Timo Ojala: List of Publications (updated September 2006)

Articles in international scientific journals with referee practice

1.       Harwood D, Ojala T, Pietikäinen M, Kelman S & Davis LS (1995) Texture classification by center-symmetric auto-correlation, using Kullback discrimination of distributions. Pattern Recognition Letters 16:1-10.

2.       Ojala T, Pietikäinen M & Harwood D (1996) A comparative study of texture measures with classification based on feature distributions. Pattern Recognition 29:51-59.

3.       Ojala T, Pietikäinen M & Nisula J (1996) Determining composition of grain mixtures by texture classification based on feature distributions. International Journal of Pattern Recognition and Artificial Intelligence 10:73-82.

4.       Ojala T & Pietikäinen M (1999) Unsupervised texture segmentation using feature distributions. Pattern Recognition 32:477-486.

5.       Pietikäinen M & Ojala T (2000) Rotation-invariant texture classification using feature distributions. Pattern Recognition 33:43-52.

6.       Ojala T, Valkealahti K, Oja E & Pietikäinen M (2001) Texture discrimination with multidimen­sional distributions of signed gray level differences. Pattern Recognition 34:727-739.

7.      Hyvönen MT, Hiltunen Y, El-Deredy W, Ojala T, Vaara J, Kovanen PT & Ala-Korpela M (2001) Application of Self-Organising Maps in conformational analysis of lipids. Journal of American Chemical Society 123:810-816.

8.       Rautiainen M, Ojala T & Kauniskangas H (2001) Detecting perceptual color changes from sequential images for scene surveillance. IEICE Transactions on Information and Systems, E84-D:1676-1683.

9.       Ojala T, Pietikäinen M & Mäenpää T (2002) Multiresolution gray scale and rotation invariant texture classification with Local Binary Patterns. IEEE Transactions on Pattern Analysis and Machine Intelligence 24:971-987.

10.   Korhonen J, Ojala T, Ristola A, Kesti M, Kilpelänaho V, Koskinen M & Viippola E (2006) Mobile Fair Diary - Hybrid interface for taking, browsing and sharing context-aware notes. Personal and Ubiquitous Computing, to appear.

Book chapters and edited works

11.   Ojala T, Pietikäinen M & Nisula J (1996) Determining composition of grain mixtures by texture classification based on feature distributions. In: Pietikäinen M & Pau L-F (eds.) Machine Vision for Advanced Production. Series in Machine Perception and Artificial Intelligence Vol. 22, World Scientific, Singapore, 73-82.

12.   Pietikäinen M & Ojala T (1996) Texture analysis in industrial applications. In: Sanz JLC (ed.) Image Technology - Advances in Image Processing, Multimedia and Machine Vision, Springer-Verlag, 337-359.

13.   Pietikäinen M, Ojala T & Silven O (1999) Approaches to texture-based classification, segmentation and surface inspection. In: Chen CH, Pau LF & Wang PSP (eds.) Handbook of Pattern Recognition & Computer Vision, 2nd ed., World Scientific, Singapore, 711-736.

14.   Pietikäinen M & Ojala T (2000) Nonparametric texture analysis with complementary spatial operators. In: Pietikäinen M (ed.) Texture Analysis in Machine Vision. Series in Machine Perception and Artificial Intelligence Vol. 40, World Scientific, Singapore, 3-18.

15.   Soriano M, Ojala T & Pietikäinen M (2000) Robustness of Local Binary Pattern (LBP) operators to tilt-compensated textures. In: Pietikäinen M (ed.) Texture Analysis in Machine Vision. Series in Machine Perception and Artificial Intelligence Vol. 40, World Scientific, Singapore, 89-99.

16.   Ojala T (editor) (2001) Proceedings of Infotech Oulu International Workshop on Information Retrieval (IR 2001), ISBN 951-42-6489-4, Oulu University Press, Oulu, Finland, 190 p.

17.   Ojala T & Ollila M (editors) (2002) Proceedings of 1st International Conference on Mobile and Ubiquitous Multimedia (MUM 2002), ISBN 951-42-6909-8, Oulu University Press, Oulu, Finland, 112 p.

Articles in international compilation works and in international scientific conference proceedings with referee practice

18.   Ojala T, Pietikäinen M & Silven O (1992) Edge-based texture measures for surface inspection. Proc. 11th International Conference on Pattern Recognition, The Hague, The Netherlands, 2:594-598.

19.   Ojala T, Pietikäinen M & Silven O (1992) Textured surface inspection using edge-based measures. Proc. 2nd Nordic Workshop on Industrial Machine Vision, Kuusamo, Finland, 10 p.

20.   Pietikäinen M, Ojala T & Harwood D (1993) Automated visual inspection of textured surfaces. Proc. 12th IFAC World Congress, Sydney, Australia, 10:217-222 (invited).

