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Sensory testing device and sensory testing method

An inspection device and sensory technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of inspection automation using pattern recognition that cannot be completely solved

Active Publication Date: 2011-07-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, even in the existing structure described above, the problem of automation of inspection using pattern recognition cannot be completely solved

Method used

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  • Sensory testing device and sensory testing method
  • Sensory testing device and sensory testing method
  • Sensory testing device and sensory testing method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0047] First, use Figure 1 to Figure 11 , the sensory inspection device and the sensory inspection method in Embodiment 1 will be described.

[0048] figure 1 (a) is a block diagram showing a pseudo sample generation system of the sensory inspection device in Embodiment 1 of the present invention. figure 1 (b) is a block diagram showing the pattern recognition learning device of the sensory inspection device in Embodiment 1 of the present invention. In Embodiment 1, the pseudo-sample generating system is a pseudo-sample generating device.

[0049] exist figure 1 In (a), data such as images and sounds of good products stored in advance are read by the good product data input unit 1, and the extracted feature values ​​are input through the feature value extraction unit 2 that performs filtering processing and feature value extraction. to the feature quantity space generation unit 3 . The feature quantity space generation unit 3 performs normalization and coordinate tran...

Embodiment approach 2

[0122] Next, use Figure 12 , the different features of the sensory inspection device and the sensory inspection method in Embodiment 2 from Embodiment 1 will be described.

[0123] Figure 12 It is a figure which shows the feature quantity space of Embodiment 2 of this invention. exist Figure 12 in, right with Figure 5 The same reference numerals are used for the same structural elements, and explanations are omitted.

[0124] Figure 12 (a) is the characteristic quantity of the initial sample. When selecting the initial sample, in Embodiment 1, the initial sample whose distance from the origin is a is selected, and the direction is random, but in this embodiment 2, the distance from the origin is a, and the direction is random. intervals become equally spaced initial samples.

[0125] exist Figure 12 In (b), the determination result of the initial sample is shown.

[0126] Figure 12 (c) is a diagram showing a method of generating feature values ​​by the pseudo ...

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Abstract

The present invention provides a sensory testing device and a sensory testing method. As the initial sample which is distributed in a Mahalanobis distance from an original point of a characteristic quantity space is used, a boundary line which becomes a determination reference for determining whether the sample is qualified is studied thereby studying with the initial sample next to a boundary. Therefore a most appropriate determination reference for determining whether the initial sample is qualified can be determined with little sample for studying. Additionally, as weighting is added for the doubtful sample which is misdetermined when the doubtful sample is used for studying, determination for the mis-determined doubtful sample can be performed in a mechanical determination steps without newly adding the doubtful sample. Therefore, the most appropriate determination reference can be determined with less sample for studying.

Description

technical field [0001] The present invention relates to a sensory inspection device and a sensory inspection method for automatically inspecting visual inspections of displays, abnormal noise inspections of various machines, and the like. Background technique [0002] In recent years, the manufacturing process of various industrial products has become increasingly automated, and the inspection process is no exception. On the other hand, however, inspections that require sensory judgments such as unevenness of displays and abnormal noise of mechanical parts still rely on subjective inspections such as visual inspection and hearing by the operator. However, there are the following problems in the operator's subjective inspection. First, long sensory inspections impose a burden on the operator. In addition, there is a large variation in examination results depending on individual differences, physical conditions, time periods, and the like. In addition, correct inspection re...

Claims

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Application Information

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IPC IPC(8): G06K9/62
Inventor 大森丰武智洋平浦岛毅吏
Owner PANASONIC CORP