The phrase "a certain pattern in" is correct and usable in written English.
It can be used when discussing a specific trend or arrangement observed within a particular context or subject matter.
Example: "The researchers identified a certain pattern in the data that suggested a correlation between the variables."
Alternatives: "a specific trend in" or "a distinct arrangement in".
Neural networks have shown good results for detecting a certain pattern in a given image.
Redness of the skin, sweating, changes in emotion and the stress level and a certain pattern in conversation.
Exhaustive search of a certain pattern in the entire image is too time-consuming for applications requiring real-time operation.
Ocean-ridge volcanoes in particular have been observed to follow a certain pattern in terms of eruptive activity, first observed with Hawaiian seamounts but now shown to be the process followed by all seamounts of the ocean-ridge type.
Over the last two decades, the filmmaker has condemned himself to a cycle of creative conflict he readily acknowledges follows a certain pattern, in the process alienating friends and creating powerful Hollywood enemies.
We found a certain pattern in their expression.
Doing things in a certain pattern or in an unmannerly way quickly will usually reveal the glitch.
Boats operated by non-playable civilians will move around the water in a certain pattern, usually in circles.
Like many top shirtmakers, H&H offers certain patterns in limited quantities; new ranges and designs are released every two years.
Occasionally the jet stream will stagnate into a particular pattern - in this case strong and straight - which leads to the weather maintaining a certain pattern - in this case stormy.
In an agriculture example, this is a class of algorithm you might use to make sense of some of the images that are being taken from UAVs or satellites: What is the information in these images, what do they actually represent, and is there a certain pattern present in those images that would lend themselves to there being a particular pest or disease present?
