E. Wachsmuth; M.W. Oram; D.I. Perrett, "Recognition of objects and their component parts: responses of single units in the temporal cortex of the macaque", Cereb. Cortex 4, 509-522, 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....is used to select a small number of local features and yields extremely efficient classifiers. Experiments are presented which show that the face detection performance is comparable to the state of the art face detection systems. 1. INTRODUCTION There is psychological [10] and physiological [19, 9] evidence for parts based representations in the brain. Some face detection algorithms also rely on such representations. However, the spatial shape of their local features is often subjectively defined instead of being learnt from the training data set. Yang et al. 20] describe a method for ....

E. Wachsmuth; M.W. Oram; D.I. Perrett, "Recognition of objects and their component parts: responses of single units in the temporal cortex of the macaque", Cereb. Cortex 4, 509-522, 1994.

....object detection systems is important for a wide variety of problems in computer vision, such as image classi cation, content based image retrieval, tracking and surveillance. One theory of biological vision explains object detection on the basis of decomposition of objects into constituent parts [5, 7, 11]. According to this theory, the representation we use for detecting an object consists of the parts that compose the object, together with structural relations over these parts that de ne the global geometry of the object. In this paper, we describe a part based approach for developing a system ....

E. Wachsmuth, M. W. Oram, and D. I. Perrett. Recognition of objects and their component parts: responses of single units in the temporal cortex of the macaque. Cerebral Cortex, 4:509-522, 1994.

....(Logothetis et al. 1995) The tuning, an example of which is shown in Figure 3, was presumably acquired as an effect of the training to views of the particular object. Thus an object can be thought as represented by a set of cells tuned to several of its views, consistently with finding of others (Wachsmuth et al. 1994). This simple model can be extended to deal with symmetric objects (Poggio and Vetter, 1992) as well as objects which are members of a nice class (Vetter et al. 1995) in both cases generalization from a single view may be significantly greater than for objects such as the paperclips used in the ....

Wachsmuth, E., Oram, M., and Perrett, D. (1994). Recognition of objects and their component parts: Responses of single units in the temporal cortex of the macaque. Cerebral Cortex, 4(5):509--522.

.... each broadly tuned to one view of the head, e.g. full face or profile (Perrett, 1985) Similarly, neurons have been reported that respond selectively to static or dynamic information about the body, or body parts, some of which were dependent on the observer s vantage point (Perrett et al. 1989; Wachsmuth et al. 1994). Is such a configurational selectivity specific only for faces or body parts, or can it be generated for any novel object as a result of extensive training Clinical observations have shown that the recognition of living things can be selectively impaired (Farah et al. 1991) This may imply that ....

Wachsmuth, E., Oram, M., & Perrett, D. (1994). Recognition of Objects and Their Component Parts: Responses of Single Units in the Temporal Cortex of Macaque. Cereb Cortex, 5, 509--522.

....give insight for better algorithms to be used in the development of efficient artificial recognition systems. Previous Work: Many laboratories have being studying in detail the activity of single neurons in different subregions of IT cortex in response to various stimuli like faces or body parts [8], line drawings of common objects [4] and abstract figures [2, 3] The focus of these studies has been on the characterization of the single cell activity. To our knowledge only one attempt has been done to try to characterize the overall population code. Young and Yamane [9] bring forward the ....

E. Wachsmuth, M.W. Oram, and D.I. Perrett. Recognition of objects and their component parts: Responses of single units in the temporal cortex of the macaque. Cerebral Cortex, 4(5):509--522, 1994.

.... respond to a specific stimulus largely independent of its size and position in the visual field (Schwartz et al. 1983; Tovee et al. 1994; Ito et al. 1995; Logothetis et al. 1995) while in many cases these cells are highly selective to only one orientation of this stimulus (Perrett et al. 1985; Wachsmuth et al. 1994; Logothetis et al. 1995; Wang et al. 1996) Our experiments, however, demonstrate that discrimination performance does suffer from object translation when distinguishing among objects that differ in their structure rather than in their local features. This finding, along with the earlier results ....

E. Wachsmuth, M.W. Oram, and D.I. Perrett (1994) Recognition of Objects and Their Component Parts: Responses of Single Units in the Temporal Cortex of the Macaque. Cerebral Cortex 5:509-522.

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