The tracking process uses a 2D merge task to combine neighbouring blobs, in order to generate hypotheses of new objects entering the scene, and to group visual evidence associated to a mobile being tracked.
According to the best possible associations for previously tracked objects or testing a initial configuration for a new object, the tracking method sends a merged set of blobs to the 3D classification algorithm, in order to obtain the most likely 3D description of this blobs configuration, considering the expected objects in the scene.
Whenever a face is detected, the face normalization is carried out as follows: the system, at first, fits an ellipse to the face blob (exploiting facial features color models) in order to rotate it to a vertical position and hence a Viola-Jones-based eye detector searches the eyes.
Following [ 40], two constraints are used to reduce the set of edges in G i : the l ocality constraint, requiring that two blobs be sufficiently close to each other in order to be considered as neighbors and the p arent structure constraint requiring that a blob not merge and split simultaneously.
In order to classify the blobs, we developed two novel features based on the assumption that the neighborhood of a removed object is fairly continuous.
Since chroma noise affects predominantly the low frequencies, it has been generated with Photoshop Gaussian noise tool and performing a low-pass filtering in order to spread the blobs.
The moving stimuli were Gaussian blobs of 0.99 Weber contrast whose standard deviation was varied in order to produce stimuli of different size.
First, in order to establish an initial limit for the possible blob bounds, the largest maximum dimensions of expected objects are considered at the blob position, and those who exceed the dimensions of the analysed blob are enlarged.
In order to downgrade, you will need to have a blob created while running the version you want to downgrade to.
A Boy and His Blob is a platform-puzzle game that puts the player in control of the boy; its gameplay revolves around feeding his blob companion different flavored jelly beans to change its shape into various tools in order to overcome obstacles and traverse the game's world.
