A method of on-line transmission of a high-resolution video sequence composed of a succession of T images, characterized in that it comprises at least one step of selecting relevant images comprising at least the following steps: Step 1: Split each image to be transmitted at the instant t into a number N of zones, Step 2: For each zone n determined in step 1, calculate a value v n ( t ) representative of the content of said zone, Step 3: For each image I ( t ) to be transmitted, generate a vector V N ( t ) of size N representative of the content of said image and containing the values obtained in step 2 for each of the zones determined in step 1, V N ( t ) = [ v 0 ( t ),..., v N -1 ( t )] T , [.] T being the transposition operator for a vector, Step 4: Calculate a normalized coefficient of correlation α between the reference vector R N ( k ) = V N ( t 1 ) = [ r 0 ( k ),···, r N -1 ( k )] T determined for an image previously selected at the instant t 1 I sel ( k - 1) = I ( t 1 ) and the vector V N ( t ) calculated for the current image I ( t ) via the following calculation: α = R N T k − 1 . V N t R N T k − 1 . R N k − 1 . V N T t . V N t , where k is the temporal index of a selected image, Step 5: Make a decision on the selection (or not) for transmission of the current image I ( t ) by comparing the value of the normalized correlation coefficient α with one or more thresholds having values fixed a priori, Step 6: Transmit an under-sampled sequence comprising only the selected images, for at least one selected image, ∘ search in a temporal neighborhood of the selected image for an image that is sharper than the selected image, ∘ retransmit the sharper image. Step 1: Split each image to be transmitted at the instant t into a number N of zones, Step 2: For each zone n determined in step 1, calculate a value v n ( t ) representative of the content of said zone, Step 3: For each image I ( t ) to be transmitted, generate a vector V N ( t ) of size N representative of the content of said image and containing the values obtained in step 2 for each of the zones determined in step 1, V N ( t ) = [ v 0 ( t ),..., v N -1 ( t )] T , [.] T being the transposition operator for a vector, Step 4: Calculate a normalized coefficient of correlation α between the reference vector R N ( k ) = V N ( t 1 ) = [ r 0 ( k ),···, r N -1 ( k )] T determined for an image previously selected at the instant t 1 I sel ( k - 1) = I ( t 1 ) and the vector V N ( t ) calculated for the current image I ( t ) via the following calculation: α = R N T k − 1 . V N t R N T k − 1 . R N k − 1 . V N T t . V N t , where k is the temporal index of a selected image, Step 5: Make a decision on the selection (or not) for transmission of the current image I ( t ) by comparing the value of the normalized correlation coefficient α with one or more thresholds having values fixed a priori, Step 6: Transmit an under-sampled sequence comprising only the selected images, for at least one selected image, ∘ search in a temporal neighborhood of the selected image for an image that is sharper than the selected image, ∘ retransmit the sharper image. ∘ search in a temporal neighborhood of the selected image for an image that is sharper than the selected image, ∘ retransmit the sharper image. <EOS>