21.   Nisula J, Ojala T & Pietikäinen M (1994) Determining composition of grain mixtures by texture classification based on feature distributions. Proc. of Step-94 Multiple Paradigms for Artificial Intelligence, Turku, Finland, 161-166.

22.   Ojala T, Pietikäinen M & Harwood D (1994) Performance evaluation of texture measures with classification based on Kullback discrimination of distributions. Proc. 12th International Conference on Pattern Recognition, Jerusalem, Israel, 1:582-585.

23.   Pietikäinen M, Ojala T & Nisula J (1994) Recent developments in texture classification. Proc. 3rd International Conference on Fuzzy Logic, Neural Nets and Soft Computing, Iizuka, Japan, 141-142 (invited).

24.   Pietikäinen M, Ojala T, Nisula J & Heikkinen J (1994) Experiments with two industrial problems using texture classification based on feature distributions. SPIE Vol. 2354, Intelligent Robots and Computer Vision XIII: 3D Vision, Product Inspection and Active Vision, Boston, MA, 197-204.

25.   Pietikäinen M, Nieminen S, Marszalec E & Ojala T (1996) Accurate color discrimination with classification based on feature distributions. Proc. 13th International Conference on Pattern Recognition, Vienna, Austria, 3:833-838.

26.   Ojala T & Pietikäinen M (1997) Unsupervised texture segmentation using feature distributions. Proc. 9th International Conference on Image Analysis and Processing, Florence, Italy, 1:311-318.

27.   Pietikäinen M, Xu Z & Ojala T (1997) Rotation-invariant texture classification using feature distributions. Proc. 10th Scandinavian Conference on Image Analysis, Lappeenranta, Finland, 1:103-110.

28.   Rautio H, Silven O & Ojala T (1997) Grain size measurement using distribution classification. Proc. 10th Scandinavian Conference on Image Analysis, Lappeenranta, Finland, 1:353-358.

29.   Xu Z, Pietikäinen M & Ojala T (1997) Defect classification by texture in steel surface inspection. Proc. International Conference on Quality Control by Artificial Vision, Le Creusot, Burgundy, France, 179-184.

30.   Ojala T & Pietikäinen M (1998) Nonparametric multichannel texture description with simple spatial operators. Proc. 14th International Conference on Pattern Recognition, Brisbane, Australia, 1052-1056.

31.   Kaukonen S, Sauvola J & Ojala T (1999) Agent-based conferencing using mobile IP-telephony. Proc. 3rd IEEE Workshop on Multimedia Signal Processing, Copenhagen, Denmark, 593-598.

32.   Ojala T, Pietikäinen M & Kyllönen J (1999) Gray level cooccurrence histograms via learning vector quantization. Proc. 11th Scandinavian Conference on Image Analysis, Kangerlussuaq, Greenland, 103-108.

33.   Pietikäinen M & Ojala T (1999) Nonparametric texture analysis with simple spatial operators. Proc. 5th International Conference on Quality Control by Artificial Vision, Trois Rivieres, Canada, 11-16 (invited).

34.   Pietikäinen M & Ojala T (1999) Nonparametric texture analysis with complementary spatial operators. Proc. Workshop on Texture Analysis in Machine Vision, Oulu, Finland, 3-12.

35.   Soriano M, Ojala T & Pietikäinen M (1999) Robustness of Local Binary Pattern (LBP) operators to tilt-compensated textures. Proc. Workshop on Texture Analysis in Machine Vision, Oulu, Finland, 81-88.

36.   Ojala T, Valkealahti K, Oja E & Pietikäinen M (2000) Texture discrimination with multidimensional distributions of signed gray level differences. Proc. 4th Asian Conference on Computer Vision, Taipei, Taiwan, 2:1082-1088.

37.   Ojala T, Pietikäinen M & Mäenpää T (2000) Gray scale and rotation invariant texture classification with Local Binary Patterns. Proc. Sixth European Conference on Computer Vision, Dublin, Ireland, 1:404-420.

38.   Mäenpää T, Pietikäinen M & Ojala T (2000) Texture classification by multi-predicate Local Binary Pattern operators. Proc. 15th International Conference on Pattern Recognition, Barcelona, Spain, 3:947-950.

39.   Mäenpää T, Ojala T, Pietikäinen M & Soriano M (2000) Robust texture classification by subsets of Local Binary Patterns. Proc. 15th International Conference on Pattern Recognition, Barcelona, Spain, 3:951-954.

40.   Rautiainen M, Ojala T & Kauniskangas H (2000) Detecting perceptual color changes from sequential images for scene surveillance. Proc. IAPR Workshop on Machine Vision Applications, Tokyo, Japan, 136-140.

