Photo by Possessed Photography on Unsplash

Setting the stage

Before dwelling into “orthonormal”, we must first understand what “orthogonal” means.

In simple terms, two vectors x and y are said to be “orthogonal” if they make an angle of 90 degrees with each other.

Well, that’s really simple! The vectors x and y are orthogonal if their dot product is equal to 0.

Consider two vectors of length n

Photo by Will Porada on Unsplash

Traffic Sign Recognition (TSR) is undoubtedly one of the most important problems in the field of driverless cars and advanced driver assistance systems (ADAS). TSR enables the front-facing smart cameras mounted on the car to recognize the signboards so that the car can act accordingly. Some examples include recognizing stop signs, speed limit, turn signs etc.

More formally, TSR is expected to perform two tasks:
1. Traffic Sign Detection: Detect all the signs from a given video frame
2. Traffic Sign Recognition: Recognize all the detected signs

The focus of this blogpost is to introduce the second step alone i.e…

Suraj Krishnamurthy

Trained in computer vision. Excited in any problem that can be solved using data from camera.

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