空間周波数

Spatial frequency - characteristic of any structure that is periodic across position in space; measure of how often sinusoidal components (as determined by the Fourier transform) of the structure repeat per unit of distance. Article “空間周波数” in Japanese Wikipedia has 8.7 points for quality (as of July 1, 2026). The article contains 2 references and 3 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.46 points.

This article has the best quality in Serbo-Croatian Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “空間周波数”, its content was written by 5 registered users of Japanese Wikipedia and edited by 164 registered Wikipedia users in all languages.

The article is cited 19 times in Japanese Wikipedia and cited 340 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #82306 in May 2024
• Global: #97055 in December 2025

The highest popularity rank from 2008:

• Local (Japanese): #108126 in November 2010
• Global: #167359 in April 2015

There are 11 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Serbo-Croatian (sh) Prostorna učestanost		35.0942
2	English (en) Spatial frequency		34.2682
3	German (de) Ortsfrequenz		29.0229
4	Catalan (ca) Freqüència espacial		29.0148
5	French (fr) Fréquence spatiale		27.9628
6	Korean (ko) 공간 주파수		25.8485
7	Arabic (ar) تردد فراغي		21.6501
8	Chinese (zh) 空間頻率		18.9058
9	Thai (th) ความถี่เชิงพื้นที่		11.1183
10	Japanese (ja) 空間周波数		8.737

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "空間周波数" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Spatial frequency		1 047 075
2	Japanese (ja) 空間周波数		182 793
3	German (de) Ortsfrequenz		139 582
4	French (fr) Fréquence spatiale		94 794
5	Chinese (zh) 空間頻率		68 134
6	Persian (fa) بسامد فضایی		15 999
7	Arabic (ar) تردد فراغي		8 028
8	Thai (th) ความถี่เชิงพื้นที่		3 771
9	Catalan (ca) Freqüència espacial		1 145
10	Serbo-Croatian (sh) Prostorna učestanost		652

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "空間周波数" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Spatial frequency		1 659
2	Japanese (ja) 空間周波数		318
3	German (de) Ortsfrequenz		194
4	Chinese (zh) 空間頻率		140
5	French (fr) Fréquence spatiale		129
6	Korean (ko) 공간 주파수		35
7	Persian (fa) بسامد فضایی		28
8	Thai (th) ความถี่เชิงพื้นที่		10
9	Catalan (ca) Freqüència espacial		7
10	Serbo-Croatian (sh) Prostorna učestanost		1

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "空間周波数" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Spatial frequency		73
2	German (de) Ortsfrequenz		32
3	French (fr) Fréquence spatiale		26
4	Arabic (ar) تردد فراغي		8
5	Chinese (zh) 空間頻率		8
6	Japanese (ja) 空間周波数		5
7	Persian (fa) بسامد فضایی		3
8	Serbo-Croatian (sh) Prostorna učestanost		3
9	Thai (th) ความถี่เชิงพื้นที่		3
10	Catalan (ca) Freqüència espacial		2

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "空間周波数" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) تردد فراغي		1
2	Catalan (ca) Freqüència espacial		0
3	German (de) Ortsfrequenz		0
4	English (en) Spatial frequency		0
5	Persian (fa) بسامد فضایی		0
6	French (fr) Fréquence spatiale		0
7	Japanese (ja) 空間周波数		0
8	Korean (ko) 공간 주파수		0
9	Serbo-Croatian (sh) Prostorna učestanost		0
10	Thai (th) ความถี่เชิงพื้นที่		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "空間周波数" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Spatial frequency		165
2	German (de) Ortsfrequenz		44
3	French (fr) Fréquence spatiale		42
4	Japanese (ja) 空間周波数		19
5	Arabic (ar) تردد فراغي		17
6	Persian (fa) بسامد فضایی		16
7	Catalan (ca) Freqüència espacial		13
8	Chinese (zh) 空間頻率		11
9	Korean (ko) 공간 주파수		7
10	Thai (th) ความถี่เชิงพื้นที่		5

More...

#	Language	Value
ar	Arabic تردد فراغي
ca	Catalan Freqüència espacial
de	German Ortsfrequenz
en	English Spatial frequency
fa	Persian بسامد فضایی
fr	French Fréquence spatiale
ja	Japanese 空間周波数
ko	Korean 공간 주파수
sh	Serbo-Croatian Prostorna učestanost
th	Thai ความถี่เชิงพื้นที่
zh	Chinese 空間頻率

Best Rank

Japanese: #108126 11.2010

Global: #167359 04.2015

Best Rank

Japanese: #82306 05.2024

Global: #97055 12.2025

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information