41.   Ojala T, Rautiainen M, Matinmikko E & Aittola M (2001) Semantic image retrieval with HSV correlograms. Proc. 12th Scandinavian Conference on Image Analysis, Bergen, Norway, 621-627.

42.   Ojala T, Kauniskangas H, Keränen H, Matinmikko E, Aittola M, Hagelberg K, Rautiainen M & Häkkinen M (2001) CMRS: Architecture for content-based multimedia retrieval. Proc. Infotech Oulu International Workshop on Information Retrieval, Oulu, Finland, 179-190.

43.   Ojala T, Pietikäinen M & Mäenpää T (2001) A generalized Local Binary Pattern operator for multiresolution gray scale and rotation invariant texture classification. Proc. Second International Conference on Advances in Pattern Recognition, Rio de Janeiro, Brazil, 397-406.

44.   Ojala T, Mäenpää T, Viertola J, Kyllönen J & Pietikäinen M (2002) Empirical evaluation of MPEG-7 texture descriptors with a large-scale experiment. Proc. 2nd International Workshop on Texture Analysis and Synthesis, Copenhagen, Denmark, 99-102.

45.   Ojala T, Aittola M & Matinmikko E (2002) Empirical evaluation of MPEG-7 XM color descriptors in content-based retrieval of semantic image categories. Proc. 16th International Conference on Pattern Recognition, Quebec, Canada, 2:1021-1024.

46.   Ojala T, Mäenpää T, Pietikäinen M, Viertola J, Kyllönen J & Huovinen S (2002) Outex - A new framework for empirical evaluation of texture analysis algorithms. Proc. 16th International Conference on Pattern Recognition, Quebec, Canada, 1:701-706. http://www.outex.oulu.fi.

47.   Rautiainen M & Ojala T (2002) Color correlograms in image and video retrieval. Proc. 10th Finnish Artificial Intelligence Conference, Oulu, Finland, 203-212.

48.   Aittola M, Ryhänen T & Ojala T (2003) SmartLibrary - Location-aware mobile library service. Proc. Fifth International Symposium on Human Computer Interaction with Mobile Devices and Services, Udine, Italy, 411-416.

49.   Ojala T, Korhonen J, Aittola M, Ollila M, Koivumäki T, Tähtinen J & Karjaluoto H (2003) SmartRotuaari - Context-aware mobile multimedia services. Proc. 2nd International Conference on Mobile and Ubiquitous Multimedia, Norrköping, Sweden, 9-18.

50.   Peltonen J, Ollila M & Ojala T (2003) TimeMachine Oulu - Dynamic creation of cultural-spatio-temporal models as a mobile service. Proc. Fifth International Symposium on Human Computer Interaction with Mobile Devices and Services, Udine, Italy, 342-346.

51.   Rautiainen M, Ojala T & Seppänen T (2003) Cluster-temporal video browsing with semantic filtering. Proc. Advanced Concepts for Intelligent Vision Systems, Ghent, Belgium, 116-123.

52.   Aalto L, Göthlin N, Korhonen J & Ojala T (2004) Bluetooth and WAP Push based location-aware mobile advertising system. Proc. Second International Conference on Mobile Systems, Applications and Services, Boston, MA, 49-58.

53.   Aittola M, Parhi P, Vieruaho M & Ojala T (2004) Comparison of mobile and fixed use of SmartLibrary. Proc. 6th International Conference on Human Computer Interaction with Mobile Devices and Services, Glasgow, Scotland, 383-387.

54.   Lukkari J, Korhonen J & Ojala T (2004) SmartRestaurant – Mobile payments in context-aware environment. Proc. Sixth International Conference on Electronic Commerce, Delft, The Netherlands.

55.   Ojala T, Korhonen J, Sutinen T, Parhi P & Aalto L (2004) Mobile Kärpät – A case study in wireless personal area networking. Proc. Third International Conference on Mobile and Ubiquitous Multimedia, College Park, MD, 149-156.

56.   Ojala T, Koskela M, Matinmikko E, Rautiainen M, Laaksonen J & Oja E (2004) Task-based user evaluation of content-based image database browsing systems. Proc. 3rd International Conference on Image and Video Retrieval, Dublin, Ireland, 234-243.

57.   Rautiainen M, Ojala T & Seppänen T (2004) Cluster-temporal browsing of large news video databases. Proc. 2004 IEEE International Conference on Multimedia and Expo, Taipei, Taiwan, 2:751-754.

58.   Rautiainen M, Ojala T & Seppänen T (2004) Analysing the performance of visual, concept and text features in content-based video retrieval. Proc. 6th ACM SIGMM International Workshop on Multimedia Information Retrieval, New York, NY, 197-205.

59.   Ojala T, Hakanen T, Mäkinen T & Rivinoja V (2005) Usage analysis of a large public wireless LAN. Proc. 2005 International Conference on Wireless Networks, Communications and Mobile Computing, Maui, HI, 1:661-667.

