we research a meticulous sparsity adaptive matching pursuit algorithm
and propose a new method for digital image retrieval on this basis.Firstly
the original signal of color and vein are formed from RGB color and gray level co-occurrence matrix by order of column prior.Then
these two signals are measured by the blocked compressive sensing method
and measurement vectors are obtained which representing the color and texture features.Secondly
we reconstruct the image by blocks using the MSAMP(Meticulous Sparsity Adaptive Matching Pursuit) algorithm
and calculate the difference and sparse value between the original blocked signals.Finally
we calculate the overall image similarity
and focus on estimating the sparseness of measurement difference.Because it does no need to recover the original signal precisely
so it can reduce the number of iteration and accelerate the retrieval speed.Simulation results show that the retrieval speed and retrieval precision about this image retrieval algorithm based on compressive sensing signal have higher performance.