disruption than highly distributed representations. This, too, would seem to be consistent with selective memory ....

....distinctions (see [7] for a discussion of this problem) This would also lead to the category brittleness that occurs as people grow older, a phenomenon whose description dates at least to James [10] and results in a loss of the capability of assimilating impressions in any but old ways. [10] Finally, highly compact representations would presumably be more vulnerable to severe disruption than highly distributed representations. This, too, would seem to be consistent with selective memory loss with aging. The data used to test the network were obtained from measurements of the ....

James, W. (1890). Psychology, The Briefer course. New York: Holt.

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W. James A saliency-based search mechanism for overt and covert shifts of visual attention. Principles of Psychology, 1890, New York: Holt.

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W. James. The principles of psychology (Vol. 2). New York: Holt, 1890.

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Artin E. The Gamma Function. New York: Holt, Rinehart, and Winston (1964).

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D. King, The Commissar Vanishes. New York: Holt, 1997.

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