60.   Rautiainen M, Ojala T, Seppänen T (2005) Content-based browsing in large news video databases. Proc. 5th IASTED International Conference on Visualization, Imaging and Image Processing, Benidorm, Spain.

61.   Scheible J & Ojala T (2005) Mobile group interaction with interactive video on large public display.
Proc. ACM SIGGRAPH2005, Los Angeles, CA.

62.   Scheible J & Ojala T (2005) MobiLenin - Combining a multi-track music video, personal mobile phones and a public display into multi-user interactive entertainment. Proc. ACM Multimedia 2005, Singapore, 199-208. (Best Arts Paper Award)

63.   Sutinen T & Ojala T (2005) Case study in assessing subjective QoS of a mobile multimedia web service in a real multi-access network. Proc. Thirteenth International Workshop on Quality of Service, Passau, Germany, 298-312.

64.   Korhonen J, Ojala T, Klemola M & Väänänen P (2006) mTag – Architecture for discovering location specific mobile web services using RFID and its evaluation with two case studies. Proc. International Conference on Internet and Web Applications and Services, Guadeloupe.

65.   Kukka H & Ojala T (2006) Digital Oulu cultural database. Proc. Digital Cultural Heritage Conference, Vienna, Austria.

66.   Kukka H & Ojala T (2006) mobileDOK: Culture in your pocket. 3rd IEE Mobility Conference 2006, Bangkok, Thailand, to appear.

67.   Liu J, Rautiainen M & Ojala T (2006) Sensitivity evaluation of SNoW and SVM based face detection methods. Proc. 12th International MultiMedia Modelling Conference, Beijing, China.

68.   Rautiainen M, Seppänen T & Ojala T (2006) Advancing content-based retrieval effectiveness with cluster-temporal browsing in multilingual video databases. Proc. 2006 IEEE International Conference on Multimedia & Expo, Toronto, Canada, 377-380.

69.   Rautiainen M, Seppänen T & Ojala T (2006) On the significance of cluster-temporal browsing for generic video retrieval - a statistical analysis. ACM Multimedia 2006, Santa Barbara, CA, to appear.

Scientific Monographs

70.   Ojala T (1992) Tekstuurianalyysimenetelmien kehittäminen visuaaliseen laaduntarkastukseen. M.Sc. thesis, Department of Electrical Engineering, University of Oulu, Finland (in Finnish).

71.   Ojala T (1997) Nonparametric texture analysis using spatial operators, with applications in visual inspection. Dissertation, Acta Univ Oul C 105, 75 p + App.

Other scientific publications

72.   Harwood D, Ojala T, Pietikäinen M, Kelman S & Davis LS (1993) Texture classification by center-symmetric auto-correlation, using Kullback discrimination of distributions. Technical Report CAR-TR-678, Center for Automation Research, University of Maryland, 13 p.

73.   Pietikäinen M, Ojala T & Nisula J (1994) Texture classification based on feature distributions: A case study. Proc. Workshop on Machine Vision for Advanced Production, Oulu, Finland, 7 p.

74.   Ojala T & Pietikäinen M (1996) Unsupervised texture segmentation using feature distributions. Technical Report CAR-TR-837, Center for Automation Research, University of Maryland, 26 p.

75.   Ojala T (1996) Multichannel approach to texture description with feature distributions. Technical Report CAR-TR-846, Center for Automation Research, University of Maryland, 22 p.

76.   Ojala T & Pietikäinen M (2001) Texture classification. In: Fisher RB (ed.) CVonline - Compendium of Computer Vision. http://www.dai.ed.ac.uk/CVonline.

77.   Rautiainen M, Penttilä J, Vorobiev D, Noponen K, Väyrynen P, Hosio M, Matinmikko E, Mäkelä SM, Peltola J, Ojala T & Seppänen T (2002) TREC 2002 Video Track experiments at MediaTeam Oulu and VTT.  Proc. Text Retrieval Conference TREC 2002 Video Track, Gaithersburg, MD.

78.   Rautiainen M, Penttilä J, Pietarila P, Noponen K, Hosio M, Koskela T, Mäkelä SM, Peltola J, Liu J, Ojala T & Seppänen T (2003) TRECVID 2003 Experiments at MediaTeam Oulu and VTT. Proc. TRECVID Workshop at Text Retrieval Conference TREC 2003, Gaithersburg, MD.

79.   Rautiainen M, Hosio M, Hanski I, Varanka M, Kortelainen J, Ojala T & Seppänen T (2004) TRECVID 2004 experiments at MediaTeam Oulu. Proc. TRECVID Workshop at Text Retrieval Conference TREC 2004, Gaithersburg, MD.